{"type": "FeatureCollection", "features": [{"id": "10.1007/s10533-008-9182-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:44Z", "type": "Journal Article", "created": "2008-02-13", "title": "Stabilization Of Recent Soil Carbon In The Humid Tropics Following Land Use Changes: Evidence From Aggregate Fractionation And Stable Isotope Analyses", "description": "Quantitative knowledge of stabilization- and decomposition processes is necessary to under- stand, assess and predict effects of land use changes on storage and stability of soil organic carbon (soil C) in the tropics. Although it is well documented that different soil types have different soil C stocks, it is presently unknown how different soil types affect the stability of recently formed soil C. Here, we analyze the main controls of soil C storage in the top 0.1 m of soils developed on Tertiary sediments and soils developed on volcanic ashes. Using a combination of fractionation techniques with 13 C isotopes analyses we had the opportunity to trace origin and stability of soil carbon in different aggregate fractions under pasture and secondary forest. Soil C contents were higher in volcanic ash soils (47-130 g kg -1 ) than in sedimentary soils (19-50 g kg -1 ). Mean residence time (MRT) of forest-derived carbon in pastures increased from 37 to 57 years with increasing silt + clay content in sedimentary soils, but was indepen- dent from soil properties in volcanic ash soils. MRTs of pasture-derived carbon in secondary forests were considerably shorter, especially in volcanic ash soils, where no pasture-derived carbon could be detected in any of the four studied secondary forests. The implications of these results are that the MRT of recently incorporated organic carbon depends on clay mineralogy and is longer in soils dominated by smectite than non-crystalline minerals. Our results show that the presence of soil C stabilization processes, does not necessarily mean that recent incorporated soil C will also be effectively stabilized.", "keywords": ["2. Zero hunger", "Carbon sequestration; Ecuador; Mean residence time; Pasture; Secondary forest; Soil type; Texture; Water-stable aggregates", "13. Climate action", "Environmental Chemistry", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Earth-Surface Processes", "Water Science and Technology"]}, "links": [{"href": "https://doi.org/10.1007/s10533-008-9182-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-008-9182-y", "name": "item", "description": "10.1007/s10533-008-9182-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-008-9182-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-02-14T00:00:00Z"}}, {"id": "10.1007/s10533-008-9205-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:44Z", "type": "Journal Article", "created": "2008-06-17", "title": "Evaluation Of Effects Of Sustained Decadal Precipitation Manipulations On Soil Carbon Stocks", "description": "Throughout a 13\u00a0year period, the Throughfall Displacement Experiment sustained both increased (+33; wet) and decreased (\u221233%; dry) throughfall into an upland oak forest in Tennessee. Organic (O) horizon carbon (C) stocks were measured at several occasions before, during and after the experiment and mineral soil C stocks before and after the experiment. In the O horizon, higher C stocks were observed in the dry treatment compared to the ambient and wet, attributable to a combination of enhanced litter inputs and reduced decomposition. No precipitation treatment effects on mineral soil C stocks were found to a depth of 60\u00a0cm. Conversely, long-term reductions in surface mineral soil C stocks were surprisingly high for all treatments (3.5\u20132.7% C in the 0\u201315\u00a0cm layer and from 0.6 to 0.5% in the 15\u201330\u00a0cm layer) over the duration of the experiment. A clear explanation for this temporal trend in C storage was not readily apparent.", "keywords": ["Environmental Chemistry", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Earth-Surface Processes", "Water Science and Technology", "0105 earth and related environmental sciences", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1007/s10533-008-9205-8"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-008-9205-8", "name": "item", "description": "10.1007/s10533-008-9205-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-008-9205-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-06-01T00:00:00Z"}}, {"id": "10.1007/s10533-009-9381-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:44Z", "type": "Journal Article", "created": "2009-10-13", "title": "Plant-Soil Interactions And Acclimation To Temperature Of Microbial-Mediated Soil Respiration May Affect Predictions Of Soil Co2 Efflux", "description": "Open AccessPeer reviewed", "keywords": ["Life Sciences", " general", "Carbon cycle modeling", "2. Zero hunger", "Ecosystem ecology", "Life Sciences", "Soil respiration", "04 agricultural and veterinary sciences", "15. Life on land", "Biogeosciences", "Ecosystems", "6. Clean water", "general", "13. Climate action", "Earth Sciences", "Environmental Chemistry", "Climate change", "0401 agriculture", " forestry", " and fisheries", "Earth-Surface Processes", "Water Science and Technology"]}, "links": [{"href": "https://escholarship.org/content/qt74h8k7gh/qt74h8k7gh.pdf"}, {"href": "https://doi.org/10.1007/s10533-009-9381-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-009-9381-1", "name": "item", "description": "10.1007/s10533-009-9381-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-009-9381-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-10-14T00:00:00Z"}}, {"id": "10.1007/s10533-010-9426-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:44Z", "type": "Journal Article", "created": "2010-03-15", "title": "Deepened Snow Increases Late Thaw Biogeochemical Pulses In Mesic Low Arctic Tundra", "description": "Pulses of plant-available nutrients to the soil solution are expected to occur during the dynamic winter\u2013spring transition in arctic tundra. Our aims were to quantify the magnitude of these potential nutrient pulses, to understand the sensitivity of these pulses to winter conditions, and to characterize and integrate the environmental and biogeochemical dynamics of this period. To test the hypotheses that snow depth, temperature and soil water\u2014and not snow nutrient content\u2014are important controls on winter and spring biogeochemistry, we sampled soil from under ambient and deepened snow every 3 days from late winter to spring, in addition to the snowpack at the start of thaw. Soil and microbial biogeochemical dynamics were divided into distinct phases that correlated with steps in soil temperature and soil water. Soil solution and microbial pools of C, N and P fluctuated with strong peaks and declines throughout the thaw, especially under deepened snow. Snowpack nutrient accumulation was negligible relative to these biogeochemical peaks. All nutrient and microbial peaks declined simultaneously at the end of snowmelt and so this decline was delayed by 15 days under deepened snow. The timing of these nutrient pulses is critical for plant species nutrient availability and landscape nutrient budgets. This detailed and statistically-based characterisation of the winter\u2013spring transition in terms of environmental and biogeochemical variables should provide a useful foundation for future biogeochemical process-based studies of thaw, and indicate that spring thaw and possibly growing season biogeochemical dynamics are sensitive to present and future variability in winter snow depth.", "keywords": ["2. Zero hunger", "13. Climate action", "Environmental Chemistry", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Earth-Surface Processes", "Water Science and Technology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1007/s10533-010-9426-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-010-9426-5", "name": "item", "description": "10.1007/s10533-010-9426-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-010-9426-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-03-16T00:00:00Z"}}, {"id": "10.1007/s10533-010-9496-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:44Z", "type": "Journal Article", "created": "2010-07-11", "title": "Effects Of Nitrogen Additions On Above- And Belowground Carbon Dynamics In Two Tropical Forests", "description": "Anthropogenic nitrogen (N) deposition is increasing rapidly in tropical regions, adding N to ecosystems that often have high background N availability. Tropical forests play an important role in the global carbon (C) cycle, yet the effects of N deposition on C cycling in these ecosystems are poorly understood. We used a field N-fertilization experiment in lower and upper elevation tropical rain forests in Puerto Rico to explore the responses of above- and belowground C pools to N addition. As expected, tree stem growth and litterfall productivity did not respond to N fertilization in either of these N-rich forests, indicating a lack of N limitation to net primary productivity (NPP). In contrast, soil C concentrations increased significantly with N fertilization in both forests, leading to larger C stocks in fertilized plots. However, different soil C pools responded to N fertilization differently. Labile (low density) soil C fractions and live fine roots declined with fertilization, while mineral-associated soil C increased in both forests. Decreased soil CO2 fluxes in fertilized plots were correlated with smaller labile soil C pools in the lower elevation forest (R2\u00a0=\u00a00.65, p\u00a0<\u00a00.05), and with lower live fine root biomass in the upper elevation forest (R2\u00a0=\u00a00.90, p\u00a0<\u00a00.05). Our results indicate that soil C storage is sensitive to N deposition in tropical forests, even where plant productivity is not N-limited. The mineral-associated soil C pool has the potential to respond relatively quickly to N additions, and can drive increases in bulk soil C stocks in tropical forests.", "keywords": ["58 Geosciences Aboveground Biomass", "15. Life on land", "Roots", "Aboveground Biomass", "Environmental sciences", "Soil Respiration", "Dissolved Organic Carbon", "Soil Density Fractions", "Environmental Chemistry", "Nutrient Limitation", "54 Environmental Sciences", "Geosciences", "Earth-Surface Processes", "Water Science and Technology"]}, "links": [{"href": "https://escholarship.org/content/qt7ww245cp/qt7ww245cp.pdf"}, {"href": "https://doi.org/10.1007/s10533-010-9496-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-010-9496-4", "name": "item", "description": "10.1007/s10533-010-9496-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-010-9496-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-07-11T00:00:00Z"}}, {"id": "10.1007/s10533-015-0157-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:45Z", "type": "Journal Article", "created": "2015-11-14", "title": "Chronic Nitrogen Fertilization And Carbon Sequestration In Grassland Soils: Evidence Of A Microbial Enzyme Link", "description": "Chronic nitrogen (N) fertilization can greatly affect soil carbon (C) sequestration by altering biochemical interactions between plant detritus and soil microbes. In lignin-rich forest soils, chronic N additions tend to increase soil C content partly by decreasing the activity of lignin-degrading enzymes. In cellulose-rich grassland soils it is not clear whether cellulose-degrading enzymes are also inhibited by N additions and what consequences this might have on changes in soil C content. Here we address whether chronic N fertilization has affected (1) the C content of light versus heavier soil fractions, and (2) the activity of four extracellular enzymes including the C-acquiring enzyme \u03b2-1,4-glucosidase (BG; necessary for cellulose hydrolysis). We found that 19\u00a0years of chronic N-only addition to permanent grassland have significantly increased soil C sequestration in heavy but not in light soil density fractions, and this C accrual was associated with a significant increase (and not decrease) of BG activity. Chronic N fertilization may increase BG activity because greater N availability reduces root C:N ratios thus increasing microbial demand for C, which is met by C inputs from enhanced root C pools in N-only fertilized soils. However, BG activity and total root mass strongly decreased in high pH soils under the application of lime (i.e. CaCO3), which reduced the ability of these organo-mineral soils to gain more C per units of N added. Our study is the first to show a potential \u2018enzyme link\u2019 between (1) long-term additions of inorganic N to grassland soils, and (2) the greater C content of organo-mineral soil fractions. Our new hypothesis is that the \u2018enzyme link\u2019 occurs because (a) BG activity is stimulated by increased microbial C demand relative to N under chronic fertilization, and (b) increased BG activity causes more C from roots and from microbial metabolites to accumulate and stabilize into organo-mineral C fractions. We suggest that any combination of management practices that can influence the BG \u2018enzyme link\u2019 will have far reaching implications for long-term C sequestration in grassland soils.", "keywords": ["DECOMPOSITION", "DYNAMICS", "570", "\u03b2-1", "4-Glucosidase", "/dk/atira/pure/subjectarea/asjc/2300/2304", "NUTRIENT RELEASE", "Environmental Sciences & Ecology", "Root C:N ratio", "Extracellular enzyme activity", "LITTER DECAY", "FOREST ECOSYSTEMS", "0399 Other Chemical Sciences", "0402 Geochemistry", "Environmental Chemistry", "Geosciences", " Multidisciplinary", "beta-1", "4-Glucosidase", "Earth-Surface Processes", "Water Science and Technology", "2. Zero hunger", "Multidisciplinary", "Science & Technology", "/dk/atira/pure/subjectarea/asjc/1900/1904", "Geology", "sequestration", "Agronomy & Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "Soil carbon", "N DEPOSITION", "ORGANIC-MATTER", "PHOSPHORUS", "Fertilization", "Physical Sciences", "N ratio [Root C]", "0401 agriculture", " forestry", " and fisheries", "Soil carbon sequestration", "Liming", "TURNOVER", "Life Sciences & Biomedicine", "Geosciences", "/dk/atira/pure/subjectarea/asjc/2300/2312", "Environmental Sciences", "RESPONSES"]}, "links": [{"href": "https://doi.org/10.1007/s10533-015-0157-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-015-0157-5", "name": "item", "description": "10.1007/s10533-015-0157-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-015-0157-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-11-14T00:00:00Z"}}, {"id": "10.1007/s10533-015-0169-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:45Z", "type": "Journal Article", "created": "2015-12-09", "title": "Elevated Co2 Increased Phosphorous Loss From Decomposing Litter And Soil Organic Matter At Two Face Experiments With Trees", "description": "Sustained increased productivity of trees growing in elevated CO2 depends in part on their stoichiometric flexibility, i.e., increasing their nutrient use efficiency, or on increased nutrient uptake from the soil. Phosphorus (P) may be a nutrient as limiting as nitrogen (N) in terrestrial ecosystems and may play a key-process in global terrestrial C storage. For this study archived litter and soil samples of two free air CO2 enrichment (FACE) experiments were analyzed for C, N and P. Populus euramericana, nigra and alba and Betula pendula, Alnus glutinosa and Fagus sylvatica were grown in ambient and elevated CO2 at respectively the Euro- and BangorFACE experiments. At EuroFACE, aboveground litter accumulated in L, F and H layers, while at BangorFACE almost all aboveground litter was incorporated into the mineral soil due to bioturbation. At EuroFACE, more P was lost from the F and H litter layers due to trees growing in elevated CO2, while at BangorFACE more P was lost from the mineral soil. Results of this study imply that trees growing in elevated CO2 were P limited at both experiments. Therefore, with increasing atmospheric CO2, P may play a more pronounced role than previous thought in regulating secondary forest growth. Moreover, increased atmospheric CO2 and ample N may allow a larger pool of P to become available for uptake due to, for instance, increased phosphatase activity resulting in increased organic matter turnover and biogenic weathering. Therefore, it may be postulated that under non-N-limited conditions, e.g., during regrowth, under high N deposition or in systems with high N2-fixation, increased P availability and uptake may allow P-limited forests to sustain increased growth under increasing atmospheric CO2.", "keywords": ["0106 biological sciences", "4. Education", "Litter and soil stoichiometry", "04 agricultural and veterinary sciences", "15. Life on land", "Soil phosphorous", "01 natural sciences", "Secondary forest growth", "13. Climate action", "Elevated CO", "Environmental Chemistry", "0401 agriculture", " forestry", " and fisheries", "FACE experiment", "Earth-Surface Processes", "Water Science and Technology"], "contacts": [{"organization": "Hoosbeek, Marcel R.", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s10533-015-0169-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-015-0169-1", "name": "item", "description": "10.1007/s10533-015-0169-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-015-0169-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-08T00:00:00Z"}}, {"id": "10.1007/s10533-021-00759-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:45Z", "type": "Journal Article", "created": "2021-01-26", "title": "How much carbon can be added to soil by sorption?", "description": "Abstract

