The expansion of tropical forest into savanna may potentially be a large carbon sink, but little is known about the patterns of carbon sequestration during transitional forest formation. Moreover, it is unclear how nutrient limitation, due to extended exposure to fire\uffe2\uff80\uff90driven nutrient losses, may constrain carbon accumulation. Here, we sampled plots that spanned a woody biomass gradient from savanna to transitional forest in response to differential fire protection in central Brazil. These plots were used to investigate how the process of transitional forest formation affects the size and distribution of carbon (C) and nitrogen (N) pools. This was paired with a detailed analysis of the nitrogen cycle to explore possible connections between carbon accumulation and nitrogen limitation. An analysis of carbon pools in the vegetation, upper soil, and litter shows that the transition from savanna to transitional forest can result in a fourfold increase in total carbon (from 43 to 179 Mg C/ha) with a doubling of carbon stocks in the litter and soil layers. Total nitrogen in the litter and soil layers increased with forest development in both the bulk (+68%) and plant\uffe2\uff80\uff90available (+150%) pools, with the most pronounced changes occurring in the upper layers. However, the analyses of nitrate concentrations, nitrate\uffe2\uff80\uff8a:\uffe2\uff80\uff8aammonium ratios, plant stoichiometry of carbon and nitrogen, and soil and foliar nitrogen isotope ratios suggest that a conservative nitrogen cycle persists throughout forest development, indicating that nitrogen remains in low supply relative to demand. Furthermore, the lack of variation in underlying soil type (>20 cm depth) suggests that the biogeochemical trends across the gradient are driven by vegetation. Our results provide evidence for high carbon sequestration potential with forest encroachment on savanna, but nitrogen limitation may play a large and persistent role in governing carbon sequestration in savannas or other equally fire\uffe2\uff80\uff90disturbed tropical landscapes. In turn, the link between forest development and nitrogen pool recovery creates a framework for evaluating potential positive feedbacks on savanna\uffe2\uff80\uff93forest boundaries.
", "keywords": ["2. Zero hunger", "0106 biological sciences", "Nitrogen", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "01 natural sciences", "Carbon", "Trees", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Brazil", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1890/13-0290.1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1890/13-0290.1", "name": "item", "description": "10.1890/13-0290.1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/13-0290.1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-02-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2014.04.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2014-05-04", "title": "Grazing Land Intensification Effects On Soil C Dynamics In Aggregate Size Fractions Of A Spodosol", "description": "Abstract Impacts of land intensification on soil organic carbon (SOC) responses are important components of sustainable management evaluation. Because of poor aggregation often associated with coarse-textured soils and the limited potential for chemical and physical protection of SOC, we hypothesized that the fine aggregate fraction (", "keywords": ["0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2014.04.012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2014.04.012", "name": "item", "description": "10.1016/j.geoderma.2014.04.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2014.04.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-10-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2014.06.021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2014-06-26", "title": "Converting Leguminous Green Manure Into Biochar: Changes In Chemical Composition And C And N Mineralization", "description": "Leguminous green manure is an important source of nitrogen (N) and carbon (C) in cropping systems. The fast turnover of leguminous green manure enables it to release N quickly, but limits its effectiveness in maintaining soil organic C content. Converting leguminous green manure into biochar facilitates its use as a soil amendment. In this study, we assessed how the conversion of leguminous green manure (Sesbania roxburghii) into biochar altered its chemical composition and subsequent C and N mineralization. Biomass was charred along a temperature gradient from 200 to 500\u00a0\u00b0C. Using nuclear magnetic resonance and near-edge X-ray adsorption fine structure spectroscopy, we found that both C and N became enriched in