{"type": "FeatureCollection", "features": [{"id": "10.1007/s00442-012-2578-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:23Z", "type": "Journal Article", "created": "2013-01-07", "title": "Effects Of Drought And N-Fertilization On N Cycling In Two Grassland Soils", "description": "Open AccessOecologia, 171 (3)", "keywords": ["[SDE] Environmental Sciences", "N2O fluxes", "550", "functional genes", "Nitrogen", "[SDV]Life Sciences [q-bio]", "Climate", "Climate Change", "Nitrification and denitrification", "enzyme activites", "Urine", "630", "10127 Institute of Evolutionary Biology and Environmental Studies", "Soil", "Quantitative PCR", "Climate change; Enzyme activities; Functional genes; Quantitative PCR; Nitrification and denitrification; N2O fluxes", "[SDV.BV]Life Sciences [q-bio]/Vegetal Biology", "Animals", "Climate change", "Enzyme activities", "[SDV.BV] Life Sciences [q-bio]/Vegetal Biology", "Ecosystem", "Soil Microbiology", "Functional genes", "Nitrogen Cycle", "Plants", "Archaea", "Droughts", "[SDV] Life Sciences [q-bio]", "1105 Ecology", " Evolution", " Behavior and Systematics", "climate change", "Genes", " Bacterial", "[SDE]Environmental Sciences", "quantitative PCR", "Denitrification", "570 Life sciences; biology", "590 Animals (Zoology)", "Cattle", "nitrification and denitrification"]}, "links": [{"href": "https://doi.org/10.1007/s00442-012-2578-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-012-2578-3", "name": "item", "description": "10.1007/s00442-012-2578-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-012-2578-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-01-08T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.04.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:17Z", "type": "Journal Article", "created": "2015-04-18", "title": "Will Changes In Climate And Land Use Affect Soil Organic Matter Composition? Evidence From An Ecotonal Climosequence", "description": "Abstract   As the largest actively cycling pool of terrestrial C, the response of soil organic matter (SOM) to climate change may greatly affect global C cycling and climate change feedbacks. Despite the influence of SOM chemistry\u2014here defined as soil organic C (SOC) and soil organic N (SON) functional groups and compounds\u2014on decomposition, uncertainty exists regarding the response of SOM chemistry to climate change and associated land use shifts. Here, we adopt a climosequence approach, using latitude along a uniform glacial till deposit at the grassland\u2013forest ecotone in central Canada as a surrogate for the effects of climate change on SOM chemistry. Additionally, we evaluate differences in SOM chemistry from paired native grassland, native trembling aspen ( Populus tremuloides ) forest, and arable soil profiles to investigate the effects of likely climate-induced land use alterations.  The combination of C and N  K -edge X-ray absorption near edge structure (XANES) with pyrolysis-field ionization mass spectrometry (Py-FIMS) techniques was used to examine SOM chemistry at atomic and molecular scales, respectively. These techniques revealed only modest differences in surface SOM chemistry related to land use and latitude. Greater variation was apparent in the vertical stratification of SOM constituents from soil depth profiles. These findings indicate that pedon-scale processes have greater control over SOM chemistry than do processes operating on landscape (e.g. land use) and regional (e.g. climate) scales. Additionally they imply that SOM chemistry is largely unresponsive to climatic change on the magnitude of the mean annual temperature (MAT) gradient under study (~\u00a00.7\u00a0\u00b0C), despite its location at the grassland\u2013forest boundary highlighting its sensitivity, and is similarly unresponsive to associated land use shifts.", "keywords": ["Vegetation", "Ecology and Evolutionary Biology", "Plant Sciences", "Agriculture", "Genetics and Genomics", "04 agricultural and veterinary sciences", "15. Life on land", "Soil quality", "13. Climate action", "Land use", "Climate change", "0401 agriculture", " forestry", " and fisheries", "Organic nitrogen", "Forest Sciences", "Organic carbon"], "contacts": [{"organization": "Purton, Kendra, Pennock, Dan, Leinweber, Peter, Walley, Fran,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.04.007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.04.007", "name": "item", "description": "10.1016/j.geoderma.2015.04.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.04.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-09-01T00:00:00Z"}}, {"id": "10.1002/eap.1648", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:13:52Z", "type": "Journal Article", "created": "2017-11-07", "title": "Crop rotations for increased soil carbon: perenniality as a guiding principle", "description": "Abstract<p>More diverse crop rotations have been promoted for their potential to remediate the range of ecosystem services compromised by biologically simplified grain\uffe2\uff80\uff90based agroecosystems, including increasing soil organic carbon (SOC). We hypothesized that functional diversity offers a more predictive means of characterizing the impact of crop rotations on SOC concentrations than species diversity per se. Furthermore, we hypothesized that functional diversity can either increase or decrease SOC depending on its associated carbon (C) input to soil. We compiled a database of 27 cropping system sites and 169 cropping systems, recorded the species and functional diversity of crop rotations, SOC concentrations (g C kg/soil), nitrogen (N) fertilizer applications (kg\uffc2\uffa0N\uffc2\uffb7ha\uffe2\uff88\uff921\uffc2\uffb7yr\uffe2\uff88\uff921), and estimated C input to soil (Mg\uffc2\uffa0C\uffc2\uffb7ha\uffe2\uff88\uff921\uffc2\uffb7yr\uffe2\uff88\uff921). We categorized crop rotations into three broad categories: grain\uffe2\uff80\uff90only rotations, grain rotations with cover crops, and grain rotations with perennial crops. We divided the grain\uffe2\uff80\uff90only rotations into two sub\uffe2\uff80\uff90categories: cereal\uffe2\uff80\uff90only rotations and those that included both cereals and a legume grain. We compared changes in SOC and C input using mean effect sizes and 95% bootstrapped confidence intervals. Cover cropped and perennial cropped rotations, relative to grain\uffe2\uff80\uff90only rotations, increased C input by 42% and 23% and SOC concentrations by 6.3% and 12.5%, respectively. Within grain\uffe2\uff80\uff90only rotations, cereal\uffc2\uffa0+\uffc2\uffa0legume grain rotations decreased total C input (\uffe2\uff88\uff9216%), root C input (\uffe2\uff88\uff9212%), and SOC (\uffe2\uff88\uff925.3%) relative to cereal\uffe2\uff80\uff90only rotations. We found no effect of species diversity on SOC within grain\uffe2\uff80\uff90only rotations. N fertilizer rates mediated the effect of functional diversity on SOC within grain\uffe2\uff80\uff90only crop rotations: at low N fertilizer rates (\uffe2\uff89\uffa475\uffc2\uffa0kg N\uffc2\uffb7ha\uffe2\uff88\uff921\uffc2\uffb7yr\uffe2\uff88\uff921), the decrease in SOC with cereal\uffc2\uffa0+\uffc2\uffa0legume grain rotations was less than at high N fertilizer rates. Our results show that increasing the functional diversity of crop rotations is more likely to increase SOC concentrations if it is accompanied by an increase in C input. Functionally diverse perennial and cover cropped rotations increased both C input and SOC concentrations, potentially by exploiting niches in time that would otherwise be unproductive, that is, increasing the \uffe2\uff80\uff9cperenniality\uffe2\uff80\uff9d of crop rotations.</p>", "keywords": ["Crops", " Agricultural", "2. Zero hunger", "Science", "Ecology and Evolutionary Biology", "Agriculture", "Fabaceae", "cropping systems", "04 agricultural and veterinary sciences", "15. Life on land", "functional diversity", "Poaceae", "sustainable agriculture", "Soil", "meta\u2010analysis", "soil organic matter", "0401 agriculture", " forestry", " and fisheries", "cover crops", "soil carbon", "Organic Chemicals", "perennials", "Fertilizers", "nitrogen fertilizer", "biodiversity"]}, "links": [{"href": "https://doi.org/10.1002/eap.1648"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Applications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/eap.1648", "name": "item", "description": "10.1002/eap.1648", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/eap.1648"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-12-27T00:00:00Z"}}, {"id": "10.1002/ece3.5244", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:13:53Z", "type": "Journal Article", "created": "2019-06-10", "title": "Evolution of interdisciplinarity in biodiversity science", "description": "Abstract<p>The study of biodiversity has grown exponentially in the last thirty years in response to demands for greater understanding of the function and importance of Earth's biodiversity and finding solutions to conserve it. Here, we test the hypothesis that biodiversity science has become more interdisciplinary over time. To do so, we analyze 97,945 peer\uffe2\uff80\uff90reviewed articles over a twenty\uffe2\uff80\uff90two\uffe2\uff80\uff90year time period (1990\uffe2\uff80\uff932012) with a continuous time dynamic model, which classifies articles into concepts (i.e., topics and ideas) based on word co\uffe2\uff80\uff90occurrences. Using the model output, we then quantify different aspects of interdisciplinarity: concept diversity, that is, the diversity of topics and ideas across subdisciplines in biodiversity science, subdiscipline diversity, that is, the diversity of subdisciplines across concepts, and network structure, which captures interactions between concepts and subdisciplines. We found that, on average, concept and subdiscipline diversity in biodiversity science were either stable or declining, patterns which were driven by the persistence of rare concepts and subdisciplines and a decline in the diversity of common concepts and subdisciplines, respectively. Moreover, our results provide evidence that conceptual homogenization, that is, decreases in temporal \uffce\uffb2 concept diversity, underlies the observed trends in interdisciplinarity. Together, our results reveal that biodiversity science is undergoing a dynamic phase as a scientific discipline that is consolidating around a core set of concepts. Our results suggest that progress toward addressing the biodiversity crisis via greater interdisciplinarity during the study period may have been slowed by extrinsic factors, such as the failure to invest in research spanning across concepts and disciplines. However, recent initiatives such as the Intergovernmental Science\uffe2\uff80\uff90Policy Platform on Biodiversity and Ecosystem Services (IPBES) may attract broader support for biodiversity\uffe2\uff80\uff90related issues and hence interdisciplinary approaches to address scientific, political, and societal challenges in the coming years.</p>", "keywords": ["0301 basic medicine", "bibliographic analysis", "topic models", "0303 health sciences", "03 medical and health sciences", "conceptual homogenization", "interdisciplinarity", "Ecology", "13. Climate action", "15. Life on land", "Academic Practice in Ecology and Evolution", "QH540-549.5", "biodiversity"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.5244"}, {"href": "https://doi.org/10.1002/ece3.5244"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology%20and%20Evolution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/ece3.5244", "name": "item", "description": "10.1002/ece3.5244", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/ece3.5244"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-01T00:00:00Z"}}, {"id": "10.1002/ecs2.2645", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:13:53Z", "type": "Journal Article", "created": "2019-03-19", "title": "Uneven global distribution of food web studies under climate change", "description": "Abstract<p>Trophic interactions within food webs affect species distributions, coexistence, and provision of ecosystem services but can be strongly impacted by climatic changes. Understanding these impacts is therefore essential for managing ecosystems and sustaining human well\uffe2\uff80\uff90being. Here, we conducted a global synthesis of terrestrial, marine, and freshwater studies to identify key gaps in our knowledge of climate change impacts on food webs and determine whether the areas currently studied are those most likely to be impacted by climate change. We found research suffers from a strong geographic bias, with only 3.5% of studies occurring in the tropics. Importantly, the distribution of sites sampled under projected climate changes was biased\uffe2\uff80\uff94areas with decreases or large increases in precipitation and areas with low magnitudes of temperature change were under\uffe2\uff80\uff90represented. Our results suggest that understanding of climate change impacts on food webs could be broadened by considering more than two trophic levels, responses in addition to species abundance and biomass, impacts of a wider suite of climatic variables, and tropical ecosystems. Most importantly, to enable better forecasts of biodiversity responses to climate change, we identify critically under\uffe2\uff80\uff90represented geographic regions and climatic conditions which should be prioritized in future research.</p", "keywords": ["TERRESTRIAL", "0106 biological sciences", "0301 basic medicine", "extreme events", "SPECIES INTERACTIONS", "warming", "ecipitation", "precipitation", "01 natural sciences", "333", "03 medical and health sciences", "terrestrial", "14. Life underwater", "freshwater", "Food chains (Ecology)", "2. Zero hunger", "species interactions", "data gaps", "marine", "aquatic", "15. Life on land", "global", "Climate Science", "COMMUNITY", "climate change", "Ecology", " evolutionary biology", "13. Climate action", "food webs", "Climatic changes -- Research", "Klimatvetenskap"]}, "links": [{"href": "https://esajournals.onlinelibrary.wiley.com/doi/pdf/10.1002/ecs2.2645"}, {"href": "https://doi.org/10.1002/ecs2.2645"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/ecs2.2645", "name": "item", "description": "10.1002/ecs2.2645", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/ecs2.2645"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-03-01T00:00:00Z"}}, {"id": "10.1016/j.envexpbot.2020.104095", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:54Z", "type": "Journal Article", "created": "2020-04-25", "title": "Alternation of wet and dry sides during partial rootzone drying irrigation enhances leaf ethylene evolution", "description": "Soil drying increases endogenous ABA and ACC concentrations in planta, but how these compounds interact to regulate stomatal responses to soil drying and re-watering is still unclear. To determine the temporal dynamics and physiological significance of root, xylem and leaf ABA and ACC concentrations in response to deficit irrigation (DI) or partial rootzone drying (PRD-F) and re-watering, these variables were measured in plants exposed to similar whole pot soil water contents. Both DI and PRD-F plants received only a fraction of the irrigation supplied to well-watered (WW) plants, either to all (DI) or part (PRD-F) of the rootzone of plants grown in split-pots. Both DI and PRD-F induced partial stomatal closure, increased root ABA and ACC accumulation consistent with local soil water content, but did not affect xylem or leaf concentrations of these compounds compared to WW plants. Two hours after re-watering all (DI-RW) or part of the rootzone (PRD-A) to the same soil water content, stomatal conductance returned to WW values or further decreased respectively. Re-watering the whole rootzone had no effect on xylem and leaf ABA and ACC concentrations, while re-watering the dry side of the pot in PRD plants had no effect on xylem and leaf ABA concentrations but increased xylem and leaf ACC concentrations and leaf ethylene evolution. Leaf water potential was similar between all irrigation treatments, with stomatal conductance declining as xylem ABA concentrations and leaf ACC concentrations increased. Prior to re-watering PRD plants, accounting for the spatial differences in soil water uptake best explained variation in xylem ACC concentration suggesting root-to-shoot ACC signalling, but this model did not account for variation in xylem ACC concentration after re-watering the dry side of PRD plants. Thus local (foliar) and long-distance (root-to-shoot) variation in ACC status both seem important in regulating the temporal dynamics of foliar ethylene evolution in plants exposed to PRD.", "keywords": ["0106 biological sciences", "Irrigation", "Stomatal conductance", "Root-to-shoot signalling", "Ethylene", "Physiological significance", "Deficit irrigation", "Plant Science", "Leaf water", "F06 Irrigation", "01 natural sciences", "ACC", "Ecology", " Evolution", " Behavior and Systematics", "580", "2. Zero hunger", "Xylem", "15. Life on land", "F60 Plant physiology and biochemistry", "6. Clean water", "Horticulture", "13. Climate action", "Soil water", "Agronomy and Crop Science", "Soil moisture heterogeneity", "Partial rootzone drying"]}, "links": [{"href": "https://eprints.lancs.ac.uk/id/eprint/144510/1/Juan_EEB_Manuscript_final.pdf"}, {"href": "https://doi.org/10.1016/j.envexpbot.2020.104095"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20and%20Experimental%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envexpbot.2020.104095", "name": "item", "description": "10.1016/j.envexpbot.2020.104095", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envexpbot.2020.104095"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-08-01T00:00:00Z"}}, {"id": "10.1007/s00248-003-9001-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:13Z", "type": "Journal Article", "created": "2004-06-15", "title": "Microbial Community Structure And Oxidative Enzyme Activity In Nitrogen-Amended North Temperate Forest Soils", "description": "Large regions of temperate forest are subject to elevated atmospheric nitrogen (N) deposition which can affect soil organic matter dynamics by altering mass loss rates, soil respiration, and dissolved organic matter production. At present there is no general model that links these responses to changes in the organization and operation of microbial decomposer communities. Toward that end, we studied the response of litter and soil microbial communities to high levels of N amendment (30 and 80 kg ha(-1) yr(-1)) in three types of northern temperate forest: sugar maple/basswood (SMBW), sugar maple/red oak (SMRO), and white oak/black oak (WOBO). We measured the activity of extracellular enzymes (EEA) involved directly in the oxidation of lignin and humus (phenol oxidase, peroxidase), and indirectly, through the production of hydrogen peroxide (glucose oxidase, glyoxal oxidase). Community composition was analyzed by extracting and quantifying phospholipid fatty acids (PLFA) from soils. Litter EEA responses at SMBW sites diverged from those at oak-bearing sites (SMRO, BOWO), but the changes were not statistically significant. For soil, EEA responses were consistent across forests types: phenol oxidase and peroxidase activities declined as a function of N dose (33-73% and 5-41%, respectively, depending on forest type); glucose oxidase and glyoxal oxidase activities increased (200-400% and 150-300%, respectively, depending on forest type). Principal component analysis (PCA) ordinated forest types and treatment responses along two axes; factor 1 (44% of variance) was associated with phenol oxidase and peroxidase activities, factor 2 (31%) with glucose oxidase. Microbial biomass did not respond to N treatment, but nine of the 23 PLFA that formed >1 mol% of total biomass showed statistically significant treatment responses. PCA ordinated forest types and treatment responses along three axes (36%, 26%, 12% of variance). EEA factors 1 and 2 correlated negatively with PLFA factor 1 ( r = -0.20 and -0.35, respectively, n = 108) and positively with PLFA factor 3 ( r = +0.36 and +0.20, respectively, n = 108). In general, EEA responses were more strongly tied to changes in bacterial PLFA than to changes in fungal PLFA. Collectively, our data suggests that N inhibition of oxidative activity involves more than the repression of ligninase expression by white-rot basidiomycetes.", "keywords": ["Michigan", "Nitrogen", "Science", "Ecology and Evolutionary Biology", "Nature Conservation", "Microbiology", "Trees", "Soil", "Geoecology/Natural Processes", "Health Sciences", "Cellular and Developmental Biology", "Ecosystem", "Phospholipids", "Soil Microbiology", "2. Zero hunger", "Analysis of Variance", "Principal Component Analysis", "Ecology", "Life