Quantifying the upper limit of stable soil carbon storage is essential for guiding policies to increase soil carbon storage. One pool of carbon considered particularly stable across climate zones and soil types is formed when dissolved organic carbon sorbs to minerals. We quantified, for the first time, the potential of mineral soils to sorb additional dissolved organic carbon (DOC) for six soil orders. We compiled 402 laboratory sorption experiments to estimate the additional DOC sorption potential, that is the potential of excess DOC sorption in addition to the existing background level already sorbed in each soil sample. We estimated this potential using gridded climate and soil geochemical variables within a machine learning model. We find that mid- and low-latitude soils and subsoils have a greater capacity to store DOC by sorption compared to high-latitude soils and topsoils. The global additional DOC sorption potential for six soil orders is estimated to be 107 $$ pm$$ \uffc2\uffb1 13 Pg C to 1\uffc2\uffa0m depth. If this potential was realized, it would represent a 7% increase in the existing total carbon stock.2000\u00a0\u03bcm) was generated in the presence of earthworms, with the highest in the treatment with endogeic earthworms. Besides, both the two species increased the proportion of non-labile organic carbon in large macroaggregates, which was conducive to carbon protection. At the end of incubation, the 13C signatures of soil indicated that the distribution of litter-derived carbon was significantly affected by the consumption and excretion activities of earthworms, with the result that more carbon was sequestrated in large macroaggregates (>2000\u00a0\u03bcm). Consistent with our hypothesis, Amynthas sp., an epi-endogeic earthworms, could rapidly consume organic residues and stimulate microbial biomass to increase litter decomposition rate and incorporate organic carbon into soil structures, while P. corethrurus, an endogeic earthworms, would stabilize the organic carbon that has been already incorporated into the soil through the formation of large macroaggregates and the transformation of soil organic carbon fractions to more recalcitrant forms.", "keywords": ["2. Zero hunger", "13. Climate action", "Stratigraphy", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Earth-Surface Processes"]}, "links": [{"href": "https://doi.org/10.1007/s11368-017-1657-9"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Soils%20and%20Sediments", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11368-017-1657-9", "name": "item", "description": "10.1007/s11368-017-1657-9", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11368-017-1657-9"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-22T00:00:00Z"}}, {"id": "10.1007/s11368-017-1899-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:09Z", "type": "Journal Article", "created": "2017-12-22", "title": "A meta-analysis and critical evaluation of influencing factors on soil carbon priming following biochar amendment", "description": "Previous studies have found biochar-induced effects on native soil organic carbon (NSOC) decomposition, with a range of positive, negative and no priming reported. However, many uncertainties still exist regarding which parameters drive the amplitude and the direction of the biochar priming. We conducted a quantitative analysis of 1170 groups of data from 27 incubation studies using boosted regression trees (BRTs). BRT is a machine learning method combining regression trees and a boosting algorithm, which can effectively partition independent influences of various factors on the target variable in the complex ecological processes. The BRT model explained a total of 72.4% of the variation in soil carbon (C) priming following biochar amendment, in which incubation conditions (36.5%) and biochar properties (33.7%) explained a larger proportion than soil properties (29.8%). The predictors that substantially accounted for the explained variation included incubation time (27.1%) and soil moisture (5.0%), biochar C/N ratio (6.2%), nitrogen content (5.5%), pyrolysis time during biochar production (5.1%), biochar pH (4.5%), soil C content (5.2%), sand (4.7%) and clay content (4.1%). In contrast, other incubation conditions (temperature, biochar dose, whether nutrient was added), biochar properties (biochar C, feedstock type, ash content, pyrolysis temperature, whether biochar was activated) and soil properties (nitrogen content, silt content, C/N ratio, pH, land use type) had small contribution (each <\u20094%). Positive priming occurred within the first 2\u00a0years of incubations, with a change to negative priming afterwards. The priming was negative for low N biochar or in high-moisture soils but positive on their reverse sides. The size of negative priming increased with rising biochar C/N ratio, pyrolysis time and soil clay content, but deceased with soil C/N ratio. We determine the critical drivers for biochar effect on native soil organic C cycling, which can help us to better predict soil C sequestration following biochar amendment.", "keywords": ["2. Zero hunger", "Agricultural", "550", "1904 Earth-Surface Processes", "Soil respiration", "04 agricultural and veterinary sciences", "15. Life on land", "Boosted regression tree", "Incubation time", "Native soil organic matter", "Environmental sciences", "Earth sciences", "veterinary and food sciences", "0401 agriculture", " forestry", " and fisheries", "Priming effect", "1913 Stratigraphy", "Pyrogenic organic matter"]}, "links": [{"href": "https://doi.org/10.1007/s11368-017-1899-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Soils%20and%20Sediments", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11368-017-1899-6", "name": "item", "description": "10.1007/s11368-017-1899-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11368-017-1899-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-12-22T00:00:00Z"}}, {"id": "10.1016/j.catena.2013.06.021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:50Z", "type": "Journal Article", "created": "2013-07-21", "title": "Effects Of Biochar On Soil Properties And Erosion Potential In A Highly Weathered Soil", "description": "AbstractHighly weathered soils in humid Asia are characterized by low soil fertility and high soil erosion potential. This study evaluates the influences of biochar made from the waste wood of white lead trees (Leucaena leucocephala (Lam.) de Wit) on the physicochemical and biological properties of long-term cultivated, acidic Ultisol. This study used three application rates (0%, 2.5%, and 5% (wt/wt)) of the biochar with an incubation time of 105d for all cases. Soils were collected at 21d, 42d, 63d, 84d and 105d during the incubation period to evaluate changes in soil properties over time. A simulated rainfall event (80mmh\u22121) was performed to estimate soil loss for all treatments at the end of the incubation time. Experimental results indicate that applying biochar improved the physicochemical and biological properties of the highly weathered soils, including significant increases in soil pH from 3.9 to 5.1, cation exchange capacity from 7.41 to 10.8cmol (+) kg\u22121, base cation percentage from 6.40 to 26.0%, and microbial biomass carbon (MBC) from 835 to 1262mgkg\u22121. Compared with the control (i.e., no biochar), biochar application decreased bulk density from 1.4 to 1.1Mgm\u22123, increased Ksat by 1.8 times and increased the mean weight diameter (MWD) of soil aggregates from 2.6cm to 4.0cm. Incorporating biochar into the soil significantly reduced soil loss by 50% and 64% at 2.5% and 5% application rates, respectively, compared with the control. The formation of macroaggregates in the biochar-amended soils is the critical factor to improve soil erosion potential. Based on these results, a 5% application rate of biochar is considered as suitable for highly weathered soil because this application rate efficiently improves soil physiochemical properties and reduces soil loss.", "keywords": ["2. Zero hunger", "Biochar", "Erosion", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Highly weathered soil", "15. Life on land", "Soil loss", "Soil quality", "6. Clean water", "Earth-Surface Processes"], "contacts": [{"organization": "Chien Sheng Wang, Shih-Hao Jien,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.catena.2013.06.021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/CATENA", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.catena.2013.06.021", "name": "item", "description": "10.1016/j.catena.2013.06.021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.catena.2013.06.021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-01T00:00:00Z"}}, {"id": "10.1016/j.catena.2015.02.024", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:50Z", "type": "Journal Article", "created": "2015-04-11", "title": "Effects Of Wildfire On Mercury Mobilisation In Eucalypt And Pine Forests", "description": "Abstract Wildfires and subsequent rainfall play an important role in the redistribution of major, minor and trace chemical elements, which could be mobilised from burnt soils and ashes. In particular, the fire-induced release of mercury (Hg) into the environment is relevant to study due to its volatilisation and toxicity. However, the impact of wildfire followed by rainfall on mercury redistribution is poorly documented. Hence, eucalypt- and pine-covered hillslopes (1\u20133) were surveyed in two burnt areas (Ermida and S. Pedro do Sul, Portugal), as well as in a non-burnt eucalypt slope (Ermida). Top-soils (0\u20132\u00a0cm) and ashes were sampled 4 and 14\u00a0weeks after the fire, the latter following an episode of heavy precipitation. In order to clarify the effect of temperature on Hg release from the soil, a heating experiment was also conducted. Results revealed that 30% of the Hg retained in eucalypt soils was released by the fire, corresponding to a loss of 1.0\u20131.1\u00a0g\u00a0Hg\u00a0ha\u2212\u00a01 of burnt soil. Levels in burnt eucalypt soils were twice the values registered in burnt pine soils for both fire severities. Mercury in ashes pointed to similar trend between the two types of vegetation. Results from the heating experiment with soil suggest that temperature reached in the wildfire was insufficient to destroy the most stable bonds of Hg-ligands. Mercury concentrations were not correlated with organic matter content, both in soils and ashes. It was estimated that rainfall caused a loss of 1.0\u00a0g\u00a0Hg\u00a0ha\u2212\u00a01 from ashes and an uptake of 0.5\u00a0g\u00a0Hg\u00a0ha\u2212\u00a01 of soil washed out. The difference between the previous estimations, 0.5\u00a0g\u00a0Hg\u00a0ha\u2212\u00a01, corresponds to the quantity of Hg transported to the surrounding area or eventually introduced into aquatic systems. Hence, the results obtained in the present study highlight the importance of wildfire and subsequent rainfall in the mobilisation of Hg in the environment.", "keywords": ["Mercury pathway", "Portugal", "Runoff", "13. Climate action", "Wildfire", "15. Life on land", "01 natural sciences", "Earth-Surface Processes", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.catena.2015.02.024"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/CATENA", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.catena.2015.02.024", "name": "item", "description": "10.1016/j.catena.2015.02.024", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.catena.2015.02.024"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-08-01T00:00:00Z"}}, {"id": "10.1016/j.still.2006.08.005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:00Z", "type": "Journal Article", "created": "2006-09-19", "title": "No-Till Effects On Organic Matter, Ph, Cation Exchange Capacity And Nutrient Distribution In A Luvisol In The Semi-Arid Subtropics", "description": "No-till (NT) system for grain cropping is increasingly being practised in Australia. While benefits of NT, accompanied by stubble retention, are almost universal for soil erosion control, effects on soil organic matter and other soil properties are inconsistent, especially in a semi-arid, subtropical environment. We examined the effects of tillage, stubble and fertilizer management on the distribution of organic matter and nutrients in the topsoil (0\u201030 cm) of a Luvisol in a semi-arid, subtropical environment in southern Queensland, Australia. Measurements were made at the end of 9 years of NT, reduced till (RT) and conventional till (CT) practices, in combination with stubble retention and fertilizer N (as urea) application strategies for wheat (Triticum aestivum L.) cropping. In the top 30 cm depth, the mean amount of organic C increased slightly after 9 years, although it was similar under all tillage practices, while the amount of total N declined under CTand RT practices, but not under NT. In the 0\u201010 cm depth, the amounts of organicC and total N were significantly greater under NT than under RTor CT. No-till had 1.94 Mg ha 1 (18%) more organicC and 0.20 Mg ha 1 (21%) more total N than CT. In the 0\u201030 cm depth, soil under NT practice had 290 kg N ha 1 more than that under the CT practice, most of it in the top 10 cm depth. Microbial biomass N was similar for all treatments. Under NT, there was a concentration gradient in organic C, total N and microbial biomass N, with concentrations decreasing from 0\u20102.5 to 5\u201010 cm depths. SoilpHwasnotaffectedbytillageorstubbletreatmentsinthe0\u201010 cmdepth,butdecreasedsignificantlyfrom7.5to7.2withN fertilizer application. Exchangeable Mg and Na concentration, cation exchange capacity and exchangeable Na percentage in the 0\u201010 cmdepthweregreaterunderCTthanunderRTandNT,whileexchangeableKandbicarbonate-extractablePconcentrations were greater under NT than under CT. Therefore, NTand RT practices resulted in significant changes in soil organic C and N and exchangeable cations in the topsoil of a Luvisol, when compared with CT. The greater organic matter accumulation close to the soil surface and solute movement in these soils under NT practice would be beneficial to soil chemical and physical status and crop production in the long-term, whereas the concentration of nutrients such as P and K in surface layers may reduce their availability to crops. # 2006 Elsevier B.V. All rights reserved.", "keywords": ["2. Zero hunger", "550", "pH", "1904 Earth-Surface Processes", "Luvisol", "No-till", "04 agricultural and veterinary sciences", "Total nitrogen", "15. Life on land", "01 natural sciences", "630", "6. Clean water", "Cations", "0401 agriculture", " forestry", " and fisheries", "1102 Agronomy and Crop Science", "Organic carbon", "1111 Soil Science", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2006.08.005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2006.08.005", "name": "item", "description": "10.1016/j.still.2006.08.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2006.08.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-06-01T00:00:00Z"}}, {"id": "10.1016/j.still.2005.11.005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:59Z", "type": "Journal Article", "created": "2005-12-22", "title": "Carbon Inventory For A Cereal Cropping System Under Contrasting Tillage, Nitrogen Fertilisation And Stubble Management Practices", "description": "Abstract Conservation farming practices are often considered effective measures to increase soil organic C (SOC) sequestration and/or to reduce CO 2 emissions resulting from farm machinery operation. The long-term CO 2 mitigation potentials of no-till (NT) versus conventional till (CT), stubble retention (SR) versus stubble burning (SB) and N fertilisation (NF) versus no N application (N0) as well as their interactions were examined on a Vertosol (Vertisol) in semi-arid subtropical Queensland, Australia by taking into account their impacts on SOC content, crop residue C storage, on-farm fossil fuel consumption and CO 2 emissions associated with N fertiliser application. The experimental site had been cropped with wheat ( Triticum aestivum L.) or barley ( Hordeum vulgare L.) with a summer fallow for 33 years. Where NT, SR or NF was applied alone, no significant effect on SOC was found in the 0\u201310, 10\u201320 and 0\u201320\u00a0cm depths. Nonetheless, the treatment effects in the 0\u201310\u00a0cm depth were interactive and maximum SOC sequestration was achieved under the NT\u00a0+\u00a0SR\u00a0+\u00a0NF treatment. Carbon storage in crop residues decreased substantially during the fallow period, to a range between 0.4\u00a0Mg\u00a0CO 2 -e\u00a0ha \u22121 under the CT\u00a0+\u00a0SB\u00a0+\u00a0NF treatment and 2.4\u00a0Mg\u00a0CO 2 -e\u00a0ha \u22121 under the NT\u00a0+\u00a0SR\u00a0+\u00a0N0 treatment (CO 2 -e stands for CO 2 equivalent). The cumulative fossil fuel CO 2 emission over 33 years was estimated to be 2.2\u00a0Mg\u00a0CO 2 -e\u00a0ha \u22121 less under NT than under CT systems. Cumulative CO 2 emissions from N fertiliser application amounted to 3.0\u00a0Mg\u00a0CO 2 \u00a0ha \u22121 . The farm-level C accounting indicated that a net C sequestration of 4.5\u00a0Mg\u00a0CO 2 -e was achieved under the NT\u00a0+\u00a0SR\u00a0+\u00a0NF treatment, whilst net CO 2 emissions ranging from 0.5 to 6.0\u00a0Mg\u00a0CO 2 -e\u00a0ha \u22121 over 33 years occurred under other treatments.", "keywords": ["Carbon sequestration", "2. Zero hunger", "571", "550", "Greenhouse", "Nitrogen", "1904 Earth-Surface Processes", "No-till", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Carbon", "Stubble retention", "Tillage", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "1102 Agronomy and Crop Science", "Global change", "1111 Soil Science", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2005.11.005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2005.11.005", "name": "item", "description": "10.1016/j.still.2005.11.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2005.11.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-12-01T00:00:00Z"}}, {"id": "10.1016/j.still.2008.10.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:01Z", "type": "Journal Article", "created": "2008-12-07", "title": "Controlled Traffic Farming With No Tillage For Improved Fallow Water Storage And Crop Yield On The Chinese Loess Plateau", "description": "On the semi-arid Loess Plateau of northern China, water is typically the biggest constraint to rainfed wheat production. Controlled traffic, combined with zero tillage and residue cover has been proposed to improve soil water, crop yield and water use efficiency. From 1998 to 2005, we conducted a field experiment comparing the water storage and wheat productivity of controlled traffic farming and conventional tillage farming. Three treatments were studied: controlled traffic with no tillage and full residue cover (NTCN), controlled traffic with shallow tillage and full residue cover (STCN) and random traffic with traditional tillage and partial residue cover (CT). Compared to CT, the controlled traffic treatments significantly reduced soil bulk density in 10-20 cm soil layer, significantly increased soil water content in the 0-150 cm soil profile at sowing, 9.3% for NTCN, 9.6% for STCN. These effects were greater in dry seasons, thus reducing the yearly variation in water conservation. Consequently, mean wheat yield of NTCN, STCN and CT were 3.25, 3.27 and 3.05 t ha-1, respectively, in which controlled traffic treatments increased by 6.9% with less yearly variation, compared to traditional tillage. Furthermore, controlled traffic had greater economic benefits than conventional tillage. Within controlled traffic treatments, NTCN showed better overall performance. In conclusion, controlled traffic farming has a better performance with respect to conserving water, improves yields and increases economic benefits. No tillage controlled traffic farming appears to be a solution to the water problem facing farmers on the Loess Plateau of China.", "keywords": ["macropore density", "0106 biological sciences", "2. Zero hunger", "Yields", "bulk density", "571", "available water capacity", "Fallow water storage", "1904 Earth-Surface Processes", "permanent beds", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "Zero tillage", "Vertosol", "Controlled traffic", "controlled traffic", "0401 agriculture", " forestry", " and fisheries", "compaction", "1102 Agronomy and Crop Science", "amelioration", "zero tillage", "1111 Soil Science"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2008.10.012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2008.10.012", "name": "item", "description": "10.1016/j.still.2008.10.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2008.10.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-06-01T00:00:00Z"}}, {"id": "10.1016/j.still.2010.10.009", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:03Z", "type": "Journal Article", "created": "2010-11-20", "title": "Soil Organic Matter Humification Under Different Tillage Managements Evaluated By Laser Induced Fluorescence (Lif) And C/N Ratio", "description": "AbstractIn this work is presented the use of the C/N ratio and the Laser Induced Fluorescence (LIF) spectroscopy for determining the humification of soil organic matter (SOM) in an Oxisol under three different long-term tillage managements (no-tillage (NT), reduced tillage (RT) and conventional tillage (CT)). Humification of SOM was evaluated in the soil and its fractions (clay<2\u03bcm, silt 2\u201320\u03bcm, sand 20\u20131000\u03bcm). The obtained results show that lower SOM humification was observed in soil under NT, mainly at the surface (0\u20135cm). In CT, SOM humification values maintained constant for all investigated depths (0\u20135, 5\u201310, 10\u201315 and 15\u201320cm). Also, clay was the soil fraction that exhibited the lesser humification of SOM. Based on the obtained results it can be said that NT favors the accumulation of SOM on its surface, increasing aggregate stability and presenting samples with lower humification indexes. These results indicate a larger availability of nutrients for the plants in this management.", "keywords": ["Degree of humification", "No-tillage management system", "Soil fractions", "Soil Science", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Agronomy and Crop Science", "6. Clean water", "Earth-Surface Processes"], "contacts": [{"organization": "Jadir Aparecido Rosa, Luiz F. Pires, F.A.M. C\u00e1ssaro, S\u00e9rgio da Costa Saab, Andr\u00e9 Maur\u00edcio Brinatti, T. Martins, D\u00e9bora Marcondes Bastos Pereira Milori,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.still.2010.10.009"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2010.10.009", "name": "item", "description": "10.1016/j.still.2010.10.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2010.10.009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-01-01T00:00:00Z"}}, {"id": "10.1016/j.still.2010.12.006", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:03Z", "type": "Journal Article", "created": "2011-01-18", "title": "Organic Carbon And Total Nitrogen Stocks In A Vertisol Following 40 Years Of No-Tillage, Crop Residue Retention And Nitrogen Fertilisation", "description": "Abstract Conservation agricultural practices such as no-till (NT) and crop residue retention (CRR), and nutrient application, increases soil organic C (SOC) and are considered effective measures of C sequestration in soil. However, long-term effects of individual components of conservation agriculture and their interactions on SOC are rarely evaluated; as a result, conflicting findings of these practices on SOC are reported in the literature. We measured SOC and soil total N in a balanced factorial experiment, conducted on a Vertisol, consisting of tillage practices (conventional mechanical tillage, CT; and no-tillage, NT), crop residue management (crop residue burned, CRB; and crop residue retained, CRR) and N fertiliser application (no N, 30\u00a0kg\u00a0N\u00a0ha \u22121 \u00a0year \u22121 ; and 90\u00a0kg\u00a0N\u00a0ha \u22121 \u00a0year \u22121 ). The site, in a semiarid subtropical region, was cropped with wheat ( Triticum aestivum L.) except for 3 years of barley ( Hordeum vulgare L.), for 40 years using conservation practices. In general, tillage effects on SOC and soil total N were small. Crop residue and N fertiliser interactively increased SOC and total N stocks at 0\u20130.1\u00a0m depth and cumulative stocks at 0\u20130.2\u00a0m and 0\u20130.3\u00a0m depths; that is, CRR increased SOC and soil total N only when N fertiliser was applied, and fertilisation increased SOC and soil total N only under CRR treatment. Depletion of \u03b4 13 C values in CRR treatments and \u03b4 15 N values in N treatments strongly indicated the contribution of crop residue (and root biomass) and N fertiliser to soil organic matter in this Vertisol. From this study and previous findings from this site, it appears, however, the effects of crop residue retention and N fertiliser occurred in early years, and did not continually increase SOC and total soil N with increasing period of conservation practices.", "keywords": ["2. Zero hunger", "Soil organic matter", "Agricultural", "Nitrogen", "1904 Earth-Surface Processes", "No-till", "04 agricultural and veterinary sciences", "15. Life on land", "Carbon", "630", "Land capability and soil productivity", "Environmental sciences", "Biological sciences", "veterinary and food sciences", "0401 agriculture", " forestry", " and fisheries", "1102 Agronomy and Crop Science", "1111 Soil Science"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2010.12.006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2010.12.006", "name": "item", "description": "10.1016/j.still.2010.12.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2010.12.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-04-01T00:00:00Z"}}, {"id": "10.1016/j.still.2015.03.005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:05Z", "type": "Journal Article", "created": "2015-03-13", "title": "Corn Residue, Tillage, And Nitrogen Rate Effects On Soil Properties", "description": "A B S T R A C T Harvesting corn (Zea mays L.) residue for use as a biofuel feedstock may alter important chemical and physical properties of soils. Long-term residue removal, linked with tillage and fertilizer practices, could lower soil organic carbon (SOC), as well as increase soil compaction and susceptibility to erosion. A study initiated in 2006 included three levels of residue removal (none, partial, or full removal), two tillage treatments (no-till or chisel plow), and two N application rates (134 and 268 kg N/ha). These experiments were established in continuous corn (CC) at four Illinois sites, with treatments remaining in the same plots each year. In the spring at the beginning of the eighth growing season, we measured total carbon stocks (SOC), water aggregate stability (WAS), soil bulk density (BD), and penetration resistance (PR). Results showed that with all crop residue retained in the field, SOC stocks 13% lower under chisel tillage than in no-tilled plots, but removal of some or all of the residue lowered the SOC levels of no-tilled plots to those of tilled plots. On average for the studied depths, no-till plots had 5% and 39% higher BD and PR, respectively, than tilled plots, and residue removal significantly increased PR under no-till. Regardless of tillage treatment, the highest WAS values were found without residue removal at the lower N rate and with partial removal at the higher N rate. The higher N rate slightly lowered the BD under partial removal of residue for both tillage treatments at both studied depths. Our results indicate that residue harvest generates modest changes in soil properties under continuous corn, likely smaller than the effects of tillage and N fertilizer use in these systems. But as long as residue amount and tillage practices are sufficient to limit losses of soil by erosion to acceptable levels, we believe that corn residue represents a viable feedstock for a sustainable bioenergy industry in the U.S. Midwest.", "keywords": ["2. Zero hunger", "Soil Science", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Agronomy and Crop Science", "Earth-Surface Processes"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2015.03.005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2015.03.005", "name": "item", "description": "10.1016/j.still.2015.03.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2015.03.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-08-01T00:00:00Z"}}, {"id": "10.1016/j.still.2016.08.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:06Z", "type": "Journal Article", "created": "2016-08-23", "title": "Aggregate Size Distribution In A Biochar-Amended Tropical Ultisol Under Conventional Hand-Hoe Tillage", "description": "Biochar (or pyrogenic organic matter) is increasingly proposed as a soil amendment for improving fertility, carbon sequestration and reduction of greenhouse gas emissions. However, little is known about its effects on aggregation, an important indicator of soil quality and functioning. The aim of this study was to assess the effect of Eucalyptus wood biochar (B, pyrolyzed at 550\u00a0\u00b0C, at 0 or 2.5\u00a0t\u00a0ha-1), green manure (T, from Tithonia diversifolia at 0, 2.5 or 5.0\u00a0t\u00a0ha-1) and mineral nitrogen (U, urea, at 0, or 120\u00a0kg\u00a0N\u00a0ha-1) on soil respiration, aggregate size distribution and SOC in these aggregate size fractions in a 2-year field experiment on a low-fertility Ultisol in western Kenya under conventional hand-hoe tillage. Air-dry 2-mm sieved soils were divided into four fractions by wet sieving: Large Macro-aggregates (LM; >1000\u00a0\u03bcm); Small Macro-aggregates (SM, 250-1000\u00a0\u03bcm); Micro-aggregates (M, 250-53\u00a0\u03bcm) and Silt\u00a0+\u00a0Clay (S\u00a0+\u00a0C,\u2009<\u00a053\u00a0\u03bcm). We found that biochar alone did not affect a mean weight diameter (MWD) but combined application with either T. diversifolia (BT) or urea (BU) increased MWD by 34\u00a0\u00b1\u00a05.2\u00a0\u03bcm (8%) and 55\u00a0\u00b1\u00a05.4\u00a0\u03bcm (13%), respectively, compared to the control (P\u00a0=\u00a00.023; n\u00a0=\u00a036). The B\u00a0+\u00a0T\u00a0+\u00a0U combination increased the proportion of the LM and SM by 7.0\u00a0\u00b1\u00a00.8%, but reduced the S\u00a0+\u00a0C fraction by 5.2\u00a0\u00b1\u00a00.23%. SOC was 30%, 25% and 23% in S\u00a0+\u00a0C,\u00a0M and LM/SM fractions, and increased by 9.6\u00a0\u00b1\u00a01.0, 5.7\u00a0\u00b1\u00a00.8, 6.3\u00a0\u00b1\u00a01.1 and 4.2\u00a0\u00b1\u00a00.9\u00a0g\u00a0kg-1 for LM, SM, M and S\u00a0+\u00a0C, respectively. MWD was not related to either soil respiration or soil moisture but decreased with higher SOC (R2 \u00a0=\u00a00.37, P\u00a0=\u00a00.014, n\u00a0=\u00a026) and increased with greater biomass production (R2 \u00a0=\u00a00.11, P\u00a0=\u00a00.045, n\u00a0=\u00a033). Our data suggest that within the timeframe of the study, biochar is stored predominantly as free particulate OC in the silt and clay fraction and promoted a movement of native SOC from larger-size aggregates to the smaller-sized fraction in the short-term (2 years).", "keywords": ["2. Zero hunger", "Soil organic carbon", "Soil Science", "Soil respiration", "04 agricultural and veterinary sciences", "15. Life on land", "Hand-hoe tillage", "Article", "6. Clean water", "Biochar", "13. Climate action", "Soil aggregation", "Ultisol", "0401 agriculture", " forestry", " and fisheries", "Agronomy and Crop Science", "Earth-Surface Processes"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2016.08.012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2016.08.012", "name": "item", "description": "10.1016/j.still.2016.08.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2016.08.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.1029/2018JE005899", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:25Z", "type": "Journal Article", "created": "2020-03-09", "title": "Initiation and Flow Conditions of Contemporary Flows in Martian Gullies", "description": "