aromatic and heterocyclic aromatic structures in biochar, and this structural change led to a reduction in C and N mineralization rates. The mineralized C decreased from 32.7% of the added C of raw biomass to <\u00a00.5% of that of biochar at charring temperatures above 400\u00a0\u00b0C. N release shifted from N mineralization in raw biomass to N immobilization at charring temperatures at 500\u00a0\u00b0C. As such, soil amended with biochar produced at charring temperatures exceeding 400\u00a0\u00b0C demonstrated a 25% decrease in dry shoot biomass compared with unamended soil. The results indicated that the C stability of leguminous green manure can be achieved by converting raw material into biochar, but that the charring process may limit it to providing N.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences", "3. Good health"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2014.06.021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2014.06.021", "name": "item", "description": "10.1016/j.geoderma.2014.06.021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2014.06.021"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-11-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2014.07.020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2014-08-17", "title": "Methane And Nitrous Oxide Emissions From Flooded Rice Fields As Affected By Water And Straw Management Between Rice Crops", "description": "Abstract Rice fields in the tropics can vary in water regime before production of rice on flooded soil, but relatively little is known about the effects of soil water regime and crop residue management between rice crops (i.e., fallow period) on methane (CH 4 ) and nitrous oxide (N 2 O) emissions during a subsequent rice crop. We measured CH 4 and N 2 O emissions during two cropping seasons in the Philippines from field plots exposed to contrasting treatments during the fallow before land preparation for rice cultivation. The fallow treatments were continuous soil flooding (flooded), soil drying with exclusion of rainfall (dry), soil drying with dry tillage (dry\u00a0+\u00a0tillage), and a control with soil drying and wetting from rainfall (dry and wet). All plots were subdivided into removal of all aboveground rice residues from the previous crop (without residue) and retention of standing biomass after harvest of the previous rice crop (with residue). Emitted gas was collected weekly using chambers. Fallow treatments greatly influenced greenhouse gas (GHG) emissions during rice growth. Methane emissions and global warming potential (GWP) in both cropping seasons were highest following the flooded fallow, intermediate following the dry and wet fallow, and lowest following dry and dry\u00a0+\u00a0tillage fallows. The GWP was higher with than without residue across all fallow treatments. Nitrous oxide emissions were small during the season, and CH 4 emissions contributed more than 90% of the cumulative GWP during the rice crop regardless of fallow and residue management. Soil drying between rice crops in the tropics can reduce CH 4 emissions and GWP during the subsequent rice crop.", "keywords": ["2. Zero hunger", "climate change", "nitrous oxide", "13. Climate action", "methane", "8. Economic growth", "rice straw", "0401 agriculture", " forestry", " and fisheries", "food security", "04 agricultural and veterinary sciences", "15. Life on land", "agriculture"], "contacts": [{"organization": "Sander, Bj\u00f6rn Ole, Samson M, Buresh, R.J.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2014.07.020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2014.07.020", "name": "item", "description": "10.1016/j.geoderma.2014.07.020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2014.07.020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-12-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.02.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2016-02-14", "title": "Effect Of Fire Frequency On Runoff, Soil Erosion, And Loss Of Organic Matter At The Micro-Plot Scale In North-Central Portugal", "description": "Wildfire is a natural phenomenon that is a common ecological factor in Mediterranean ecosystems. The increase in occurrence in recent decades has raised widespread concern about the impact of repeated wildfires on runoff and erosion, a topic that has not been widely studied. We addressed these concerns in an area of north-central Portugal by comparing runoff at the micro-plot scale and the associated transport of sediments and organic matter (OM) in unburnt, once burnt, and repeatedly burnt plantations of Maritime Pine. We selected nine sites following a large wildfire in September 2012 that affected roughly 