Sciences", "Natural Resources and Environment", "Molecular", "04 agricultural and veterinary sciences", "15. Life on land", "Enzymes", "13. Climate action", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1007/s00248-003-9001-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microbial%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00248-003-9001-x", "name": "item", "description": "10.1007/s00248-003-9001-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00248-003-9001-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-04-19T00:00:00Z"}}, {"id": "10.1007/pl00008869", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:12Z", "type": "Journal Article", "created": "2006-04-10", "title": "Combined Effects Of Atmospheric Co2 And N Availability On The Belowground Carbon And Nitrogen Dynamics Of Aspen Mesocosms", "description": "It is uncertain whether elevated atmospheric CO2 will increase C storage in terrestrial ecosystems without concomitant increases in plant access to N. Elevated CO2 may alter microbial activities that regulate soil N availability by changing the amount or composition of organic substrates produced by roots. Our objective was to determine the potential for elevated CO2 to change N availability in an experimental plant-soil system by affecting the acquisition of root-derived C by soil microbes. We grew Populus tremuloides (trembling aspen) cuttings for 2 years under two levels of atmospheric CO2 (36.7 and 71.5 Pa) and at two levels of soil N (210 and 970 \u00b5g N g-1). Ambient and twice-ambient CO2 concentrations were applied using open-top chambers, and soil N availability was manipulated by mixing soils differing in organic N content. From June to October of the second growing season, we measured midday rates of soil respiration. In August, we pulse-labeled plants with 14CO2 and measured soil 14CO2 respiration and the 14C contents of plants, soils, and microorganisms after a 6-day chase period. In conjunction with the August radio-labeling and again in October, we used 15N pool dilution techniques to measure in situ rates of gross N mineralization, N immobilization by microbes, and plant N uptake. At both levels of soil N availability, elevated CO2 significantly increased whole-plant and root biomass, and marginally increased whole-plant N capital. Significant increases in soil respiration were closely linked to increases in root biomass under elevated CO2. CO2 enrichment had no significant effect on the allometric distribution of biomass or 14C among plant components, total 14C allocation belowground, or cumulative (6-day) 14CO2 soil respiration. Elevated CO2 significantly increased microbial 14C contents, indicating greater availability of microbial substrates derived from roots. The near doubling of microbial 14C contents at elevated CO2 was a relatively small quantitative change in the belowground C cycle of our experimental system, but represents an ecologically significant effect on the dynamics of microbial growth. Rates of plant N uptake during both 6-day periods in August and October were significantly greater at elevated CO2, and were closely related to fine-root biomass. Gross N mineralization was not affected by elevated CO2. Despite significantly greater rates of N immobilization under elevated CO2, standing pools of microbial N were not affected by elevated CO2, suggesting that N was cycling through microbes more rapidly. Our results contained elements of both positive and negative feedback hypotheses, and may be most relevant to young, aggrading ecosystems, where soil resources are not yet fully exploited by plant roots. If the turnover of microbial N increases, higher rates of N immobilization may not decrease N availability to plants under elevated CO2.", "keywords": ["0106 biological sciences", "root-: biomass-", "Ecology and Evolutionary Biology", "nitrogen-fixation", "Environmental-Sciences)", "01 natural sciences", "nitrogen", "biomass-", "nitrogen-cycle", "nitrogen-", "Microorganisms-", "carbon-14", "124-38-9: CARBON DIOXIDE", "C Cycle", "Spermatophytes-", "Spermatophyta-", "Key Words Atmospheric CO2", "Cellular and Developmental Biology", "Populus Tremuloides Michx", "2. Zero hunger", "carbon-dioxide: atmospheric-", "plant-nutrition", "Climatology- (Environmental-Sciences)", "Angiosperms-", "Angiospermae-", "Plants-", "Natural Resources and Environment", "04 agricultural and veterinary sciences", "global-climate-change", "microbe- (Microorganisms-)", "7727-37-9: NITROGEN", "chemical-composition", "carbon-sequestration", "mineral-uptake", "soil-biology", "Science", "Vascular-Plants", "poplars-", "respiration-", "carbon-dioxide-enrichment", "carbon-dioxide", "Populus-tremuloides [trembling-aspen] (Salicaceae-)", "carbon-cycle", "Health Sciences", "Salicaceae-: Dicotyledones-", "soil-respiration", "content", "Plantae-", "14762-75-5: CARBON-14", "mineralization-", "Molecular", "forest-soils", "15. Life on land", "Rhizodeposition", "soil-flora", "N Cycle", "13. Climate action", "cuttings-", "roots-", "Legacy", "Terrestrial-Ecology (Ecology-", "0401 agriculture", " forestry", " and fisheries", "Dicots-", "ecosystems-"], "contacts": [{"organization": "Mikan, Carl J., Zak, Donald R., Kubiske, Mark E., Pregitzer, Kurt S.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/pl00008869"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/pl00008869", "name": "item", "description": "10.1007/pl00008869", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/pl00008869"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2000-08-23T00:00:00Z"}}, {"id": "10.1007/pl00008870", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:12Z", "type": "Journal Article", "created": "2006-04-10", "title": "Spring Ephemeral Herbs And Nitrogen Cycling In A Northern Hardwood Forest: An Experimental Test Of The Vernal Dam Hypothesis", "description": "In the late 1970s R.N. Muller and F.H. Bormann posited their 'vernal dam' hypothesis, stating that spring-ephemeral herbs in deciduous forests serve as a temporary sink for N when overstory trees are dormant, and then release this N later, in the summer, when the trees are active. This hypothesis has gained wide acceptance, yet two of its critical assumptions have never been experimentally tested: (1) that N taken up by spring ephemerals would otherwise be lost from the ecosystem, and (2) that N from senesced ephemeral tissues contributes to increased rates of summertime N mineralization. To test these assumptions, I quantified patterns of N cycling and loss from a set of paired plots, half of which served as controls and from half of which all spring-ephemeral plants were removed. There were no significant differences in NO3- leaching between plots with and without spring ephemeral vegetation. These results are consistent with the relatively low rates of N uptake by the dominant spring ephemeral, Allium tricoccum, and its apparent preference for NH4+, which is far less mobile in soil than NO3-. In addition, based on sequential sampling, I found that soil microorganisms took up 8 times as much N during the spring than did spring-ephemeral herbs (microbial uptake=3.19 vs. plant uptake=0.41 g N m-2), suggesting that microbial immobilization of N is the dominant sink for N during this season. Removal of spring ephemeral vegetation also had no effect on summertime rates of net N mineralization. Furthermore, the addition of spring ephemeral litter to soil+forest floor microcosms did not significantly increase rates of N mineralization in a laboratory incubation. Instead, this experiment demonstrated the overwhelming influence of forest floor litter in controlling the release of mineral N from these soils. Overall, neither assumption of the vernal dam hypothesis holds true in this ecosystem, where patterns of N cycling and loss appear to be dominated by microbial decomposition of forest floor material and soil organic matter.", "keywords": ["0106 biological sciences", "NO3\u2013 Leaching", "N Immobilization", "Science", "Ecology and Evolutionary Biology", "Key Words Vernal Dam", "Natural Resources and Environment", "Molecular", "04 agricultural and veterinary sciences", "15. Life on land", "Spring Ephemerals", "01 natural sciences", "Microbial Biomass", "Legacy", "Health Sciences", "0401 agriculture", " forestry", " and fisheries", "Cellular and Developmental Biology"], "contacts": [{"organization": "Rothstein, David E.", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/pl00008870"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/pl00008870", "name": "item", "description": "10.1007/pl00008870", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/pl00008870"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2000-08-23T00:00:00Z"}}, {"id": "10.1007/s00248-018-1305-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:13Z", "type": "Journal Article", "created": "2018-12-08", "title": "Soil Type and Cyanobacteria Species Influence the Macromolecular and Chemical Characteristics of the Polysaccharidic Matrix in Induced Biocrusts", "description": "Inoculation of soils with cyanobacteria is proposed as a sustainable biotechnological technique for restoration of degraded areas in drylands due to the important role that cyanobacteria and their exopolysaccharides (EPS) play in the environment. So far, few studies have analyzed the macromolecular and chemical characteristics of the polysaccharidic matrix in induced cyanobacterial biocrusts and the scarce existing studies have mainly focused on sandy soil textures. However, the characteristics of the cyanobacterial polysaccharidic matrix may greatly depend on soil type. The objective of this study was to examine the macromolecular distribution and monosaccharidic composition of the polysaccharidic matrix induced by inoculation of two cyanobacterial species common in arid environments, Phormidium ambiguum (non N-fixing) and Scytonema javanicum (N-fixing) in different soil types. S. javanicum promoted a higher release in the soil of the more soluble and less condensed EPS fraction (i.e., the loosely bound EPS fraction, LB-EPS), while P. ambiguum showed a higher release of the less soluble and more condensed EPS fraction (i.e., the tightly bound EPS fraction, TB-EPS). LB-EPSs were mainly composed of low MW molecules (<\u200950\u00a0kDa), while TB-EPSs were mainly composed of high MW molecules (1100-2000\u00a0kDa). The two EPS fractions showed a complex monosaccharidic composition (from 11 to 12 different types of monosaccharides), with glucose as the most abundant monosaccharide, in particular in the poorer soils characterized by lower organic C contents. In more C-rich soils, high abundances of galactose, mannose, and xylose were also found. Low abundance of uronic acids and hydrophobic monosaccharides, such as fucose and rhamnose, was found in the EPS extracted from the inoculated soils. Our results point to the influence of soil type on the macromolecular distribution and monosaccharide composition of the polysaccharidic matrix in induced biocrusts, which is likely to affect biocrust development and their role in soil structure and nutrient cycling in restored dryland soils.", "keywords": ["0301 basic medicine", "2. Zero hunger", "0303 health sciences", "Cyanobacteria inoculation", "Tightly bound EPS", "Polysaccharides", " Bacterial", "Biological soil crust; Cyanobacteria inoculation; Loosely bound EPS; Molecular weight; Monosaccharide composition; Tightly bound EPS; Ecology; Evolution; Behavior and Systematics; Ecology; Soil Science", "Biological soil crust", "Monosaccharide composition", "15. Life on land", "Cyanobacteria", "Molecular weight", "Biological soil crust; Cyanobacteria inoculation; Loosely bound EPS; Molecular weight; Monosaccharide composition; Tightly bound EPS; Ecology", " Evolution", " Behavior and Systematics; Ecology; Soil Science", "Soil", "03 medical and health sciences", "13. Climate action", "Loosely bound EPS", "Desert Climate", "Soil Microbiology"]}, "links": [{"href": "https://iris.unive.it/bitstream/10278/5089943/1/s00248-018-1305-y.pdf"}, {"href": "http://link.springer.com/content/pdf/10.1007/s00248-018-1305-y.pdf"}, {"href": "https://doi.org/10.1007/s00248-018-1305-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microbial%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00248-018-1305-y", "name": "item", "description": "10.1007/s00248-018-1305-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00248-018-1305-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-08T00:00:00Z"}}, {"id": "10.1007/s10021-005-0085-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:26Z", "type": "Journal Article", "created": "2006-03-20", "title": "Microbial Cycling Of C And N In Northern Hardwood Forests Receiving Chronic Atmospheric No3- Deposition", "description": "Sugar maple (Acer saccharum Marsh.)-dominated northern hardwood forests in the upper Lakes States region appear to be particularly sensitive to chronic atmospheric NO                   3                   \u2212                  deposition. Experimental NO                   3                   \u2212                  deposition (3 g NO                   3                   \u2212                  N m\u22122 y\u22121) has significantly reduced soil respiration and increased the export of DOC/DON and NO                   3                   \u2212                  across the region. Here, we evaluate the possibility that diminished microbial activity in mineral soil was responsible for these ecosystem-level responses to NO                   3                   \u2212                  deposition. To test this alternative, we measured microbial biomass, respiration, and N transformations in the mineral soil of four northern hardwood stands that have received 9 years of experimental NO                   3                   \u2212                  deposition. Microbial biomass, microbial respiration, and daily rates of gross and net N transformations were not changed by NO                   3                   \u2212                  deposition. We also observed no effect of NO                   3                   \u2212                  deposition on annual rates of net N mineralization. However, NO                   3                   \u2212                  deposition significantly increased (27%) annual net nitrification, a response that resulted from rapid microbial NO                   3                   \u2212                  assimilation, the subsequent turnover of NH                   4                   +                 , and increased substrate availability for this process. Nonetheless, greater rates of net nitrification were insufficient to produce the 10-fold observed increase in NO                   3                   \u2212                  export, suggesting that much of the exported NO                   3                   \u2212                  resulted directly from the NO                   3                   \u2212                  deposition treatment. Results suggest that declines in soil respiration and increases in DOC/DON export cannot be attributed to NO                   3                   \u2212                 -induced physiological changes in mineral soil microbial activity. Given the lack of response we have observed in mineral soil, our results point to the potential importance of microbial communities in forest floor, including both saprotrophs and mycorrhizae, in mediating ecosystem-level responses to chronic NO                   3                   \u2212                  deposition in Lake States northern hardwood forests.", "keywords": ["0106 biological sciences", "Ecology", "Science", "Plant Sciences", "Soil C and N Cycling", "Ecology and Evolutionary Biology", "Life Sciences", "Natural Resources and Environment", "Nature Conservation", "Northern Hardwood Forests", "04 agricultural and veterinary sciences", "15. Life on land", "Microbial Respiration", "Nitrification", "01 natural sciences", "Environmental Management", "N Mineralization", "Geoecology/Natural Processes", "13. Climate action", "Atmospheric NO 3 \u2212 Deposition", "0401 agriculture", " forestry", " and fisheries", "Zoology"]}, "links": [{"href": "https://doi.org/10.1007/s10021-005-0085-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10021-005-0085-7", "name": "item", "description": "10.1007/s10021-005-0085-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-005-0085-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-03-01T00:00:00Z"}}, {"id": "10.1007/s00442-006-0381-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:22Z", "type": "Journal Article", "created": "2006-02-17", "description": "The aspen free-air CO2 and O3 enrichment (FACTS II-FACE) study in Rhinelander, Wisconsin, USA, is designed to understand the mechanisms by which young northern deciduous forest ecosystems respond to elevated atmospheric carbon dioxide (CO2) and elevated tropospheric ozone (O3) in a replicated, factorial, field experiment. Soil respiration is the second largest flux of carbon (C) in these ecosystems, and the objective of this study was to understand how soil respiration responded to the experimental treatments as these fast-growing stands of pure aspen and birch + aspen approached maximum leaf area. Rates of soil respiration were typically lowest in the elevated O3 treatment. Elevated CO2 significantly stimulated soil respiration (8-26%) compared to the control treatment in both community types over all three growing seasons. In years 6-7 of the experiment, the greatest rates of soil respiration occurred in the interaction treatment (CO2 + O3), and rates of soil respiration were 15-25% greater in this treatment than in the elevated CO2 treatment, depending on year and community type. Two of the treatments, elevated CO2 and elevated CO2 + O3, were fumigated with 13C-depleted CO2, and in these two treatments we used standard isotope mixing models to understand the proportions of new and old C in soil respiration. During the peak of the growing season, C fixed since the initiation of the experiment in 1998 (new C) accounted for 60-80% of total soil respiration. The isotope measurements independently confirmed that more new C was respired from the interaction treatment compared to the elevated CO2 treatment. A period of low soil moisture late in the 2003 growing season resulted in soil respiration with an isotopic signature 4-6 per thousand enriched in 13C compared to sample dates when the percentage soil moisture was higher. In 2004, an extended period of low soil moisture during August and early September, punctuated by a significant rainfall event, resulted in soil respiration that was temporarily 4-6 per thousand more depleted in 13C. Up to 50% of the Earth's forests will see elevated concentrations of both CO2 and O3 in the coming decades and these interacting atmospheric trace gases stimulated soil respiration in this study.", "keywords": ["0106 biological sciences", "Science", "Ecology and Evolutionary Biology", "Cell Respiration", "Acer", "Carbon Cycling", "Plant Roots", "01 natural sciences", "Trees", "Soil", "Ozone", "Stable Isotope", "Air Pollution", "Health Sciences", "\u03b4 13 C", "Global Change", "Cellular and Developmental Biology", "Betula", "Ecosystem", "Soil Microbiology", "Carbon Isotopes", "Atmosphere", "Natural Resources and Environment", "Molecular", "Carbon Dioxide", "15. Life on land", "Populus", "13. Climate action"]}, "links": [{"href": "https://doi.org/10.1007/s00442-006-0381-8"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-006-0381-8", "name": "item", "description": "10.1007/s00442-006-0381-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-006-0381-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-02-18T00:00:00Z"}}, {"id": "10.1007/s00442-005-0191-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:22Z", "type": "Journal Article", "created": "2005-07-22", "title": "Fine Root Chemistry And Decomposition In Model Communities Of North-Temperate Tree Species Show Little Response To Elevated Atmospheric Co2 And Varying Soil Resource Availability", "description": "Rising atmospheric [CO2] has the potential to alter soil carbon (C) cycling by increasing the content of recalcitrant constituents in plant litter, thereby decreasing rates of decomposition. Because fine root turnover constitutes a large fraction of annual NPP, changes in fine root decomposition are especially important. These responses will likely be affected by soil resource availability and the life history characteristics of the dominant tree species. We evaluated the effects of elevated atmospheric [CO2] and soil resource availability on the production and chemistry, mycorrhizal colonization, and decomposition of fine roots in an early- and late-successional tree species that are economically and