&lt;p&gt;Understanding the initial and flow conditions of contemporary flows in Martian gullies, generally believed to be triggered and fluidized by CO&lt;sub&gt;2&lt;/sub&gt; sublimation, is crucial for deciphering climate conditions needed to trigger and sustain them. We employ the RAMMS (RApid Mass Movement Simulation) debris flow and avalanche model to back-calculate initial and flow conditions of recent flows in three gullies in Hale crater. We infer minimum release depths of 1.0&amp;#8211;1.5 m and initial release volumes of 100&amp;#8211;200 m&lt;sup&gt;3&lt;/sup&gt;. Entrainment leads to final flow volumes that are 2.5&amp;#8211;5.5 times larger than initially released, and entrainment is found necessary to match the observed flow deposits. Simulated mean cross-channel flow velocities decrease from 3&amp;#8211;4 m s&lt;sup&gt;-1&lt;/sup&gt; to ~1 m s&lt;sup&gt;-1&lt;/sup&gt; from release area to flow terminus, while flow depths generally decrease from 0.5&amp;#8211;1 m to 0.1&amp;#8211;0.2 m. The mean cross-channel erosion depth and deposition thicknesses are _0.1&amp;#8211;0.3 m. Back-calculated dry-Coulomb friction ranges from 0.1 to 0.25 and viscous turbulent friction between 100&amp;#8211;200 m s&lt;sup&gt;-2&lt;/sup&gt;, which are values similar to those of granular debris flows on Earth. These results suggest that recent flows in gullies are fluidized to a similar degree as are granular debris flows on Earth. Using a novel model for mass-flow fluidization by CO&lt;sub&gt;2&lt;/sub&gt; sublimation we are able to show that under Martian atmospheric conditions very small volumetric fractions of CO&lt;sub&gt;2&lt;/sub&gt; of ~1% within mass flows may indeed yield sufficiently large gas fluxes to cause fluidization and enhance flow mobility.&lt;/p&gt;