3000 ha of the Viseu municipality. Three of the sites had not been burnt since 1975 and acted as controls, with covers of pine trees, shrubs, and annual vegetation; three sites had burnt only in 2012 and contained burnt pines but no shrubs or annual vegetation; and three degraded sites had suffered from three wildfires prior to 2012 and contained no vegetation. We established nine micro-plots (0.25 m2) at each site and collected runoff, eroded soil, and OM losses in tanks after each rain from October 2012 to September 2014. The repeated wildfires strongly increased the runoff coefficient and the risk of downstream flooding after heavy rains. OM losses were nearly half the volume of the eroded soil in the degraded sites due to the transport of ash in the runoff. Runoff and soil losses occurred not only after erosive rainstorms following a fire but also after a subsequent period of drought. Soil cover, rain intensity, and soil moisture were key factors in the amount of runoff and erosion. The insights provided by this study can contribute to pre- and post-fire activities and management in protect areas and can thus improve post-fire recovery.", "keywords": ["Pine plantation", "Runoff", "13. Climate action", "11. Sustainability", "0401 agriculture", " forestry", " and fisheries", "Post-fire erosion", "04 agricultural and veterinary sciences", "Fire repetition", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.02.004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.02.004", "name": "item", "description": "10.1016/j.geoderma.2016.02.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.02.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-05-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.04.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2015-04-17", "title": "Corn Residue, Tillage, And Nitrogen Rate Effects On Soil Carbon And Nutrient Stocks In Illinois", "description": "Abstract Removal of crop residues for use as ethanol production feedstock might deplete soil carbon and nutrient pools in site- and management-specific ways. We investigated the effect of residue removal (RR), tillage (T), and N fertilizer rate (Nr) after five years of continuous corn (Zea mays L.) on total soil carbon (TC) and nutrient stocks at four sites within Illinois. The experimental design was a split\u2013split plot arrangement of treatments in a randomized complete block design with four replications, and all treatments remained in the same place each year. Main plots consist of one of three levels of corn residue removal (RR: full, partial, and none); split plots were two tillage systems (T: chisel tilled and no-till) and split\u2013split plots were four N fertilizer rates (Nr: 67, 134, 201, and 268\u00a0kg\u00a0N\u00a0ha\u2212\u00a01). The highest TC stocks were found under no-till without residue removal; removing any residue under no-till lowered TC to the levels found under chisel tillage. Removing residue in tilled soils produced higher TC values similar to the levels found with no residue removal and no-till. Residue removal tended to lower P and lowered K and EC in the surface 15\u00a0cm soil. Tillage decreased the N and K stocks in the surface soil. Increasing the rate of N fertilizer lowered P, K, and pH, generally in an increasing, curvilinear manner, but the response of EC was concave, increasing at the highest N rate used. These responses were closely related to corn grain yields, indicating that the amount of nutrient removed by harvest of grain and residue and the amount of residue retained after harvest affect TC and nutrient stocks in Illinois soils. This information will help producers and policy makers to make better decisions regarding the feasibility of harvesting corn residue, and on agronomic practices that might accompany residue removal in order to prevent soil nutrient depletion.", "keywords": ["2. Zero hunger", "Soil Science", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "3. Good health"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.04.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.04.002", "name": "item", "description": "10.1016/j.geoderma.2015.04.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.04.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-09-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.04.