{"type": "FeatureCollection", "features": [{"id": "10.1007/s00442-002-1005-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:14:35Z", "type": "Journal Article", "created": "2003-02-13", "title": "Effects Of Elevated Co2 On Foliar Chemistry Of Saplings Of Nine Species Of Tropical Tree", "description": "This study examined the effects of elevated CO2 on secondary metabolites for saplings of tropical trees. In the first experiment, nine species of trees were grown in the ground in open-top chambers in central Panama at ambient and elevated CO2 (about twice ambient). On average, leaf phenolic contents were 48% higher under elevated CO2. Biomass accumulation was not affected by CO2, but starch, total non-structural carbohydrates and C/N ratios all increased. In a second experiment with Ficus, an early successional species, and Virola, a late successional species, treatments were enriched for both CO2 and nutrients. For both species, nutrient fertilization increased plant growth and decreased leaf carbohydrates, C/N ratios and phenolic contents, as predicted by the carbon/nutrient balance hypothesis. Changes in leaf C/N levels were correlated with changes in phenolic contents for Virola (r=0.95, P<0.05), but not for Ficus. Thus, elevated CO2, particularly under conditions of low soil fertility, significantly increased phenolic content as well as the C/N ratio of leaves. The magnitude of the changes is sufficient to negatively affect herbivore growth, survival and fecundity, which should have impacts on plant/herbivore interactions.", "keywords": ["0106 biological sciences", "2. Zero hunger", "elevated CO2", "Ecology", "Panama", "No3 Availability", "Performance", "Insect Herbivore Interactions", "Secondary Metabolism", "phenolic compounds", "15. Life on land", "01 natural sciences", "fertilization", "Atmospheric Co2", "Leaf Quality", "Responses", "tropical trees", "Deciduous Trees", "Phenolic-compounds", "Carbon-nutrient Balance"]}, "links": [{"href": "https://doi.org/10.1007/s00442-002-1005-6"}, {"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/s00442-002-1005-6", "name": "item", "description": "10.1007/s00442-002-1005-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-002-1005-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-09-01T00:00:00Z"}}, {"id": "10.1007/s004420050581", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:14:37Z", "type": "Journal Article", "created": "2002-08-25", "title": "Responses Of Communities Of Tropical Tree Species To Elevated Co2 In A Forest Clearing", "description": "Communities of ten species of tropical forest tree seedlings from three successional classes were grown at ambient and elevated CO2 in large open-top chambers on the edge of a forest in Panam\u00e1. Communities grew from 20\u2009cm to approximately 2\u2009m in height in 6 months. No enhancements in plant biomass accumulation occurred under elevated CO2 either in the whole communities or in growth of individual species. Reductions in leaf area index under elevated CO2 were observed, as were decreases in leaf nitrogen concentrations and increases in the C:N ratio of leaf tissue. Species tended to respond individualistically to elevated CO2, but some generalizations of how successional groupings responded could be made. Early and mid-successional species generally showed greater responses to elevated CO2 than late-successional species, particularly with respect to increases in photosynthetic rates and leaf starch concentrations, and reductions in leaf area ratio. Late-successional species showed greater increases in C:N ratios in response to elevated CO2 than did other species. Our results indicate that there may not be an increase in the growth of regenerating tropical forest under elevated CO2, but that there could be changes in soil nutrient availability because of reductions in leaf tissue quality, particularly in late-successional species.", "keywords": ["Successional status", "0106 biological sciences", "Biomass allocation", "Leaf chemistry", "1060 Biologie", "Elevated CO2", "Tropical forest tree species", "1060 Biology", "15. Life on land", "2303 Ecology", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1007/s004420050581"}, {"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/s004420050581", "name": "item", "description": "10.1007/s004420050581", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s004420050581"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1998-08-10T00:00:00Z"}}, {"id": "10.1007/s10021-008-9219-z", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:14:40Z", "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/s00468-015-1282-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:14:38Z", "type": "Journal Article", "created": "2015-09-18", "title": "Fine Root Turnover Of Japanese White Birch (Betula Platyphylla Var. Japonica) Grown Under Elevated Co2 In Northern Japan", "description": "Elevated CO 2 reduced fine root dynamics (production and turnover) of white birch seedlings, especially grown in volcanic ash soil compared with brown forest soil. Increased atmospheric CO2 usually enhances photosynthetic ability and growth of trees. To understand how increased CO2 affects below-ground part of trees under varied soil condition, we investigated the responses of the fine root (diameter <2\u00a0mm) dynamics of Japanese white birch (Betula platyphylla var. japonica) which was planted in 2010. The three-year-old birch seedlings were grown in four experimental treatments comprising two levels of CO2, i.e., ambient: 380\u2013390 and elevated: 500\u00a0\u03bcmol\u00a0mol\u22121, in combination with two kinds of soil: brown forest (BF) soil and volcanic ash (VA) soil which has few nutrients. The growth and turnover of fine roots were measured for 3\u00a0years (2011\u20132013) using the Mini-rhizotron. In the first observation year, live fine root length (standing crop) in BF soil was not affected by CO2 treatment, but it was reduced by the elevated CO2 from the second observation year. In VA soil, live fine root length was reduced by elevated CO2 for all 3\u00a0years. Fine root turnover tended to decrease under elevated CO2 compared with ambient in both soil types during the first and second observation years. Turnover of fine root production and mortality was also affected by the two factors, elevated CO2 and different soil types. Median longevity of fine root increased under elevated CO2, especially in VA soil at the beginning, and a shorter fine root lifespan appeared after 2\u00a0years of observation (2011\u20132012). These results suggest that elevated CO2 does not consistently stimulate fine root turnover, particularly during the plant seedlings stage, as it may depend on the costs and benefits of constructing and retaining roots. Therefore, despite the other uncontrollable environment factors, carbon sequestration to the root system may be varied by CO2 treatment period, soil type and plant age.", "keywords": ["0106 biological sciences", "Fine root longevity", "8. Economic growth", "0401 agriculture", " forestry", " and fisheries", "Volcanic ash soil", "Elevated CO2", "04 agricultural and veterinary sciences", "Survival analysis", "15. Life on land", "Mini-rhizotron", "650", "01 natural sciences"], "contacts": [{"organization": "Wang, Xiaona, Fujita, Saki, Nakaji, Tatsuro, Watanabe, Makoto, Satoh, Fuyuki, Koike, Takayoshi,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s00468-015-1282-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Trees", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00468-015-1282-4", "name": "item", "description": "10.1007/s00468-015-1282-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00468-015-1282-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-09-18T00:00:00Z"}}, {"id": "10.1016/j.agwat.2021.107168", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:15:59Z", "type": "Journal Article", "created": "2021-09-15", "title": "Alternate partial root-zone N-fertigation increases water use efficiency and N uptake of barley at elevated CO2", "description": "Elevated atmospheric CO2 concentration (e[CO2]) increases water use efficiency (WUE) while reducing nitrogen (N) concentration of crops particularly under drought conditions; yet the combined effects of e[CO2] and different N-fertigation regimes on WUE and crop N nutrition remain largely elusive. In this experiment, the growth and physiological responses of two barley genotypes, wild type barley Steptoe (WT) and its correspondent ABA-deficient mutant barley Az34, to three N-fertigation regimes at ambient CO2 (a[CO2]) (400 ppm) and e [CO2] (800 ppm) were investigated. From tillering to grain filling stage, the plants were subjected to three Nfertigation regimes: 1) N-fertigation at full irrigation volume (FIN); 2) N-fertigation at reduced irrigation volume (DIN); 3) alternate N-fertigation at reduced irrigation volume (PRDN). Although e[CO2] had little effect on gs, Tr and plant water use of WT, especially under DIN and PRDN, it increased An, resulting in an increased WUE at stomatal, leaf and whole plant levels. For Az34, the positive effect of e[CO2] on WUE was attributed to both significantly enhanced An and lowered gs and Tr. For both genotypes, e[CO2] increased 100-grain weight and shoot dry biomass but didn\u2019t affect grain yield and WUE for grain production (WUEg). PRDN increased grain yield, HI and WUEg of both genotypes regardless of [CO2], compared to FIN. DIN and PRDN increased N uptake of both genotypes at e[CO2] compared to FIN. Compared to a[CO2], e[CO2] increased 15N uptake and 15N recovery rate of both genotypes by enhancing plant biomass. In addition, both genotypes grown under DIN and PRDN allocated more N to the grain compared to the FIN plants. Collectively, N-fertigation at reduced irrigation volume promoted N allocation to the grain and increased WUE, particularly under e[CO2]. Such information is conductive for optimizing WUE and N nutrition of crops in a future water-limited and CO2-enriched environment", "keywords": ["N nutrition", "2. Zero hunger", "0106 biological sciences", "N-fertigation", "Water use efficiency", "0401 agriculture", " forestry", " and fisheries", "Elevated CO2", "Growth", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.agwat.2021.107168"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20Water%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agwat.2021.107168", "name": "item", "description": "10.1016/j.agwat.2021.107168", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agwat.2021.107168"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-12-01T00:00:00Z"}}, {"id": "10.1016/j.earscirev.2022.104055", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:16:27Z", "type": "Journal Article", "created": "2022-05-12", "title": "The uncertain role of rising atmospheric CO2 on global plant transpiration", "description": "As CO2 concentration in the atmosphere rises, there is a need for improved physical understanding of its impact on global plant transpiration. This knowledge gap poses a major hurdle in robustly projecting changes in the global hydrologic cycle. For this reason, here we review the different processes by which atmospheric CO2 concentration affects plant transpiration, the several uncertainties related to the complex physiological and radiative processes involved, and the knowledge gaps which need to be filled in order to improve predictions of plant transpiration. Although there is a high degree of certainty that rising CO2 will impact plant transpiration, the exact nature of this impact remains unclear due to complex interactions between CO2 and climate, and key aspects of plant morphology and physiology. The interplay between these factors has substantial consequences not only for future climate and global vegetation, but also for water availability needed for sustaining the productivity of terrestrial ecosystems. Future changes in global plant transpiration in response to enhanced CO2 are expected to be driven by water availability, atmospheric evaporative demand, plant physiological processes, emergent plant disturbances related to increasing temperatures, and the modification of plant physiology and coverage. Considering the universal sensitivity of natural and agricultural systems to terrestrial water availability we argue that reliable future projections of transpiration is an issue of the highest priority, which can only be achieved by integrating monitoring and modeling efforts to improve the representation of CO2 effects on plant transpiration in the next generation of earth system models. \u00a9 2022 The Authors", "keywords": ["0301 basic medicine", "2. Zero hunger", "VAPOR-PRESSURE DEFICIT", "COMMUNITY LAND MODEL", "DECIDUOUS FOREST TREES", "TROPICAL RAIN-FOREST", "EARTH SYSTEM MODELS", "STOMATAL CONDUCTANCE", "Earth system models", "15. Life on land", "01 natural sciences", "6. Clean water", "Transpiration", "03 medical and health sciences", "DYNAMIC VEGETATION MODELS", "13. Climate action", "Earth and Environmental Sciences", "MOJAVE DESERT SHRUBS", "Climate change", "CO2", "ELEVATED CO2", "Atmospheric water demand", "WATER-USE EFFICIENCY", "Projections", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.earscirev.2022.104055"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Earth-Science%20Reviews", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.earscirev.2022.104055", "name": "item", "description": "10.1016/j.earscirev.2022.104055", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.earscirev.2022.104055"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10.1016/j.jafr.2023.100732", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:09Z", "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": "10.1016/j.soilbio.2005.06.023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:36Z", "type": "Journal Article", "created": "2005-07-28", "title": "Effects Of Elevated Co2 Concentration On Rhizodeposition From Lolium Perenne Grown On Soil Exposed To 9 Years Of Co2 Enrichment", "description": "Abstract The effects of enriched CO 2 atmosphere on partitioning of recently assimilated carbon were investigated in a plant-soil-microorganism system in which Lolium perenne seedlings were planted into cores inserted into the resident soil within a sward that had been treated with elevated CO 2 for 9 consecutive years, under two N fertilisation levels (Swiss FACE experiment). The planted cores were excavated from the ambient (35\u00a0Pa pCO 2 ) and enriched (60\u00a0Pa pCO 2 ) rings at two dates, in spring and autumn, during the growing season. The cores were brought back to the laboratory for 14 C labelling of shoots in order to trace the transfer of recently assimilated C both within the plant and to the soil and microbial biomass. At the spring sampling, high N supply stimulated shoot and total dry matter production. Consistently, high N enhanced the allocation of recently fixed C to shoots, and reduced it to belowground compartments. Elevated CO 2 had no consequences for DM or the pattern of C allocation. At the autumn sampling, at high N plot, yield of L. perenne was stimulated by elevated CO 2 . Consistently, 14 C was preferentially allocated aboveground and, consequently belowground recent C allocation was depressed and rhizodeposition reduced. At both experimental periods, total soil C content was similar in all treatments, providing no evidence for soil carbon sequestration in the Swiss Free Air CO 2 Enrichment experiment (FACE) after 9 years of enrichment. Recently assimilated C and soil C were mineralised faster in soils from enriched rings, suggesting a CO 2 -induced shift in the microbial biomass characteristics (structure, diversity, activity) and/or in the quality of the root-released organic compounds.", "keywords": ["580", "RHIZODEPOSITION", "0106 biological sciences", "2. Zero hunger", "RAY GRASS ANGLAIS", "MINERALISATION", "RHIZOSPHERE RESPIRATION", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "01 natural sciences", "MICROBIAL BIOMASSE", "CARBON SEQUESTRATION", "0401 agriculture", " forestry", " and fisheries", "ELEVATED CO2", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "NITROGEN FERTILISATION"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.06.023"}, {"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.2005.06.023", "name": "item", "description": "10.1016/j.soilbio.2005.06.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.06.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.10.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:37Z", "type": "Journal Article", "created": "2005-11-09", "title": "Short And Long-Term Effects Of Elevated Co2 On Lolium Perenne Rhizodeposition And Its Consequences On Soil Organic Matter Turnover And Plant N Yield", "description": "It is still unclear whether elevated CO 2 increases plant root exudation and consequently affects the soil microbial biomass. The effects of elevated CO 2 on the fate of the C and nitrogen (N) contained in old soil organic matter pools is also unclear. In this study the short and long-term effects of elevated CO 2 on C and N pools and fluxes were assessed by growing isolated plants of ryegrass (Lolium perenne) in glasshouses at elevated and ambient atmospheric CO 2 and using soil from the New Zealand FACE site that had >4 years exposure to CO 2 enrichment. Using 14 CO 2 pulse labelling, the effects of elevated CO 2 on C allocation within the plant-soil system were studied. Under elevated CO 2 more root derived C was found in the soil and in the microbial biomass 48 h after labelling. The increased availability of substrate significantly stimulated soil microbial growth and acted as priming effect, enhancing native soil organic matter decomposition regardless of the mineral N supply. Despite indications of faster N cycling in soil under elevated CO 2 , N availability to plants stayed unchanged. Soil previously exposed to elevated CO 2 exhibited a higher N cycling rate but again there was no effect on plant N uptake. With respect to the difficulties of extrapolating glasshouse experiment results to the field, we concluded that the accumulation of coarse organic matter observed in the field under elevated CO 2 was probably not created by an imbalance between C and N but was likely to be due to more complex phenomena involving soil mesofauna and/or other nutrients limitations.", "keywords": ["580", "RHIZODEPOSITION", "2. Zero hunger", "RAY GRASS ANGLAIS", "PRIMING EFFECT", "15N", "RYEGRASS", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "ELEVATED CO2", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.10.002"}, {"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.2005.10.002", "name": "item", "description": "10.1016/j.soilbio.2005.10.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.10.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2008.06.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:39Z", "type": "Journal Article", "created": "2008-07-10", "title": "Changes In Soil Microbial Community Structure Under Elevated Tropospheric O-3 And Co2", "description": "Abstract We studied the effects of O 3 and CO 2 alone and in combination on soil microbial communities by assessing the changes in total PLFA biomass, profiles and specific subgroups. Meadow mesocosms were exposed to slightly elevated O 3 (40\u201350\u00a0ppb) and CO 2 (+100\u00a0ppm) in open-top chambers for three subsequent growing seasons (2002\u20132004). Decreased total, bacterial, actinobacterial, fungal PLFA biomass values as well as fungal:bacterial PLFA biomass ratio were measured after three growing seasons of fumigations with elevated O 3 . There were significant differences in the relative proportions of individual PLFAs between the control and elevated O 3 treatments. Moreover, enhanced O 3 alone and in combination with CO 2 modified the structure of the microbial community. The effects of elevated CO 2 given alone on PLFA profiles were negligible. Our results show that elevated O 3 alone and in combination with CO 2 even at moderate levels may cause changes in the biomass and composition of the microbial community in meadow soils, which may lead to functional changes in soil ecosystem processes.", "keywords": ["hiilidioksidi", "biomassa", "niityt", "soil", "open-top chambers", "ekosysteemit", "kohotettu O3", "otsoni", "microorganisms", "2. Zero hunger", "maaper\u00e4", "elevated CO2", "biomass", "carbon dioxide", "04 agricultural and veterinary sciences", "15. Life on land", "ozone", "kohotettu CO2", "elevated O3", "mikro-organismit", "PLFA", "0401 agriculture", " forestry", " and fisheries", "Ka", "microbial community", "ecosystems", "meadows"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2008.06.007"}, {"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.2008.06.007", "name": "item", "description": "10.1016/j.soilbio.2008.06.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2008.06.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-10-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2016.07.003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:47Z", "type": "Journal Article", "created": "2016-07-08", "title": "Soil extracellular enzyme activities, soil carbon and nitrogen storage under nitrogen fertilization: A meta-analysis", "description": "Abstract Nitrogen (N) fertilization affects the rate of soil organic carbon (SOC) decomposition by regulating extracellular enzyme activities (EEA). Extracellular enzymes have not been represented in global biogeochemical models. Understanding the relationships among EEA and SOC, soil N (TN), and soil microbial biomass carbon (MBC) under N fertilization would enable modeling of the influence of EEA on SOC decomposition. Based on 65 published studies, we synthesized the activities of \u03b1-1,4-glucosidase (AG), \u03b2-1,4-glucosidase (BG), \u03b2- d -cellobiosidase (CBH), \u03b2-1,4-xylosidase (BX), \u03b2-1,4-N-acetyl-glucosaminidase (NAG), leucine amino peptidase (LAP), urease (UREA), acid phosphatase (AP), phenol oxidase (PHO), and peroxidase (PEO) in response to N fertilization. The proxy variables for hydrolytic C acquisition enzymes (C-acq), N acquisition (N-acq), and oxidative decomposition (OX) were calculated as the sum of AG, BG, CBH and BX; AG and LAP; PHO and PEO, respectively. The relationships between response ratios (RRs) of EEA and SOC, TN, or MBC were explored when they were reported simultaneously. Results showed that N fertilization significantly increased CBH, C-acq, AP, BX, BG, AG, and UREA activities by 6.4, 9.1, 10.6, 11.0, 11.2, 12.0, and 18.6%, but decreased PEO, OX and PHO by 6.1, 7.9 and 11.1%, respectively. N fertilization enhanced SOC and TN by 7.6% and 15.3%, respectively, but inhibited MBC by 9.5%. Significant positive correlations were found only between the RRs of C-acq and MBC, suggesting that changes in combined hydrolase activities might act as a proxy for MBC under N fertilization. In contrast with other variables, the RRs of AP, MBC, and TN showed unidirectional trends under different edaphic, environmental, and physiological conditions. Our results provide the first comprehensive set of evidence of how hydrolase and oxidase activities respond to N fertilization in various ecosystems. Future large-scale model projections could incorporate the observed relationship between hydrolases and microbial biomass as a proxy for C acquisition under global N enrichment scenarios in different ecosystems.", "keywords": ["LITTER", "570", "Science & Technology", "MICROBIAL COMMUNITY", "Microbial Biomass Carbon (Mbc)", "Soil Science", "610", "Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "FOREST", "Meta-analysis", "Nitrogen Fertilization", "METHANE OXIDATION", "ECOSYSTEM", "0401 agriculture", " forestry", " and fisheries", "Soil Organic Carbon (Soc)", "ECOENZYMATIC STOICHIOMETRY", "DEPOSITION", "ELEVATED CO2", "Life Sciences & Biomedicine", "Extracellular Enzyme Activities (Eea)", "GLOBAL PERSPECTIVE", "RESPONSES"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2016.07.003"}, {"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.2016.07.003", "name": "item", "description": "10.1016/j.soilbio.2016.07.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2016.07.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-10-01T00:00:00Z"}}, {"id": "10.1023/a:1004233920896", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:19Z", "type": "Journal Article", "description": "The effect of elevated CO2 on the carbon and nitrogen distribution within perennial ryegrass (L. perenne L.) and its influence on belowground processes were investigated. Plants were homogeneously 14C-labelled in two ESPAS growth chambers in a continuous 14C-CO2 atmosphere of 350 and 700 \u03bcL L-1 CO2 and at two soil nitrogen regimes, in order to follow the carbon flow through all plant and soil compartments. After 79 days, elevated CO2 increased the total carbon uptake by 41 and 21% at low (LN) and high nitrogen (HN) fertilisation, respectively. Shoot growth remained unaffected, whereas CO2 enrichment stimulated root growth by 46% and the root/soil respiration by 111%, irrespective of the nitrogen concentration. The total 14C-soil content increased by 101 and 28% at LN and HN, respectively. The decomposition of the native soil organic matter was not affected either by CO2 or by the nitrogen treatment. Elevated CO2 did not change the total nitrogen uptake of the plant either at LN or at HN. Both at LN and HN elevated CO2 significantly increased the total amount of nitrogen taken up by the roots and decreased the absolute and relative amounts translocated to the shoots. The amount of soil nitrogen immobilised by micro-organisms and the size of the soil microbial biomass were not affected by elevated CO2, whereas both were significantly increased at the higher soil N content. Most striking was the 88% increase in net carbon input into the soil expressed as: 14C-roots plus total 14C-soil content minus the 12C-carbon released by decomposition of native soil organic matter. The net carbon input into the soil at ambient CO2 corresponded with 841 and 1662 kg ha-1 at LN and HN, respectively. Elevated CO2 increased these amounts with an extra carbon input of 950 and 1056 kg ha-1. Combined with a reduced decomposition rate of plant material grown at elevated CO2 this will probably lead to carbon storage in grassland soils resulting in a negative feed back on the increasing CO2 concentration of the atmosphere.", "keywords": ["Nitrogen partitioning", "Lolium perenne", "Mineralisation", "Soil carbon dynamics", "Microbial biomass", "Elevated CO2", "Carbon partitioning"], "contacts": [{"organization": "van Ginkel, J.H., Gorissen, A., van Veen, J.A.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1023/a:1004233920896"}, {"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": "10.1023/a:1004233920896", "name": "item", "description": "10.1023/a:1004233920896", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/a:1004233920896"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1997-01-01T00:00:00Z"}}, {"id": "10.1029/2003gb002137", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:28Z", "type": "Journal Article", "created": "2004-01-25", "title": "Soil Microbial Activity And N Availability With Elevated Co2in Mojave Desert Soils", "description": "