", "keywords": ["Atmospheric Science", "550", "[SDU.STU.GM] Sciences of the Universe [physics]/Earth Sciences/Geomorphology", "0211 other engineering and technologies", "Soil Science", "Mars", "Hale crater", "02 engineering and technology", "Aquatic Science", "carbon dioxide; gullies; Hale crater; Mars; modeling; RAMMS", "551", "Oceanography", "01 natural sciences", "[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology", "Geochemistry and Petrology", "Earth and Planetary Sciences (miscellaneous)", "SDG 13 - Climate Action", "Research Articles", "Water Science and Technology", "Earth-Surface Processes", "0105 earth and related environmental sciences", "Ecology", "Palaeontology", "carbon dioxide", "Forestry", "modeling", "RAMMS", "Geophysics", "Space and Planetary Science", "13. Climate action", "[SDU.STU.PL] Sciences of the Universe [physics]/Earth Sciences/Planetology", "gullies"]}, "links": [{"href": "http://dro.dur.ac.uk/28802/1/28802.pdf"}, {"href": "http://dro.dur.ac.uk/28802/2/28802.pdf"}, {"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2018JE005899"}, {"href": "https://doi.org/10.1029/2018JE005899"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Planets", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2018JE005899", "name": "item", "description": "10.1029/2018JE005899", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2018JE005899"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-01T00:00:00Z"}}, {"id": "10.1071/sr04044", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:49Z", "type": "Journal Article", "created": "2005-02-17", "title": "Total Soil Organic Matter And Its Labile Pools Following Mulga (Acacia Aneura) Clearing For Pasture Development And Cropping 1. Total And Labile Carbon", "description": "