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2015-04-27", "title": "Application of smoothed particle hydrodynamics (SPH) and pore morphologic model to predict saturated water conductivity from X-ray CT imaging in a silty loam Cambisol", "description": "20 This study aims to estimate saturated hydraulic conductivity in a silty loam soil and compare modelled data with 21 experimental ones. The flow characteristics of twelve undisturbed soil cores (5 cm in diameter \u00d7 6 cm high) were 22 measured in the laboratory after performing X-ray computed microtomography (microCT) analysis. MicroCT 3D 23 imaging was integrated with an existing pore morphologic model and a numerical simulation based on mesh-24 free smoothed particle hydrodynamics (SPH) to calculate the water flow through the macropore network 25 (pores N 40 \u03bcm). Results showed that the proposed SPH method was able to predict hydraulic conductivity of 26 large-sized samples as falling in the range of the experimental ones. By contrast the morphologic model generally 27 underestimated the water flow and was slightly affected by the pore shape. Increasing microCT imaging resolu-28 tion and expanding the variability with other soil types will improve the understanding of the role of micropore 29 size and morphology on water conductivity. 30", "keywords": ["2. Zero hunger", "550", "[ SDV.SA.SDS ] Life Sciences [q-bio]/Agricultural sciences/Soil study", "0207 environmental engineering", "600", "04 agricultural and veterinary sciences", "02 engineering and technology", "Pore size distribution", "[ SDE.IE ] Environmental Sciences/Environmental Engineering", "Saturated hydraulic conductivity", "Soil structure", "0401 agriculture", " forestry", " and fisheries", "[ SDU.STU.HY ] Sciences of the Universe [physics]/Earth Sciences/Hydrology", "X-ray computed microtomography"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.04.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.04.019", "name": "item", "description": "10.1016/j.geoderma.2015.04.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.04.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-10-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.06.015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2015-07-06", "title": "Impact Of Alley Cropping Agroforestry On Stocks, Forms And Spatial Distribution Of Soil Organic Carbon \u2014 A Case Study In A Mediterranean Context", "description": "Abstract Agroforestry systems, i.e., agroecosystems combining trees with farming practices, are of particular interest as they combine the potential to increase biomass and soil carbon (C) storage while maintaining an agricultural production. However, most present knowledge on the impact of agroforestry systems on soil organic carbon (SOC) storage comes from tropical systems. This study was conducted in southern France, in an 18-year-old agroforestry plot, where hybrid walnuts ( Juglans regia \u00d7 nigra L.) are intercropped with durum wheat ( Triticum turgidum L. subsp. durum ), and in an adjacent agricultural control plot, where durum wheat is the sole crop. We quantified SOC stocks to 2.0\u00a0m depth and their spatial variability in relation to the distance to the trees and to the tree rows. The distribution of additional SOC storage in different soil particle-size fractions was also characterized. SOC accumulation rates between the agroforestry and the agricultural plots were 248\u00a0\u00b1\u00a031\u00a0kg\u00a0C\u00a0ha \u2212\u00a01 \u00a0yr \u2212\u00a01 for an equivalent soil mass (ESM) of 4000\u00a0Mg\u00a0ha \u2212\u00a01 (to 26\u201329\u00a0cm depth) and 350\u00a0\u00b1\u00a041\u00a0kg\u00a0C\u00a0ha \u2212\u00a01 \u00a0yr \u2212\u00a01 for an ESM of 15,700\u00a0Mg\u00a0ha \u2212\u00a01 (to 93\u201398\u00a0cm depth). SOC stocks were higher in the tree rows where herbaceous vegetation grew and where the soil was not tilled, but no effect of the distance to the trees (0 to 10\u00a0m) on SOC stocks was observed. Most of the additional SOC storage was found in coarse organic fractions (50\u2013200 and 200\u20132000\u00a0\u03bcm), which may be rather labile fractions. All together our study demonstrated the potential of alley cropping agroforestry systems under Mediterranean conditions to store SOC, and questioned the stability of this storage.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "http://aims.fao.org/aos/agrovoc/c_28568", "Juglans regia", "F08 - Syst\u00e8mes et modes de culture", "culture associ\u00e9e", "Triticum turgidum", "630", "spectroscopie infrarouge", "zone m\u00e9diterran\u00e9enne", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "http://aims.fao.org/aos/agrovoc/c_35657", "agroforesterie", "2. Zero hunger", "http://aims.fao.org/aos/agrovoc/c_35927", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "soil organic carbon storage", "http://aims.fao.org/aos/agrovoc/c_29563", "soil organic carbon saturation", "04 agricultural and veterinary sciences", "deep soil organic carbon stocks", "http://aims.fao.org/aos/agrovoc/c_207", "s\u00e9questration du carbone", "P31 - Lev\u00e9s et cartographie des sols", "http://aims.fao.org/aos/agrovoc/c_4060", "mati\u00e8re organique du sol", "P33 - Chimie et physique du sol", "Visible and near infrared spectroscopy", "571", "structure du sol", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "Juglans nigra", "particle-size fractionation", "Particle-size fractionation", "12. Responsible consumption", "Soil organic carbon saturation", "visible and near infrared spectroscopy", "http://aims.fao.org/aos/agrovoc/c_33452", "http://aims.fao.org/aos/agrovoc/c_3081", "http://aims.fao.org/aos/agrovoc/c_4059", "Deep soil organic carbon stocks", "15. Life on land", "http://aims.fao.org/aos/agrovoc/c_331583", "cartographie des fonctions de la for\u00eat", "K10 - Production foresti\u00e8re", "soil mapping", "Soil mapping", "culture en couloirs", "http://aims.fao.org/aos/agrovoc/c_7958", "Soil organic carbon storage", "http://aims.fao.org/aos/agrovoc/c_7196", "0401 agriculture", " forestry", " and fisheries", "http://aims.fao.org/aos/agrovoc/c_1374847637217", "U30 - M\u00e9thodes de recherche"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.06.015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.06.015", "name": "item", "description": "10.1016/j.geoderma.2015.06.015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.06.015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.04.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2015-04-18", "title": "Will Changes In Climate And Land Use Affect Soil Organic Matter Composition? Evidence From An Ecotonal Climosequence", "description": "Abstract As the largest actively cycling pool of terrestrial C, the response of soil organic matter (SOM) to climate change may greatly affect global C cycling and climate change feedbacks. Despite the influence of SOM chemistry\u2014here defined as soil organic C (SOC) and soil organic N (SON) functional groups and compounds\u2014on decomposition, uncertainty exists regarding the response of SOM chemistry to climate change and associated land use shifts. Here, we adopt a climosequence approach, using latitude along a uniform glacial till deposit at the grassland\u2013forest ecotone in central Canada as a surrogate for the effects of climate change on SOM chemistry. Additionally, we evaluate differences in SOM chemistry from paired native grassland, native trembling aspen ( Populus tremuloides ) forest, and arable soil profiles to investigate the effects of likely climate-induced land use alterations. The combination of C and N K -edge X-ray absorption near edge structure (XANES) with pyrolysis-field ionization mass spectrometry (Py-FIMS) techniques was used to examine SOM chemistry at atomic and molecular scales, respectively. These techniques revealed only modest differences in surface SOM chemistry related to land use and latitude. Greater variation was apparent in the vertical stratification of SOM constituents from soil depth profiles. These findings indicate that pedon-scale processes have greater control over SOM chemistry than do processes operating on landscape (e.g. land use) and regional (e.g. climate) scales. Additionally they imply that SOM chemistry is largely unresponsive to climatic change on the magnitude of the mean annual temperature (MAT) gradient under study (~\u00a00.7\u00a0\u00b0C), despite its location at the grassland\u2013forest boundary highlighting its sensitivity, and is similarly unresponsive to associated land use shifts.", "keywords": ["Vegetation", "Ecology and Evolutionary Biology", "Plant Sciences", "Agriculture", "Genetics and Genomics", "04 agricultural and veterinary sciences", "15. Life on land", "Soil quality", "13. Climate action", "Land use", "Climate change", "0401 agriculture", " forestry", " and fisheries", "Organic nitrogen", "Forest Sciences", "Organic carbon"], "contacts": [{"organization": "Purton, Kendra, Pennock, Dan, Leinweber, Peter, Walley, Fran,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.04.007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.04.007", "name": "item", "description": "10.1016/j.geoderma.2015.04.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.04.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-09-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.06.