We examined the effects of elevated CO2 on soil nitrogen (N) dynamics in the Mojave Desert by measuring plant N isotope composition (\uffce\uffb415N), soil microbial biomass N, soil respiration, resin\uffe2\uff80\uff90available N, and C and N dynamics during soil incubations. With elevated CO2, foliage of Larrea tridentata and Krameria erecta had mean \uffce\uffb415N 2.1 and 1.1\uffe2\uff80\uffb0 higher with elevated CO2, respectively, and elevated CO2 increased microbial biomass N in dry soils under a perennial grass (6.8 \uffc2\uffb1 1.4 versus 3.7 \uffc2\uffb1 0.3 \uffce\uffbcg/g). Elevated CO2 significantly increased cumulative resin\uffe2\uff80\uff90available N in the field by 12%, driven by available soil moisture. Rates of soil respiration with elevated CO2 were sporadically higher under Pleuraphis and Larrea. Soils under shrubs had greater potential net N mineralization (102.6 \uffc2\uffb1 24.2 \uffce\uffbcg/g) than soils under grasses and in plant interspaces (40.0 \uffc2\uffb1 9.69 \uffce\uffbcg/g). Rates of recalcitrant N turnover in soil incubations were related to soil substrate availability. Results indicate that shifts in soil microbial structure and/or activity may occur with elevated CO2 and may result in increases in plant\uffe2\uff80\uff90available N when soil moisture is available.