ecologically important in north temperate forests. Open-top chambers were used to expose young trembling aspen (Populus tremuloides) and sugar maple (Acer saccharum) trees to ambient (36 Pa) and elevated (56 Pa) atmospheric CO2. Soil resource availability was composed of two treatments that bracketed the range found in the Upper Lake States, USA. After 2.5 years of growth, sugar maple had greater fine root standing crop due to relatively greater allocation to fine roots (30% of total root biomass) relative to aspen (7% total root biomass). Relative to the low soil resources treatment, aspen fine root biomass increased 76% with increased soil resource availability, but only under elevated [CO2]. Sugar maple fine root biomass increased 26% with increased soil resource availability (relative to the low soil resources treatment), and showed little response to elevated [CO2]. Concentrations of N and soluble phenolics, and C/N ratio in roots were similar for the two species, but aspen had slightly higher lignin and lower condensed tannins contents compared to sugar maple. As predicted by source-sink models of carbon allocation, pooled constituents (C/N ratio, soluble phenolics) increased in response to increased relative carbon availability (elevated [CO2]/low soil resource availability), however, biosynthetically distinct compounds (lignin, starch, condensed tannins) did not always respond as predicted. We found that mycorrhizal colonization of fine roots was not strongly affected by atmospheric [CO2] or soil resource availability, as indicated by root ergosterol contents. Overall, absolute changes in root chemical composition in response to increases in C and soil resource availability were small and had no effect on soil fungal biomass or specific rates of fine root decomposition. We conclude that root contributions to soil carbon cycling will mainly be influenced by fine root production and turnover responses to rising atmospheric [CO2], rather than changes in substrate chemistry.", "keywords": ["0106 biological sciences", "Science", "Climate", "Ecology and Evolutionary Biology", "Plant Roots", "01 natural sciences", "Trees", "Sugar Maple", "Soil", "Ergosterol", "Health Sciences", "Carbon-based Secondary Compounds", "Biomass", "Cellular and Developmental Biology", "Ecosystem", "Soil Microbiology", "Atmosphere", "Fungi", "Natural Resources and Environment", "Molecular", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Soil C Cycling", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Trembling Aspen"]}, "links": [{"href": "https://doi.org/10.1007/s00442-005-0191-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-005-0191-4", "name": "item", "description": "10.1007/s00442-005-0191-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-005-0191-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-07-23T00:00:00Z"}}, {"id": "10.1007/s00442-005-0249-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:22Z", "type": "Journal Article", "created": "2005-10-04", "title": "Fungal Community Composition And Metabolism Under Elevated Co2 And O-3", "description": "Atmospheric CO(2) and O(3) concentrations are increasing due to human activity and both trace gases have the potential to alter C cycling in forest ecosystems. Because soil microorganisms depend on plant litter as a source of energy for metabolism, changes in the amount or the biochemistry of plant litter produced under elevated CO(2) and O(3) could alter microbial community function and composition. Previously, we have observed that elevated CO(2) increased the microbial metabolism of cellulose and chitin, whereas elevated O(3) dampened this response. We hypothesized that this change in metabolism under CO(2) and O(3) enrichment would be accompanied by a concomitant change in fungal community composition. We tested our hypothesis at the free-air CO(2) and O(3) enrichment (FACE) experiment at Rhinelander, Wisconsin, in which Populus tremuloides, Betula papyrifera, and Acer saccharum were grown under factorial CO(2) and O(3) treatments. We employed extracellular enzyme analysis to assay microbial metabolism, phospholipid fatty acid (PLFA) analysis to determine changes in microbial community composition, and polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) to analyze the fungal community composition. The activities of 1,4-beta-glucosidase (+37%) and 1,4,-beta-N-acetylglucosaminidase (+84%) were significantly increased under elevated CO(2), whereas 1,4-beta-glucosidase activity (-25%) was significantly suppressed by elevated O(3). There was no significant main effect of elevated CO(2) or O(3) on fungal relative abundance, as measured by PLFA. We identified 39 fungal taxonomic units from soil using DGGE, and found that O(3) enrichment significantly altered fungal community composition. We conclude that fungal metabolism is altered under elevated CO(2) and O(3), and that there was a concomitant change in fungal community composition under elevated O(3). Thus, changes in plant inputs to soil under elevated CO(2) and O(3) can propagate through the microbial food web to alter the cycling of C in soil.", "keywords": ["0106 biological sciences", "Food Chain", "Extracellular Enzymes", "Science", "Ecology and Evolutionary Biology", "Polymerase Chain Reaction\u2013Denaturing Gradient Gel Electrophoresis", "Polymerase Chain Reaction", "01 natural sciences", "Soil Microbial Community", "Soil", "Ozone", "Health Sciences", "Acetylglucosaminidase", "Cellular and Developmental Biology", "Ecosystem", "Soil Microbiology", "beta-Glucosidase", "Fatty Acids", "Fungi", "Natural Resources and Environment", "Molecular", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Fungal Metabolism", "Carbon", "Free-air CO 2 and O 3 Enrichment", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Extracellular Space"]}, "links": [{"href": "https://doi.org/10.1007/s00442-005-0249-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-005-0249-3", "name": "item", "description": "10.1007/s00442-005-0249-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-005-0249-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-10-05T00:00:00Z"}}, {"id": "10.1007/s00442-009-1516-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:23Z", "type": "Journal Article", "created": "2009-12-04", "title": "Combined Effects Of Precipitation And Nitrogen Deposition On Native And Invasive Winter Annual Production In California Deserts", "description": "Primary production in deserts is limited by soil moisture and N availability, and thus is likely to be influenced by both anthropogenic N deposition and precipitation regimes altered as a consequence of climate change. Invasive annual grasses are particularly responsive to increases in N and water availabilities, which may result in competition with native forb communities. Additionally, conditions favoring increased invasive grass production in arid and semi-arid regions can increase fire risk, negatively impacting woody vegetation that is not adapted to fire. We conducted a seeded garden experiment and a 5-year field fertilization experiment to investigate how winter annual production is altered by increasing N supply under a range of water availabilities. The greatest production of invasive grasses and native forbs in the garden experiment occurred under the highest soil N (inorganic N after fertilization = 2.99 g m(-2)) and highest watering regime, indicating these species are limited by both water and N. A classification and regression tree (CART) analysis on the multi-year field fertilization study showed that winter annual biomass was primarily limited by November-December precipitation. Biomass exceeded the threshold capable of carrying fire when inorganic soil N availability was at least 3.2 g m(-2) in pi\u00f1on-juniper woodland. Due to water limitation in creosote bush scrub, biomass exceeded the fire threshold only under very wet conditions regardless of soil N status. The CART analyses also revealed that percent cover of invasive grasses and native forbs is primarily dependent on the timing and amount of precipitation and secondarily dependent on soil N and site-specific characteristics. In total, our results indicate that areas of high N deposition will be susceptible to grass invasion, particularly in wet years, potentially reducing native species cover and increasing the risk of fire.", "keywords": ["0106 biological sciences", "Time Factors", "Schismus", "Non-native", "Bromus", "Nitrogen", "Climate Change", "Rain", "Plant Development", "Poaceae", "01 natural sciences", "California", "Fires", "Soil", "Climate change", "Biomass", "Ecology", " Evolution", " Behavior and Systematics", "0105 earth and related environmental sciences", "2. Zero hunger", "Ecology", "Geography", "Ecosystem ecology - Original paper", "Plant Sciences", "Life Sciences", "Water", "Agriculture", "Plants", "15. Life on land", "Fuel load", "6. Clean water", "13. Climate action", "Fertilization", "Regression Analysis", "Seasons", "Desert Climate"], "contacts": [{"organization": "Rao, Leela E., Allen, Edith B.,", "roles": ["creator"]}]}, "links": [{"href": "https://escholarship.org/content/qt8qv4f2kn/qt8qv4f2kn.pdf"}, {"href": "https://doi.org/10.1007/s00442-009-1516-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-009-1516-5", "name": "item", "description": "10.1007/s00442-009-1516-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-009-1516-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-12-05T00:00:00Z"}}, {"id": "10.1007/s00442-011-2133-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:23Z", "type": "Journal Article", "created": "2011-10-04", "title": "Soil Warming Alters Nitrogen Cycling In A New England Forest: Implications For Ecosystem Function And Structure", "description": "Global climate change is expected to affect terrestrial ecosystems in a variety of ways. Some of the more well-studied effects include the biogeochemical feedbacks to the climate system that can either increase or decrease the atmospheric load of greenhouse gases such as carbon dioxide and nitrous oxide. Less well-studied are the effects of climate change on the linkages between soil and plant processes. Here, we report the effects of soil warming on these linkages observed in a large field manipulation of a deciduous forest in southern New England, USA, where soil was continuously warmed 5\u00b0C above ambient for 7 years. Over this period, we have observed significant changes to the nitrogen cycle that have the potential to affect tree species composition in the long term. Since the start of the experiment, we have documented a 45% average annual increase in net nitrogen mineralization and a three-fold increase in nitrification such that in years 5 through 7, 25% of the nitrogen mineralized is then nitrified. The warming-induced increase of available nitrogen resulted in increases in the foliar nitrogen content and the relative growth rate of trees in the warmed area. Acer rubrum (red maple) trees have responded the most after 7 years of warming, with the greatest increases in both foliar nitrogen content and relative growth rates. Our study suggests that considering species-specific responses to increases in nitrogen availability and changes in nitrogen form is important in predicting future forest composition and feedbacks to the climate system.", "keywords": ["Ecosystem ecology - Original Paper", "0106 biological sciences", "550", "Nitrogen", "Climate Change", "Population Dynamics", "Acer", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "Nitrate Reductase", "01 natural sciences", "Trees", "Soil", "Species Specificity", "New England", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Ecology", " Evolution", " Behavior and Systematics", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1007/s00442-011-2133-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-011-2133-7", "name": "item", "description": "10.1007/s00442-011-2133-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-011-2133-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-10-05T00:00:00Z"}}, {"id": "10.1007/s00442-012-2360-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:23Z", "type": "Journal Article", "created": "2012-05-21", "title": "Consequences Of Exclusion Of Precipitation On Microorganisms And Microbial Consumers In Montane Tropical Rainforests", "description": "The structure and functioning of decomposer systems heavily relies on soil moisture. However, this has been primarily studied in temperate ecosystems; little is known about how soil moisture affects the microfaunal food web in tropical regions. This lack of knowledge is surprising, since the microfaunal food web controls major ecosystem processes. To evaluate the role of precipitation in the structure of soil food web components (i.e., microorganisms and testate amoebae), we excluded water input by rain in montane rainforests at different altitudes in Ecuador. Rain exclusion strongly reduced microbial biomass and respiration by about 50\u00a0%, and fungal biomass by 23\u00a0%. In testate amoebae, rain exclusion decreased the density of live cells by 91\u00a0% and caused a shift in species composition at each of the altitudes studied, with ergosterol concentrations, microbial biomass, and water content explaining 25\u00a0% of the variation in species data. The results document that reduced precipitation negatively affects soil microorganisms, but that the response of testate amoebae markedly exceeds that of bacteria and fungi. This suggests that, in addition to food, low precipitation directly affects the community structure of testate amoebae, with the effect being more pronounced at lower altitudes. Overall, the results show that microorganisms and testate amoebae rapidly respond to a reduction in precipitation, with testate amoebae-representatives of higher trophic levels-being more sensitive. The results imply that precipitation and soil moisture in tropical rainforests are the main factors regulating decomposition and nutrient turnover.", "keywords": ["2. Zero hunger", "0106 biological sciences", "Tropical Climate", "Food Chain", "Rain", "Water", "15. Life on land", "01 natural sciences", "Trees", "Soil", "13. Climate action", "Community ecology - Original research", "Biomass", "Ecuador", "Amoeba", "Ecology", " Evolution", " Behavior and Systematics", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1007/s00442-012-2360-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-012-2360-6", "name": "item", "description": "10.1007/s00442-012-2360-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-012-2360-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-05-22T00:00:00Z"}}, {"id": "10.1007/s004420050375", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:24Z", "type": "Journal Article", "created": "2002-08-25", "title": "Response Of Soil Biota To Elevated Atmospheric Co 2 In Poplar Model Systems", "description": "We tested the hypotheses that increased belowground allocation of carbon by hybrid poplar saplings grown under elevated atmospheric CO2 would increase mass or turnover of soil biota in bulk but not in rhizosphere soil. Hybrid poplar saplings (Populus\u00d7euramericana cv. Eugenei) were grown for 5 months in open-bottom root boxes at the University of Michigan Biological Station in northern, lower Michigan. The experimental design was a randomized-block design with factorial combinations of high or low soil N and ambient (34 Pa) or elevated (69 Pa) CO2 in five blocks. Rhizosphere microbial biomass carbon was 1.7 times greater in high-than in low-N soil, and did not respond to elevated CO2. The density of protozoa did not respond to soil N but increased marginally (P\u2009<\u20090.06) under elevated CO2. Only in high-N soil did arbuscular mycorrhizal fungi and microarthropods respond to CO2. In high-N soil, arbuscular mycorrhizal root mass was twice as great, and extramatrical hyphae were 11% longer in elevated than in ambient CO2 treatments. Microarthropod density and activity were determined in situ using minirhizotrons. Microarthropod density did not change in response to elevated CO2, but in high-N soil, microarthropods were more strongly associated with fine roots under elevated than ambient treatments. Overall, in contrast to the hypotheses, the strongest response to elevated atmospheric CO2 was in the rhizosphere where (1) unchanged microbial biomass and greater numbers of protozoa (P\u2009<\u20090.06) suggested faster bacterial turnover, (2) arbuscular mycorrhizal root length increased, and (3) the number of microarthropods observed on fine roots rose.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Arbuscular Mycorrhizas", "Microarthropods", "Science", "Ecology and Evolutionary Biology", "Natural Resources and Environment", "Molecular", "04 agricultural and veterinary sciences", "15. Life on land", "Roots", "01 natural sciences", "Microbial Biomass", "Legacy", "Health Sciences", "0401 agriculture", " forestry", " and fisheries", "Key Words Atmospheric CO2", "Cellular and Developmental Biology"], "contacts": [{"organization": "Treonis, Amy, Lussenhop, John, Teeri, James A., Curtis, Peter S., Vogel, Christoph S.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s004420050375"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s004420050375", "name": "item", "description": "10.1007/s004420050375", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s004420050375"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1998-01-09T00:00:00Z"}}, {"id": "10.1007/s004420100656", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:24Z", "type": "Journal Article", "created": "2003-02-13", "title": "Fine-Root Biomass And Fluxes Of Soil Carbon In Young Stands Of Paper Birch And Trembling Aspen As Affected By Elevated Atmospheric Co2 And Tropospheric O3", "description": "Rising atmospheric CO2 may stimulate future forest productivity, possibly increasing carbon storage in terrestrial ecosystems, but how tropospheric ozone will modify this response is unknown. Because of the importance of fine roots to the belowground C cycle, we monitored fine-root biomass and associated C fluxes in regenerating stands of trembling aspen, and mixed stands of trembling aspen and paper birch at FACTS-II, the Aspen FACE project in Rhinelander, Wisconsin. Free-air CO2 enrichment (FACE) was used to elevate concentrations of CO2 (average enrichment concentration 535\u00a0\u00b5l l-1) and O3 (53\u00a0nl l-1) in developing forest stands in 1998 and 1999. Soil respiration, soil pCO2, and dissolved organic carbon in soil solution (DOC) were monitored biweekly. Soil respiration was measured with a portable infrared gas analyzer. Soil pCO2 and DOC samples were collected from soil gas wells and tension lysimeters, respectively, at depths of 15, 30, and 125\u00a0cm. Fine-root biomass averaged 263\u00a0g m-2 in control plots and increased 96% under elevated CO2. The increased root biomass was accompanied by a 39% increase in soil respiration and a 27% increase in soil pCO2. Both soil respiration and pCO2 exhibited a strong seasonal signal, which was positively correlated with soil temperature. DOC concentrations in soil solution averaged ~12\u00a0mg l-1 in surface horizons, declined with depth, and were little affected by the treatments. A simplified belowground C budget for the site indicated that native soil organic matter still dominated the system, and that soil respiration was by far the largest flux. Ozone decreased the above responses to elevated CO2, but effects were rarely statistically significant. We conclude that regenerating stands of northern hardwoods have the potential for substantially greater C input to soil due to greater fine-root production under elevated CO2. Greater fine-root biomass will be accompanied by greater soil C efflux as soil respiration, but leaching losses of C will probably be unaffected.", "keywords": ["0106 biological sciences", "Ecology and Evolutionary Biology", "Aspen-FACE-project", "root-", "USA-", "pollutants-", "Environmental-Sciences)", "tropospheric-ozone", "forest-productivity", "01 natural sciences", "biomass-", "northern-forests", "124-38-9: CARBON DIOXIDE", "soil-carbon-flux", "terrestrial-ecosystems", "populus-tremuloides", "Cellular and Developmental Biology", "soil-carbon", "7440-44-0: CARBON", "carbon-", "fine-root", "Bioenergetics- (Biochemistry-and-Molecular-Biophysics)", "Natural Resources and Environment", "04 agricultural and veterinary sciences", "GLOBAL-ECOLOGY", "North-America", "Nearctic-region)", "Rhinelander- (Wisconsin-", "carbon-sequestration", "atmosphere-", "biomass-production", "dissolved-organic-carbon [DOC-]", "Science", "respiration-", "carbon-dioxide-enrichment", "forest-plantations", "carbon-dioxide", "carbon-storage", "fine-root-biomass", "belowground-biomass", "United-States-Wisconsin-Rhinelander", "carbon-cycle", "Health