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2015-06-13", "title": "Impacts Of Urea Deep Placement On Nitrous Oxide And Nitric Oxide Emissions From Rice Fields In Bangladesh", "description": "Abstract Urea deep placement (UDP) increases nitrogen use efficiency (NUE) in lowland rice fields by reducing ammonia volatilization, surface runoff and increasing nitrogen uptake. However, its effects on N losses as nitrous oxide (N 2 O) and nitric oxide (NO) are not yet clear. We conducted field experiments at two locations of Bangladesh \u2014 Bangladesh Agricultural University (BAU) and Bangladesh Rice Research Institute (BRRI) \u2014 to determine the effects of UDP vs broadcast urea on N 2 O and NO emissions from rice fields. N 2 O and NO emissions were measured from three N fertilizer treatments (control [0\u00a0kg\u00a0N/ha], UDP, broadcast urea) using automated gas sampling and analysis system continuously for three rice growing seasons \u2014 Aus (May\u2013Aug), Aman (Aug\u2013Dec) and Boro (Jan\u2013May). Urea was applied as 2\u20133 split application, while for UDP treatment, urea briquettes were deep placed (7\u201310\u00a0cm depth) between 4 hills of rice at alternate rows to meet recommended N rates in a single application. Treatments were arranged in a randomized complete block design with three replications and N 2 O and NO measurements were done at every three-hour interval. N 2 O emissions were sporadic and event specific. Peaks in N 2 O emissions were observed after broadcast application of urea, during dry period and after re-flooding of the dry soil. For the rest of the time during the rice-growing season, emissions were very low to negligible. However, across the rice-growing seasons, UDP significantly (P\u00a0 2 O emissions compared with broadcast urea. Moreover, N 2 O emissions showed significant spatial and seasonal variations. They were higher during Boro season compared with Aus and Aman seasons and at BAU site than that of BRRI. Conversely, emissions between Aus and Aman seasons and between control and UDP treatments were similar. In contrast to N 2 O emissions, NO emissions were negligible and not affected by fertilizer treatment. However, significant spatial and seasonal variations were observed, with higher NO emissions at BRRI site compared with BAU and during Boro than that of Aus season.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.06.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.06.001", "name": "item", "description": "10.1016/j.geoderma.2015.06.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.06.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.07.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2015-08-06", "title": "Chemical weathering in the volcanic soils of Isla Santa Cruz (Gal\u00e1pagos Islands, Ecuador)", "description": "Abstract Forty-three soils (130 horizons), sampled by the geo-pedological mission organized by the State University of Gent (Belgium) in 1962 on Isla Santa Cruz (Galapagos Islands), were analysed in order to determine their degree of chemical evolution. Several weathering indices (Weathering Index of Parker \u2013 WIP \u2013, Chemical Index of Alteration \u2013 CIA \u2013, Chemical Index of Weathering \u2013 CIW \u2013, Plagioclase Index of Alteration \u2013 PIA \u2013 and Silica\u2013Titania Index \u2013 STI \u2013) and multivariate statistical analysis (principal components analysis), based on chemical composition, were used. With the only exception of the STI, the indices were highly correlated (r\u00a0>\u00a00.85). The highest WIP and STI values (20.9\u00a0\u00b1\u00a08.2 and 70.2\u00a0\u00b1\u00a02.2 respectively) were found for soils developed on basalt flows near the coast. Slightly lower values (WIP 16.8\u00a0+\u00a05.1 and STI 61\u00a0\u00b1\u00a03.4) were shown by brown soils developed from basaltic flows at elevations between 140 and 225\u00a0m\u00a0a.s.l. While the lowest values (WIP 9\u00a0\u00b1\u00a05 and STI 47\u00a0\u00b1\u00a06.8), representing the more weathered materials, were found for soils located at the highest elevations (>\u00a0400\u00a0m\u00a0a.s.l.) and mostly developed on pyroclastic materials (tuff and tephra). As the chemical composition of the geological material (basalt and tephra) is highly homogeneous, the degree of weathering is likely to depend on climatic conditions controlled by altitude and orientation. On the windward slopes of the island a gradient of increasing weathering is observed from the arid conditions predominant at the coast to elevations of 400\u2013500\u00a0m\u00a0a.s.l., where much more humid conditions prevail. Principal component analysis on elemental composition also supported the interpretation that the degree of weathering (first component) and soil horizonation (second component) are both related to climatic conditions. Both, the variation of the chemical indices and the principal components of the geochemical composition are related to the bioclimatic zones: soils with the lowest degree of weathering are located in the arid coastal zone; slightly higher intensity was found for soils located in the transition and Scalesia zones; while the most weathered soils appear in the brown zone. Compared to other volcanic soils studied in the literature, soils from Isla Santa Cruz are in the upper range of chemical weathering intensity, only comparable to soils from Azores Islands and Canary Islands (Tenerife and La Gomera) developed on basalts, under oceanic conditions.", "keywords": ["13. Climate action", "Earth and Environmental Sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.07.