", "keywords": ["2. Zero hunger", "0106 biological sciences", "elevated CO2", "570", "soil microorganisms", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "630"]}, "links": [{"href": "https://doi.org/10.1029/2003gb002137"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Biogeochemical%20Cycles", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2003gb002137", "name": "item", "description": "10.1029/2003gb002137", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2003gb002137"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-01-24T00:00:00Z"}}, {"id": "10.1038/35040544", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:34Z", "type": "Journal Article", "created": "2002-07-26", "title": "Elevated Co2 Increases Productivity And Invasive Species Success In An Arid Ecosystem", "description": "Arid ecosystems, which occupy about 20% of the earth's terrestrial surface area, have been predicted to be one of the most responsive ecosystem types to elevated atmospheric CO2 and associated global climate change. Here we show, using free-air CO2 enrichment (FACE) technology in an intact Mojave Desert ecosystem, that new shoot production of a dominant perennial shrub is doubled by a 50% increase in atmospheric CO2 concentration in a high rainfall year. However, elevated CO2 does not enhance production in a drought year. We also found that above-ground production and seed rain of an invasive annual grass increases more at elevated CO2 than in several species of native annuals. Consequently, elevated CO2 might enhance the long-term success and dominance of exotic annual grasses in the region. This shift in species composition in favour of exotic annual grasses, driven by global change, has the potential to accelerate the fire cycle, reduce biodiversity and alter ecosystem function in the deserts of western North America.", "keywords": ["0106 biological sciences", "Fire cycle", "Environmental Indicators and Impact Assessment", "Invasive species", "Mojave desert", "Water availability", "Free-air CO2 enrichment (FACE)", "Plant Biology", "04 agricultural and veterinary sciences", "Carbon Dioxide", "Plants", "15. Life on land", "Poaceae", "01 natural sciences", "13. Climate action", "Climate change", "0401 agriculture", " forestry", " and fisheries", "Elevated CO2", "Grasses", "Desert Climate", "Rosales", "Ecosystem", "Nevada"]}, "links": [{"href": "https://doi.org/10.1038/35040544"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/35040544", "name": "item", "description": "10.1038/35040544", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/35040544"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2000-11-01T00:00:00Z"}}, {"id": "10.1038/s41467-019-08348-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:38Z", "type": "Journal Article", "created": "2019-02-14", "title": "Decadal biomass increment in early secondary succession woody ecosystems is increased by CO2 enrichment", "description": "Abstract

Increasing atmospheric CO2 stimulates photosynthesis which can increase net primary production (NPP), but at longer timescales may not necessarily increase plant biomass. Here we analyse the four decade-long CO2-enrichment experiments in woody ecosystems that measured total NPP and biomass. CO2 enrichment increased biomass increment by 1.05\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.26\uffe2\uff80\uff89kg\uffe2\uff80\uff89C\uffe2\uff80\uff89m\uffe2\uff88\uff922 over a full decade, a 29.1\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff8911.7% stimulation of biomass gain in these early-secondary-succession temperate ecosystems. This response is predictable by combining the CO2 response of NPP (0.16\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.03\uffe2\uff80\uff89kg\uffe2\uff80\uff89C\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89y\uffe2\uff88\uff921) and the CO2-independent, linear slope between biomass increment and cumulative NPP (0.55\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff890.17). An ensemble of terrestrial ecosystem models fail to predict both terms correctly. Allocation to wood was a driver of across-site, and across-model, response variability and together with CO2-independence of biomass retention highlights the value of understanding drivers of wood allocation under ambient conditions to\uffc2\uffa0correctly interpret\uffc2\uffa0and predict CO2 responses.

", "keywords": ["[SDE] Environmental Sciences", "0106 biological sciences", "0301 basic medicine", "TREE MORTALITY", "550", "Climate", "Plant Biology", "Biochemistry", "01 natural sciences", "Trees", "atmospheric carbon dioxide", "ddc:550", "Biomass", "Photosynthesis", "Ecology", "Q", "FOREST PRODUCTIVITY", "Forestry", "Biological Sciences", "woody", "decadal biomass", "Wood", "[SDE]Environmental Sciences", "GROWTH", "ecosystems", "CARBON ALLOCATION", "570", "Science", "Biophysics", "333", "SWEETGUM PLANTATION", "Article", "03 medical and health sciences", "XXXXXX - Unknown", "forest ecology", "plant biomass", "Biochemistry", " Biophysics", " and Structural Biology", "Ecosystem", "photosynthesis", "Carbon Dioxide", "15. Life on land", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "NITROGEN", "CLIMATE", "13. Climate action", "and Structural Biology", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "ELEVATED CO2", "SOIL CARBON", "RESPONSES"]}, "links": [{"href": "https://www.nature.com/articles/s41467-019-08348-1.pdf"}, {"href": "https://arrow.tudublin.ie/context/scschbioart/article/1214/viewcontent/nature.pdf"}, {"href": "https://escholarship.org/content/qt5m5806sh/qt5m5806sh.pdf"}, {"href": "https://doi.org/10.1038/s41467-019-08348-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Communications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41467-019-08348-1", "name": "item", "description": "10.1038/s41467-019-08348-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41467-019-08348-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-02-14T00:00:00Z"}}, {"id": "10.1038/s41598-019-55251-2", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:43Z", "type": "Journal Article", "created": "2019-12-16", "title": "Assessing the impact of global climate changes on irrigated wheat yields and water requirements in a semi-arid environment of Morocco", "description": "Abstract

The present work aims to quantify the impact of climate change (CC) on the grain yields of irrigated cereals and their water requirements in the Tensift region of Morocco. The Med-CORDEX (MEDiterranean COordinated Regional Climate Downscaling EXperiment) ensemble runs under scenarios RCP4.5 (Representative Concentration Pathway) and RCP8.5 are first evaluated and disaggregated using the quantile-quantile approach. The impact of CC on the duration of the main wheat phenological stages based on the degree-day approach is then analyzed. The results show that the rise in air temperature causes a shortening of the development cycle of up to 50 days. The impacts of rising temperature and changes in precipitation on wheat yields are next evaluated, based on the AquaCrop model, both with and without taking into account the fertilizing effect of CO2. As expected, optimal wheat yields will decrease on the order of 7 to 30% if CO2 concentration rise is not considered. The fertilizing effect of CO2 can counterbalance yield losses, since optimal yields could increase by 7% and 13% respectively at mid-century for the RCP4.5 and RCP8.5 scenarios. Finally, water requirements are expected to decrease by 13 to 42%, mainly in response to the shortening of the cycle. This decrease is associated with a change in temporal patterns, with the requirement peak coming two months earlier than under current conditions.

", "keywords": ["Water resources", "Atmospheric sciences", "Agricultural Irrigation", "environment/Bioclimatology", "550", "Representative Concentration Pathways", "Adaptation to Climate Change in Agriculture", "Arid", "Rain", "[SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy", "Climate Change and Variability Research", "Plant Science", "Precipitation", "02 engineering and technology", "01 natural sciences", "Agricultural and Biological Sciences", "Downscaling", "Climate change", "Quantile", "Triticum", "Climatology", "2. Zero hunger", "Global and Planetary Change", "Ecology", "Geography", "Temperature", "Life Sciences", "Geology", "Morocco", "Phenology", "[SDV.EE.BIO]Life Sciences [q-bio]/Ecology", "Seeds", "Physical Sciences", "Metallurgy", "Desert Climate", "Impacts of Elevated CO2 and Ozone on Plant Physiology", "Climate Change", "0207 environmental engineering", "Yield (engineering)", "Climate model", "Article", "Environmental science", "FOS: Economics and business", "Meteorology", "FOS: Mathematics", "Econometrics", "[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology", "Biology", "Ecology", " Evolution", " Behavior and Systematics", "0105 earth and related environmental sciences", "[SDV.SA.AGRO] Life Sciences [q-bio]/Agricultural sciences/Agronomy", "Water", "FOS: Earth and related environmental sciences", "Carbon Dioxide", "15. Life on land", "Agronomy", "Materials science", "[SDV.EE.BIO] Life Sciences [q-bio]/Ecology", " environment/Bioclimatology", "13. Climate action", "FOS: Biological sciences", "Environmental Science", "[SDU.STU.HY] Sciences of the Universe [physics]/Earth Sciences/Hydrology", "Crop Yield", "Mediterranean climate", "Mathematics", "Climate Modeling"]}, "links": [{"href": "https://www.nature.com/articles/s41598-019-55251-2.pdf"}, {"href": "https://doi.org/10.1038/s41598-019-55251-2"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41598-019-55251-2", "name": "item", "description": "10.1038/s41598-019-55251-2", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41598-019-55251-2"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-12-16T00:00:00Z"}}, {"id": "10.1046/j.1365-2486.1997.d01-133.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:51Z", "type": "Journal Article", "created": "2003-11-02", "title": "Elevated Atmospheric Co2 Affects Decomposition Of Festuca Vivipara (L) Sm Litter And Roots In Experiments Simulating Environmental Change In Two Contrasting Arctic Ecosystems", "description": "

Mass loss, together with nitrogen and carbon loss, from above\uffe2\uff80\uff90ground material and roots of Festuca vivipara were followed for 13 months in a high Arctic polar semi\uffe2\uff80\uff90desert and a low Arctic tree\uffe2\uff80\uff90line dwarf shrub heath. Festuca vivipara for the study was obtained from plants cultivated at two different CO2 concentrations (350 and 500 \uffce\uffbcL L\uffe2\uff80\uff931) in controlled environment chambers in the UK. Each of the four resource types (shoots or roots from plants grown in elevated or ambient CO2 concentrations) was subsequently placed in an experiment simulating aspects of environmental change in each Arctic ecosystem. Air, litter and soil temperatures were increased using open\uffe2\uff80\uff90topped polythene tents at both sites, and a 58% increase in summer precipitation was simulated at the high Arctic site.

Mass loss was greatest at the low Arctic site, and from the shoot material, rather than the roots. Shoots grown under an elevated CO2 concentration decomposed more slowly at the high Arctic site, and more quickly at the low Arctic one, than shoots grown at ambient CO2. After 13 months, greater amounts of C and N remained in above\uffe2\uff80\uff90ground litter from plants grown under elevated, rather than ambient, CO2 at the polar semi\uffe2\uff80\uff90desert site, although lower amounts of C remained in elevated CO2 litter at the low Arctic ecosystem. In the high Arctic, roots grown in the 500 \uffce\uffbcL L\uffe2\uff80\uff931 CO2 concentration decomposed significantly more slowly than below\uffe2\uff80\uff90ground material derived from the ambient CO2 chambers. Elevated CO2 concentrations significantly increased the inital C:N ratio, % soluble carbohydrates and \uffce\uffb1\uffe2\uff80\uff90cellulose content, and significantly decreased the inital N content, of the above\uffe2\uff80\uff90ground material compared to that derived from the ambient treatment. Initially, the C:N ratio and percentage N were similar in both sets of roots derived from the two different CO2 treatments, but soluble carbohydrate and \uffce\uffb1\uffe2\uff80\uff90cellulose concentrations were higher, and percentage lignin lower, in the elevated CO2 treatments.The tent treatments significantly retarded shoot decomposition in both ecosystems, probably because of lower litter bag moisture contents, although the additional precipitation treatment had no effect on mass loss from the above\uffe2\uff80\uff90ground material. The results suggest that neither additional summer precipitation (up to 58%), nor soil temperature increase of 1 \uffc2\uffb0C, which may occur by the end of the next century as an effect of a predicted 4 \uffc2\uffb0C rise in air temperature, had an appreciable effect on root decomposition in the short term in a high Arctic soil. However, at the low Arctic site, greater root decomposition, and a lower pool of root N remaining, were observed where soil temperature was increased by 2 \uffc2\uffb0C in response to a 4 \uffc2\uffb0C rise in air temperature. These results suggest that decomposition below\uffe2\uff80\uff90ground in this ecosystem would increase as an effect of predicted climate change. These data also show that there is a difference in the initial results of decomposition processes between the two Arctic ecosystems in response to simulated environmental change.

", "keywords": ["0106 biological sciences", "Decomposition", "Litter quality", "Nitrogen", "Grass", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Carbon", "Arctic", "13. Climate action", "Soil temperature", "0401 agriculture", " forestry", " and fisheries", "Elevated CO2", "Soil moisture"]}, "links": [{"href": "https://doi.org/10.1046/j.1365-2486.1997.d01-133.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.1365-2486.1997.d01-133.x", "name": "item", "description": "10.1046/j.1365-2486.1997.d01-133.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1365-2486.1997.d01-133.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1997-02-01T00:00:00Z"}}, {"id": "10.1046/j.1365-2486.1999.00211.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:52Z", "type": "Journal Article", "created": "2003-03-11", "title": "Elevated Co2 And Temperature Impacts On Different Components Of Soil Co2 Efflux In Douglas-Fir Terracosms", "description": "Abstract

Although numerous studies indicate that increasing atmospheric CO2 or temperature stimulate soil CO2 efflux, few data are available on the responses of three major components of soil respiration [i.e. rhizosphere respiration (root and root exudates), litter decomposition, and oxidation of soil organic matter] to different CO2 and temperature conditions. In this study, we applied a dual stable isotope approach to investigate the impact of elevated CO2 and elevated temperature on these components of soil CO2 efflux in Douglas\uffe2\uff80\uff90fir terracosms. We measured both soil CO2 efflux rates and the 13C and 18O isotopic compositions of soil CO2 efflux in 12 sun\uffe2\uff80\uff90lit and environmentally controlled terracosms with 4\uffe2\uff80\uff90year\uffe2\uff80\uff90old Douglas fir seedlings and reconstructed forest soils under two CO2 concentrations (ambient and 200 ppmv above ambient) and two air temperature regimes (ambient and 4 \uffc2\uffb0C above ambient). The stable isotope data were used to estimate the relative contributions of different components to the overall soil CO2 efflux. In most cases, litter decomposition was the dominant component of soil CO2 efflux in this system, followed by rhizosphere respiration and soil organic matter oxidation. Both elevated atmospheric CO2 concentration and elevated temperature stimulated rhizosphere respiration and litter decomposition. The oxidation of soil organic matter was stimulated only by increasing temperature. Release of newly fixed carbon as root respiration was the most responsive to elevated CO2, while soil organic matter decomposition was most responsive to increasing temperature. Although some assumptions associated with this new method need to be further validated, application of this dual\uffe2\uff80\uff90isotope approach can provide new insights into the responses of soil carbon dynamics in forest ecosystems to future climate changes.