Sciences", "ozone-", "soil-respiration", "air-pollution", "global-change", "atmospheric-carbon-dioxide", "biomass", "Molecular", "15. Life on land", "ozone", "13. Climate action", "roots-", "Legacy", "Terrestrial-Ecology (Ecology-", "free-air-carbon-dioxide-enrichment [FREE-]: experimental-method", "0401 agriculture", " forestry", " and fisheries", "Northern Forests Global Change Carbon Sequestration Soil Respiration Dissolved Organic Carbon Soil PCO2"]}, "links": [{"href": "https://doi.org/10.1007/s004420100656"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s004420100656", "name": "item", "description": "10.1007/s004420100656", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s004420100656"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-07-01T00:00:00Z"}}, {"id": "10.1007/s10021-008-9219-z", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:26Z", "type": "Journal Article", "created": "2008-12-16", "title": "Increased Litter Build Up And Soil Organic Matter Stabilization In A Poplar Plantation After 6 Years Of Atmospheric Co2 Enrichment (Face): Final Results Of Pop-Euroface Compared To Other Forest Face Experiments", "description": "Free air CO2 enrichment (FACE) experiments in aggrading temperate forests and plantations have been initiated to test whether temperate forest ecosystems act as sinks for anthropogenic emissions of CO2. These FACE experiments have demonstrated increases in net primary production and carbon (C) storage in forest vegetation due to increased atmospheric CO2 concentrations. However, the fate of this extra biomass in the forest floor or mineral soil is less clear. After 6\u00a0years of FACE treatment in a short-rotation poplar plantation, we observed an additional sink of 32\u00a0g C\u00a0m\u22122\u00a0y\u22121 in the forest floor. Mineral soil C content increased equally under ambient and increased CO2 treatment during the 6-year experiment. However, during the first half of the experiment the increase in soil C was suppressed under FACE due to a priming effect, that is, the additional labile C increased the mineralization of older SOM, whereas during the second half of the experiment the increase in soil C was larger under FACE. An additional sink of 54\u00a0g C\u00a0m\u22122\u00a0y\u22121 in the top 10\u00a0cm of the mineral soil was created under FACE during the second half of the experiment. Although, this FACE effect was not significant due to a combination of soil spatial variability and the low number of replicates that are inherent to the present generation of forest stand FACE experiments. Physical fractionation by wet sieving revealed an increase in the C and nitrogen (N) content of macro-aggregates due to FACE. Further fractionation by density showed that FACE increased C and N contents of the light iPOM and mineral associated intra-macro-aggregate fractions. Isolation of micro-aggregates from macro-aggregates and subsequent fractionation by density revealed that FACE increased C and N contents of the light iPOM, C content of the fine iPOM and C and N contents of the mineral associated intra-micro-aggregate fractions. From this we infer that the amount of stabilized C and N increased under FACE treatment. We compared our data with published results of other forest FACE experiments and infer that the type of vegetation and soil base saturation, as a proxy for bioturbation, are important factors related to the size of the additional C sinks of the forest floor\u2013soil system under FACE.", "keywords": ["tropospheric o-3", "elevated co2", "n-fertilization", "Ecology", "mineral soil", "terrestrial ecosystems", "deciduous forest", "04 agricultural and veterinary sciences", "carbon storage", "cultivated soils", "15. Life on land", "13. Climate action", "biomass production", "Environmental Chemistry", "0401 agriculture", " forestry", " and fisheries", "nitrogen-use efficiency", "Ecology", " Evolution", " Behavior and Systematics"]}, "links": [{"href": "https://doi.org/10.1007/s10021-008-9219-z"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10021-008-9219-z", "name": "item", "description": "10.1007/s10021-008-9219-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-008-9219-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-12-17T00:00:00Z"}}, {"id": "10.1007/s10021-009-9305-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:27Z", "type": "Journal Article", "created": "2010-01-04", "title": "Effects Of A Hurricane Disturbance On Aboveground Forest Structure, Arbuscular Mycorrhizae And Belowground Carbon In A Restored Tropical Forest", "description": "To better understand how management and restoration practices influence the response of terrestrial ecosystems to large-scale disturbances, it is critical to study above- and belowground effects. In this study, we examined the immediate effect of a major hurricane on aboveground forest structure, arbuscular mycorrhizae (AM) and belowground carbon pools in experimentally thinned plots in a tropical forest. The hurricane occurred five years after a thinning treatment, when thinned plots had similar aboveground carbon stocks but different forest structure compared to control plots. Thinned plots had more large diameter (>10 cm) trees compared to the control plots, which were characterized by a higher density of small diameter (<10 cm) trees. Despite pre-hurricane differences in forest structure, there were no significant differences between treatments in changes of canopy openness or number of affected trees following the hurricane. Thinned plots had larger belowground carbon pools than the controls plots before the hurricane, and these differences remained after the hurricane despite rapid decomposition of organic matter rich in nitrogen. There were no pre-hurricane differences in AM fungal spores or total AM root colonization. The hurricane reduced AM sporulation by nearly 50% in both treatments, yet we observed a significant increase in AM root colonization after the hurricane with greater AM colonization in the thinned plots. Hurricanes have well-known visible aboveground effects, but here we showed that less visible belowground effects are influenced by forest management and may play an important role in forest recovery.", "keywords": ["0106 biological sciences", "Ecology", "13. Climate action", "Environmental Chemistry", "15. Life on land", "01 natural sciences", "Ecology", " Evolution", " Behavior and Systematics"]}, "links": [{"href": "https://doi.org/10.1007/s10021-009-9305-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10021-009-9305-x", "name": "item", "description": "10.1007/s10021-009-9305-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-009-9305-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-01-01T00:00:00Z"}}, {"id": "10.1007/s10021-013-9690-z", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:28Z", "type": "Journal Article", "created": "2013-06-28", "title": "Pedogenic Thresholds And Soil Process Domains In Basalt-Derived Soils", "description": "Pedogenic thresholds occur where soil properties change abruptly and/or nonlinearly with a small increment in environmental forcing; soil process domains are the regions between thresholds where soils change much more gradually across a large range of environmental forcing. We evaluated thresholds and domains in basalt-derived soils on two rainfall gradients in Hawaii\u2014one from 260 to 3,540 mm/y precipitation on 150,000-year-old substrate, the other from 600 to 3,760 mm/y on 4,100,000-year-old substrate. We identified thresholds associated with the initiation of biological uplift of nutrients at about 700 mm/y on the younger substrate, the depletion of primary minerals at about 2,100 mm/y on the younger and about 900 mm/y on the older substrate, and the initiation of anoxic conditions and associated Fe mobility at about 2,500 mm/y on the older substrate. These thresholds delineated process domains characterized by pedogenic carbonate accumulation and wind erosion (dry young substrate); by weathering and biological uplift of nutrients (intermediate rainfall young substrate and dry old substrate); by surface Fe enrichment and nutrient depletion (wet young substrate and intermediate rainfall old substrate); and by Fe mobilization and loss (wet old substrate). Soils on the older substrate were more highly weathered, lower in total and available P, and characterized by more crystalline clays than otherwise comparable soils on the younger substrate. Prior to European contact, Hawaiian cultivators developed an intensive rainfed agricultural system in the weathering/biological uplift domain on the younger substrate; we suggest that only this domain could support indigenous agricultural intensification in upland soils.", "keywords": ["2. Zero hunger", "Ecology", "biological uplift", "pedogenic threshold", "04 agricultural and veterinary sciences", "Biological Sciences", "15. Life on land", "01 natural sciences", "Hawaii", "gradient", "weathering", "Environmental Chemistry", "0401 agriculture", " forestry", " and fisheries", "indigenous agriculture", "process domain", "Environmental Sciences", "Ecology", " Evolution", " Behavior and Systematics", "basalt-derived soil", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Vitousek, Peter M, Chadwick, Oliver A,", "roles": ["creator"]}]}, "links": [{"href": "https://escholarship.org/content/qt0267w3mm/qt0267w3mm.pdf"}, {"href": "https://doi.org/10.1007/s10021-013-9690-z"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10021-013-9690-z", "name": "item", "description": "10.1007/s10021-013-9690-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-013-9690-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-06-29T00:00:00Z"}}, {"id": "10.1007/s10021-015-9855-z", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:28Z", "type": "Journal Article", "created": "2015-03-09", "title": "Defoliation And Soil Compaction Jointly Drive Large-Herbivore Grazing Effects On Plants And Soil Arthropods On Clay Soil", "description": "In addition to the well-studied impacts of defecation and defoliation, large herbivores also affect plant and arthropod communities through trampling, and the associated soil compaction. Soil compaction can be expected to be particularly important on wet, fine-textured soils. Therefore, we established a full factorial experiment of defoliation (monthly mowing) and soil compaction (using a rammer, annually) on a clay-rich salt marsh at the Dutch coast, aiming to disentangle the importance of these two factors. Additionally, we compared the effects on soil physical properties, plants, and arthropods to those at a nearby cattle-grazed marsh under dry and under waterlogged conditions. Soil physical conditions of the compacted plots were similar to the conditions at cattle-grazed plots, showing decreased soil aeration and increased waterlogging. Soil salinity was doubled by defoliation and quadrupled by combined defoliation and compaction. Cover of the dominant tall grass Elytrigia atherica was decreased by 80% in the defoliated plots, but cover of halophytes only increased under combined defoliation and compaction. Effects on soil micro-arthropods were most severe under waterlogging, showing a fourfold decrease in abundance and a smaller mean body size under compaction. Although the combined treatment of defoliation and trampling indeed proved most similar to the grazed marsh, large discrepancies remained for both plant and soil fauna communities, presumably because of colonization time lags. We conclude that soil compaction and defoliation differently affect plant and arthropod communities in grazed ecosystems, and that the magnitude of their effects depends on herbivore density, productivity, and soil physical properties.", "keywords": ["COLLEMBOLA", "0106 biological sciences", "570", "wadden sea", "GRASSLAND", "growth", "cow", "DIVERSITY", "01 natural sciences", "630", "diversity", "Aranaea", "simulated grazing", "SALT-MARSH", "MOUNTAIN PASTURES", "MANAGEMENT", "Environmental Chemistry", "Acari", "NITROGEN MINERALIZATION", "nitrogen mineralization", "Ecology", " Evolution", " Behavior and Systematics", "2. Zero hunger", "macro-detritivores", "mountain pastures", "Ecology", "COW", "national", "collembola", "WADDEN SEA", "15. Life on land", "Coleoptera", "salt-marsh", "Collembola", "GROWTH", "grassland", "management"]}, "links": [{"href": "https://ueaeprints.uea.ac.uk/id/eprint/72900/1/Published_Version.PDF"}, {"href": "https://doi.org/10.1007/s10021-015-9855-z"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10021-015-9855-z", "name": "item", "description": "10.1007/s10021-015-9855-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-015-9855-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-03-10T00:00:00Z"}}, {"id": "10.1007/s10265-009-0294-9", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:29Z", "type": "Journal Article", "created": "2010-01-12", "title": "Taxonomic Identity, Phylogeny, Climate And Soil Fertility As Drivers Of Leaf Traits Across Chinese Grassland Biomes", "description": "Although broad-scale inter-specific patterns of leaf traits are influenced by climate, soil, and taxonomic identity, integrated assessments of these drivers remain rare. Here, we quantify these drivers in a field study of 171 plant species in 174 sites across Chinese grasslands, including the Tibetan Plateau, Inner Mongolia, and Xinjiang. General linear models were used to partition leaf trait variation. Of the total variation in leaf traits, on average 27% is due to taxonomic or phylogenetic differences among species within sites (pure species effect), 29% to variation among sites within species (pure site effect), 38% to joint effects of taxonomic and environmental factors (shared effect), and 6.2% to within-site and within-species variation. Examining the pure site effect, climate explained 7.8%, soil explained 7.4%, and climate and soil variables together accounted for 11%, leaving 18% of the inter-site variation due to factors other than climate or soil. The results do not support the hypothesis that soil fertility is the 'missing link' to explain leaf trait variation unexplained by climatic factors. Climate- and soil-induced leaf adaptations occur mostly among species, and leaf traits vary little within species in Chinese grassland plants, despite strongly varying climate and soil conditions.", "keywords": ["0106 biological sciences", "China", "Climate", "Soil fertility", "Poaceae", "01 natural sciences", "10127 Institute of Evolutionary Biology and Environmental Studies", "Soil", "Quantitative Trait", " Heritable", "Species Specificity", "1110 Plant Science", "Tibetan Plateau", "Leaf economics spectrum", "functional traits", "Photosynthesis", "Ecosystem", "Phylogeny", "2. Zero hunger", "photosynthesis", "soil fertility", "Inner Mongolia (China)", "15. Life on land", "Plant Leaves", "Inner Mongolia", "Linear Models", "leaf economics", "570 Life sciences; biology", "590 Animals (Zoology)", "Functional traits"]}, "links": [{"href": "https://doi.org/10.1007/s10265-009-0294-9"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Plant%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10265-009-0294-9", "name": "item", "description": "10.1007/s10265-009-0294-9", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10265-009-0294-9"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-01-13T00:00:00Z"}}, {"id": "10.1007/s10530-010-9921-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:34Z", "type": "Journal Article", "created": "2010-12-10", "title": "Frequent Burning Promotes Invasions Of Alien Plants Into A Mesic African Savanna", "description": "Fire is both inevitable and necessary for maintaining the structure and functioning of mesic savannas. Without disturbances such as fire and herbivory, tree cover can increase at the expense of grass cover and over time dominate mesic savannas. Consequently, repeated burning is widely used to suppress tree recruitment and control bush encroachment. However, the effect of regular burning on invasion by alien plant species is little understood. Here, vegetation data from a long-term fire experiment, which began in 1953 in a mesic Zimbabwean savanna, were used to test whether the frequency of burning promoted alien plant invasion. The fire treatments consisted of late season fires, lit at 1-, 2-, 3-, and 4-year intervals, and these regularly burnt plots were compared with unburnt plots. Results show that over half a century of frequent burning promoted the invasion by alien plants relative to areas where fire was excluded. More alien plant species became established in plots that had a higher frequency of burning. The proportion of alien species in the species assemblage was highest in the annually burnt plots followed by plots burnt biennially. Alien plant invasion was lowest in plots protected from fire but did not differ significantly between plots burnt triennially and quadrennially. Further, the abundance of five alien forbs increased significantly as the interval (in years) between fires became shorter. On average, the density of these alien forbs in annually burnt plots was at least ten times as high as the density of unburnt plots. Plant diversity was also altered by long-term burning. Total plant species richness was significantly lower in the unburnt plots compared to regularly burnt plots. These findings suggest that frequent burning of mesic savannas enhances invasion by alien plants, with short intervals between fires favouring alien forbs. Therefore, reducing the frequency of burning may be a key to minimising the risk of alien plant spread into mesic savannas, which is important because invasive plants pose a threat to native biodiversity and may alter savanna functioning.", "keywords": ["disturbance", "0106 biological sciences", "2. Zero hunger", "Ecology", "kruger-national-park", "south-africa", "biological invasions", "15. Life on land", "01 natural sciences", "METIS-302982", "vegetation", "ITC-ISI-JOURNAL-ARTICLE", "evolution", "ecology", "propagule pressure", "ecosystems", "fire-management", "Ecology", " Evolution", " Behavior and Systematics"]}, "links": [{"href": "https://doi.org/10.1007/s10530-010-9921-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biological%20Invasions", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10530-010-9921-6", "name": "item", "description": "10.1007/s10530-010-9921-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10530-010-9921-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-12-11T00:00:00Z"}}, {"id": "10.1007/s10530-011-0102-z", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:34Z", "type": "Journal Article", "created": "2011-09-15", "title": "Managing Invasions At The Cost Of Native Habitat? An Experimental Test Of The Impact Of Fire On The Invasion Of Chromolaena Odorata In A South African Savanna", "description": "<p>Successfully managing invasive plants in natural systems is extremely difficult. Recently however, progress has been made with an approach focused on changing ecosystem processes through the disturbance regime. We performed a large-scale (3 ha) full-factorial field experiment in densely invaded woodland in Hluhluwe-iMfolozi Park, a savanna reserve in South Africa, to study the effect of fire on the control of the pan-tropical invasive exotic shrub Chromolaena odorata in combination with the conventional method, i.e. manual clearing and herbicide application. We show how fire interacted with the conventional clearing of C. odorata and induced an intense canopy fire that caused a shift from woodland to grassland. After 2.5 years of monitoring, grasses were still dominant and re-invasion minimal. It is important to note that fire without prior clearing did not have the same effect and was not successful in reducing densities of C. odorata. An integrated control practice targeting the species with mechanical and chemical methods, while simultaneously targeting its habitat through fire, effectively controlled dense C. odorata thickets during the course of the experiment. However, this approach transformed regular surface fires into high-intensity canopy fires that are rare in savannas. We discuss how this altered fire regime may threaten native habitats, including fire-sensitive forest patches and riverine woodlands within the savanna mozaic. This is an important dilemma for managers that should not be overlooked and asks for long-term data on the impact of control programs on the native vegetation.