Mulga (Acacia aneura) dominated vegetation originally occupied 11.2 Mha in Queensland, of which 12% has been cleared, mostly for pasture production, but some areas are also used for cereal cropping. Since mulga communities generally occupy fragile soils, mostly Kandosols and Tenosols, in semi-arid environments, clearing of mulga, which continues at a rate of at least 35 000 ha/year in Queensland, has considerable impact on soil organic carbon (C), and may also have implications for the greenhouse gas emissions associated with land use change in Australia. We report here the changes in soil C and labile C pools following mulga clearing to buffel pasture (Cenchrus ciliaris) and cereal (mostly wheat) cropping for 20 years in a study using paired sites. Soil organic C in the top 0.05 m of soil declined by 31% and 35% under buffel pasture and cropping, respectively. Land use change from mulga to buffel and cropping led to declines in soil organic C of 2.4 and 4.7 t/ha, respectively, from the top 0.3 m of soil. Using changes in the \uffce\uffb413C values of soil organic C as an approximate representation of C derived from C3 and C4 vegetation from mulga and buffel, respectively, up to 31% of soil C was C4-derived after 20 years of buffel pasture. The turnover rates of mulga-derived soil C ranged from 0.035/year in the 0\uffe2\uff80\uff930.05 m depth to 0.008/year in the 0.6\uffe2\uff80\uff931 m depths, with respective turnover times of 29 and 133 years. Soil organic matter quality, as measured by the proportion/amount of labile fraction C (light fraction, < 1.6 t/m3) declined by 55% throughout the soil profile (0\uffe2\uff80\uff931 m depth) under both pasture and cropping. There is immediate concern for the long-term sustainable use of land where mulga has been cleared for pasture and/or cropping with a continuing decline in soil organic matter quality and, hence, soil fertility and biomass productivity. In addition, the removal of mulga forest over a 20-year period in Queensland for pasture and cropping may have contributed to the atmosphere at least 12 Mt CO2-equivalents.

", "keywords": ["2. Zero hunger", "13. Climate action", "1904 Earth-Surface Processes", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Greenhouse effect", "\u03b4C", "Labile C", "Organic matter quality", "Soil C loss", "1111 Soil Science", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1071/sr04044"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1071/sr04044", "name": "item", "description": "10.1071/sr04044", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1071/sr04044"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-01-01T00:00:00Z"}}, {"id": "10.1071/sr12225", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:50Z", "type": "Journal Article", "created": "2013-02-19", "title": "Organic Carbon Stocks In Cropping Soils Of Queensland, Australia, As Affected By Tillage Management, Climate, And Soil Characteristics", "description": "

Research both nationally and internationally has indicated that no-till (NT) management used in combination with stubble retention has the potential to increase soil organic carbon (SOC) stocks in cropping soils relative to conventional tillage (CT). However, rates of SOC increase can vary depending on cropping system, climate, and soil type, making the quantification of carbon change difficult on a regional level. Various long-term trials and commercial sites throughout Queensland were used to compare rates of SOC change under CT and NT management in cropping soils, and to determine how climate and soil type interact to influence rates of change. It was observed that NT management was not capable of increasing SOC stocks under the crop\uffe2\uff80\uff93fallow rotation systems practised throughout Queensland, and was unlikely even to hold SOC stocks steady under current management practices. However, SOC losses under NT systems did appear to be slower than under CT, indicating that NT may slow SOC loss following a period of organic carbon input, for example, from a pasture ley. On a regional scale, biomass production (estimated through remote sensing), climate (specifically the vapour pressure deficit), and soil sand content could be used to adequately predict SOC stocks on commercial sites, indicating the importance of considering these factors when assessing SOC stocks following management change across the region.

", "keywords": ["2. Zero hunger", "550", "Climate", "1904 Earth-Surface Processes", "2301 Environmental Science (miscellaneous)", "No-till", "04 agricultural and veterinary sciences", "15. Life on land", "Organic carbon stocks", "Stubble retention", "Vapour pressure deficit", "0401 agriculture", " forestry", " and fisheries", "1111 Soil Science", "Sand content"]}, "links": [{"href": "https://doi.org/10.1071/sr12225"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1071/sr12225", "name": "item", "description": "10.1071/sr12225", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1071/sr12225"}, {"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": "10.1071/sr18210", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:51Z", "type": "Journal Article", "created": "2018-11-16", "title": "Effect of long-term irrigation and tillage practices on X-ray CT and gas transport derived pore-network characteristics", "description": "

The gas transport parameters, diffusivity and air-filled porosity are crucial for soil aeration, microbial activity and greenhouse gas emission, and directly depend on soil structure. In this study, we analysed the effect of long-term tillage and irrigation practices on the surface structure of an arable soil in New Zealand. Our hypothesis was that topsoil structure would change under intensification of arable production, affecting gas exchange. Intact soil cores were collected from plots under intensive tillage (IT) and direct drill (DD), irrigated or rainfed. In total, 32 cores were scanned by X-ray computed tomography (CT) to derive the pore network &gt;30\u00b5m. The cores were then used to measure soil-gas diffusivity, air-permeability and air-filled porosity of pores close to the resolution of the X-ray CT scans, namely \u226530\u00b5m. The gas measurements allow the calculation of pore-network connectivity and tortuosity parameters, which were compared with the CT-derived structural characteristics. Long-term irrigation had little effect on any of the parameters analysed. Total porosity tended to be lower under IT than DD, whereas the CT-derived porosity was comparable. Both the CT-derived mean pore diameter (MPD) and other morphological parameters, as well as gas measurement-derived parameters, highlighted a less developed structure under IT. The differences in the functional pore-network structure were attributed to SOC depletion and the mechanical disturbance through IT. Significant correlations between CT-derived parameters and functional gas transport parameters such as tortuosity and MPD were found, which suggest that X-ray CT could be useful in the prediction of gas transport.