", "keywords": ["elevated CO2", "13. Climate action", "stable isotopes", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "forest ecosystem", "15. Life on land", "global warming", "soil respiration"], "contacts": [{"organization": "Guanghui Lin, Guanghui Lin, Mark Johnson, David T. Tingey, James R. Ehleringer, Paul T. Rygiewicz,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1046/j.1365-2486.1999.00211.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.1365-2486.1999.00211.x", "name": "item", "description": "10.1046/j.1365-2486.1999.00211.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1365-2486.1999.00211.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1999-02-01T00:00:00Z"}}, {"id": "10.1046/j.1469-8137.1997.00682.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:55Z", "type": "Journal Article", "created": "2003-03-12", "title": "Effects Of Elevated Atmospheric Co2 And Soil Water Availability On Root Biomass, Root Length, And N, P And K Uptake By Wheat", "description": "summary

We investigated interactions between the effects of elevated atmospheric carbon dioxide concentrations ([CO2]) and soil water availability on root biomass, root length and nutrient uptake by spring wheat (Triticum aestivumcv. Tonic). We grew plants at 350 and 700 \uffce\uffbcmol mol\uffe2\uff88\uff921CO2and with frequent and infrequent watering (\uffe2\uff80\uff98wet\uffe2\uff80\uff99 and \uffe2\uff80\uff98dry\uffe2\uff80\uff99 treatments, respectively). Water use per plant was 1.25 times greater at 350 than at 700 \uffce\uffbcmol CO2mol\uffe2\uff88\uff921, and 1.4 times greater in the \uffe2\uff80\uff98wet\uffe2\uff80\uff99 than in the \uffe2\uff80\uff98dry\uffe2\uff80\uff99 treatment. Root biomass increased with [CO2] and with watering frequency. Elevated [CO2] changed the vertical distribution of the roots, with a greater stimulation of root growth in the top layers of the soil. These data were confirmed by the video data of root lengths in the \uffe2\uff80\uff98dry\uffe2\uff80\uff99 treatment, which showed a delayed root development at depth under elevated [CO2]. The apparent amount of N mineralized appeared to be equal for all treatments. Nutrient uptake was affected by [CO2] and by watering frequency, and there were interactions between these treatments. These interactions were different for N, K and P, which appeared to be related to differences in nutrient availability and mobility in the soil. Moreover, these interactions changed with time as the root system became larger with [CO2] and with watering frequency, and as fluctuations in soil moisture contents increased. Elevated [CO2] affected nutrient uptake in contrasting ways. Potassium uptake appeared to be reduced by the smaller mass flow of water reaching the root surface. However, this might be countered with time by the greater root biomass at elevated [CO2], by the greater soil moisture contents at elevated [CO2], enabling faster diffusion, or both. Phosphorus uptake appeared to be increased by the greater root biomass at elevated [COJ. We conclude that plant nutrient uptake at elevated [CO2] is affected by interactions with water availability, though differences between nutrients preclude generalizations of the response.

", "keywords": ["2. Zero hunger", "0106 biological sciences", "0401 agriculture", " forestry", " and fisheries", "Elevated CO2", "Soil moisture", "04 agricultural and veterinary sciences", "15. Life on land", "Roots", "01 natural sciences", "6. Clean water", "Triticum aestivum cv. Tonic (spring wheat)"]}, "links": [{"href": "https://doi.org/10.1046/j.1469-8137.1997.00682.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1046/j.1469-8137.1997.00682.x", "name": "item", "description": "10.1046/j.1469-8137.1997.00682.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1469-8137.1997.00682.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1997-03-01T00:00:00Z"}}, {"id": "10.1111/gcb.14604", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:56Z", "type": "Journal Article", "created": "2019-02-27", "title": "Effects of mesophyll conductance on vegetation responses to elevated CO 2 concentrations in a land surface model", "description": "Abstract

Mesophyll conductance (gm) is known to affect plant photosynthesis. However,gmis rarely explicitly considered in land surface models (LSMs), with the consequence that its role in ecosystem and large\uffe2\uff80\uff90scale carbon and water fluxes is poorly understood. In particular, the different magnitudes ofgmacross plant functional types (PFTs) are expected to cause spatially divergent vegetation responses to elevated CO2concentrations. Here, an extensive literature compilation ofgmacross major vegetation types is used to parameterize an empirical model ofgmin the LSM JSBACH and to adjust photosynthetic parameters based on simulatedAn\uffc2\uffa0\uffe2\uff88\uff92\uffc2\uffa0Cicurves. We demonstrate that an explicit representation ofgmchanges the response of photosynthesis to environmental factors, which cannot be entirely compensated by adjusting photosynthetic parameters. These altered responses lead to changes in the photosynthetic sensitivity to atmospheric CO2concentrations which depend both on the magnitude ofgmand the climatic conditions, particularly temperature. We then conducted simulations under ambient and elevated (ambient\uffc2\uffa0+\uffc2\uffa0200\uffc2\uffa0\uffce\uffbcmol/mol) CO2concentrations for contrasting ecosystems and for historical and anticipated future climate conditions (representative concentration pathways; RCPs) globally. Thegm\uffe2\uff80\uff90explicit simulations using the RCP8.5 scenario resulted in significantly higher increases in gross primary productivity (GPP) in high latitudes (+10% to + 25%), intermediate increases in temperate regions (+5% to + 15%), and slightly lower to moderately higher responses in tropical regions (\uffe2\uff88\uff922% to +5%), which summed up to moderate GPP increases globally. Similar patterns were found for transpiration, but with a lower magnitude. Our results suggest that the effect of an explicit representation ofgmis most important for simulated carbon and water fluxes in the boreal zone, where a cold climate coincides with evergreen vegetation.

", "keywords": ["0106 biological sciences", "0301 basic medicine", "550", "Climate", "mesophyll conductance", "photosynthetic CO sensitivity", "01 natural sciences", "land surface modeling", "Carbon Cycle", "03 medical and health sciences", "photosynthetic CO2 sensitivity", "XXXXXX - Unknown", "representative concentration pathways", "Photosynthesis", "Ecosystem", "580", "photosynthesis", "plants", "Temperature", "elevated CO concentrations", "carbon dioxide", "Carbon Dioxide", "Models", " Theoretical", "Plants", "15. Life on land", "Primary Research Articles", "13. Climate action", "elevated CO2 concentrations"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14604"}, {"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/195677/5/01_Knauer_Effects_of_mesophyll_2019.pdf.jpg"}, {"href": "https://doi.org/10.1111/gcb.14604"}, {"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/gcb.14604", "name": "item", "description": "10.1111/gcb.14604", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.14604"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-03-23T00:00:00Z"}}, {"id": "10.1088/1748-9326/aaeae7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:27Z", "type": "Journal Article", "created": "2018-10-24", "title": "Using research networks to create the comprehensive datasets needed to assess nutrient availability as a key determinant of terrestrial carbon cycling", "description": "Open AccessA wide range of research shows that nutrient availability strongly influences terrestrial carbon (C) cycling and shapes ecosystem responses to environmental changes and hence terrestrial feedbacks to climate. Nonetheless, our understanding of nutrient controls remains far from complete and poorly quantified, at least partly due to a lack of informative, comparable, and accessible datasets at regional-to-global scales. A growing research infrastructure of multi-site networks are providing valuable data on C fluxes and stocks and are monitoring their responses to global environmental change and measuring responses to experimental treatments. These networks thus provide an opportunity for improving our understanding of C-nutrient cycle interactions and our ability to model them. However, coherent information on how nutrient cycling interacts with observed C cycle patterns is still generally lacking. Here, we argue that complementing available C-cycle measurements from monitoring and experimental sites with data characterizing nutrient availability will greatly enhance their power and will improve our capacity to forecast future trajectories of terrestrial C cycling and climate. Therefore, we propose a set of complementary measurements that are relatively easy to conduct routinely at any site or experiment and that, in combination with C cycle observations, can provide a robust characterization of the effects of nutrient availability across sites. In addition, we discuss the power of different observable variables for informing the formulation of models and constraining their predictions. Most widely available measurements of nutrient availability often do not align well with current modelling needs. This highlights the importance to foster the interaction between the empirical and modelling communities for setting future research priorities.", "keywords": ["Global vegetation models", "550", "manipulation experiments", "Terrestrial-Aquatic Linkages", "Kolefni", "01 natural sciences", "Nutrient cycle", "Agricultural and Biological Sciences", "Terrestrial ecosystem", "SDG 13 - Climate Action", "Climate change", "Jar\u00f0vegur", "Environmental resource management", "Global change", "General Environmental Science", "SDG 15 - Life on Land", "Carbon-nutrient cycle interactions", "2. Zero hunger", "Data syntheses", "Global and Planetary Change", "Ecology", "Geography", "Physics", "Life Sciences", "Application of Stable Isotopes in Trophic Ecology", "Cycling", "Carbon cycle", "04 agricultural and veterinary sciences", "Chemistry", "ORGANIC-MATTER", "Archaeology", "Physical Sciences", "Nutrient availability", "NET PRIMARY PRODUCTIVITY", "Ecosystem Functioning", "570", "LAND", "TROPICAL RAIN-FOREST", "carbon-nutrient cycle interactions", "data syntheses", "Soil Science", "Environmental science", "[SDU] Sciences of the Universe [physics]", "SOIL-PHOSPHORUS AVAILABILITY", "global vegetation models", "SDG 3 - Good Health and Well-being", "nutrients", "USE EFFICIENCY", "SDG 7 - Affordable and Clean Energy", "GLOBAL CHANGE", "Key (lock)", "Biology", "Ecosystem", "Manipulation experiments", "0105 earth and related environmental sciences", "Renewable Energy", " Sustainability and the Environment", "Ecosystem Structure", "Public Health", " Environmental and Occupational Health", "Nutrients", "15. Life on land", "Computer science", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "ECOSYSTEM RESPONSES", "FOS: Biological sciences", "Global Methane Emissions and Impacts", "Environmental Science", "0401 agriculture", " forestry", " and fisheries", "NITROGEN-FIXATION", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Nutrient Limitation", "ELEVATED CO2", "Nutrient"]}, "links": [{"href": "https://doi.org/10.1088/1748-9326/aaeae7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1748-9326/aaeae7", "name": "item", "description": "10.1088/1748-9326/aaeae7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1748-9326/aaeae7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-07T00:00:00Z"}}, {"id": "10.1111/gcb.13263", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:55Z", "type": "Journal Article", "created": "2016-03-01", "title": "Elevated Atmospheric [Co2] Can Dramatically Increase Wheat Yields In Semi-Arid Environments And Buffer Against Heat Waves", "description": "Abstract

Wheat production will be impacted by increasing concentration of atmospheric CO2 [CO2], which is expected to rise from about 400\uffc2\uffa0\uffce\uffbcmol\uffc2\uffa0mol\uffe2\uff88\uff921 in 2015 to 550\uffc2\uffa0\uffce\uffbcmol\uffc2\uffa0mol\uffe2\uff88\uff921 by 2050. Changes to plant physiology and crop responses from elevated [CO2] (e[CO2]) are well documented for some environments, but field\uffe2\uff80\uff90level responses in dryland Mediterranean environments with terminal drought and heat waves are scarce. The Australian Grains Free Air CO2 Enrichment facility was established to compare wheat (Triticum aestivum) growth and yield under ambient (~370\uffc2\uffa0\uffce\uffbcmol\uffe2\uff88\uff921 in 2007) and e[CO2] (550\uffc2\uffa0\uffce\uffbcmol\uffe2\uff88\uff921) in semi\uffe2\uff80\uff90arid environments. Experiments were undertaken at two dryland sites (Horsham and Walpeup) across three years with two cultivars, two sowing times and two irrigation treatments. Mean yield stimulation due to e[CO2] was 24% at Horsham and 53% at Walpeup, with some treatment responses greater than 70%, depending on environment. Under supplemental irrigation, e[CO2] stimulated yields at Horsham by 37% compared to 13% under rainfed conditions, showing that water limited growth and yield response to e[CO2]. Heat wave effects were ameliorated under e[CO2] as shown by reductions of 31% and 54% in screenings and 10% and 12% larger kernels (Horsham and Walpeup). Greatest yield stimulations occurred in the e[CO2] late sowing and heat stressed treatments, when supplied with more water. There were no clear differences in cultivar response due to e[CO2]. Multiple regression showed that yield response to e[CO2] depended on temperatures and water availability before and after anthesis. Thus, timing of temperature and water and the crop's ability to translocate carbohydrates to the grain postanthesis were all important in determining the e[CO2] response. The large responses to e[CO2] under dryland conditions have not been previously reported and underscore the need for field level research to provide mechanistic understanding for adapting crops to a changing climate.