</p>", "keywords": ["ALIEN PLANTS", "0106 biological sciences", "570", "BURN AGRICULTURE", "Ecology", "Conservation", "15. Life on land", "Fire", "ECOLOGY", "01 natural sciences", "Integrative management", "Tree-grass dynamics", "Hluhluwe-iMfolozi Park", "BIOLOGICAL INVASIONS", "EUPATORIUM-ODORATUM", "NATURE RESERVES", "ECOSYSTEMS", "Biological invasions", "NATIONAL-PARK", "ENVIRONMENTS FOLLOWING SLASH", "Ecology", " Evolution", " Behavior and Systematics", "TROPICAL SAVANNAS"]}, "links": [{"href": "https://doi.org/10.1007/s10530-011-0102-z"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biological%20Invasions", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10530-011-0102-z", "name": "item", "description": "10.1007/s10530-011-0102-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10530-011-0102-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-09-16T00:00:00Z"}}, {"id": "10.1007/s10518-021-01083-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:33Z", "type": "Journal Article", "created": "2021-04-08", "title": "Model of seismic design lateral force levels for the existing reinforced concrete European building stock", "description": "As part of the development of a European Seismic Risk Model 2020 (ESRM20), the spatial and temporal evolution of seismic design across Europe has been studied in order to bet- ter classify reinforced concrete buildings (which represent more than 30% of the approxi- mately 145 million residential, commercial and industrial buildings in Europe) and map them to vulnerability models based on simulated seismic design. This paper summarises the model that has been developed to assign the years when different seismic design levels (low code, moderate code and high code) were introduced in a number of European coun- tries and the associated lateral forces that were specified spatially within each country for the low and moderate codes for typical reinforced concrete mid-rise buildings. This process has led to an improved understanding of how design regulations evolved across Europe and how this has impacted the vulnerability of the European residential building stock. The model estimates that ~ 60% of the reinforced concrete buildings in Europe have been seis- mically designed, and of those buildings ~ 60% have been designed to low code, ~ 25% to moderate code and 15% to high code. This seismic design model aims at being a dynamic source of information that will be continuously updated with additional feedback from local experts and datasets. To this end, all of the data has been made openly available as shapefiles on a GitLab repository.", "keywords": ["Seismic design evolution ; Lateral force levels ; European building stock ; Exposure model ; Seismic zonation maps ; Seismic risk", "Physics", "ddc:530", "0211 other engineering and technologies", "Seismic design evolution", "02 engineering and technology", "624", "Exposure model", "530", "Seismic zonation maps", "Seismic risk", "11. Sustainability", "Lateral force levels", "European building stock", "info:eu-repo/classification/ddc/530"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s10518-021-01083-3.pdf"}, {"href": "https://doi.org/10.1007/s10518-021-01083-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bulletin%20of%20Earthquake%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10518-021-01083-3", "name": "item", "description": "10.1007/s10518-021-01083-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10518-021-01083-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-08T00:00:00Z"}}, {"id": "10.1007/s10531-017-1486-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:34Z", "type": "Journal Article", "created": "2017-12-13", "title": "Effects of climate change on the distribution of hoverfly species (Diptera: Syrphidae) in Southeast Europe", "description": "\u00a9 2017, Springer Science+Business Media B.V., part of Springer Nature. Climate change presents a serious threat to global biodiversity. Loss of pollinators in particular has major implications, with extirpation of these species potentially leading to severe losses in agriculture and, thus, economic losses. In this study, we forecast the effects of climate change on the distribution of hoverflies in Southeast Europe using species distribution modelling and climate change scenarios for two time-periods. For 2041\u20132060, 19 analysed species were predicted to increase their areas of occupancy, with the other 25 losing some of their ranges. For 2061\u20132080, 55% of species were predicted to increase their area of occupancy, while 45% were predicted to experience range decline. In general, range size changes for most species were below 20%, indicating a relatively high resilience of hoverflies to climate change when only environmental variables are considered. Additionally, range-restricted species are not predicted to lose more area proportionally to widespread species. Based on our results, two distributional trends can be established: the predicted gain of species in alpine regions, and future loss of species from lowland areas. Considering that the loss of pollinators from present lowland agricultural areas is predicted and that habitat degradation presents a threat to possible range expansion of hoverflies in the future, developing conservation management strategy for the preservation of these species is crucial. This study represents an important step towards the assessment of the effects of climate changes on hoverflies and can be a valuable asset in creating future conservation plan, thus helping in mitigating potential consequences.", "keywords": ["0106 biological sciences", "LAND-USE", "SELECTING THRESHOLDS", "Global warming", "AQUATIC ECOSYSTEMS", "Conservation", "15. Life on land", "DISTRIBUTION MODELS", "EXTINCTION RISK", "01 natural sciences", "Conservation \u00b7 Global warming \u00b7 Insects \u00b7 Endemism \u00b7 Species distribution modelling", "ENVIRONMENTAL-CHANGE", "Insects", "Environmental sciences", "Ecology", " evolutionary biology", "13. Climate action", "Species distribution modelling", "GEOGRAPHIC DISTRIBUTIONS", "LANDSCAPE STRUCTURE", "AGRICULTURAL INTENSIFICATION", "BALKAN PENINSULA", "Endemism"]}, "links": [{"href": "http://link.springer.com/content/pdf/10.1007/s10531-017-1486-6.pdf"}, {"href": "https://doi.org/10.1007/s10531-017-1486-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biodiversity%20and%20Conservation", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10531-017-1486-6", "name": "item", "description": "10.1007/s10531-017-1486-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10531-017-1486-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-12-13T00:00:00Z"}}, {"id": "10.1007/s10533-004-7112-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:34Z", "type": "Journal Article", "created": "2005-11-04", "title": "Extracellular Enzyme Activities And Soil Organic Matter Dynamics For Northern Hardwood Forests Receiving Simulated Nitrogen Deposition", "description": "Anthropogenic nitrogen enrichment alters decomposition processes that control the flux of carbon (C) and nitrogen (N) from soil organic matter (SOM) pools. To link N-driven changes in SOM to microbial responses, we measured the potential activity of several extracellular enzymes involved in SOM degradation at nine experimental sites located in northern Michigan. Each site has three treatment plots (ambient, +30 and +80 kg N ha 1 y 1 ). Litter and soil samples were collected on five dates over the third growing season of N treatment. Phenol oxidase, peroxidase and cellobiohydrolase activities showed significant responses to N additions. In the Acer saccha- rum-Tilia americana ecosystem, oxidative activity was 38% higher in the litter horizon of high N treatment plots, relative to ambient plots, while oxidative activity in mineral soil showed little change. In the A. saccharum-Quercus rubra and Q. velutina-Q. alba ecosystems, oxidative activities declined in both litter (15 and 23%, respectively) and soil (29 and 38%, respectively) in response to high N treatment while cellobiohydrolase activity increased (6 and 39% for litter, 29 and 18% for soil, respectively). Over 3 years, SOM content in the high N plots has decreased in the Acer-Tilia ecosystem and increased in the two Quercus ecosystems, relative to ambient plots. For all three ecosystems, differences in SOM content in relation to N treatment were directly related (r 2 = 0.92) to an enzyme activity factor that included both oxidative and hydrolytic enzyme responses.", "keywords": ["Soil Science & Conservation", "Decomposition", "Science", "Ecology and Evolutionary Biology", "Terrestrial Pollution", "Natural Resources and Environment", "Molecular", "04 agricultural and veterinary sciences", "15. Life on land", "Biochemistry", "Phenol Oxidase", "Geochemistry", "Cellulase", "Soil Organic Matter", "Health Sciences", "0401 agriculture", " forestry", " and fisheries", "Nitrogen Deposition", "Cellular and Developmental Biology", "General", "Extracellular Enzyme Activity", "Geosciences"]}, "links": [{"href": "https://doi.org/10.1007/s10533-004-7112-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-004-7112-1", "name": "item", "description": "10.1007/s10533-004-7112-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-004-7112-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-08-01T00:00:00Z"}}, {"id": "10.1007/s10584-012-0438-0", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:37Z", "type": "Journal Article", "created": "2012-03-27", "title": "Carbon Sequestration Potential Of Parkland Agroforestry In The Sahel", "description": "Abstract           <p>Establishing parkland agroforestry on currently treeless cropland in the West African Sahel may help mitigate climate change. To evaluate its potential, we used climatically suitable ranges for parklands for 19 climate scenarios, derived by ecological niche modeling, for estimating potential carbon stocks in parkland and treeless cropland. A biocarbon business model was used to evaluate profitability of hypothetical Terrestrial Carbon Projects (TCPs), across a range of farm sizes, farm numbers, carbon prices and benefit sharing mechanisms. Using climate analogues, we explored potential climate change trajectories for selected locations. If mature parklands covered their maximum range, carbon stocks in Sahelian productive land would be about 1,284\uffc2\uffa0Tg, compared to 725\uffc2\uffa0Tg in a treeless scenario. Due to slow increase rates of total system carbon by 0.4\uffc2\uffa0Mg\uffc2\uffa0C\uffc2\uffa0ha\uffe2\uff88\uff921 a\uffe2\uff88\uff921, most TCPs at carbon prices that seem realistic today were not feasible, or required the participation of large numbers of farmers. For small farms, few TCP scenarios were feasible, and low Net Present Values for farmers made it unlikely that carbon payments would motivate many to participate in TCPs, unless additional benefits were provided. Climate analogue locations indicated an uncertain climate trajectory for the Sahel, but most scenarios projected increasing aridity and reduced suitability for parklands. The potentially severe impacts of climate change on Sahelian ecosystems and the uncertain profitability of TCPs make the Sahel highly risky for carbon investments. Given the likelihood of degrading environmental conditions, the search for appropriate adaptation strategies should take precedence over promoting mitigation activities.</p>", "keywords": ["Carbon sequestration", "Carbon accounting", "Atmospheric Science", "Adaptation to Climate Change in Agriculture", "Economics", "Profitability index", "7. Clean energy", "01 natural sciences", "agroforestry", "Agricultural and Biological Sciences", "Climate change mitigation", "Range (aeronautics)", "Rangeland Degradation", "Natural resource economics", "Soil water", "11. Sustainability", "Rangeland Degradation and Pastoral Livelihoods", "Carbon fibers", "Climate change", "Business", "agriculture", "2. Zero hunger", "Global and Planetary Change", "Ecology", "Life Sciences", "Composite number", "04 agricultural and veterinary sciences", "Soil carbon", "Physical Sciences", "Composite material", "Atmospheric carbon cycle", "Management", " Monitoring", " Policy and Law", "Greenhouse gas", "Environmental science", "Global Forest Transition", "Agroforestry", "climate", "Biology", "Ecology", " Evolution", " Behavior and Systematics", "Ecosystem", "0105 earth and related environmental sciences", "Soil science", "15. Life on land", "carbon sequestration", "Materials science", "Carbon dioxide", "13. Climate action", "FOS: Biological sciences", "Environmental Science", "0401 agriculture", " forestry", " and fisheries", "Drivers and Impacts of Tropical Deforestation", "Finance"]}, "links": [{"href": "https://doi.org/10.1007/s10584-012-0438-0"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Climatic%20Change", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10584-012-0438-0", "name": "item", "description": "10.1007/s10584-012-0438-0", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10584-012-0438-0"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-03-28T00:00:00Z"}}, {"id": "10.1016/j.agee.2015.04.035", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:16Z", "type": "Journal Article", "created": "2015-05-28", "title": "Management opportunities to mitigate greenhouse gas emissions from Chinese agriculture", "description": "Open AccessL'agriculture repr\u00e9sente environ 11\u00a0% des \u00e9missions nationales de gaz \u00e0 effet de serre (GES) de la Chine. Gr\u00e2ce \u00e0 l'adoption de meilleures pratiques de gestion sp\u00e9cifiques \u00e0 la r\u00e9gion, les agriculteurs chinois peuvent contribuer \u00e0 la r\u00e9duction des \u00e9missions tout en maintenant la s\u00e9curit\u00e9 alimentaire de leur grande population (>1 300 millions). Cet article pr\u00e9sente les r\u00e9sultats d'une \u00e9valuation ascendante visant \u00e0 quantifier le potentiel technique des mesures d'att\u00e9nuation pour l'agriculture chinoise \u00e0 l'aide d'une m\u00e9ta-analyse de donn\u00e9es provenant de 240 publications pour les terres cultiv\u00e9es, 67 publications pour les prairies et 139 publications pour le b\u00e9tail, et fournit le sc\u00e9nario de r\u00e9f\u00e9rence pour l'analyse des co\u00fbts des mesures d'att\u00e9nuation identifi\u00e9es. Les options de gestion pr\u00e9sentant le plus grand potentiel d'att\u00e9nuation pour le riz ou les syst\u00e8mes de culture \u00e0 base de riz sont le travail de conservation, l'irrigation contr\u00f4l\u00e9e\u00a0; le remplacement de l'ur\u00e9e par du sulfate d'ammonium, l'application d'inhibiteurs d'azote (N), l'application d'engrais \u00e0 teneur r\u00e9duite en azote, la culture int\u00e9gr\u00e9e du riz, du poisson et du canard et l'application de biochar. Une r\u00e9duction de 15\u00a0% de l'application moyenne actuelle d'engrais azot\u00e9s synth\u00e9tiques pour le riz en Chine, soit 231 kg N ha\u22121, entra\u00eenerait une diminution de 12\u00a0% des \u00e9missions directes d'oxyde nitreux (N2O) dans le sol. L'application combin\u00e9e d'engrais chimiques et organiques, le travail de conservation, l'application de biochar et l'application r\u00e9duite d'azote sont des mesures possibles qui peuvent r\u00e9duire les \u00e9missions globales de GES des syst\u00e8mes de culture en montagne. Les apports d'engrais conventionnels pour les l\u00e9gumes de serre repr\u00e9sentent plus de 2 \u00e0 8 fois la demande optimale en nutriments des cultures. Une r\u00e9duction de 20 \u00e0 40\u00a0% de l'application d'engrais azot\u00e9s sur les cultures mara\u00eech\u00e8res peut r\u00e9duire les \u00e9missions de N2O de 32 \u00e0 121\u00a0%, sans avoir d'impact n\u00e9gatif sur le rendement. L'une des mesures d'att\u00e9nuation les plus importantes pour les prairies agricoles pourrait \u00eatre la conversion de terres cultiv\u00e9es \u00e0 faible rendement, en particulier sur les pentes, en terres arbustives ou en prairies, ce qui est \u00e9galement une option prometteuse pour r\u00e9duire l'\u00e9rosion des sols. En outre, l'exclusion du p\u00e2turage et la r\u00e9duction de l'intensit\u00e9 du p\u00e2turage peuvent augmenter la s\u00e9questration du COS et r\u00e9duire les \u00e9missions globales tout en am\u00e9liorant les prairies largement d\u00e9grad\u00e9es. Pour la production animale, o\u00f9 le fourrage de mauvaise qualit\u00e9 est couramment nourri, l'am\u00e9lioration de la gestion des p\u00e2turages et de la qualit\u00e9 de l'alimentation peut r\u00e9duire les \u00e9missions de m\u00e9thane (CH4) de 11\u00a0% et 5\u00a0% en moyenne. Les compl\u00e9ments alimentaires peuvent r\u00e9duire davantage les \u00e9missions de CH4, les lipides (r\u00e9duction de 15\u00a0%) et les tanins ou saponines (r\u00e9duction de 11\u00a0%) pr\u00e9sentant le plus grand potentiel. Nous sugg\u00e9rons \u00e9galement les mesures d'att\u00e9nuation les plus rentables sur le plan \u00e9conomique, en nous appuyant sur les travaux connexes sur la construction de courbes de co\u00fbts marginaux de r\u00e9duction pour le secteur.", "keywords": ["China", "Livestock", "550", "Cropping", "MACC", "Soil Science", "Cropland", "Rice Water Management and Productivity Enhancement", "Plant Science", "Greenhouse gas", "01 natural sciences", "7. Clean energy", "630", "Environmental science", "Meta-analysis in Ecology and Agriculture Research", "Tillage", "12. Responsible consumption", "Agricultural and Biological Sciences", "Fertilizer", "Engineering", "11. Sustainability", "Agroforestry", "Waste management", "Biology", "Ecology", " Evolution", " Behavior and Systematics", "0105 earth and related environmental sciences", "2. Zero hunger", "Technical potential", "Geography", "Ecology", "Economic potential", "Life Sciences", "Nutrient management", "Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "Grassland", "Agronomy", "6. Clean water", "Management", "Biochar", "Archaeology", "13. Climate action", "FOS: Biological sciences", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Aerobic Rice Systems", "Pyrolysis"]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2015.04.035"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2015.04.035", "name": "item", "description": "10.1016/j.agee.2015.04.035", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2015.04.035"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-11-01T00:00:00Z"}}, {"id": "10.1007/s11104-012-1248-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:49Z", "type": "Journal Article", "created": "2012-05-04", "title": "Effects Of Simulated Drought And Nitrogen Fertilizer On Plant Productivity And Nitrous Oxide (N2o) Emissions Of Two Pastures", "description": "Open AccessISSN:0032-079X", "keywords": ["Soil acidity", "Drought", "Soil microbial C and N", "04 agricultural and veterinary sciences", "15. Life on land", "Grassland", "Nitrification", "10127 Institute of Evolutionary Biology and Environmental Studies", "Grazing", "Greenhouse gases", "Summer drought", "13. Climate action", "1110 Plant Science", "Denitrification", "570 Life sciences; biology", "590 Animals (Zoology)", "0401 agriculture", " forestry", " and fisheries", "Compensatory growth; Denitrification; Drought; Grassland; Grazing; Greenhouse gases; Soil microbial C and N; Soil acidity; Nitrification; Summer drought", "Compensatory growth", "1111 Soil Science"]}, "links": [{"href": "https://doi.org/10.1007/s11104-012-1248-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-012-1248-x", "name": "item", "description": "10.1007/s11104-012-1248-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-012-1248-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-05-05T00:00:00Z"}}, {"id": "10.1016/j.jafr.2023.100732", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:23Z", "type": "Journal Article", "created": "2023-08-07", "title": "Aeromycological studies in the crops of the main cereals: A systematic review", "description": "Open AccessLes \u00e9tudes a\u00e9romycologiques sur les cultures c\u00e9r\u00e9ali\u00e8res permettent de d\u00e9terminer la variation temporelle des agents pathog\u00e8nes des plantes affectant la culture et de d\u00e9terminer le moment appropri\u00e9 pour appliquer les fongicides. Cependant, ce sujet n'a pas \u00e9t\u00e9 syst\u00e9matiquement revu. L'objectif de ce travail \u00e9tait d'analyser syst\u00e9matiquement toutes les \u00e9tudes a\u00e9romycologiques r\u00e9alis\u00e9es sur le ma\u00efs, le bl\u00e9, le riz, l'avoine, l'orge, le seigle, le sorgho et le millet. Une recherche syst\u00e9matique a \u00e9t\u00e9 effectu\u00e9e dans Scopus depuis le d\u00e9but de la base de donn\u00e9es jusqu'au 1er ao\u00fbt 2022. Les crit\u00e8res d'inclusion \u00e9taient qu'il s'agissait d'\u00e9tudes a\u00e9romycologiques sur le bl\u00e9 ou le riz ou le ma\u00efs ou l'avoine ou le sorgho ou le seigle ou l'orge ou le millet et d'\u00e9tudes publi\u00e9es dans des revues \u00e0 comit\u00e9 de lecture index\u00e9es dans Journal Citation Reports et r\u00e9dig\u00e9es en anglais ou en espagnol. Quarante-trois \u00e9tudes (21 sur le