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.07.019", "name": "item", "description": "10.1016/j.geoderma.2015.07.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.07.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.12.016", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2016-01-07", "title": "Biochar-Induced N2o Emission Reductions After Field Incorporation In A Loam Soil", "description": "Abstract Biochar addition to soils is heralded to reduce N2O emissions, but still, the explanatory mechanisms have not been resolved. Moreover, it is uncertain whether N2O emission reductions would persist after prolonged biochar incorporation in the field. In this study, we incorporated four biochar types in a loam textured cropland field and intact soil cores were sampled to investigate the physical control of biochar on denitrification after 7\u00a0months. During a first incubation experiment, we measured N2O emissions from undisturbed and disturbed (i.e. sieved (2\u00a0mm) and grounded) soil cores. Both in the disturbed and undisturbed soil cores biochar at water filled pore space (WFPS) of 80% reduced the N2O emissions by 50\u201390%, refuting the hypothesis that biochar exerts an indirect physical control over soil denitrification several months after incorporation. Secondly, we hypothesized that biochar creates denitrification \u2018hotspots\u2019 in soil, where complete reduction of N2O to N2 is promoted compared to non-amended soil. In these hotspots biochar particles could act as microlocations with local anaerobic conditions and local higher pH, stimulating in this way complete denitrification. Via the acetylene inhibition method we did not observe a reduction in the N2O/(N2O\u00a0+\u00a0N2) ratio, which could suggest that biochar did not promote the reduction of N2O to N2. Manipulations likely to promote labile C bioavailability, here either by glucose addition or by soil particulate OM disclosure after disruption of soil aggregates, resulted in the most prominent biochar-induced N2O emission reductions.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "3. Good health"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.12.016"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.12.016", "name": "item", "description": "10.1016/j.geoderma.2015.12.016", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.12.016"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-04-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.01.039", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2016-02-04", "title": "Soil Phosphorus Fractions And Arbuscular Mycorrhizal Fungi Diversity Following Long-Term Grazing Exclusion On Semi-Arid Steppes In Inner Mongolia", "description": "Abstract Grazing exclusion is one of the common grassland management strategies to restore degraded grasslands. The effectiveness of grazing exclusion on sequestering soil organic carbon, increasing total nitrogen and improving soil biological activity has been documented in literature. Few studies, however, have examined the responses of phosphorus (P) fractions and arbuscular mycorrhizal fungi (AMF) diversity to long-term grazing exclusion. In this study, the variations of soil chemical properties, the status of inorganic and organic P fractions in the rhizosphere soil, and the AMF diversity in roots of Leymus chinensis , Stipa krylovii and Cleistogenes squarrosa and in bulk soils were investigated in continuously grazed and ungrazed paddocks (exclusion from grazing for 10\u201312\u00a0years) on typical and meadow steppes in Inner Mongolia, aiming to evaluate the effectiveness of grazing exclusion in improving AMF diversity and soil P status. Grazing exclusion altered plant species compositions and increased aboveground biomass and ground cover, resulting in increased concentrations of soil organic carbon and total nitrogen. The concentration of total phosphorus increased in typical steppes but reduced in meadow steppes, while the concentrations of available P and most P fractions remained unchanged or reduced following 10\u201312\u00a0years of grazing exclusion. Grazing exclusion improved AMF colonization in meadow steppes, but not in typical steppes, attributing to the differences in soil quality, plant species, and AMF phylotypes between two types of steppes. AMF diversity was positively correlated with soil pH, concentrations of soil total nitrogen, total organic carbon, total P, Ca 10 \u2013P, medium labile organic P, and the activity of alkaline phosphatase, indicating that, on semi-arid steppes in northern China, improved soil conditions would increase the AMF diversity, thus enhancing the productivity of the steppe ecosystem. However, changes of soil AMF phylotypes due to overgrazing would be detrimental to this fragile ecosystem.