", "keywords": ["heat wave", "Yield", "Agricultural Irrigation", "Hot Temperature", "Victoria", "Rain", "070302 Agronomy", "dryland", "551", "Dryland", "Heat wave", "Biomass", "Triticum", "free air CO2 enrichment", "2. Zero hunger", "elevated CO2", "Atmosphere", "Australian grains free air CO2 enrichment", "Water", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "wheat; yield", "6. Clean water", "Droughts", ": Australian grains free air CO2 enrichment", "13. Climate action", "Free air CO2 enrichment", "Wheat", "0401 agriculture", " forestry", " and fisheries", "Elevated CO2", "Edible Grain", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1111/gcb.13263"}, {"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/gcb.13263", "name": "item", "description": "10.1111/gcb.13263", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.13263"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-03-31T00:00:00Z"}}, {"id": "10.1111/j.1365-2435.2006.01146.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:03Z", "type": "Journal Article", "created": "2006-06-29", "title": "Several Components Of Global Change Alter Nitrifying And Denitrifying Activities In An Annual Grassland", "description": "Summary

The effects of global change on below\uffe2\uff80\uff90ground processes of the nitrogen (N) cycle have repercussions for plant communities, productivity and trace gas effluxes. However, the interacting effects of different components of global change on nitrification or denitrification have rarely been studied in situ.

We measured responses of nitrifying enzyme activity (NEA) and denitrifying enzyme activity (DEA) to over 4\uffc2\uffa0years of exposure to several components of global change and their interaction (increased atmospheric CO2 concentration, temperature, precipitation and N addition) at peak biomass period in an annual grassland ecosystem. In order to provide insight into the mechanisms controlling the response of NEA and DEA to global change, we examined the relationships between these activities and soil moisture, microbial biomass C and N, and soil extractable N.

Across all treatment combinations, NEA was decreased by elevated CO2 and increased by N addition. While elevated CO2 had no effect on NEA when not combined with other treatments, it suppressed the positive effect of N addition on NEA in all the treatments that included N addition. We found a significant CO2\uffe2\uff80\uff93N interaction for DEA, with a positive effect of elevated CO2 on DEA only in the treatments that included N addition, suggesting that N limitation of denitrifiers may have occurred in our system. Soil water content, extractable N concentrations and their interaction explained 74% of the variation in DEA.

Our results show that the potentially large and interacting effects of different components of global change should be considered in predicting below\uffe2\uff80\uff90ground N responses of Mediterranean grasslands to future climate changes.

", "keywords": ["ERODIUM BOTRYS", "2. Zero hunger", "N ADDITION", "[SDV.BID]Life Sciences [q-bio]/Biodiversity", "DENITRIFICATION", "04 agricultural and veterinary sciences", "910", "15. Life on land", "NITRIFICATION", "6. Clean water", "BROMUS HORDEACEUS", "GERANIUM DISSECTUM", "GERANIUM", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "13. Climate action", "[SDV.EE]Life Sciences [q-bio]/Ecology", "PRECIPITATION", "WARMING", "0401 agriculture", " forestry", " and fisheries", "AVENA BARBATA", "ELEVATED CO2", "environment", "TENEUR EN EAU DU SOL", "[SDV.BID] Life Sciences [q-bio]/Biodiversity"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2435.2006.01146.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Functional%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2435.2006.01146.x", "name": "item", "description": "10.1111/j.1365-2435.2006.01146.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2435.2006.01146.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-06-29T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2006.01118.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:05Z", "type": "Journal Article", "created": "2006-04-23", "title": "Woody Biomass Production During The Second Rotation Of A Bio-Energy Populus Plantation Increases In A Future High Co2 World", "description": "Abstract

The quickly rising atmospheric carbon dioxide (CO2)\uffe2\uff80\uff90levels, justify the need to explore all carbon (C) sequestration possibilities that might mitigate the current CO2increase. Here, we report the likely impact of future increases in atmospheric CO2on woody biomass production of three poplar species (Populus albaL. clone 2AS\uffe2\uff80\uff9011,Populus nigraL. clone Jean Pourtet andPopulus\uffc3\uff97euramericanaclone I\uffe2\uff80\uff90214). Trees were growing in a high\uffe2\uff80\uff90density coppice plantation during the second rotation (i.e., regrowth after coppice; 2002\uffe2\uff80\uff932004; POPFACE/EUROFACE). Six plots were studied, half of which were continuously fumigated with CO2(FACE; free air carbon dioxide enrichment of 550\uffe2\uff80\uff83ppm). Half of each plot was fertilized to study the interaction between CO2and nutrient fertilization. At the end of the second rotation, selective above\uffe2\uff80\uff90 and belowground harvests were performed to estimate the productivity of this bio\uffe2\uff80\uff90energy plantation. Fertilization did not affect growth of the poplar trees, which was likely because of the high rates of fertilization during the previous agricultural land use. In contrast, elevated CO2enhanced biomass production by up to 29%, and this stimulation did not differ between above\uffe2\uff80\uff90 and belowground parts. The increased initial stump size resulting from elevated CO2during the first rotation (1999\uffe2\uff80\uff932001) could not solely explain the observed final biomass increase. The larger leaf area index after canopy closure and the absence of any major photosynthetic acclimation after 6 years of fumigation caused the sustained CO2\uffe2\uff80\uff90induced biomass increase after coppice. These results suggest that, under future CO2concentrations, managed poplar coppice systems may exhibit higher potential for C sequestration and, thus, help mitigate climate change when used as a source of C\uffe2\uff80\uff90neutral energy.

", "keywords": ["2. Zero hunger", "580", "0106 biological sciences", "570", "atmospheric co2", "elevated co2", "n-fertilization", "Global and Planetary Change", "Ecology", "growth", "enrichment face", "hybrid poplar", "04 agricultural and veterinary sciences", "15. Life on land", "7. Clean energy", "01 natural sciences", "pinus-taeda", "poplar plantation", "Bio-energy; Biomass distribution; EUROFACE; FACE; Fertilization; Leaf area index; Photosynthesis; Populus; Short rotation coppice; Woody biomass", "13. Climate action", "no3 availability", "Environmental Chemistry", "0401 agriculture", " forestry", " and fisheries", "water-stress", "General Environmental Science"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2006.01118.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.1365-2486.2006.01118.x", "name": "item", "description": "10.1111/j.1365-2486.2006.01118.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2006.01118.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-04-13T00:00:00Z"}}, {"id": "10.1111/j.1365-3040.2011.02465.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:11Z", "type": "Journal Article", "created": "2011-11-17", "title": "Light Inhibition Of Leaf Respiration In Field-Grown Eucalyptus Saligna In Whole-Tree Chambers Under Elevated Atmospheric Co2 And Summer Drought", "description": "SUMMARY

We investigated whether the degree of light inhibition of leaf respiration (R) differs among large Eucalyptus saligna grown in whole\uffe2\uff80\uff90tree chambers and exposed to present and future atmospheric [CO2] and summer drought. Associated with month\uffe2\uff80\uff90to\uffe2\uff80\uff90month changes in temperature were concomitant changes in R in the light (Rlight) and darkness (Rdark), with both processes being more temperature dependent in well\uffe2\uff80\uff90watered trees than under drought. Overall rates of Rlight and Rdark were not significantly affected by [CO2]. By contrast, overall rates of Rdark (averaged across both [CO2]) were ca. 25% lower under drought than in well\uffe2\uff80\uff90watered trees. During summer, the degree of light inhibition of leaf R was greater in droughted (ca. 80% inhibition) than well\uffe2\uff80\uff90watered trees (ca. 50% inhibition). Notwithstanding these treatment differences, an overall positive relationship was observed between Rlight and Rdark when data from all months/treatments were combined (R2\uffe2\uff80\uff83=\uffe2\uff80\uff830.8). Variations in Rlight were also positively correlated with rates of Rubisco activity and nitrogen concentration. Light inhibition resulted in a marked decrease in the proportion of light\uffe2\uff80\uff90saturated photosynthesis respired (i.e. reduced R/Asat). Collectively, these results highlight the need to account for light inhibition when assessing impacts of global change drivers on the carbon economy of tree canopies.

", "keywords": ["0301 basic medicine", "0106 biological sciences", "Light", "01 natural sciences", "nitrogen", "ribulosebisphosphate carboxylase", "Trees", "Keywords: carbon", "leaf respiration", "Photosynthesis", "Eucalyptus", "concentration (composition)", "droughts", "drought stress", "Photorespiration", "Temperature", "Rlight", "Darkness", "Photochemical Processes", "6. Clean water", "inhibition", "Droughts", "assessment method", "Elevated CO2", "Seasons", "photorespiration", "Nitrogen", "light effect", "Ribulose-Bisphosphate Carboxylase", "water", "Cell Respiration", "evergreen tree", "03 medical and health sciences", "Stress", " Physiological", "XXXXXX - Unknown", "temp Carbon balance", "global change", "580", "photosynthesis", "Drought", "Australia", "carbon dioxide", "temperature", "Water", "Plant Transpiration", "15. Life on land", "Carbon Dioxide", "Carbon", "Plant Leaves", "13. Climate action", "Plant Stomata", "Leaf respiration", "respiration"]}, "links": [{"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/51083/5/Light_inhibition_of_leaf_respiration_in_field-grown.pdf.jpg"}, {"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/51083/7/01_Crous_Light_inhibition_of_leaf_2012.pdf.jpg"}, {"href": "https://doi.org/10.1111/j.1365-3040.2011.02465.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%2C%20Cell%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-3040.2011.02465.x", "name": "item", "description": "10.1111/j.1365-3040.2011.02465.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-3040.2011.02465.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-12-14T00:00:00Z"}}, {"id": "10.1111/j.1654-1103.2012.01452.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:19Z", "type": "Journal Article", "created": "2012-07-23", "title": "Four Years Of Simulated Climate Change Reduces Above-Ground Productivity And Alters Functional Diversity In A Grassland Ecosystem", "description": "AbstractQuestions

How does above\uffe2\uff80\uff90ground grassland biomass production respond to change in multiple climate drivers over a 4\uffe2\uff80\uff90yr period? Can climate\uffe2\uff80\uff90induced patterns of biomass response be explained by shifts in plant community structure? Does sustained climate change affect the relationships between abundance of functional groups, community\uffe2\uff80\uff90scale leaf traits and above\uffe2\uff80\uff90ground production?

Location

Perennial grassland in the French Massif Central.

Methods

Monoliths extracted from the study grassland were exposed to a simulated climate change corresponding to the air temperature, atmospheric CO 2 and summer rainfall conditions projected for 2080. We examined impacts of climate treatments on above\uffe2\uff80\uff90ground biomass and community structure for 4\uffc2\uffa0yr, and investigated the relationship between biomass production, species diversity and three key functional traits: specific leaf area, leaf dry matter content and leaf N content.

Results

Both warming and simultaneous application of warming, summer drought and elevated CO 2 were associated with an increase in annual above\uffe2\uff80\uff90ground biomass at the start of the study, but biomass responses became progressively negative over the course of the experiment. Decreases in vegetation N exports were also observed over time, possibly due to reduced soil N availability under climate change. Taxonomic diversity showed no response to climate treatments, but the relative abundance of grasses decreased under both warming and simultaneous application of warming, summer drought and elevated CO 2 after 3\uffc2\uffa0yr. In parallel, legume relative abundance increased in all warmed treatments. Functional diversity responses varied depending on climate treatment and leaf trait. In the control treatment, patterns of variation in annual plant biomass were best explained by functional diversity during the study period. However, in warmed treatments, variation in annual plant biomass was more closely linked to the functional traits of dominant species.

Conclusions

Continuous, multi\uffe2\uff80\uff90year exposure to projected climate conditions has a negative impact on above\uffe2\uff80\uff90ground biomass in our grassland study system. Our data suggest that climate\uffe2\uff80\uff90induced decreases in above\uffe2\uff80\uff90ground biomass may be driven by changes in the relative abundance of plant functional groups, and could also reflect changes in soil nutrient availability. Unlike species diversity, community\uffe2\uff80\uff90level leaf traits and functional diversity appear to play an important role for above\uffe2\uff80\uff90ground biomass production, and may have indirect effects on ecosystem stability in changing climates.