bl\u00e9, 15 sur le riz, 5 sur le ma\u00efs, 1 sur le sorgho et 2 sur l'orge) r\u00e9pondant \u00e0 tous les crit\u00e8res d'\u00e9ligibilit\u00e9 ont \u00e9t\u00e9 incluses (une des \u00e9tudes sur le ma\u00efs a \u00e9galement \u00e9t\u00e9 men\u00e9e sur le bl\u00e9). Aucune \u00e9tude a\u00e9romycologique n'a \u00e9t\u00e9 trouv\u00e9e chez l'avoine, le seigle et le millet. Il a \u00e9t\u00e9 not\u00e9 que la plupart des recherches a\u00e9romycologiques ont \u00e9t\u00e9 men\u00e9es sur les cultures de bl\u00e9 et principalement dans les pays des Am\u00e9riques. De plus, les propagules fongiques sont principalement collect\u00e9es par des m\u00e9thodes non viables, en utilisant divers types de collecteurs. En g\u00e9n\u00e9ral, les \u00e9tudes visaient \u00e0 identifier un agent pathog\u00e8ne sp\u00e9cifique et non \u00e0 la diversit\u00e9 des agents pathog\u00e8nes qui peuvent \u00eatre trouv\u00e9s. La relation des champignons identifi\u00e9s avec les param\u00e8tres m\u00e9t\u00e9orologiques \u00e9tait variable dans les diff\u00e9rentes \u00e9tudes. Cette revue syst\u00e9matique permet de r\u00e9sumer les \u00e9tudes a\u00e9romycologiques qui ont \u00e9t\u00e9 men\u00e9es sur les cultures de bl\u00e9, de riz, de ma\u00efs, de sorgho et d'orge. Il sugg\u00e8re \u00e9galement o\u00f9 les futures \u00e9tudes dans ce domaine devraient \u00eatre dirig\u00e9es, en fonction des limites rencontr\u00e9es.", "keywords": ["Impacts of Elevated CO2 and Ozone on Plant Physiology", "Agriculture (General)", "Health", " Toxicology and Mutagenesis", "Plant Science", "Crop", "S1-972", "Agricultural and Biological Sciences", "Barley", "Biochemistry", " Genetics and Molecular Biology", "TX341-641", "10. No inequality", "Biology", "Sorghum", "2. Zero hunger", "Corn", "Airborne spores", "Nutrition. Foods and food supply", "Life Sciences", "Phylogenetic Analysis", "Cell Biology", "15. Life on land", "2414.06 Hongos", "Agronomy", "3. Good health", "Wheat", "Environmental Science", "Physical Sciences", "Rice", "Indoor Air Quality and Health Effects", "Diversity and Evolution of Fungal Pathogens", "Biotechnology"]}, "links": [{"href": "https://doi.org/10.1016/j.jafr.2023.100732"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Agriculture%20and%20Food%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jafr.2023.100732", "name": "item", "description": "10.1016/j.jafr.2023.100732", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jafr.2023.100732"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-12-01T00:00:00Z"}}, {"id": "10.1007/s11130-020-00799-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:54Z", "type": "Journal Article", "created": "2020-02-03", "title": "Profile and Content of Residual Alkaloids in Ten Ecotypes of Lupinus mutabilis Sweet after Aqueous Debittering Process", "description": "Abstract<p>The evaluation of the level of alkaloids in edible Lupinus species is crucial from a food safety point of view. Debittering of lupin seeds has a long history; however, the control of the level of alkaloids after processing the seeds is typically only evaluated by changes in the bitter taste. The aim of this study was to evaluate the profile and residual levels of quinolizidine alkaloids (QA) in (Lupinus mutabilis Sweet) after aqueous debittering process. Samples from 10 ecotypes from different areas of Peru were analyzed before and after the process. Based on results obtained by gas chromatography and mass spectrometry, from eight alkaloids identified before the debittering process, only small amounts of lupanine (avg. 0.0012\uffc2\uffa0g/100\uffc2\uffa0g DM) and sparteine (avg. 0.0014\uffc2\uffa0g/100\uffc2\uffa0g DM) remained in the seeds after the debittering process, and no other alkaloids were identified. The aqueous debittering process reduced the content of alkaloids to levels far below the maximal level allowed by international regulations (\uffe2\uff89\uffa4 0.2\uffc2\uffa0g/kg DM).</p>", "keywords": ["0301 basic medicine", "Lupin Seeds", "Sparteine", "Organic chemistry", "Propiedades fisicoqu\u00edmicas", "Plant Science", "Gas Chromatography-Mass Spectrometry", "Evolution and Nutritional Properties of Lupin Seeds", "Agricultural and Biological Sciences", "Food science", "Per\u00fa", "03 medical and health sciences", "Deshidrataci\u00f3n acuosa", "Alkaloids", "Secado", "Tarwi", "https://purl.org/pe-repo/ocde/ford#2.11.01", "Granos", "Composici\u00f3n qu\u00edmica", "ta116", "Biology", "Ecotipos", "Ecology", " Evolution", " Behavior and Systematics", "Ecotype", "2. Zero hunger", "Original Paper", "0303 health sciences", "Rendimiento", "Procesamiento", "Evaluaci\u00f3n", "ta1183", "An\u00e1lisis organol\u00e9ptico", "ta1182", "Botany", "Life Sciences", "Diversity and Applications of Cyperus Species", "Lupinus", "Chocho", "Chemistry", "Contenido proteico", "Evolution and Ecology of Endophyte-Grass Symbiosis", "Taste", "Seeds", "Lupinus mutabilis"]}, "links": [{"href": "http://link.springer.com/content/pdf/10.1007/s11130-020-00799-y.pdf"}, {"href": "https://doi.org/10.1007/s11130-020-00799-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Foods%20for%20Human%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11130-020-00799-y", "name": "item", "description": "10.1007/s11130-020-00799-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11130-020-00799-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-02-03T00:00:00Z"}}, {"id": "10.1016/j.jappgeo.2020.103987", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:23Z", "type": "Journal Article", "created": "2020-03-04", "title": "Paleotopography continues to drive surface to deep-layer interactions in a subtropical Critical Zone Observatory", "description": "Abstract   Subsurface critical zone structures (SCZS) refer to the spatial variation in the interactive layers underground. Although SCZS greatly affect terrestrial biogeochemical and hydrological cycles, underpinning mechanisms are poorly documented. Herein, we characterized the SCZS of a typical red soil in subtropical China, a type of soil with vast global distribution. The thickness information of three layers was derived from hand augers, boreholes and ground-penetrating radar (GPR) radargrams and incorporated into geographically weighted regression (GWR) models for the reconstruction of paleotopography (Cretaceous sandstone). The interpreted GPR results in terms of thicknesses and interfaces for the three layers were consistent with the borehole logs. The trained GWR models accounted for 43%\u201377% of the spatial variations in the three layers. The paleotopographic elevations were highly correlated with those of the current land surface (r\u00a0=\u00a00.85). Spatial analysis showed that the rougher paleotopography was inherited by the current landform. The SCZS evolution involving mainly the mantling covered by Quaternary red clay (QRC) was primarily driven by terrain attributes. These findings may enhance our understanding of the interaction between the paleoclimate and paleoenvironment. The combination of geophysical techniques, geochemical indicators and spatial prediction techniques provides an effective tool for understanding QRC landform evolution.", "keywords": ["paleotopography", "landscape evolution", "550", "01 natural sciences", "CHINA", "Ground-penetrating radar", "THICKNESS", "EARTH", "QE", "NE/N007611/1", "SOIL-WATER STORAGE", "GEOGRAPHICALLY WEIGHTED REGRESSION", "0105 earth and related environmental sciences", "critical zone", "ground-penetrating radar", "Natural Environment Research Council (NERC)", "Critical zone", "CONSTRAINTS", "15. Life on land", "Landscape evolution", "EVOLUTION", "SOUTHERN", "QE Geology", "Geophysics", "Paleotopography", "13. Climate action", "Red Soil Critical Zone Observatory", "QUATERNARY RED CLAY"]}, "links": [{"href": "https://doi.org/10.1016/j.jappgeo.2020.103987"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Applied%20Geophysics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jappgeo.2020.103987", "name": "item", "description": "10.1016/j.jappgeo.2020.103987", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jappgeo.2020.103987"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-04-01T00:00:00Z"}}, {"id": "10.5061/dryad.51c59zwgj", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:21:24Z", "type": "Dataset", "created": "2024-04-02", "title": "Data from: Evidence for reductions in physical and chemical plant defense traits in island flora", "description": "Open Access# Evidence for Reductions in Physical and Chemical Plant Defense Traits in  Island Flora  [https://doi.org/10.5061/dryad.51c59zwgj](https://doi.org/10.5061/dryad.51c59zwgj) This dataset consists of three primary data sources: (1) Morphological and chemical measurements of leaf traits, collected from five taxonomic pairs of chaparral shrubs (*Ceanothus megacarpus*, *Cercocarpus betuloides*, *Dendromecon rigida/harfordii*, *Heteromeles arbutifolia*, *Prunus ilicifolia*) at three sites on the California Channel Islands (Santa Rosa, Santa Cruz, Santa Catalina) and three sites on the California mainland. (2) Morphological and chemical measurements of the same leaf traits from the same species, but this time measured from plants growing at botanic gardens (3) Morphological, chemical, and biomass data from a common garden experiment with *Stachys bullata*, with genotypes from two islands (Santa Rosa, Santa Cruz) and four mainland locations In addition, our analysis also includes bioclimatic data and local precipitation data accessed from publicly available sources. ## Description of the data and file structure This dataset is organized into two folders: **data_files** and **scripts** --- ***DATA_FILES*** Within the **data_files** folder, there are folders for '**Shrubs**' (corresponding to 1 and 2 above) and '**Stachys**' (corresponding to 3 above). **SHRUBS** The **Shrubs** folder contains one file (**Bowen and Van Vuren Effect Sizes.xlsx**), which summarizes the results from Bowen and Van Vuren (1997 ([https://www.jstor.org/stable/2387407](https://www.jstor.org/stable/2387407), directly as reported in their Tables 2, 3, 4, and 5 in the main text. Variables in this datafile include: 1. Trait - the plant trait that was measured in their study 2. Genus - the taxonomic unit being measured 3. t - the value of the t-statistic from a paired t-test of island vs. mainland samples for a given genus 4. n island - sample size for island plants 5. n mainland - sample size for mainland plants 6. Cohen's D - derived value that expresses insularity effect size for a given measure The **Shrubs** folder also contains four subfolders: **Cyanide**, **Images**, **Mapping**, and **Morphology** The **Cyanide** folder contains two files: 1. **cyanide_calibration.csv** - file containing measurements used to define calibration curve for quantifying evolved HCN from leaf tissue. 1. conc = concentration of potassium cyanide (KCN) standard used in calibration (mg/L) 2. abs = absorbance value returned by VWR V-1200 spectrometer, measured at 510 nm 2. **cyanide_measurements.csv** - file containing measurements of evolved HCN from field and botanic garden leaf tissue. PlantID values are the same as those reported for all other morphological measurements. 'NA' values in this dataset correspond to samples whose absorbance values were outside the range of our calibration curve or that were otherwise not suitable to include in analysis. 1. Age = whether leaf tissue was newly expanded ('young') or mature ('old') 2. Tissue_Mass = amount of frozen tissue used in assay (mg) 3. Dilution 1 = amount of water (mL) into which evolved HCN (in NaOH) was added prior to titration with citric acid. This value is 30 mL for all samples. 4. Dilution 2 = dilution factor. Here, a value of 1 means that 5 mL of citrate buffer was mixed with 5 mL water (1:1 ratio) and used in the subsequent reaction. A value of 10 means that 1 mL of citrate buffer was mixed with 10 mL water (1:10 ratio). 5. Sample Concentration = concentration of HCN in sample (mg/L), calculated using the calibration curve above. Samples with absorbance values above 0.500 were omitted and re-measured at reduced concentration, as this was beyond the concentration limit recommended by the manufacturer instructions. 6. Tissue Concentration = value relating dilution factor and sample mass to sample concentration. Expressed in milligrams of HCN per gram of leaf tissue. The **Images** folder contains all scanned leaf images (n = 626). File names correspond to plant species, plant ID, sampling site, and canopy position (see chaparral_leaf_morphology.csv below for a full description). So, for example, CMEG44_SMM_Upper refers to Ceanothus megacarpus, Plant ID = 44, sampled from the Santa Monica Mountains (SMM), upper canopy. Note also that each leaf within each image is individually numbered. The **Mapping** folder contains two files: 1. **shrubs_coordinates.csv** - contains coordinates and elevation for all field-sampled plants, recorded using a handheld Garmin GPS unit 2. **site_coordinates.csv** - contains broad site-level coordinates used for making map in Figure 1 The **Morphology** folder contains two files: 1. **chaparral_leaf_morphology.csv** - the primary datafile for this study, with each row (n = 5665) corresponding to a single leaf. For a visual depiction of the measurement protocol, see Supplemental Figures. Leaf measurements reported as NA generally correspond to leaves that were severely damaged, from which measurements could be reliably taken. 1. Index = sorting variable 2. IM = refers to whether a given plant was growing at an island or mainland site 3. Source = the original provenance of a given plant. For all field-sampled plants, the value here is the same as the value for 'Site' 4. Site = the location where plants were sampled. Includes all field sampling locations as well as the two botanic gardens 5. Exclosure = yes/no variable, only relevant to Catalina Island, describing whether sampled plant was inside of a deer exclosure 6. Species = taxon being measured 7. Plant = Plant ID, a unique value for each individual plant. Note that botanic garden samples have their own non-integer codes, and for Rancho Santa Ana Botanic Garden, these codes can be cross-referenced against the garden's living collections 8. Position = refers to whether a sampled branch came from the upper (&gt;2m) or lower portion of the plant's canopy 9. Aspect = recorded from the Garmin GPS, refers to predominant downward slope direction. Not recorded for botanic garden plants (marked as NA) or for plants from completely flat ground. 10. Elevation = elevation in meters of sampled plants 11. Diameter1 = diameter (cm) of the primary plant trunk at 0.25m (NA means that stem could not be reliably measured) 12. Diameter2 = diameter (cm) of any secondary plant trunk at 0.25m (only applicable for multi-stemmed plants; NA means that stem could not be reliably measured) 13. Stem_Area = derived measure of stem area (cm^2), based on trunk diameter, used as a rough proxy for plant age (NA means that stem could not be reliably measured) 14. 1st_year = refers to whether an individual leaf was newly emerged growth (1) or fully expanded and mature (0) 15. Leaf_ID = corresponds to the numbers in each leaf scan; identifies each individual leaf from a given branch 16. Leaf_Length = leaf length (cm) along its primary axis, excluding the petiole 17. Leaf_Area_petiole = leaf area (cm^2), including the petiole 18. Leaf_Area_no.petiole = leaf area (cm^2), excluding the petiole 19. Internal_area_correction = cumulative area of any 'holes' missing within the leaf perimeter (cm^2) 20. True_area = Leaf_Area_no.petiole minus Internal_area_correction (cm^2) 21. Leaf_area_corrected = leaf area, after manually filling in gaps missing due to presumed herbivore damage (cm^2) 22. Leaf_area_corrected_final = Leaf_area_corrected minus Internal_area_correction (cm^2) 23. Area_no_spines = leaf area after connecting vertices created by leaf spines (cm^2), using to calculate spinescence (%) 2. **shrub_leaf_masses.csv** - cumulative mass (g) of fully expanded leaf tissue from each branch, summed across all individual leaves. Used for calculating specific leaf area (SLA). **STACHYS** The **Stachys** folder contains three subfolders: **Chemistry**, **Morphology**, and **Setup** The **Chemistry** folder contains two files and one sub-directory: 1. **stachys_chromatograms** contains raw GC-MS readout for six leaf chemistry samples. Within each of the corresponding subfolders, the tic_front.csv file was used to generate the chromatograms shown in Figure 6A. 2. **stachys_compound_list.csv** is the full list of compounds detected in our samples. RT refers to the retention time (in minutes) of each compound. Identifications are putative. 3. **stachys_leaf_vocs.csv** is the full data matrix of leaf volatile compounds, with each sample as its own row and data columns each corresponding to a single compound. Values in this data matrix correspond to integrated peak areas, which are a proxy for the abundance of each compound. The **Morphology** folder contains two files: 1. **Anet-stbu.xlsx** contains gas exchange measurements for 26 plants measured in the common garden. The gas exchange column is net carbon assimilation, expressed as CO2 uptake per unit time per unit leaf area (\u00b5mol of CO2 m-2 s-1). 2. **sla_sbbg.csv** contains specific leaf area measurements for *Stachys* plants in the common garden. Note that plant #54 had died by the time of data collection, hence its values of NA across all columns. 1. ID = individual plant ID 2. SLA = cumulative area/ cumulative mass (cm^2/g) 3. leaves = refers to the number of leaves used for generating SLA measurement 4. area/leaf = cumulative area/ leaf number (cm^2/leaf) The **Setup** folder contains three files: 1. **321dailys.xls** is a file containing annual precipitation records (inches) for the Santa Barbara Botanic Garden, accessed from: [https://www.countyofsb.org/2328/Daily-Rainfall-Data-XLS](https://www.countyofsb.org/2328/Daily-Rainfall-Data-XLS) 2. **Field_Setup_SBBG.csv** is the primary file containing details on the primary garden experiment. Note that samples with masses recorded as NA were either dead at the time of sampling. Plants grown on Santa Cruz Island have values of NA for row and column, as this common garden was not arranged in a grid. 1. Index = individual plant ID 2. Population = provenance of plant 3. Garden = whether plants were grown at the Santa Barbara Botanic Garden (primary common garden site) or at the field station on Santa Cruz Island (secondary garden location with only Santa Cruz genotypes) 4. Genotype = identifier given to field-collected rhizomes, which were then propagated and split prior to planting out 5. Cumulative_Mass = mass (g) of paper bag and all of its contents, used for measuring end-of-season plant aboveground biomass 6. Bag_Mass = mass (g) of bag itself (without its contents) 7. Inside_Bag_Mass = mass (g) of smaller paper bags contained within larger bags, including all of their contents. Though not analyzed, these inside bags included all plant biomass collected from outside of the gopher cage that plants were growing in. 8. Inside_Bag_Only_Mass = as above, mass (g) of inner bag itself (without its contents) 9. Year = whether biomass was collected in 2016 or 2017 10. Row = grid location within common garden. Row 1 was at the bottom of the slope shown in Figure 2. 11. Column = grid location within common garden. 