", "keywords": ["AGRICULTURE", "soil structure.", "P-parameter", "Soil structure", "carbon depletion", "MANAGEMENT", "COMPUTED-TOMOGRAPHY", "PERMEABILITY", "CONSERVATION TILLAGE", "Dexter index", "Intensive tillage", "SOIL ORGANIC-CARBON", "carbon depletion; Dexter index; intensive tillage; P -parameter; soil organic carbon; soil structure.; Environmental Science (miscellaneous); Soil Science; Earth-Surface Processes", "P -parameter", "LOAM SOIL", "Soil organic carbon", "POROSITY", "04 agricultural and veterinary sciences", "15. Life on land", "soil organic carbon", "NO-TILL", "NITROGEN", "[SDE.MCG] Environmental Sciences/Global Changes", "0401 agriculture", " forestry", " and fisheries", "Carbon depletion", "soil structure", "intensive tillage"]}, "links": [{"href": "https://www.publish.csiro.au/SR/pdf/SR18210"}, {"href": "https://doi.org/10.1071/sr18210"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1071/sr18210", "name": "item", "description": "10.1071/sr18210", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1071/sr18210"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-01T00:00:00Z"}}, {"id": "10.1177/09596836211025973", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:00Z", "type": "Journal Article", "created": "2021-06-29", "title": "Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden", "description": "

Diatom-rich sediment in a small subarctic lake (Lake 850) was investigated in a 9400\uffe2\uff80\uff89cal.\uffe2\uff80\uff89yr\uffe2\uff80\uff89BP sediment record in order to explore the impact of Holocene climate evolution on silicon cycling. Diatom stable silicon isotopes ([Formula: see text]) and biogenic silica (BSi) indicate that high BSi concentrations in sediment throughout the Holocene are associated with a lighter Si isotope source of dissolved silica (DSi), such as groundwater or freshly weathered primary minerals. Furthermore, higher BSi concentrations were favoured during the mid-Holocene by low detrital inputs and possibly a longer ice-free period allowing for more diatom production to occur. The diatom [Formula: see text] signature shows a link to changes in regional climate and is influenced by length of diatom growth period and hydrological fluctuations. Lighter Si isotopic values occur during the mid-Holocene, when climate is inferred to be more continental and drier, with pronounced seasonality. In contrast, a heavier Si isotopic signature is observed in the early and late Holocene, when oceanic influences are thought to be stronger and the climate wetter. The [Formula: see text] values have generally lighter signatures as compared with other studies, which supports a light DSi source.

", "keywords": ["Global and Planetary Change", "Ecology", "Archaeology", "13. Climate action", "8. Economic growth", "Paleontology", "01 natural sciences", "Earth-Surface Processes", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://journals.sagepub.com/doi/pdf/10.1177/09596836211025973"}, {"href": "https://doi.org/10.1177/09596836211025973"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/The%20Holocene", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1177/09596836211025973", "name": "item", "description": "10.1177/09596836211025973", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1177/09596836211025973"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-29T00:00:00Z"}}, {"id": "10.5194/bg-14-1969-2017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:07Z", "type": "Journal Article", "created": "2016-11-28", "title": "Modelling sun-induced fluorescence and photosynthesis with a land surface model at local and regional scales in northern Europe", "description": "

Abstract. Recent satellite observations of sun-induced chlorophyll fluorescence (SIF) are thought to provide a large-scale proxy for gross primary production (GPP), thus providing a new way to assess the performance of land surface models (LSMs). In this study, we assessed how well SIF is able to predict GPP in the Fenno-Scandinavian region and what potential limitations for its application exist. We implemented a SIF model into the JSBACH LSM and used active leaf level chlorophyll fluorescence measurements (ChlF) to evaluate the performance of the SIF module at a coniferous forest at Hyyti\uffc3\uffa4l\uffc3\uffa4, Finland. We also compared simulated GPP and SIF at four Finnish micrometeorological flux measurement sites to observed GPP as well as to satellite observed SIF. Finally, we conducted a regional model simulation for the Fenno-Scandinavian region with JSBACH and compared the results to SIF retrievals from the GOME-2 (Global Ozone Monitoring Experiment-2) space-borne spectrometer and to observation-based regional GPP estimates. Both observations and simulations revealed that SIF can be used to estimate GPP at both site and regional scales. The GOME-2 based SIF was a better proxy for GPP than the remotely sensed fAPAR (fraction of absorbed photosynthetic active radiation by vegetation), even though high SIF values occurred during early spring at the northern latitudes, although these are not likely to be associated with photosynthesis.

", "keywords": ["EDDY COVARIANCE", "DATA ASSIMILATION SYSTEM", "FLUX MEASUREMENTS", "SCOTS PINE FOREST", "01 natural sciences", "7. Clean energy", "Ecology", " Evolution", " Behavior and Systematics; Earth-Surface Processes", "CO2 EXCHANGE", "PHOTOSYSTEM-II", "Life", "QH501-531", "QH540-549.5", "SDG 15 - Life on Land", "0105 earth and related environmental sciences", "QE1-996.5", "Ecology", "BOREAL CONIFEROUS FOREST", "BIOCHEMICAL-MODEL", "Forestry", "Geology", "15. Life on land", "TERRESTRIAL CHLOROPHYLL FLUORESCENCE", "Physical sciences", "Environmental sciences", "13. Climate action", "ITC-ISI-JOURNAL-ARTICLE", "ENERGY-BALANCE", "ITC-GOLD"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/585578/2/bg-14-1969-2017.pdf"}, {"href": "https://bg.copernicus.org/articles/14/1969/2017/bg-14-1969-2017.pdf"}, {"href": "https://doi.org/10.5194/bg-14-1969-2017"}, {"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-14-1969-2017", "name": "item", "description": "10.5194/bg-14-1969-2017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-14-1969-2017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-11-28T00:00:00Z"}}, {"id": "10.2136/sssaj2000.642754x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:50Z", "type": "Journal Article", "created": "2010-07-27", "title": "Response Of Surface Horizons In An Oak Forest To Prescribed Burning", "description": "

The reduction of forest floor ground cover and litter layers by prescribed fires may alter the morphology (field and micro) and physical properties of surface horizons. This study determined long\uffe2\uff80\uff90term (35 yr) changes in surface horizon bulk density, organic matter concentration and content, and morphology in response to periodic (5 yr) and annual (1 yr) prescribed fires. Soils were fine\uffe2\uff80\uff90silty, siliceous, thermic Glossic Fragiuldults, supporting mixed oak vegetation in middle Tennessee. Upper mineral soils (0\uffe2\uff80\uff90 to 2\uffe2\uff80\uff90cm and 0\uffe2\uff80\uff90 to 7.6\uffe2\uff80\uff90cm depths) were sampled and detailed field descriptions made. Periodic and control plots had a thin layer of Oi, Oe, and Oa horizons 5 yr after the 1993 burn, whereas on annual burn plots a 1\uffe2\uff80\uff90 to 2\uffe2\uff80\uff90cm charred layer was present. Significant reductions in organic matter concentration and mean thickness of the A horizon were found from burning (A horizons thicknesses were 6.4, 4.6, and 2.9 cm in control, periodic, and annual plots, respectively). Periodic burns did not significantly alter the organic matter and bulk density of the upper 7.6 cm of mineral soil; however, annual burns did result in significantly higher bulk densities (1.01, 1.07, and 1.29 Mg m\uffe2\uff88\uff923 in control, periodic, and annual plots, respectively) and lower organic matter concentrations and contents. Microscopic investigations confirmed that compaction was increased from annual burning. Thin sections also revealed that the granular structure of the A horizons in control and periodic plots resulted from bioterbation of macro and mesofauna, fungi, and roots. Long\uffe2\uff80\uff90term annual burning greatly affected surface soil properties, whereas periodic burning on a 5\uffe2\uff80\uff90yr cycle had only limited effects.

", "keywords": ["/dk/atira/pure/subjectarea/asjc/1100/1111", "name=Soil Science", "/dk/atira/pure/subjectarea/asjc/1900/1904", "name=Earth-Surface Processes", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"], "contacts": [{"organization": "Phillips, Debra, Foss, J.E., Buckner, E.R., Evans, R.M., FitzPatrick, E.A.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2136/sssaj2000.642754x"}, {"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/sssaj2000.642754x", "name": "item", "description": "10.2136/sssaj2000.642754x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj2000.642754x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2000-03-01T00:00:00Z"}}, {"id": "10.5194/bg-17-1033-2020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:07Z", "type": "Journal Article", "created": "2020-02-26", "title": "\"Estimating causal networks in biosphere\u2013atmosphere interaction with the PCMCI approach\"", "description": "

Abstract. The dynamics of biochemical processes in terrestrial ecosystems are tightly coupled to local meteorological conditions. Understanding these interactions is an essential prerequisite for predicting, e.g. the response of the terrestrial carbon cycle to climate change. However, many empirical studies in this field rely on correlative approaches and only very few studies apply causal discovery methods. Here we explore the potential for a recently proposed causal graph discovery algorithm to reconstruct the causal dependency structure underlying biosphere\uffe2\uff80\uff93atmosphere interactions. Using artificial time series with known dependencies that mimic real-world biosphere\uffe2\uff80\uff93atmosphere interactions we address the influence of non-stationarities, i.e. periodicity and heteroscedasticity, on the estimation of causal networks. We then investigate the interpretability of the method in two case studies. Firstly, we analyse three replicated eddy covariance datasets from a Mediterranean ecosystem. Secondly, we explore global Normalised Difference Vegetation Index time series (GIMMS\uffc2\uffa03g), along with gridded climate data to study large-scale climatic drivers of vegetation greenness. We compare the retrieved causal graphs to simple cross-correlation-based approaches to test whether causal graphs are considerably more informative. Overall, the results confirm the capacity of the causal discovery method to extract time-lagged linear dependencies under realistic settings. For example, we find a complete decoupling of the net ecosystem exchange from meteorological variability during summer in the Mediterranean ecosystem. However, cautious interpretations are needed, as the violation of the method's assumptions due to non-stationarities increases the likelihood to detect false links. Overall, estimating directed biosphere\uffe2\uff80\uff93atmosphere networks helps unravel complex multidirectional process interactions. Other than classical correlative approaches, our findings are constrained to a few meaningful sets of relations, which can be powerful insights for the evaluation of terrestrial ecosystem models.