", "keywords": ["0106 biological sciences", "2. Zero hunger", "Plant biomass", "Drought", "15. Life on land", "01 natural sciences", "7. Clean energy", "6. Clean water", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "13. Climate action", "[SDV.EE]Life Sciences [q-bio]/Ecology", "Air warming", "Plant functional traits", "Community composition", "Elevated CO2", "environment"]}, "links": [{"href": "https://doi.org/10.1111/j.1654-1103.2012.01452.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Vegetation%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1654-1103.2012.01452.x", "name": "item", "description": "10.1111/j.1654-1103.2012.01452.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1654-1103.2012.01452.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-07-23T00:00:00Z"}}, {"id": "10.1111/j.1469-8137.2004.01025.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:14Z", "type": "Journal Article", "created": "2004-04-13", "title": "Does Greater Night-Time, Rather Than Constant, Warming Alter Growth Of Managed Pasture Under Ambient And Elevated Atmospheric Co2?", "description": "Summary \u2022 This study examined the effects of warming, elevated atmospheric CO 2 and cutting regimen on the growth of Phalaris aquatica cv. Holdfast swards. \u2022 Six temperature gradient tunnels (TGT) were used to manipulate both air temperature and atmospheric CO 2 concentrations (ambient and 750 ppm). Within each tunnel, there were three temperature treatments: no warming, constant warming of +3.0 \u00b0 C and a daytime warming of 2.2 \u00b0 C combined with a night-time warming of 4.0 \u00b0 C and two defoliation frequencies. \u2022A veraged across 20 months of growth, there was a positive effect of elevated atmospheric CO 2 (+11%), no effect of either warming treatment and a negative effect of frequent cutting ( \u2212 19%) on total above ground biomass production. The responses to all treatments, however, were strongly seasonal. \u2022 Positive responses to CO 2 were statistically significant only in the spring, when plant growth was strongest. No evidence was found that high night-time warming had different effects on plant growth and plant responses to elevated atmospheric CO 2 , than constant warming.", "keywords": ["0301 basic medicine", "warming", "Phalaris aquatica Biomass production", "growth response", "04 agricultural and veterinary sciences", "15. Life on land", "Grassland", "pasture", "03 medical and health sciences", "Phalaris aquatica", "13. Climate action", "Climate change", "0401 agriculture", " forestry", " and fisheries", "Keywords: carbon dioxide enrichment", "Phalaris", "Elevated CO2", "mowing"]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2004.01025.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1469-8137.2004.01025.x", "name": "item", "description": "10.1111/j.1469-8137.2004.01025.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2004.01025.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-02-13T00:00:00Z"}}, {"id": "10.1111/nph.12333", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:22Z", "type": "Journal Article", "created": "2013-05-30", "title": "Cumulative Response Of Ecosystem Carbon And Nitrogen Stocks To Chronic Co2exposure In A Subtropical Oak Woodland", "description": "Summary

Rising atmospheric carbon dioxide (CO2) could alter the carbon (C) and nitrogen (N) content of ecosystems, yet the magnitude of these effects are not well known. We examined C and N budgets of a subtropical woodland after 11\uffc2\uffa0yr of exposure to elevated CO2.

We used open\uffe2\uff80\uff90top chambers to manipulate CO2 during regrowth after fire, and measured C, N and tracer 15N in ecosystem components throughout the experiment.

Elevated CO2 increased plant C and tended to increase plant N but did not significantly increase whole\uffe2\uff80\uff90system C or N. Elevated CO2 increased soil microbial activity and labile soil C, but more slowly cycling soil C pools tended to decline. Recovery of a long\uffe2\uff80\uff90term 15N tracer indicated that CO2 exposure increased N losses and altered N distribution, with no effect on N inputs.

Increased plant C accrual was accompanied by higher soil microbial activity and increased C losses from soil, yielding no statistically detectable effect of elevated CO2 on net ecosystem C uptake. These findings challenge the treatment of terrestrial ecosystems responses to elevated CO2 in current biogeochemical models, where the effect of elevated CO2 on ecosystem C balance is described as enhanced photosynthesis and plant growth with decomposition as a first\uffe2\uff80\uff90order response.

", "keywords": ["Soil organic matter", "Long term experiment", "Elevated atmospheric CO2", "Florida scrub oak", "Scrub oak", "Research", "Plant Sciences", "Aboveground biomass", "Plant Biology", "Microbial communities", "04 agricultural and veterinary sciences", "Carbon Cycling", "15. Life on land", "Forest productivity", "Soil carbon", "Rhizosphere processes", "Terrestrial ecosystems", "Dioxide enrichment", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Elevated CO2", "Climate feedbacks", "Global change", "Subtropical woodland", "Nitrogen cycling"]}, "links": [{"href": "https://digitalcommons.odu.edu/context/biology_fac_pubs/article/1264/viewcontent/Day2013CumulativeResponseofEcosystemCarbonandNitrogenOCR.pdf"}, {"href": "https://doi.org/10.1111/nph.12333"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/nph.12333", "name": "item", "description": "10.1111/nph.12333", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.12333"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-05-30T00:00:00Z"}}, {"id": "10.1111/nph.12409", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:22Z", "type": "Journal Article", "created": "2013-07-22", "title": "Fire, Hurricane And Carbon Dioxide: Effects On Net Primary Production Of A Subtropical Woodland", "description": "Summary

Disturbance affects most terrestrial ecosystems and has the potential to shape their responses to chronic environmental change.

Scrub\uffe2\uff80\uff90oak vegetation regenerating from fire disturbance in subtropical Florida was exposed to experimentally elevated carbon dioxide (CO2) concentration (+350\uffc2\uffa0\uffce\uffbcl\uffc2\uffa0l\uffe2\uff88\uff921) using open\uffe2\uff80\uff90top chambers for 11\uffc2\uffa0yr, punctuated by hurricane disturbance in year 8. Here, we report the effects of elevated CO2 on aboveground and belowground net primary productivity (NPP) and nitrogen (N) cycling during this experiment.

The stimulation of NPP and N uptake by elevated CO2 peaked within 2\uffc2\uffa0yr after disturbance by fire and hurricane, when soil nutrient availability was high. The stimulation subsequently declined and disappeared, coincident with low soil nutrient availability and with a CO2\uffe2\uff80\uff90induced reduction in the N concentration of oak stems.

These findings show that strong growth responses to elevated CO2 can be transient, are consistent with a progressively limited response to elevated CO2 interrupted by disturbance, and illustrate the importance of biogeochemical responses to extreme events in modulating ecosystem responses to global environmental change.

", "keywords": ["0106 biological sciences", "NITROGEN-USE EFFICIENCY", "Scrub oak ecosystem", "01 natural sciences", "Trees", "Quercus", "Soil", "nitrogen cycling", "oak woodland", "ECOSYSTEMS", "Global environmental change", "Biomass", "ROOT BIOMASS", "disturbance", "Florida scrub", "elevated CO2", "Elevated atmospheric CO2", "Plant Stems", "Cyclonic Storms", "Aboveground biomass", "FOREST PRODUCTIVITY", "Hurricane", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "Fire", "Soil carbon", "LONG-TERM EXPOSURE", "Net primary productivity", "Long term exposure", "Florida", "Elevated CO2", "fire", "FLORIDA SCRUB", "ABOVEGROUND BIOMASS", "Nitrogen cycling", "TERRESTRIAL", "Oak woodland", "ELEVATED ATMOSPHERIC CO2", "Elevated CO 2", "Nitrogen", "hurricane", "Forest productivity", "Fires", "Terrestrial ecosystems", "SCRUB-OAK ECOSYSTEM", "Net primary productivity (NPP)", "Ecosystem", "Nitrogen use efficiency", "Atmosphere", "net primary productivity (NPP)", "Root biomass", "Plant Sciences", "global environmental change", "Disturbance", "Carbon Dioxide", "15. Life on land", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "SOIL CARBON"]}, "links": [{"href": "https://digitalcommons.odu.edu/context/biology_fac_pubs/article/1266/viewcontent/Day2013FireHurricaneandCarbonDioxideOCR.pdf"}, {"href": "https://doi.org/10.1111/nph.12409"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/nph.12409", "name": "item", "description": "10.1111/nph.12409", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.12409"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-07-22T00:00:00Z"}}, {"id": "10.14279/depositonce-15380", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:55Z", "type": "Journal Article", "created": "2022-02-24", "title": "Decoupling between ecosystem photosynthesis and transpiration: a last resort against overheating", "description": "Abstract

Ecosystems are projected to face extreme high temperatures more frequently in the near future. Various biotic coping strategies exist to prevent heat stress. Controlled experiments have recently provided evidence for continued transpiration in woody plants during high air temperatures, even when photosynthesis is inhibited. Such a decoupling of photosynthesis and transpiration would represent an effective strategy (\uffe2\uff80\uff98known as leaf or canopy cooling\uffe2\uff80\uff99) to prevent lethal leaf temperatures. At the ecosystem scale, continued transpiration might dampen the development and propagation of heat extremes despite further desiccating soils. However, at the ecosystem scale, evidence for the occurrence of this decoupling is still limited. Here, we aim to investigate this mechanism using eddy-covariance data of thirteen woody ecosystems located in Australia and a causal graph discovery algorithm. Working at half-hourly time resolution, we find evidence for a decoupling of photosynthesis and transpiration in four ecosystems which can be classified as Mediterranean woodlands. The decoupling occurred at air temperatures above 35 \uffe2\uff88\uff98C. At the nine other investigated woody sites, we found that vegetation CO2 exchange remained coupled to transpiration at the observed high air temperatures. Ecosystem characteristics suggest that the canopy energy balance plays a crucial role in determining the occurrence of a decoupling. Our results highlight the value of causal-inference approaches for the analysis of complex physiological processes. With regard to projected increasing temperatures and especially extreme events in future climates, further vegetation types might be pushed to threatening canopy temperatures. Our findings suggest that the coupling of leaf-level photosynthesis and stomatal conductance, common in land surface schemes, may need be re-examined when applied to high-temperature events.

", "keywords": ["heat wave", "570", "AUSTRALIA", "Science", "QC1-999", "UNCERTAINTY", "Environmental technology. Sanitary engineering", "01 natural sciences", "transpiration", "FLUX TOWER", "ddc:570", "GE1-350", "TOLERANCE", "TEMPERATURE", "TD1-1066", "0105 earth and related environmental sciences", "photosynthesis", "CONDUCTANCE", "Physics", "Q", "04 agricultural and veterinary sciences", "15. Life on land", "WATER-USE", "MODEL", "Environmental sciences", "13. Climate action", "Earth and Environmental Sciences", "ecosystem functioning", "PINUS-TAEDA", "0401 agriculture", " forestry", " and fisheries", "ELEVATED CO2", "570 Biowissenschaften; Biologie"]}, "links": [{"href": "https://doi.org/10.14279/depositonce-15380"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.14279/depositonce-15380", "name": "item", "description": "10.14279/depositonce-15380", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.14279/depositonce-15380"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-03-14T00:00:00Z"}}, {"id": "10.1371%2fjournal.pone.0060441", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:50Z", "type": "Journal Article", "created": "2013-03-27", "title": "Nitrogen Addition And Warming Independently Influence The Belowground Micro-Food Web In A Temperate Steppe", "description": "Climate warming and atmospheric nitrogen (N) deposition are known to influence ecosystem structure and functioning. However, our understanding of the interactive effect of these global changes on ecosystem functioning is relatively limited, especially when it concerns the responses of soils and soil organisms. We conducted a field experiment to study the interactive effects of warming and N addition on soil food web. The experiment was established in 2006 in a temperate steppe in northern China. After three to four years (2009-2010), we found that N addition positively affected microbial biomass and negatively influenced trophic group and ecological indices of soil nematodes. However, the warming effects were less obvious, only fungal PLFA showed a decreasing trend under warming. Interestingly, the influence of N addition did not depend on warming. Structural equation modeling analysis suggested that the direct pathway between N addition and soil food web components were more important than the indirect connections through alterations in soil abiotic characters or plant growth. Nitrogen enrichment also affected the soil nematode community indirectly through changes in soil pH and PLFA. We conclude that experimental warming influenced soil food web components of the temperate steppe less than N addition, and there was little influence of warming on N addition effects under these experimental conditions.", "keywords": ["China", "Food Chain", "Nematoda", "Nitrogen", "Science", "deposition", "Models", " Biological", "northern china", "Soil", "soil nematodes", "Animals", "Biomass", "organic-matter", "global change", "Phospholipids", "Soil Microbiology", "2. Zero hunger", "elevated co2", "Analysis of Variance", "species composition", "Q", "R", "Temperature", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "13. Climate action", "international", "climate-change manipulations", "plant-communities", "Medicine", "0401 agriculture", " forestry", " and fisheries", "community structure", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371%2fjournal.pone.0060441"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371%2fjournal.pone.0060441", "name": "item", "description": "10.1371%2fjournal.pone.0060441", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371%2fjournal.pone.0060441"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-03-27T00:00:00Z"}}, {"id": "10.1371/journal.pone.0060441", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:51Z", "type": "Journal Article", "created": "2013-03-27", "title": "Nitrogen Addition And Warming Independently Influence The Belowground Micro-Food Web In A Temperate Steppe", "description": "Climate warming and atmospheric nitrogen (N) deposition are known to influence ecosystem structure and functioning. However, our understanding of the interactive effect of these global changes on ecosystem functioning is relatively limited, especially when it concerns the responses of soils and soil organisms. We conducted a field experiment to study the interactive effects of warming and N addition on soil food web. The experiment was established in 2006 in a temperate steppe in northern China. After three to four years (2009-2010), we found that N addition positively affected microbial biomass and negatively influenced trophic group and ecological indices of soil nematodes. However, the warming effects were less obvious, only fungal PLFA showed a decreasing trend under warming. Interestingly, the influence of N addition did not depend on warming. Structural equation modeling analysis suggested that the direct pathway between N addition and soil food web components were more important than the indirect connections through alterations in soil abiotic characters or plant growth. Nitrogen enrichment also affected the soil nematode community indirectly through changes in soil pH and PLFA. We conclude that experimental warming influenced soil food web components of the temperate steppe less than N addition, and there was little influence of warming on N addition effects under these experimental conditions.", "keywords": ["China", "Food Chain", "Nematoda", "Nitrogen", "Science", "deposition", "Models", " Biological", "northern china", "Soil", "soil nematodes", "Animals", "Biomass", "organic-matter", "global change", "Phospholipids", "Soil Microbiology", "2. Zero hunger", "elevated co2", "Analysis of Variance", "species composition", "Q", "R", "Temperature", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "13. Climate action", "international", "climate-change manipulations", "plant-communities", "Medicine", "0401 agriculture", " forestry", " and fisheries", "community structure", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0060441"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0060441", "name": "item", "description": "10.1371/journal.pone.0060441", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0060441"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-03-27T00:00:00Z"}}, {"id": "10.1890/02-3005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:21:21Z", "type": "Journal Article", "created": "2007-06-04", "title": "Co-2 Enrichment Reduces The Energetic Cost Of Biomass Construction In An Invasive Desert Grass", "description": "To examine how global change could influence species invasions, we compared the responses of energetic processes and growth of invasive and native grass species to atmospheric CO2 enrichment in an intact Mojave Desert ecosystem. Combined with its modest influence on photosynthetic activity, elevated atmospheric CO2 was associated with a significant reduction in the energetic cost of aboveground biomass construction in invasive Bromus madritensis spp. rubens (red brome) without a concurrent cost reduction in native Vulpia octoflora (six-weeks fescue). Consequently, the invasive grass species grew faster, grew bigger, and produced more seeds with atmospheric CO2 enrichment than the native grass species. As a physiological mechanism of invasive species success driven by CO2 enrichment, such alterations in biomass construction costs combined with increased photosynthetic activity could trigger a shift in the species composition of this ecosystem, and potentially that of other invaded ecosystems, toward increa...", "keywords": ["0106 biological sciences", "2. Zero hunger", "Bromus madritensis spp. rubens", "Invasive species", "Invasive grasses", "Red brome", "Systems Biology", "Plant Biology", "Native grasses", "NDFF", "Weed Science", "15. Life on land", "01 natural sciences", "Mojave Desert", "Vulpia octoflora", "Relative growth rate", "13. Climate action", "Energetics", "Six-weeks fescue", "Construction cost", "Elevated CO2", "Photosynthesis", "Nevada"]}, "links": [{"href": "https://doi.org/10.1890/02-3005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1890/02-3005", "name": "item", "description": "10.1890/02-3005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/02-3005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-01-01T00:00:00Z"}}, {"id": "10.1890/03-5055", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:21:21Z", "type": "Journal Article", "created": "2007-06-06", "title": "Soil Nitrogen Cycling Under Elevated Co2: A Synthesis Of Forest Face Experiments", "description": "