3. **stachys_coordinates.csv** contains coordinates for the six collecting sites, used to make the map in Figure 2. --- ***SCRIPTS*** All analyses for this project were conducted in the R programming language (version 4.1.3). Scripts used for analysis are arranged in two folders: **Shrubs** and **Stachys** The **Shrubs** folder contains the following scripts: 1. **coordinates_shrubs_stachys.R** - script used for generating all maps, including those in Figures 1 and 2 and the Google Earth maps in the supplementary figures 2. **cyanide_calibration.R** - script for plotting the calibration curve for relating evolved absorbance values to evolved HCN 3. **shrub_leaf_morphology_chemistry.R** - primary analysis script for manuscript, containing all major statistical analyses and plotting 4. **shrubs_BioClim.R** - script used for extracting bioclimatic data for field-sampled plants; containing code generating climate figures shown in supplementary materials The **Stachys** folder contains the following scripts: 1. **sbbg_precip_data.R** - very short script for summarizing water year totals for 2017 at the Santa Barbara Botanic Garden 2. **stachys_analysis.R** - primary script for generating all analyses and figures for *Stachys* common garden data 3. **stbu_gas_exchange.R** - script for analyzing gas exchange in common garden *Stachys* Note that for recreating some analyses and figures, users will need a Google Maps API key and will need to download data from the bioclim database. --- ## Sharing/Access information Data, code, and figures associated with this project are also available on GitHub at the following link: [https://github.com/micahfreedman/manuscripts/tree/master/Island_Mainland](https://github.com/micahfreedman/manuscripts/tree/master/Island_Mainland)", "keywords": ["Islands", "Morphology", "Dendromecon", "cyanogenic glycosides", "Ecology", "Terpenes", "Cercocarpus", "California Channel Islands", "Chemical ecology", "marginal spines", "Specific leaf area", "Plant science", "Heteromeles", "FOS: Biological sciences", "Stachys", "Other", "Prunus", "Herbivory", "Plant defenses", "Plant-herbivore interactions", "Ceanothus", "Ecology", " Evolution", " Behavior and Systematics"], "contacts": [{"organization": "Freedman, Micah", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.51c59zwgj"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.51c59zwgj", "name": "item", "description": "10.5061/dryad.51c59zwgj", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.51c59zwgj"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-01T00:00:00Z"}}, {"id": "10.1016/j.apsoil.2017.08.009", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:30Z", "type": "Journal Article", "created": "2017-09-18", "title": "Changes in the genetic structure of an invasive earthworm species (Lumbricus terrestris, Lumbricidae) along an urban \u2013 rural gradient in North America", "description": "European earthworms were introduced to North America by European settlers about 400 years ago. Human-mediated introductions significantly contributed to the spread of European species, which commonly are used as fishing bait and are often disposed deliberately in the wild. We investigated the genetic structure of Lumbricus terrestris in a 100 km range south of Calgary, Canada, an area that likely was devoid of this species two decades ago. Genetic relationships among populations, gene flow, and migration events among populations were investigated using seven microsatellite markers and the mitochondrial 16S rDNA gene. Earthworms were collected at different distances from the city and included fishing baits from three different bait distributors. The results suggest that field populations in Alberta established rather recently and that bait and field individuals in the study area have a common origin. Genetic variance within populations decreased outside of the urban area, and the most distant populations likely originated from a single introduction event. The results emphasise the utility of molecular tools to understand the spatial extent and connectivity of populations of exotic species, in particular soil-delling species, that invade native ecosystems and to obtain information on the origin of populations. Such information is crucial for developing management and prevention strategies to limit and control establishment of non-native earthworms in North America.", "keywords": ["0106 biological sciences", "0301 basic medicine", "570", "03 medical and health sciences", "Ecology", " evolutionary biology", "11. Sustainability", "15. Life on land", "Microsatellites", " Exotic earthworms", " Invasion", " Gene flow", " Dispersal", " Population structure", " Soil", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.apsoil.2017.08.009"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20Soil%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.apsoil.2017.08.009", "name": "item", "description": "10.1016/j.apsoil.2017.08.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.apsoil.2017.08.009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-11-01T00:00:00Z"}}, {"id": "10.1016/j.cell.2021.04.024", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:39Z", "type": "Journal Article", "created": "2021-05-18", "title": "Innovation, conservation, and repurposing of gene function in root cell type development", "description": "Plant species have evolved myriads of solutions, including complex cell type development and regulation, to adapt to dynamic environments. To understand this cellular diversity, we profiled tomato root cell type translatomes. Using xylem differentiation in tomato, examples of functional innovation, repurposing, and conservation of transcription factors are described, relative to the model plant Arabidopsis. Repurposing and innovation of genes are further observed within an exodermis regulatory network and illustrate its function. Comparative translatome analyses of rice, tomato, and Arabidopsis cell populations suggest increased expression conservation of root meristems compared with other homologous populations. In addition, the functions of constitutively expressed genes are more conserved than those of cell type/tissue-enriched genes. These observations suggest that higher order properties of cell type and pan-cell type regulation are evolutionarily conserved between plants and animals.", "keywords": ["root development", "translatomes", "General Biochemistry", "Genetics and Molecular Biology", "Green Fluorescent Proteins", "Meristem", "Arabidopsis", "cell types; evolution; exodermis; gene regulation; rice; root development; tomato; translatomes; xylem", "tomato", "xylem", "Genes", " Plant", "Plant Roots", "Inventions", "Solanum lycopersicum", "Species Specificity", "Gene Expression Regulation", " Plant", "Xylem", "evolution", "Gene Regulatory Networks", "Promoter Regions", " Genetic", "Plant Proteins", "2. Zero hunger", "exodermis", "rice", "15. Life on land", "Protein Biosynthesis", "cell types", "gene regulation", "Transcription Factors"]}, "links": [{"href": "https://www.research.unipd.it/bitstream/11577/3392826/2/PIIS0092867421005043.pdf"}, {"href": "https://doi.org/10.1016/j.cell.2021.04.024"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Cell", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.cell.2021.04.024", "name": "item", "description": "10.1016/j.cell.2021.04.024", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.cell.2021.04.024"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-01T00:00:00Z"}}, {"id": "10.1016/j.pedobi.2017.01.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:35Z", "type": "Journal Article", "created": "2017-01-05", "title": "Earthworm Populations Are Affected From Long-Term Crop Sequences And Bio-Covers Under No-Tillage", "description": "Abstract   Earthworms are crucial for improving soil biophysical properties in cropping systems. Consequently, effects of cropping rotation and bio-covers were assessed on earthworm populations under no-tillage. Main effects of six different cropping [corn ( Zea mays ), cotton ( Gossypium hirsutum ), and soybean ( Glycine max )] rotations ranging from monocultures to greater rotation complexity were implemented in four-year cycles for 12 years at two sites in Tennessee, USA with split-block bio-cover treatments of hairy vetch ( Vicia villosa ), wheat ( Triticum aestivum ), poultry litter, and a fallow control. Earthworms were collected to a 15\u00a0cm depth, hand sorted, and identified spring of 2013 and 2015 as one of three species (i.e.,  Diplocardia caroliniana ,  Lumbricus rubellus , or  Amyntha  spp.). Species richness and relative abundance were significantly affected by bio-covers and cropping sequences for both years at one site, but only by bio-covers at the other location. Under continuous cotton, overall earthworm populations were reduced 55\u201368%, and  D. caroliniana  decreased as much as 88%. Conversely, sequences with soybean and corn had larger populations of  D. caroliniana , which did not differ when in rotations, indicating favorable food sources in their rhizospheres. Poultry litter supported 2.2 times as many  D. caroliniana  and  L. rubellus  across locations and years, compared to cover crops and the control. Consequently, earthworm populations were greatest under nutrient rich bio-covers (poultry litter) and high residue, less pesticide-intensive rotations (soybean and corn), suggesting a more dynamic soil ecology in these systems. Negative effects of cotton might be mitigated by fewer pesticide inputs, increased crop rotations, and poultry litter amendments.", "keywords": ["2. Zero hunger", "Soil Science", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Ecology", " Evolution", " Behavior and Systematics"], "contacts": [{"organization": "Martin J. Shipitalo, Donald D. Tyler, Daniel H. Pote, Fred L. Allen, Amanda J. Ashworth,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.pedobi.2017.01.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Pedobiologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.pedobi.2017.01.001", "name": "item", "description": "10.1016/j.pedobi.2017.01.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.pedobi.2017.01.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2004.03.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:04Z", "type": "Journal Article", "created": "2004-06-12", "title": "Effects Of Chronic Nitrogen Amendment On Dissolved Organic Matter And Inorganic Nitrogen In Soil Solution", "description": "Abstract   Increased atmospheric deposition of N to forests is an issue of global concern, with largely undocumented long-term effects on soil solution chemistry. In contrast to bulk soil properties, which are typically slow to respond to a chronic stress, soil solution chemistry may provide an early indication of the long-term changes in soils associated with a chronic stress. At the Harvard Forest, soil solution was collected beneath the forest floor in zero tension lysimeters for 10 years (1993\u20132002) as part of an N saturation experiment. The experiment was begun in 1988 with 5 or 15\u00a0g\u00a0N\u00a0m\u22122 per year added to hardwood and pine forest plots, and our samples thus characterize the long-term response to N fertilization. Samples were routinely analyzed for inorganic nitrogen, dissolved organic nitrogen (DON), and dissolved organic carbon (DOC); selected samples were also analyzed to determine qualitative changes in the composition of dissolved organic matter. Fluxes of DOC, DON, and inorganic N were calculated based on modeled water loss from the forest floor and observed concentrations in lysimeter samples. The concentration and flux of inorganic N lost from the forest floor in percolating soil solution are strongly affected by N fertilization and have not shown any consistent trends over time. On average, inorganic N fluxes have reached or exceeded the level of fertilizer application in most plots. Concentrations of DOC were unchanged by N fertilization in both the hardwood and pine stands, with long-term seasonal averages ranging from 31\u201357\u00a0mg\u00a0l\u22121 (hardwood) and 36\u201393\u00a0mg\u00a0l\u22121 (pine). Annual fluxes of DOC ranged from 30\u201350\u00a0g\u00a0m\u22122 per year. DON concentrations more than doubled, resulting in a shift toward N-rich organic matter in soil solution percolating from the plots, and DON fluxes of 1\u20133\u00a0g\u00a0m\u22122 per year. The DOC:DON ratio of soil solution under high N application (10\u201320) was about half that of controls. The organic chemistry of soil solution undergoes large qualitative changes in response to N addition. With N saturation, there is proportionally more hydrophilic material in the total DON pool, and a lower C:N ratio in the hydrophobic fraction of the total DOM pool. Overall, our data show that fundamental changes in the chemistry of forest floor solution have occurred in response to N fertilization prior to initiation of our sampling. During the decade of this study (years 5\u201314 of N application) both inorganic N and dissolved organic matter concentrations have changed little despite the significant biotic changes that have accompanied N saturation.", "keywords": ["13. Climate action", "Ecology and Evolutionary Biology", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Scientific Contribution Number 2219", "Forest Sciences", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2004.03.010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2004.03.010", "name": "item", "description": "10.1016/j.foreco.2004.03.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2004.03.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-07-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2010.12.031", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:08Z", "type": "Journal Article", "created": "2011-01-14", "title": "Nitrogen Cycling Following Mountain Pine Beetle Disturbance In Lodgepole Pine Forests Of Greater Yellowstone", "description": "Widespread bark beetle outbreaks are currently affecting multiple conifer forest types throughout western North America, yet many ecosystem-level consequences of this disturbance are poorly understood. We quantified the effect of mountain pine beetle (Dendroctonus ponderosae) outbreak on nitrogen (N) cycling through litter, soil, and vegetation in lodgepole pine (Pinus contorta var. latifolia) forests of the Greater Yellowstone Ecosystem (WY, USA) across a 0\u201330 year chronosequence of time-since-beetle disturbance. Recent (1\u20134 years) bark beetle disturbance increased total litter depth and N concentration in needle litter relative to undisturbed stands, and soils in recently disturbed stands were cooler with greater rates of net N mineralization and nitrification than undisturbed sites. Thirty years after beetle outbreak, needle litter N concentration remained elevated; however total litter N concentration, total litter mass, and soil N pools and fluxes were not different from undisturbed stands. Canopy N pool size declined 58% in recent outbreaks, and remained 48% lower than undisturbed in 30-year old outbreaks. Foliar N concentrations in unattacked lodgepole pine trees and an understory sedge were positively correlated with net N mineralization in soils across the chronosequence. Bark beetle disturbance altered N cycling through the litter, soil, and vegetation of lodgepole pine forests, but changes in soil N cycling were less severe than those observed following stand replacing fire. Several lines of evidence suggest the potential for N leaching is low following bark beetle disturbance in lodgepole pine.", "keywords": ["0106 biological sciences", "Ecology and Evolutionary Biology", "Forest Biology", "15. Life on land", "Entomology", "Forest Management", "Forest Sciences", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2010.12.031"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2010.12.031", "name": "item", "description": "10.1016/j.foreco.2010.12.031", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2010.12.031"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-03-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2015.07.094", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:40Z", "type": "Journal Article", "created": "2015-08-15", "title": "Fighting Carbon Loss Of Degraded Peatlands By Jump-Starting Ecosystem Functioning With Ecological Restoration", "description": "Degradation of ecosystems is a great concern on the maintenance of biodiversity and ecosystem services. Ecological restoration fights degradation aiming at the recovery of ecosystem functions such as carbon (C) sequestration and ecosystem structures like plant communities responsible for the C sequestration function. We selected 38 pristine, drained and restored boreal peatland sites in Finland and asked i) what is the long-term effect of drainage on the peatland surface layer C storage, ii) can restoration recover ecosystem functioning (surface layer growth) and structure (plant community composition) and iii) is the recovery of the original structure needed for the recovery of ecosystem functions? We found that drainage had resulted in a substantial net loss of C from surface layer of drained sites. Restoration was successful in regaining natural growth rate in the peatland surface layer already within 5 years after restoration. However, the regenerated surface layer sequestered C at a mean rate of 116.3 g m(-2) yr(-1) (SE 12.7), when a comparable short-term rate was 178.2 g m(-2) yr(-1) (SE 13.3) at the pristine sites. The plant community compositions of the restored sites were considerably dissimilar to those of pristine sites still 10 years after restoration. We conclude that ecological restoration can be used to jump-start some key peatland ecosystem functions even without the recovery of original ecosystem structure (plant community composition). However, the re-establishment of other functions like C sequestration may require more profound recovery of conditions and ecosystem structure. We discuss the potential economic value of restored peatland ecosystems from the perspective of their C sequestration function.", "keywords": ["0301 basic medicine", "Carbon Sequestration", "Conservation of Natural Resources", "ecosystem structure\u2013function relationship", "Ecology and Evolutionary Biology", "ta1172", "Museo", "plant community composition", "turve", "03 medical and health sciences", "Museum", "ecosystem recovery", "Ekologia ja evoluutiobiologia", "ta116", "Ecosystem", "Environmental Restoration and Remediation", "Finland", "0303 health sciences", "hiilensidonta", "Biodiversity", "15. Life on land", "16. Peace & justice", "carbon sequestration", "Carbon", "13. Climate action", "Wetlands", "peat", "ta1181", "ecosystem degradation"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2015.07.094"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2015.07.094", "name": "item", "description": "10.1016/j.scitotenv.2015.07.094", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2015.07.094"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-01T00:00:00Z"}}, {"id": "10.1046/j.1365-2486.2001.00388.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:49Z", "type": "Journal Article", "created": "2003-03-11", "title": "Chemistry And Decomposition Of Litter From Populus Tremuloides Michaux Grown At Elevated Atmospheric Co2 And Varying N Availability", "description": "Summary<p>It has been hypothesized that greater production of total nonstructural carbohydrates (TNC) in foliage grown under elevated atmospheric carbon dioxide (CO2) will result in higher concentrations of defensive compounds in tree leaf litter, possibly leading to reduced rates of decomposition and nutrient cycling in forest ecosystems of the future. To evaluate the effects of elevated atmospheric CO2on litter chemistry and decomposition, we performed a 111 day laboratory incubation with leaf litter of trembling aspen (Populus tremuloidesMichaux) produced at 36\uffe2\uff80\uff83Pa and 56\uffe2\uff80\uff83Pa CO2and two levels of soil nitrogen (N) availability. Decomposition was quantified as microbially respired CO2and dissolved organic carbon (DOC) in soil solution, and concentrations of nonstructural carbohydrates, N, carbon (C), and condensed tannins were monitored throughout the incubation. Growth under elevated atmospheric CO2did not significantly affect initial litter concentrations of TNC, N, or condensed tannins. Rates of decomposition, measured as both microbially respired CO2and DOC did not differ between litter produced under ambient and elevated CO2. Total C lost from the samples was 38\uffe2\uff80\uff83mg\uffe2\uff80\uff83g\uffe2\uff88\uff921litter as respired CO2and 138\uffe2\uff80\uff83mg\uffe2\uff80\uff83g\uffe2\uff88\uff921litter as DOC, suggesting short\uffe2\uff80\uff90term pulses of dissolved C in soil solution are important components of the terrestrial C cycle. We conclude that litter chemistry and decomposition in trembling aspen are minimally affected by growth under higher concentrations of CO2.</p>", "keywords": ["Ecology and Evolutionary Biology", "carbohydrates", "Quaking aspen", "forest-soil", "litter-plant", "nitrogen", "nitrogen-", "Microlysimeter", "soil-chemistry", "cycling-", "populus-tremuloides", "Geology and Earth Sciences", "Soil Carbon", "Microbiology of soils", "Carbon cycle", "04 agricultural and veterinary sciences", "GLOBAL-ECOLOGY", "chemical-composition", "Organic-matter", "soil-solution", "nutrient-availability", "Tannin", "leaf-litter", "Science", "decomposition-", "Nutrient enrichment", "Carbohydrates", "carbohydrates-", "respiration-", "carbon-dioxide-enrichment", "Nitrogen in soil", "michigan-", "carbon sinks", "C", "Nutrient budget of forests", "Litter", "Populus tremuloides", "Global Change", "tannins-", "Decomposition", "forest-litter", "Foliage", "Carbon dioxide effects on forest litter", "Climatic changes", "15. Life on land", "carbon-nitrogen-ratio", "Forest litter decomposition", "N Ratio", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "microbial-activities", "nitrogen-content"]}, "links": [{"href": "https://doi.org/10.1046/j.1365-2486.2001.00388.