", "keywords": ["Agriculture and Food Sciences", "PINE FOREST", "Evolution", "0207 environmental engineering", "02 engineering and technology", "01 natural sciences", "CO2 EXCHANGE", "Behavior and Systematics", "Life", "QH501-531", "BEECH FOREST", "QH540-549.5", "Earth-Surface Processes", "0105 earth and related environmental sciences", "QE1-996.5", "NET ECOSYSTEM EXCHANGE", "Ecology", "CARBON-DIOXIDE EXCHANGE", "SPRUCE FOREST", "Geology", "WATER-VAPOR FLUXES", "15. Life on land", "13. Climate action", "GRANGER-CAUSALITY", "INTERANNUAL VARIABILITY", "GAS-EXCHANGE"]}, "links": [{"href": "https://bg.copernicus.org/articles/17/1033/2020/bg-17-1033-2020.pdf"}, {"href": "https://doi.org/10.5194/bg-17-1033-2020"}, {"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-17-1033-2020", "name": "item", "description": "10.5194/bg-17-1033-2020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-17-1033-2020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-02-26T00:00:00Z"}}, {"id": "10.5194/bg-16-4851-2019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:07Z", "type": "Journal Article", "created": "2019-12-20", "title": "\"Global biosphere\u2013climate interaction: a causal appraisal of observations and models over multiple temporal scales\"", "description": "

Abstract. Improving the skill of Earth system models (ESMs) in representing climate\uffe2\uff80\uff93vegetation interactions is crucial to enhance our predictions of future climate and ecosystem functioning. Therefore, ESMs need to correctly simulate the impact of climate on vegetation, but likewise feedbacks of vegetation on climate must be adequately represented. However, model predictions at large spatial scales remain subjected to large uncertainties, mostly due to the lack of observational patterns to benchmark them. Here, the bidirectional nature of climate\uffe2\uff80\uff93vegetation interactions is explored across multiple temporal scales by adopting a spectral Granger causality framework that allows identification of potentially co-dependent variables. Results based on global and multi-decadal records of remotely sensed leaf area index (LAI) and observed atmospheric data show that the climate control on vegetation variability increases with longer temporal scales, being higher at inter-annual than multi-month scales. Globally, precipitation is the most dominant driver of vegetation at monthly scales, particularly in (semi-)arid regions. The seasonal LAI variability in energy-driven latitudes is mainly controlled by radiation, while air temperature controls vegetation growth and decay in high northern latitudes at inter-annual scales. These observational results are used as a benchmark to evaluate four ESM simulations from the Coupled Model Intercomparison Project Phase\uffc2\uffa05 (CMIP5). Findings indicate a tendency of ESMs to over-represent the climate control on LAI dynamics and a particular overestimation of the dominance of precipitation in arid and semi-arid regions at inter-annual scales. Analogously, CMIP5 models overestimate the control of air temperature on seasonal vegetation variability, especially in forested regions. Overall, climate impacts on LAI are found to be stronger than the feedbacks of LAI on climate in both observations and models; in other words, local climate variability leaves a larger imprint on temporal LAI dynamics than vice versa. Note however that while vegetation reacts directly to its local climate conditions, the spatially collocated character of the analysis does not allow for the identification of remote feedbacks, which might result in an underestimation of the biophysical effects of vegetation on climate. Nonetheless, the widespread effect of LAI variability on radiation, as observed over the northern latitudes due to albedo changes, is overestimated by the CMIP5 models. Overall, our experiments emphasise the potential of benchmarking the representation of particular interactions in online ESMs using causal statistics in combination with observational data, as opposed to the more conventional evaluation of the magnitude and dynamics of individual variables.

", "keywords": ["0301 basic medicine", "Evolution", "LAND-SURFACE MODELS", "01 natural sciences", "RECENT TRENDS", "03 medical and health sciences", "Behavior and Systematics", "Life", "QH501-531", "NET PRIMARY PRODUCTION", "QH540-549.5", "Earth-Surface Processes", "0105 earth and related environmental sciences", "QE1-996.5", "EARTH SYSTEM MODEL", "Ecology", "LEAF-AREA INDEX", "Biology and Life Sciences", "Geology", "15. Life on land", "DATA SETS", "13. Climate action", "Earth and Environmental Sciences", "FEEDBACKS", "CO2", "VEGETATION", "SENSITIVITY"]}, "links": [{"href": "https://bg.copernicus.org/articles/16/4851/2019/bg-16-4851-2019.pdf"}, {"href": "https://doi.org/10.5194/bg-16-4851-2019"}, {"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-16-4851-2019", "name": "item", "description": "10.5194/bg-16-4851-2019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-16-4851-2019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-12-20T00:00:00Z"}}, {"id": "10.5194/bg-18-2379-2021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:08Z", "type": "Journal Article", "created": "2021-04-16", "title": "Functional convergence of biosphere\u2013atmosphere interactions in response to meteorological conditions", "description": "

Abstract. Understanding the dependencies of the terrestrial carbon and water cycle with meteorological conditions is a prerequisite to anticipate their behaviour under climate change conditions. However, terrestrial ecosystems and the atmosphere interact via a multitude of variables across temporal and spatial scales. Additionally these interactions might differ among vegetation types or climatic regions. Today, novel algorithms aim to disentangle the causal structure behind such interactions from empirical data. The estimated causal structures can be interpreted as networks, where nodes represent relevant meteorological variables or land-surface fluxes and the links represent the dependencies among them (possibly including time lags and link strength). Here we derived causal networks for different seasons at 119\uffc2\uffa0eddy covariance flux tower observations in the FLUXNET network. We show that the networks of biosphere\uffe2\uff80\uff93atmosphere interactions are strongly shaped by meteorological conditions. For example, we find that temperate and high-latitude ecosystems during peak productivity exhibit biosphere\uffe2\uff80\uff93atmosphere interaction networks very similar to tropical forests. In times of anomalous conditions like droughts though, both ecosystems behave more like typical Mediterranean ecosystems during their dry season. Our results demonstrate that ecosystems from different climate zones or vegetation types have similar biosphere\uffe2\uff80\uff93atmosphere interactions if their meteorological conditions are similar. We anticipate our analysis to foster the use of network approaches, as they allow for a more comprehensive understanding of the state of ecosystem functioning. Long-term or even irreversible changes in network structure are rare and thus can be indicators of fundamental functional ecosystem shifts.

", "keywords": ["Evolution", "0207 environmental engineering", "02 engineering and technology", "01 natural sciences", "Behavior and Systematics", "Life", "QH501-531", "CARBON-DIOXIDE UPTAKE", "TERRESTRIAL BIOSPHERE", "QH540-549.5", "Earth-Surface Processes", "0105 earth and related environmental sciences", "climeate", "QE1-996.5", "NET ECOSYSTEM EXCHANGE", "Ecology", "TEMPERATE", "Geology", "WATER-VAPOR FLUXES", "15. Life on land", "13. Climate action", "Earth and Environmental Sciences", "BALANCE", "biosphere-atmosphere interaction", "SOIL CO2 EFFLUX", "SPRUCE FORESTS", "INTERANNUAL VARIABILITY", "SOUTHERN FINLAND"]}, "links": [{"href": "https://bg.copernicus.org/articles/18/2379/2021/bg-18-2379-2021.pdf"}, {"href": "https://doi.org/10.5194/bg-18-2379-2021"}, {"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-18-2379-2021", "name": "item", "description": "10.5194/bg-18-2379-2021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-18-2379-2021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-04-16T00:00:00Z"}}, {"id": "10.5194/bg-19-3505-2022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:08Z", "type": "Journal Article", "created": "2022-07-28", "title": "Reviews and syntheses: The promise of big diverse soil data, moving current practices towards future potential", "description": "

Abstract. In the age of big data, soil data are more available and richer than ever, but \u2013 outside of a few large soil survey resources \u2013 they remain largely unusable for informing soil management and understanding Earth system processes beyond the original study. Data science has promised a fully reusable research pipeline where data from past studies are used to contextualize new findings and reanalyzed for new insight. Yet synthesis projects encounter challenges at all steps of the data reuse pipeline, including unavailable data, labor-intensive transcription of datasets, incomplete metadata, and a lack of communication between collaborators. Here, using insights from a diversity of soil, data, and climate scientists, we summarize current practices in soil data synthesis across all stages of database creation: availability, input, harmonization, curation, and publication. We then suggest new soil-focused semantic tools to improve existing data pipelines, such as ontologies, vocabulary lists, and community practices. Our goal is to provide the soil data community with an overview of current practices in soil data and where we need to go to fully leverage big data to solve soil problems in the next century.

", "keywords": ["FOS: Computer and information sciences", "0301 basic medicine", "Data Sharing", "Information Systems and Management", "literature review", "1904 Earth-Surface Processes", "Social Sciences", "data set", "01 natural sciences", "Decision Sciences", "Data science", "Life", "QH501-531", "910 Geography & travel", "soil analysis", "database", "QH540-549.5", "2. Zero hunger", "QE1-996.5", "000", "Ecology", "communication", "Physics", "Earth", "Geology", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "World Wide Web", "10122 Institute of Geography", "soil survey", "Physical Sciences", "Data Reuse", "environment", "Information Systems", "Evolution", "future prospect", "Data management", "Data Sharing and Stewardship in Science", "Database", "Big data", "03 medical and health sciences", "Behavior and Systematics", "Data mining", "0105 earth and related environmental sciences", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "Management and Reproducibility of Scientific Workflows", "Metadata", "Data curation", "Atmosphere", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Acoustics", "15. Life on land", "Computer science", "1105 Ecology", " Evolution", " Behavior and Systematics", "Surface Processes", "Harmonization", "FOS: Biological sciences", "Computer Science", "Environmental Science", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "soil management", "Research Data", "Environmental DNA in Biodiversity Monitoring"]}, "links": [{"href": "https://doi.org/10.5194/bg-19-3505-2022"}, {"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-19-3505-2022", "name": "item", "description": "10.5194/bg-19-3505-2022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-19-3505-2022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-28T00:00:00Z"}}, {"id": "10.5194/bg-8-2341-2011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:10Z", "type": "Journal Article", "created": "2011-05-25", "title": "Nitrogen Enrichment Enhances The Dominance Of Grasses Over Forbs In A Temperate Steppe Ecosystem", "description": "

Abstract. Chinese grasslands are extensive natural ecosystems that comprise 40 % of the total land area of the country and are sensitive to N deposition. A field experiment with six N rates (0, 30, 60, 120, 240, and 480 kg N ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921) was conducted at Duolun, Inner Mongolia, during 2005 and 2010 to identify some effects of N addition on a temperature steppe ecosystem. The dominant plant species in the plots were divided into two categories, grasses and forbs, on the basis of species life forms. Enhanced N deposition, even as little as 30 kg N ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921 above ambient N deposition (16 kg N ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921), led to a decline in species richness. The cover of grasses increased with N addition rate but their species richness showed a weak change across N treatments. Both species richness and cover of forbs declined strongly with increasing N deposition as shown by linear regression analysis (p<0.05). Increasing N deposition elevated aboveground production of grasses but lowered aboveground biomass of forbs. Plant N concentration, plant \uffce\uffb415N and soil mineral N increased with N addition, showing positive relationships between plant \uffce\uffb415N and N concentration, soil mineral N and/or applied N rate. The cessation of N application in the 480 kg N ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921 treatment in 2009 and 2010 led to a slight recovery of the forb species richness relative to total cover and aboveground biomass, coinciding with reduced plant N concentration and soil mineral N. The results show that N deposition induced changes in soil N transformations and plant N assimilation that are key to changes in species composition and biomass accumulation in this temperate steppe ecosystem.