The extent to which greater net primary productivity (NPP) will be sustained as the atmospheric CO2 concentration increases will depend, in part, on the long\uffe2\uff80\uff90term supply of N for plant growth. Over a two\uffe2\uff80\uff90year period, we used common field and laboratory methods to quantify microbial N, gross N mineralization, microbial N immobilization, and specific microbial N immobilization in three free\uffe2\uff80\uff90air CO2 enrichment experiments (Duke Forest, Oak Ridge, Rhinelander). In these experiments, elevated atmospheric CO2 has increased the input of above\uffe2\uff80\uff90 and belowground litter production, which fuels heterotrophic metabolism in soil. Nonetheless, we found no effect of atmospheric CO2 concentration on any microbial N cycling pool or process, indicating that greater litter production had not initially altered the microbial supply of N for plant growth. Thus, we have no evidence that changes in plant litter production under elevated CO2 will initially slow soil N availability and produce a negative feedback on NPP. Understanding the time scale over which greater plant production modifies microbial N demand lies at the heart of our ability to predict long\uffe2\uff80\uff90term changes in soil N availability and hence whether greater NPP will be sustained in a CO2\uffe2\uff80\uff90enriched atmosphere.

", "keywords": ["2. Zero hunger", "0106 biological sciences", "elevated CO2", "soil microorganisms", "Science", "Ecology and Evolutionary Biology", "microbial immobilization", "04 agricultural and veterinary sciences", "soil N cycling", "15. Life on land", "01 natural sciences", "6. Clean water", "climate change", "gross N mineralization", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "forest FACE experiments", "Forest Sciences"]}, "links": [{"href": "https://doi.org/10.1890/03-5055"}, {"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": "10.1890/03-5055", "name": "item", "description": "10.1890/03-5055", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/03-5055"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-12-01T00:00:00Z"}}, {"id": "10.2136/sssaj2000.6461984x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:21:46Z", "type": "Journal Article", "created": "2010-07-27", "description": "

Soil C sequestration in predicted, future elevated CO2 environments will be important to atmospheric CO2 levels, soil tilth, and fertility. An elevated CO2 study with ponderosa pines (Pinus ponderosa Laws) grown in chambers produced above ground vegetation with a \uffce\uffb413C of \uffe2\uff88\uff9244\uffe2\uff80\uffb0 and roots with \uffe2\uff88\uff9242\uffe2\uff80\uffb0. This together with carbon dating made it possible to follow soil C dynamics. Fifty percent of the California upland soil C, resistant to acid hydrolysis, was designated as the resistant fraction. Carbon dating showed the mean residence times of this fraction to be 400 to 1500 yr greater than the total soil C for the horizons sampled. Young ponderosa pines grown in CO2 chambers produced negligible leaf litter. There were 32% more roots in the presence of either added N or double CO2 but 77% more in the presence of both. Root\uffe2\uff80\uff90derived soil C was equivalent to 10% of the root C after the 6\uffe2\uff80\uff90yr growth period. Analysis of laboratory CO2 evolution during extended incubation showed the active soil C pool represented 1 to 2% of the soil C with a field\uffe2\uff80\uff90equivalent mean residence time (MRT) of 24 to 53 d. The slow pool represented 46 to 52% of the C with MRT of 24 to 67 yr depending on treatment and soil depth. Analysis of the 13CO2 label during incubation from the elevated CO2 treatments, showed the root\uffe2\uff80\uff90derived 13C of the active fraction to have residence times similar to those of the total soil non labeled C at \uffe2\uff89\uff8835 d. Root\uffe2\uff80\uff90derived C of the slow pool at 10 yr MRT turned over three to four time as fast as the general soil C. The 13C of the light fraction (LF), showed it to be most closely associated with the active pool. The particulate organic matter (POM) was part of the slow pool as determined with incubation.

", "keywords": ["N fertilization treatments", "580", "elevated CO2", "13. Climate action", "atmospheric N", "0401 agriculture", " forestry", " and fisheries", "CO2", "04 agricultural and veterinary sciences", "15. Life on land"], "contacts": [{"organization": "Paul, Eldor A., author, Ball, J. T., author, Johnson, D. W., author, Cheng, W., author, Haile-Mariam, Shawel, author, Soil Science Society of America, publisher,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2136/sssaj2000.6461984x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Science%20Society%20of%20America%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2136/sssaj2000.6461984x", "name": "item", "description": "10.2136/sssaj2000.6461984x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj2000.6461984x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2000-11-01T00:00:00Z"}}, {"id": "10.2307/2657091", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:22:03Z", "type": "Journal Article", "created": "2007-02-02", "title": "Family- And Population-Level Responses To Atmospheric Co-2 Concentration: Gas Exchange And The Allocation Of C, N, And Biomass In Plantago Lanceolata (Plantaginaceae)", "description": "

To ascertain the inheritance of responses to changing atmospheric CO2 content, we partitioned response to elevated CO2 in Plantago lanceolata between families and populations in 18 families in two populations. Plants were grown in 35 Pa and 71 Pa partial pressure of CO2 (pCO2) in open\uffe2\uff80\uff90top chambers. We measured above\uffe2\uff80\uff90 and belowground mass, carbon (C), nitrogen (N), hexose sugar, and gas exchange properties in both CO2 treatments. Families within populations differed in mass, mass allocation, root\uffe2\uff80\uff89:\uffe2\uff80\uff89shoot ratios, aboveground percentage N, C\uffe2\uff80\uff89:\uffe2\uff80\uff89N ratio, and gas exchange properties. The CO2 \uffc3\uff97 family interaction is the main indicator of potential evolutionary responses to changing CO2. Significant CO2 \uffc3\uff97 family interactions were observed for N content, C\uffe2\uff80\uff89:\uffe2\uff80\uff89N ratio, and photosynthetic rate (A: instantaneous light\uffe2\uff80\uff90saturated carbon assimilation capacity), intercellular CO2 concentration, transpiration rate (E), and water use efficiency (WUE = A/E), but not for stomatal conductance. Families differed significantly in acclimation across time. The ratio of A in elevated vs. ambient growth CO2, when measured at a common internal CO2 partial pressure was 0.79, indicating down\uffe2\uff80\uff90regulation of A under CO2 enrichment. Mass, C\uffe2\uff80\uff89:\uffe2\uff80\uff89N ratio, percentage, C (%C), and soluble sugar all increased significantly but overall %N did not change. Increases in %C and sugar were significant and were coincident with redistribution of N aboveground. The observed variation among populations and families in response to CO2 is evidence of genetic variation in response and therefore of the potential for novel evolutionary trajectories with rising atmospheric CO2.

", "keywords": ["2. Zero hunger", "0106 biological sciences", "0301 basic medicine", "elevated CO2", "photosynthesis", "Science", "Botany", "nitrogen assimilation", "Plantaginaceae", "gas exchange", "01 natural sciences", "6. Clean water", "03 medical and health sciences", "Plantago lanceolata", "genetic variation", "biomass allocation", "Biology"], "contacts": [{"organization": "Jenkins Klus, Dawn, Kalisz, Susan, Curtis, Peter S., Teeri, James A., Tonsor, Stephen J.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2307/2657091"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/American%20Journal%20of%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2307/2657091", "name": "item", "description": "10.2307/2657091", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2307/2657091"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-06-01T00:00:00Z"}}, {"id": "10.3389/fmicb.2013.00078", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:22:18Z", "type": "Journal Article", "created": "2013-04-09", "title": "Changes In Fungal Community Composition In Response To Elevated Atmospheric Co2 And Nitrogen Fertilization Varies With Soil Horizon", "description": "Increasing levels of atmospheric carbon dioxide (CO2) and rates of nitrogen (N)-deposition to forest ecosystems are predicted to alter the structure and function of soil fungal communities, but the spatially heterogeneous distribution of soil fungi has hampered investigations aimed at understanding such impacts. We hypothesized that soil physical and chemical properties and fungal community composition would be differentially impacted by elevated atmospheric CO2 (eCO2) and N-fertilization in spatially separated field samples, in the forest floor, 0-2, 2-5, and 5-10\u2009cm depth intervals in a loblolly pine Free-Air Carbon Dioxide Enrichment (FACE) experiment. In all soils, quantitative PCR-based estimates of fungal biomass were highest in the forest floor. Fungal richness, based on pyrosequencing of the fungal ribosomal large subunit gene, increased in response to N-fertilization in 0-2\u2009cm and forest floor intervals. Composition shifted in forest floor, 0-2 and 2-5\u2009cm intervals in response to N-fertilization, but the shift was most distinct in the 0-2\u2009cm interval, in which the largest number of statistically significant changes in soil chemical parameters (i.e., phosphorus, organic matter, calcium, pH) was also observed. In the 0-2\u2009cm interval, increased recovery of sequences from the Thelephoraceae, Tricholomataceae, Hypocreaceae, Clavicipitaceae, and Herpotrichiellaceae families and decreased recovery of sequences from the Amanitaceae correlated with N-fertilization. In this same depth interval, Amanitaceae, Tricholomataceae, and Herpotriciellaceae sequences were recovered less frequently from soils exposed to eCO2 relative to ambient conditions. These results demonstrated that vertical stratification should be taken into consideration in future efforts to elucidate environmental impacts on fungal communities and their feedbacks on ecosystem processes.", "keywords": ["elevated CO2", "soil chemistry", "basidiomycota", "Basidiomycota", "nitrogen fertilization", "04 agricultural and veterinary sciences", "Soil Chemistry", "15. Life on land", "agaricales", "Microbiology", "QR1-502", "forest floor", "Ascomycota", "13. Climate action", "soil fungi", "0401 agriculture", " forestry", " and fisheries", "Agaricales"]}, "links": [{"href": "https://doi.org/10.3389/fmicb.2013.00078"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fmicb.2013.00078", "name": "item", "description": "10.3389/fmicb.2013.00078", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fmicb.2013.00078"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-01-01T00:00:00Z"}}, {"id": "10.3389/fmicb.2015.00385", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:22:18Z", "type": "Journal Article", "created": "2015-05-05", "description": "Global environmental change is predicted to have major consequences for carbon cycling and the functioning of soil ecosystems. However, we have limited knowledge about its impacts on the microorganisms, which act as a 'valve' between carbon sequestered in soils versus released into the atmosphere. In this study we examined microbial response to continuous 9-years manipulation of three global change factors (elevated CO2, warming, and nitrogen deposition), singly and in combination using two methods: lipid and amino sugar biomarkers at the Jasper Ridge Global Change Experiment (JRGCE). The two methods yielded important distinctions. There were limited microbial lipid differences, but many significant effects for microbial amino sugars. We found that CO2 was not a direct factor influencing soil carbon and major amino sugar pools, but had a positive impact on bacterial-derived muramic acid. Likewise, warming and nitrogen deposition appeared to enrich residues specific to bacteria despite an overall depletion in total amino sugars. The results indicate that elevated CO2, warming, and nitrogen deposition all appeared to increase bacterial-derived residues, but this accumulation effect was far offset by a corresponding decline in fungal residues. The sensitivity of microbial residue biomarker amino sugars to warming and nitrogen deposition may have implications for our predictions of global change impacts on soil stored carbon.", "keywords": ["2. Zero hunger", "elevated CO2", "warming", "microbial biomass", "soil carbon stabilization", "microbial residue", "04 agricultural and veterinary sciences", "Lipid", "15. Life on land", "Microbiology", "01 natural sciences", "QR1-502", "nitrogen deposition", "Amino sugar", "lipid", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "amino sugar", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Chao eLIANG, Chao eLIANG, Jessica eGutknecht, Teri eBalser,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.3389/fmicb.2015.00385"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fmicb.2015.00385", "name": "item", "description": "10.3389/fmicb.2015.00385", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fmicb.2015.00385"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-05-05T00:00:00Z"}}, {"id": "10.5061/dryad.29mb7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:23:07Z", "type": "Dataset", "title": "Data from: Growth and carbon relations of mature Picea abies trees under 5\u00a0years of free-air CO2 enrichment", "description": "unspecifiedPicea-FACE_synthesis_gas_exchangeNeedle gas exchange rates measured on 1-year-old needles in ambient (A) and elevated (E) trees at both ambient and elevated CO2 levels (400 and 550 ppm) during five summer field campaigns (18 June, 2 July, and 19 September 2013; 23 and 26 September 2014).", "keywords": ["Conifers", "elevated CO2", "height profile", "carbon isotopes", "Picea abies", "Face", "wood anatomy", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.5061/dryad.29mb7"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.29mb7", "name": "item", "description": "10.5061/dryad.29mb7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.29mb7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-06-27T00:00:00Z"}}, {"id": "10.5194/bg-8-353-2011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:23:28Z", "type": "Journal Article", "created": "2011-02-14", "title": "Free Atmospheric Co2 Enrichment Increased Above Ground Biomass But Did Not Affect Symbiotic N-2-Fixation And Soil Carbon Dynamics In A Mixed Deciduous Stand In Wales", "description": "