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1046/j.1365-2486.2001.00388.x", "name": "item", "description": "10.1046/j.1365-2486.2001.00388.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1365-2486.2001.00388.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-01-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2015.06.022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:55Z", "type": "Journal Article", "created": "2015-07-05", "title": "Precipitation Modifies The Effects Of Warming And Nitrogen Addition On Soil Microbial Communities In Northern Chinese Grasslands", "description": "Terrestrial ecosystems experience simultaneous shifts in multiple drivers of global change, which can interactively affect various resources. The concept that different resources co-limit plant productivity has been well studied. However, co-limitation of soil microbial communities by multiple resources has not been as thoroughly investigated. Specifically, it is not clearly understood how microbial communities respond to shifts in multiple interacting resources such as water, temperature, and nitrogen (N), in the context of global change. To test the effects of these various resources on soil microorganisms, we established a field experiment with temperature and N manipulation in three grasslands of northern China, where there is a decrease in precipitation from east to west across the region. We found that microbial responses to temperature depended upon seasonal water regimes in these temperate steppes. When there was sufficient water present, warming had positive effects on soil microorganisms, suggesting an interaction between water and increases in temperature enhanced local microbial communities. When drought or alternating wet\u2013dry stress occurred, warming had detrimental effects on soil microbial communities. Our results also provide clear evidence for serial co-limitation of microorganisms by water and N at the functional group and community levels, where water is a primary limiting factor and N addition positively affects soil microorganisms only when water is sufficient. We predict that future microbial responses to changes in temperature and N availability could be seasonal or exist only in non-drought years, and will strongly rely on future precipitation regimes.", "keywords": ["2. Zero hunger", "10127 Institute of Evolutionary Biology and Environmental Studies", "13. Climate action", "2404 Microbiology", "570 Life sciences; biology", "590 Animals (Zoology)", "Soil Science", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Microbiology", "1111 Soil Science", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2015.06.022"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2015.06.022", "name": "item", "description": "10.1016/j.soilbio.2015.06.022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2015.06.022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2020.107933", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:16:57Z", "type": "Journal Article", "created": "2020-08-10", "title": "Mycorrhizal association of common European tree species shapes biomass and metabolic activity of bacterial and fungal communities in soil", "description": "Open AccessRecent studies have revealed effects of various tree species on soil physical and chemical properties. However, effects of various tree species on composition and activity of soil microbiota and the relevant controls remain poorly understood. We evaluated the influence of tree species associated with two different mycorrhizal types, ectomycorrhiza (EcM) and arbuscular mycorrhiza (AM), on growth, biomass and metabolic activity of soil fungal and bacterial communities using common garden tree species experiments throughout Denmark. The soil microbial communities differed between six European tree species as well as between EcM (beech, lime, oak and spruce) and AM (ash and maple) tree species. The EcM tree species had higher fungal biomass, fungal growth and bacterial biomass, while AM species showed higher bacterial growth. The results indicated that microbial community composition and functioning differed between groups of tree species with distinct litter qualities that generate soil C/N ratio and soil pH differences. The mycorrhizal association only partly explained litter quality and soil microbial species differences since lime was more similar to AM tree species. In addition, our results indicated that tree species-mediated soil pH and C/N ratio were the most important variables shaping microbial communities with a positive effect on bacterial and a negative effect on fungal growth rates. The results suggest that tree species-mediated microbial community composition and activity may be important drivers of the different vertical soil C distribution previously observed in AM and EcM tree species.", "keywords": ["2. Zero hunger", "FOS: Biological sciences", "Populations and Evolution (q-bio.PE)", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Quantitative Biology - Populations and Evolution"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2020.107933"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2020.107933", "name": "item", "description": "10.1016/j.soilbio.2020.107933", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2020.107933"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-01T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2012.02798.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:50Z", "type": "Journal Article", "created": "2012-07-28", "title": "Increasing Soil Methane Sink Along A 120-Year Afforestation Chronosequence Is Driven By Soil Moisture", "description": "Abstract<p>Upland soils are important sinks for atmospheric methane (CH4), a process essentially driven by methanotrophic bacteria. Soil CH4 uptake often depends on land use, with afforestation generally increasing the soil CH4 sink. However, the mechanisms driving these changes are not well understood to date. We measured soil CH4 and N2O fluxes along an afforestation chronosequence with Norway spruce (Picea abies L.) established on an extensively grazed subalpine pasture. Our experimental design included forest stands with ages ranging from 25 to &gt;120\uffc2\uffa0years and included a factorial cattle urine addition treatment to test for the sensitivity of soil CH4 uptake to N application. Mean CH4 uptake significantly increased with stand age on all sampling dates. In contrast, CH4 oxidation by sieved soils incubated in the laboratory did not show a similar age dependency. Soil CH4 uptake was unrelated to soil N status (but cattle urine additions stimulated N2O emission). Our data indicated that soil CH4 uptake in older forest stands was driven by reduced soil water content, which resulted in a facilitated diffusion of atmospheric CH4 into soils. The lower soil moisture likely resulted from increased interception and/or evapotranspiration in the older forest stands. This mechanism contrasts alternative explanations focusing on nitrogen dynamics or the composition of methanotrophic communities, although these factors also might be at play. Our findings further imply that the current dramatic increase in forested area increases CH4 uptake in alpine regions.</p>", "keywords": ["2300 General Environmental Science", "2. Zero hunger", "10127 Institute of Evolutionary Biology and Environmental Studies", "13. Climate action", "2304 Environmental Chemistry", "570 Life sciences; biology", "590 Animals (Zoology)", "2306 Global and Planetary Change", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "2303 Ecology", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2012.02798.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2486.2012.02798.x", "name": "item", "description": "10.1111/j.1365-2486.2012.02798.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2012.02798.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-09-07T00:00:00Z"}}, {"id": "10.1038/s41559-022-01756-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:40Z", "type": "Journal Article", "created": "2022-05-09", "title": "Phylotype diversity within soil fungal functional groups drives ecosystem stability", "description": "Soil fungi are fundamental to plant productivity, yet their influence on the temporal stability of global terrestrial ecosystems, and their capacity to buffer plant productivity against extreme drought events, remain uncertain. Here we combined three independent global field surveys of soil fungi with a satellite-derived temporal assessment of plant productivity, and report that phylotype richness within particular fungal functional groups drives the stability of terrestrial ecosystems. The richness of fungal decomposers was consistently and positively associated with ecosystem stability worldwide, while the opposite pattern was found for the richness of fungal plant pathogens, particularly in grasslands. We further demonstrated that the richness of soil decomposers was consistently positively linked with higher resistance of plant productivity in response to extreme drought events, while that of fungal plant pathogens showed a general negative relationship with plant productivity resilience/resistance patterns. Together, our work provides evidence supporting the critical role of soil fungal diversity to secure stable plant production over time in global ecosystems, and to buffer against extreme climate events.", "keywords": ["0301 basic medicine", "Evolution", "Resistance", "580 Plants (Botany)", "Soil", "03 medical and health sciences", "10126 Department of Plant and Microbial Biology", "Behavior and Systematics", "Soil fungal", "XXXXXX - Unknown", "10211 Zurich-Basel Plant Science Center", "Phylotype diversity", "Ecosystem", "Soil Microbiology", "Productivity", "2. Zero hunger", "0303 health sciences", "Ecology", "Biodiversity", "Ecolog\u00eda", "Plants", "15. Life on land", "Protect", " restore and promote sustainable use of terrestrial ecosystems", " sustainably manage forests", " combat\u00a0desertification", " and halt and reverse land degradation and halt biodiversity loss", "Droughts", "1105 Ecology", " Evolution", " Behavior and Systematics", "13. Climate action", "Ecosystem stability", "http://metadata.un.org/sdg/15", "2303 Ecology"]}, "links": [{"href": "https://www.nature.com/articles/s41559-022-01756-5.pdf"}, {"href": "https://doi.org/10.1038/s41559-022-01756-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Ecology%20%26amp%3B%20Evolution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41559-022-01756-5", "name": "item", "description": "10.1038/s41559-022-01756-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41559-022-01756-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-05-09T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2007.01313.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:46Z", "type": "Journal Article", "created": "2007-01-19", "title": "Plant Species Richness, Elevated Co2, And Atmospheric Nitrogen Deposition Alter Soil Microbial Community Composition And Function", "description": "Abstract<p>We determined soil microbial community composition and function in a field experiment in which plant communities of increasing species richness were exposed to factorial elevated CO2 and nitrogen (N) deposition treatments. Because elevated CO2 and N deposition increased plant productivity to a greater extent in more diverse plant assemblages, it is plausible that heterotrophic microbial communities would experience greater substrate availability, potentially increasing microbial activity, and accelerating soil carbon (C) and N cycling. We, therefore, hypothesized that the response of microbial communities to elevated CO2 and N deposition is contingent on the species richness of plant communities. Microbial community composition was determined by phospholipid fatty acid analysis, and function was measured using the activity of key extracellular enzymes involved in litter decomposition. Higher plant species richness, as a main effect, fostered greater microbial biomass, cellulolytic and chitinolytic capacity, as well as the abundance of saprophytic and arbuscular mycorrhizal (AM) fungi. Moreover, the effect of plant species richness on microbial communities was significantly modified by elevated CO2 and N deposition. For instance, microbial biomass and fungal abundance increased with greater species richness, but only under combinations of elevated CO2 and ambient N, or ambient CO2 and N deposition. Cellobiohydrolase activity increased with higher plant species richness, and this trend was amplified by elevated CO2. In most cases, the effect of plant species richness remained significant even after accounting for the influence of plant biomass. Taken together, our results demonstrate that plant species richness can directly regulate microbial activity and community composition, and that plant species richness is a significant determinant of microbial response to elevated CO2 and N deposition. The strong positive effect of plant species richness on cellulolytic capacity and microbial biomass indicate that the rates of soil C cycling may decline with decreasing plant species richness.</p>", "keywords": ["Extracellular Enzymes", "Complementary Resource Use", "Science", "Ecology and Evolutionary Biology", "Grassland Ecosystem", "Phospholipid Fatty Acid (PLFA)", "Global Change", "14. Life underwater", "complimentary resource use", "global change", "580", "2. Zero hunger", "Plant Diversity", "microbial biomass", "Geology and Earth Sciences", "grasslands", "Soil Fungi", "extracellular enzymes", "04 agricultural and veterinary sciences", "15. Life on land", "Microbial Biomass", "Soil C Cycling", "plant diversity", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "FACE (Free-air Carbon Dioxide Enrichment)"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2007.01313.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2486.2007.01313.x", "name": "item", "description": "10.1111/j.1365-2486.2007.01313.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2007.01313.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-01-19T00:00:00Z"}}, {"id": "10.1029/2022je007190", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:32Z", "type": "Journal Article", "created": "2022-01-25", "title": "InSight Pressure Data Recalibration, and Its Application to the Study of Long-Term Pressure Changes on Mars", "description": "Abstract<p>Observations of the South Polar Residual Cap suggest a possible erosion of the cap, leading to an increase of the global mass of the atmosphere. We test this assumption by making the first comparison between Viking 1 and InSight surface pressure data, which were recorded 40\uffc2\uffa0years apart. Such a comparison also allows us to determine changes in the dynamics of the seasonal ice caps between these two periods. To do so, we first had to recalibrate the InSight pressure data because of their unexpected sensitivity to the sensor temperature. Then, we had to design a procedure to compare distant pressure measurements. We propose two surface pressure interpolation methods at the local and global scale to do the comparison. The comparison of Viking and InSight seasonal surface pressure variations does not show changes larger than \uffc2\uffb18\uffc2\uffa0Pa in the CO2 cycle. Such conclusions are supported by an analysis of Mars Science Laboratory (MSL) pressure data. Further comparisons with images of the south seasonal cap taken by the Viking 2 orbiter and MARCI camera do not display significant changes in the dynamics of this cap over a 40\uffc2\uffa0year period. Only a possible larger extension of the North Cap after the global storm of MY 34 is observed, but the physical mechanisms behind this anomaly are not well determined. Finally, the first comparison of MSL and InSight pressure data suggests a pressure deficit at Gale crater during southern summer, possibly resulting from a large presence of dust suspended within the crater.</p>", "keywords": ["Atmospheric sciences", "550", "Astronomy", "Atmosphere (unit)", "FOS: Mechanical engineering", "Library science", "Oceanography", "01 natural sciences", "CO<SUB>2</SUB> ice", "pressure", "Mars Exploration Program", "Engineering", "Surface pressure", "Storm", "Martian Climate", "Space Suit Design and Ergonomics for EVA", "Martian Atmosphere", "Earth and Planetary Astrophysics (astro-ph.EP)", "Climatology", "Global and Planetary Change", "Geography", "Martian Surface", "Physics", "Geology", "Impact crater", "Condensed matter physics", "Anomaly (physics)", "World Wide Web", "Algorithm", "Satellite Observations", "Residual", "Physical Sciences", "Exploration and Study of Mars", "Astrophysics - Instrumentation and Methods for Astrophysics", "Research Article", "FOS: Physical sciences", "Mars", "Aerospace Engineering", "Pressure gradient", "Environmental science", "[SDU] Sciences of the Universe [physics]", "atmospheric mass", "Meteorology", "Orbiter", "0103 physical sciences", "Instrumentation and Methods for Astrophysics (astro-ph.IM)", "Formation and Evolution of the Solar System", "0105 earth and related environmental sciences", "Pressure system", "CO 2 ice", "Astronomy and Astrophysics", "FOS: Earth and related environmental sciences", "Astrobiology", "Computer science", "Physics and Astronomy", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Global Methane Emissions and Impacts", "Environmental Science", "cap sublimation", "Water on Mars", "Astrophysics - Earth and Planetary Astrophysics"]}, "links": [{"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2022JE007190"}, {"href": "https://doi.org/10.1029/2022je007190"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Planets", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2022je007190", "name": "item", "description": "10.1029/2022je007190", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2022je007190"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-25T00:00:00Z"}}, {"id": "10.1023/a:1009783625188", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:17:24Z", "type": "Journal Article", "created": "2002-12-22", "description": "Short-term studies of tree growth at elevated CO2 suggest that forest productivity may increase as atmospheric CO2 concentrations rise, although low soil N availability may limit the magnitude of this response. There have been few studies of growth and N2 fixation by symbiotic N 2-fixing woody species under elevated CO 2 and the N inputs these plants could provide to forest ecosystems in the future. We investigated the effect of twice ambient CO 2 on growth, tissue N accretion, and N2 fixation of nodulatedAlnus glutinosa (L.) Gaertn. grown under low soil N conditions for 160 d. Root, nodule, stem, and leaf dry weight (DW) and N accretion increased significantly in response to elevated CO2. Whole-plant biomass and N accretion increased 54% and 40%, respectively. Delta- 15 Na nalysis of leaf tissue indicated that plants from both treatments derived similar proportions of their total N from symbiotic fixation suggesting that elevated CO 2 grown plants fixed approximately 40% more N than did ambient CO 2 grown plants. Leaves from both CO2 treatments showed similar relative declines in leaf N content prior to autumnal leaf abscission, but total N in leaf litter increased 24% in elevated compared to ambient CO2 grown plants. These results suggest that with rising atmospheric CO2 N2-fixing woody species will accumulate greater amounts of biomass N through N2 fixation and may enhance soil N levels by increased litter N inputs.", "keywords": ["Delta 15 N Analysis", "0106 biological sciences", "Nitrogen Fixation", "Science", "Plant Sciences", "Ecology and Evolutionary Biology", "Life Sciences", "Carbon Dioxide Enrichment", "Root Nodules", "Black Alder", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Christoph S. Vogel, Christoph S. Vogel, Richard B. Thomas, Peter S. Curtis, Peter S. Curtis,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1023/a:1009783625188"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1023/a:1009783625188", "name": "item", "description": "10.1023/a:1009783625188", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/a:1009783625188"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1997-05-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Evolution&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Evolution&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Evolution&", "hreflang": "en-US"}, {"rel": "next", "type": "application/geo+json", "title": "items (next)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Evolution&offset=50", "hreflang": "en-US"}], "numberMatched": 166, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-05-26T00:15:27.285371Z"}