", "keywords": ["0106 biological sciences", "2. Zero hunger", "QE1-996.5", "Ecology", "/dk/atira/pure/subjectarea/asjc/1900/1904", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "14. Life underwater", "/dk/atira/pure/subjectarea/asjc/1100/1105", "Ecology", " Evolution", " Behavior and Systematics", "QH540-549.5", "Earth-Surface Processes"]}, "links": [{"href": "https://doi.org/10.5194/bg-8-2341-2011"}, {"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-8-2341-2011", "name": "item", "description": "10.5194/bg-8-2341-2011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-8-2341-2011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-05-25T00:00:00Z"}}, {"id": "10.60692/5feqz-9r143", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:26Z", "type": "Journal Article", "created": "2021-01-26", "title": "How much carbon can be added to soil by sorption?", "description": "Abstract

Quantifying the upper limit of stable soil carbon storage is essential for guiding policies to increase soil carbon storage. One pool of carbon considered particularly stable across climate zones and soil types is formed when dissolved organic carbon sorbs to minerals. We quantified, for the first time, the potential of mineral soils to sorb additional dissolved organic carbon (DOC) for six soil orders. We compiled 402 laboratory sorption experiments to estimate the additional DOC sorption potential, that is the potential of excess DOC sorption in addition to the existing background level already sorbed in each soil sample. We estimated this potential using gridded climate and soil geochemical variables within a machine learning model. We find that mid- and low-latitude soils and subsoils have a greater capacity to store DOC by sorption compared to high-latitude soils and topsoils. The global additional DOC sorption potential for six soil orders is estimated to be 107 $$ pm$$ \uffc2\uffb1 13 Pg C to 1\uffc2\uffa0m depth. If this potential was realized, it would represent a 7% increase in the existing total carbon stock.

The gas transport parameters, diffusivity and air-filled porosity are crucial for soil aeration, microbial activity and greenhouse gas emission, and directly depend on soil structure. In this study, we analysed the effect of long-term tillage and irrigation practices on the surface structure of an arable soil in New Zealand. Our hypothesis was that topsoil structure would change under intensification of arable production, affecting gas exchange. Intact soil cores were collected from plots under intensive tillage (IT) and direct drill (DD), irrigated or rainfed. In total, 32 cores were scanned by X-ray computed tomography (CT) to derive the pore network &gt;30 \u00b5m. The cores were then used to measure soil-gas diffusivity, air-permeability and air-filled porosity of pores close to the resolution of the X-ray CT scans, namely =30 \u00b5m. The gas measurements allow the calculation of pore-network connectivity and tortuosity parameters, which were compared with the CT-derived structural characteristics. Long-term irrigation had little effect on any of the parameters analysed. Total porosity tended to be lower under IT than DD, whereas the CT-derived porosity was comparable. Both the CT-derived mean pore diameter (MPD) and other morphological parameters, as well as gas measurement-derived parameters, highlighted a less developed structure under IT. The differences in the functional pore-network structure were attributed to SOC depletion and the mechanical disturbance through IT. Significant correlations between CT-derived parameters and functional gas transport parameters such as tortuosity and MPD were found, which suggest that X-ray CT could be useful in the prediction of gas transport.

", "keywords": ["AGRICULTURE", "soil structure.", "P-parameter", "Soil structure", "carbon depletion", "MANAGEMENT", "COMPUTED-TOMOGRAPHY", "PERMEABILITY", "CONSERVATION TILLAGE", "Dexter index", "Intensive tillage", "SOIL ORGANIC-CARBON", "carbon depletion; Dexter index; intensive tillage; P -parameter; soil organic carbon; soil structure.; Environmental Science (miscellaneous); Soil Science; Earth-Surface Processes", "P -parameter", "LOAM SOIL", "Soil organic carbon", "POROSITY", "04 agricultural and veterinary sciences", "15. Life on land", "soil organic carbon", "NO-TILL", "NITROGEN", "[SDE.MCG] Environmental Sciences/Global Changes", "0401 agriculture", " forestry", " and fisheries", "Carbon depletion", "soil structure", "intensive tillage"]}, "links": [{"href": "https://www.publish.csiro.au/SR/pdf/SR18210"}, {"href": "https://doi.org/11577/3291713"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11577/3291713", "name": "item", "description": "11577/3291713", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11577/3291713"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-11-16T00:00:00Z"}}, {"id": "20.500.11850/562259", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:24:29Z", "type": "Journal Article", "created": "2022-07-28", "title": "Reviews and syntheses: The promise of big diverse soil data, moving current practices towards future potential", "description": "

Abstract. In the age of big data, soil data are more available and richer than ever, but \u2013 outside of a few large soil survey resources \u2013 they remain largely unusable for informing soil management and understanding Earth system processes beyond the original study. Data science has promised a fully reusable research pipeline where data from past studies are used to contextualize new findings and reanalyzed for new insight. Yet synthesis projects encounter challenges at all steps of the data reuse pipeline, including unavailable data, labor-intensive transcription of datasets, incomplete metadata, and a lack of communication between collaborators. Here, using insights from a diversity of soil, data, and climate scientists, we summarize current practices in soil data synthesis across all stages of database creation: availability, input, harmonization, curation, and publication. We then suggest new soil-focused semantic tools to improve existing data pipelines, such as ontologies, vocabulary lists, and community practices. Our goal is to provide the soil data community with an overview of current practices in soil data and where we need to go to fully leverage big data to solve soil problems in the next century.

", "keywords": ["FOS: Computer and information sciences", "0301 basic medicine", "Data Sharing", "Information Systems and Management", "literature review", "1904 Earth-Surface Processes", "Social Sciences", "data set", "01 natural sciences", "Decision Sciences", "Data science", "Life", "QH501-531", "910 Geography & travel", "soil analysis", "database", "QH540-549.5", "2. Zero hunger", "QE1-996.5", "000", "Ecology", "communication", "Physics", "Earth", "Geology", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "World Wide Web", "10122 Institute of Geography", "soil survey", "Physical Sciences", "Data Reuse", "environment", "Information Systems", "Evolution", "future prospect", "Data management", "Data Sharing and Stewardship in Science", "Database", "Big data", "03 medical and health sciences", "Behavior and Systematics", "Data mining", "0105 earth and related environmental sciences", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "Management and Reproducibility of Scientific Workflows", "Metadata", "Data curation", "Atmosphere", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Acoustics", "15. Life on land", "Computer science", "1105 Ecology", " Evolution", " Behavior and Systematics", "Surface Processes", "Harmonization", "FOS: Biological sciences", "Computer Science", "Environmental Science", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "soil management", "Research Data", "Environmental DNA in Biodiversity Monitoring"]}, "links": [{"href": "https://doi.org/20.500.11850/562259"}, {"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": "20.500.11850/562259", "name": "item", "description": "20.500.11850/562259", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.11850/562259"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-28T00:00:00Z"}}, {"id": "2078.1/249649", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-24T16:24:35Z", "type": "Journal Article", "created": "2021-06-29", "title": "Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden", "description": "

Diatom-rich sediment in a small subarctic lake (Lake 850) was investigated in a 9400\u2009cal.\u2009yr\u2009BP sediment record in order to explore the impact of Holocene climate evolution on silicon cycling. Diatom stable silicon isotopes ([Formula: see text]) and biogenic silica (BSi) indicate that high BSi concentrations in sediment throughout the Holocene are associated with a lighter Si isotope source of dissolved silica (DSi), such as groundwater or freshly weathered primary minerals. Furthermore, higher BSi concentrations were favoured during the mid-Holocene by low detrital inputs and possibly a longer ice-free period allowing for more diatom production to occur. The diatom [Formula: see text] signature shows a link to changes in regional climate and is influenced by length of diatom growth period and hydrological fluctuations. Lighter Si isotopic values occur during the mid-Holocene, when climate is inferred to be more continental and drier, with pronounced seasonality. In contrast, a heavier Si isotopic signature is observed in the early and late Holocene, when oceanic influences are thought to be stronger and the climate wetter. The [Formula: see text] values have generally lighter signatures as compared with other studies, which supports a light DSi source.

", "keywords": ["Global and Planetary Change", "Ecology", "Archaeology", "13. Climate action", "8. Economic growth", "Paleontology", "01 natural sciences", "Earth-Surface Processes", "0105 earth and related environmental sciences"]}, "links": [{"href": "http://journals.sagepub.com/doi/pdf/10.1177/09596836211025973"}, {"href": "https://doi.org/2078.1/249649"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/The%20Holocene", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2078.1/249649", "name": "item", "description": "2078.1/249649", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2078.1/249649"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-29T00:00:00Z"}}, {"id": "3122165360", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:25:11Z", "type": "Journal Article", "created": "2021-01-26", "title": "How much carbon can be added to soil by sorption?", "description": "Abstract

Quantifying the upper limit of stable soil carbon storage is essential for guiding policies to increase soil carbon storage. One pool of carbon considered particularly stable across climate zones and soil types is formed when dissolved organic carbon sorbs to minerals. We quantified, for the first time, the potential of mineral soils to sorb additional dissolved organic carbon (DOC) for six soil orders. We compiled 402 laboratory sorption experiments to estimate the additional DOC sorption potential, that is the potential of excess DOC sorption in addition to the existing background level already sorbed in each soil sample. We estimated this potential using gridded climate and soil geochemical variables within a machine learning model. We find that mid- and low-latitude soils and subsoils have a greater capacity to store DOC by sorption compared to high-latitude soils and topsoils. The global additional DOC sorption potential for six soil orders is estimated to be 107 $$ pm$$ \uffc2\uffb1 13 Pg C to 1\uffc2\uffa0m depth. If this potential was realized, it would represent a 7% increase in the existing total carbon stock.