Abstract. Through increases in net primary production (NPP), elevated CO2 is hypothesized to increase the amount of plant litter entering the soil. The fate of this extra carbon on the forest floor or in mineral soil is currently not clear. Moreover, increased rates of NPP can be maintained only if forests can escape nitrogen limitation. In a Free atmospheric CO2 Enrichment (FACE) experiment near Bangor, Wales, 4 ambient and 4 elevated [CO2] plots were planted with patches of Betula pendula, Alnus glutinosa and Fagus sylvatica on a former arable field. After 4 years, biomass averaged for the 3 species was 5497 (se 270) g m\uffe2\uff88\uff922 in ambient and 6450 (se 130) g m\uffe2\uff88\uff922 in elevated [CO2] plots, a significant increase of 17% (P = 0.018). During that time, only a shallow L forest floor litter layer had formed due to intensive bioturbation. Total soil C and N contents increased irrespective of treatment and species as a result of afforestation. We could not detect an additional C sink in the soil, nor were soil C stabilization processes affected by elevated [CO2]. We observed a decrease of leaf N content in Betula and Alnus under elevated [CO2], while the soil C/N ratio decreased regardless of CO2 treatment. The ratio of N taken up from the soil and by N2-fixation in Alnus was not affected by elevated [CO2]. We infer that increased nitrogen use efficiency is the mechanism by which increased NPP is sustained under elevated [CO2] at this site.

", "keywords": ["rotation poplar plantation", "0106 biological sciences", "0301 basic medicine", "elevated co2", "QE1-996.5", "Ecology", "dinitrogen fixation", "mineral soil", "natural n-15 abundance", "face", "Geology", "alnus-glutinosa", "15. Life on land", "pine forest", "01 natural sciences", "03 medical and health sciences", "Life", "13. Climate action", "QH501-531", "nitrogen-use efficiency", "organic-matter", "QH540-549.5"]}, "links": [{"href": "https://doi.org/10.5194/bg-8-353-2011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-8-353-2011", "name": "item", "description": "10.5194/bg-8-353-2011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-8-353-2011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-02-14T00:00:00Z"}}, {"id": "10.5281/zenodo.8090687", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-03T16:25:42Z", "type": "Journal Article", "created": "2021-09-15", "title": "Alternate partial root-zone N-fertigation increases water use efficiency and N uptake of barley at elevated CO2", "description": "Elevated atmospheric CO2 concentration (e[CO2]) increases water use efficiency (WUE) while reducing nitrogen (N) concentration of crops particularly under drought conditions; yet the combined effects of e[CO2] and different N-fertigation regimes on WUE and crop N nutrition remain largely elusive. In this experiment, the growth and physiological responses of two barley genotypes, wild type barley Steptoe (WT) and its correspondent ABA-deficient mutant barley Az34, to three N-fertigation regimes at ambient CO2 (a[CO2]) (400 ppm) and e [CO2] (800 ppm) were investigated. From tillering to grain filling stage, the plants were subjected to three Nfertigation regimes: 1) N-fertigation at full irrigation volume (FIN); 2) N-fertigation at reduced irrigation volume (DIN); 3) alternate N-fertigation at reduced irrigation volume (PRDN). Although e[CO2] had little effect on gs, Tr and plant water use of WT, especially under DIN and PRDN, it increased An, resulting in an increased WUE at stomatal, leaf and whole plant levels. For Az34, the positive effect of e[CO2] on WUE was attributed to both significantly enhanced An and lowered gs and Tr. For both genotypes, e[CO2] increased 100-grain weight and shoot dry biomass but didn\u2019t affect grain yield and WUE for grain production (WUEg). PRDN increased grain yield, HI and WUEg of both genotypes regardless of [CO2], compared to FIN. DIN and PRDN increased N uptake of both genotypes at e[CO2] compared to FIN. Compared to a[CO2], e[CO2] increased 15N uptake and 15N recovery rate of both genotypes by enhancing plant biomass. In addition, both genotypes grown under DIN and PRDN allocated more N to the grain compared to the FIN plants. Collectively, N-fertigation at reduced irrigation volume promoted N allocation to the grain and increased WUE, particularly under e[CO2]. Such information is conductive for optimizing WUE and N nutrition of crops in a future water-limited and CO2-enriched environment", "keywords": ["N nutrition", "0106 biological sciences", "2. Zero hunger", "N-fertigation", "Water use efficiency", "0401 agriculture", " forestry", " and fisheries", "Elevated CO2", "Growth", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.8090687"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20Water%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.8090687", "name": "item", "description": "10.5281/zenodo.8090687", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.8090687"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-12-01T00:00:00Z"}}, {"id": "20.500.11815/1261", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:27:40Z", "type": "Journal Article", "created": "2018-10-24", "title": "Using research networks to create the comprehensive datasets needed to assess nutrient availability as a key determinant of terrestrial carbon cycling", "description": "Open AccessA wide range of research shows that nutrient availability strongly influences terrestrial carbon (C) cycling and shapes ecosystem responses to environmental changes and hence terrestrial feedbacks to climate. Nonetheless, our understanding of nutrient controls remains far from complete and poorly quantified, at least partly due to a lack of informative, comparable, and accessible datasets at regional-to-global scales. A growing research infrastructure of multi-site networks are providing valuable data on C fluxes and stocks and are monitoring their responses to global environmental change and measuring responses to experimental treatments. These networks thus provide an opportunity for improving our understanding of C-nutrient cycle interactions and our ability to model them. However, coherent information on how nutrient cycling interacts with observed C cycle patterns is still generally lacking. Here, we argue that complementing available C-cycle measurements from monitoring and experimental sites with data characterizing nutrient availability will greatly enhance their power and will improve our capacity to forecast future trajectories of terrestrial C cycling and climate. Therefore, we propose a set of complementary measurements that are relatively easy to conduct routinely at any site or experiment and that, in combination with C cycle observations, can provide a robust characterization of the effects of nutrient availability across sites. In addition, we discuss the power of different observable variables for informing the formulation of models and constraining their predictions. Most widely available measurements of nutrient availability often do not align well with current modelling needs. This highlights the importance to foster the interaction between the empirical and modelling communities for setting future research priorities.", "keywords": ["Global vegetation models", "550", "manipulation experiments", "Terrestrial-Aquatic Linkages", "Kolefni", "01 natural sciences", "Nutrient cycle", "Agricultural and Biological Sciences", "Terrestrial ecosystem", "SDG 13 - Climate Action", "Climate change", "Jar\u00f0vegur", "Environmental resource management", "Global change", "General Environmental Science", "SDG 15 - Life on Land", "Carbon-nutrient cycle interactions", "2. Zero hunger", "Data syntheses", "Global and Planetary Change", "Ecology", "Geography", "Physics", "Life Sciences", "Application of Stable Isotopes in Trophic Ecology", "Cycling", "Carbon cycle", "04 agricultural and veterinary sciences", "Chemistry", "ORGANIC-MATTER", "Archaeology", "Physical Sciences", "Nutrient availability", "NET PRIMARY PRODUCTIVITY", "Ecosystem Functioning", "570", "LAND", "TROPICAL RAIN-FOREST", "carbon-nutrient cycle interactions", "data syntheses", "Soil Science", "Environmental science", "[SDU] Sciences of the Universe [physics]", "SOIL-PHOSPHORUS AVAILABILITY", "global vegetation models", "SDG 3 - Good Health and Well-being", "nutrients", "USE EFFICIENCY", "SDG 7 - Affordable and Clean Energy", "GLOBAL CHANGE", "Key (lock)", "Biology", "Ecosystem", "Manipulation experiments", "0105 earth and related environmental sciences", "Renewable Energy", " Sustainability and the Environment", "Ecosystem Structure", "Public Health", " Environmental and Occupational Health", "Nutrients", "15. Life on land", "Computer science", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "ECOSYSTEM RESPONSES", "FOS: Biological sciences", "Global Methane Emissions and Impacts", "Environmental Science", "0401 agriculture", " forestry", " and fisheries", "NITROGEN-FIXATION", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Nutrient Limitation", "ELEVATED CO2", "Nutrient"]}, "links": [{"href": "https://doi.org/20.500.11815/1261"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "20.500.11815/1261", "name": "item", "description": "20.500.11815/1261", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.11815/1261"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-07T00:00:00Z"}}, {"id": "3201583209", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:28:45Z", "type": "Journal Article", "created": "2021-09-15", "title": "Alternate partial root-zone N-fertigation increases water use efficiency and N uptake of barley at elevated CO2", "description": "Elevated atmospheric CO2 concentration (e[CO2]) increases water use efficiency (WUE) while reducing nitrogen (N) concentration of crops particularly under drought conditions; yet the combined effects of e[CO2] and different N-fertigation regimes on WUE and crop N nutrition remain largely elusive. In this experiment, the growth and physiological responses of two barley genotypes, wild type barley Steptoe (WT) and its correspondent ABA-deficient mutant barley Az34, to three N-fertigation regimes at ambient CO2 (a[CO2]) (400 ppm) and e [CO2] (800 ppm) were investigated. From tillering to grain filling stage, the plants were subjected to three Nfertigation regimes: 1) N-fertigation at full irrigation volume (FIN); 2) N-fertigation at reduced irrigation volume (DIN); 3) alternate N-fertigation at reduced irrigation volume (PRDN). Although e[CO2] had little effect on gs, Tr and plant water use of WT, especially under DIN and PRDN, it increased An, resulting in an increased WUE at stomatal, leaf and whole plant levels. For Az34, the positive effect of e[CO2] on WUE was attributed to both significantly enhanced An and lowered gs and Tr. For both genotypes, e[CO2] increased 100-grain weight and shoot dry biomass but didn\u2019t affect grain yield and WUE for grain production (WUEg). PRDN increased grain yield, HI and WUEg of both genotypes regardless of [CO2], compared to FIN. DIN and PRDN increased N uptake of both genotypes at e[CO2] compared to FIN. Compared to a[CO2], e[CO2] increased 15N uptake and 15N recovery rate of both genotypes by enhancing plant biomass. In addition, both genotypes grown under DIN and PRDN allocated more N to the grain compared to the FIN plants. Collectively, N-fertigation at reduced irrigation volume promoted N allocation to the grain and increased WUE, particularly under e[CO2]. Such information is conductive for optimizing WUE and N nutrition of crops in a future water-limited and CO2-enriched environment", "keywords": ["N nutrition", "2. Zero hunger", "0106 biological sciences", "N-fertigation", "Water use efficiency", "0401 agriculture", " forestry", " and fisheries", "Elevated CO2", "Growth", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. 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