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.01.039"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.01.039", "name": "item", "description": "10.1016/j.geoderma.2016.01.039", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.01.039"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-05-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.02.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2016-02-19", "title": "Potential Of Grassland Rehabilitation Through High Density-Short Duration Grazing To Sequester Atmospheric Carbon", "description": "According to the World Resources Institute (2000), a relative increase of carbon (C) stocks in world soils by 0.4% per year would be sufficient to compensate all anthropogenic greenhouse gas emissions. Several land management practices such as the suppression of tillage in agroecosystems and livestock exclusion in grasslands had initially been thought to store more carbon into the soil, but recent research puts this into question. In a context where finding effective C sequestration methods is urgent, the main objective of this study was to assess the ability of an innovative grassland management practice based on high density and short duration (HDSD) grazing to sequester atmospheric C into soils. The study was performed in a degraded communal rangeland in South Africa where soil organic C (SOC) depletion ranged from 5 to 95% depending on the degradation level, which varied from non-degraded (ND; with grass above ground coverage, Cov of 100%), degraded (D1; 50 < Cov < 75%), D2 (25 < Cov < 50%) and HD (highly degraded: Cov < 5%). The ability of HDSD (1200 cows ha\u2212 1 for 3 days a year) to replenish SOC stocks was compared to four commonly used strategies: (1) livestock exclosure (E); (2) livestock exclosure with topsoil tillage (ET); (3) livestock exclosure with NPK fertilization (2:3:3, 22 at 0.2 t ha\u2212 1) (EF); (4) annual burning (AB); all treatments being compared to traditional free grazing control. A total of 540 soil samples were collected in the 0\u20130.05 m soil layer for all treatments and degradation intensities. After two years, topsoil SOC stocks were significantly increased under EF and HDSD, by an average of 33.4 \u00b1 0.5 and 12.4 \u00b1 2.1 g C m2 y\u2212 1, respectively. In contrast, AB reduced SOC stocks by 3.6 \u00b1 3.0 g C m2 y\u2212 1, while the impact of E and ET was not significant at P < 0.05. HDSD replenished SOC stocks the most at D1 and D2 (6.7 and 7.4% y\u2212 1) and this was explained by grass recovery, i.e. a significant increase in soil surface coverage by grass and grass production. HDSD is cost-effective, and thus has great potential to be widely adopted by smallholder farmers.", "keywords": ["2. Zero hunger", "[PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]", "Rehabilitation", "Sequestration", "[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]", "04 agricultural and veterinary sciences", "15. Life on land", "Grassland", "01 natural sciences", "630", "Degradation", "Grazing", "13. Climate action", "Others", "Climate change", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.02.010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.02.010", "name": "item", "description": "10.1016/j.geoderma.2016.02.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.02.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.06.035", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2016-07-07", "title": "Cover Crops Prevent The Deleterious Effect Of Nitrogen Fertilisation On Bacterial Diversity By Maintaining The Carbon Content Of Ploughed Soil", "description": "Abstract Synthetic nitrogen (N) fertilisers are widely used for enhancing agrosystem productivity and are thus thought to increase organic inputs from crop residues. However, many crop rotations have a low amount of organic residue returned to the soil since the whole aboveground crop biomass is harvested and exported. To compensate for such organic outputs and to improve soil quality, the introduction of winter cover crops in rotations has been suggested. A 4-year controlled field experiment was conducted to quantify the respective and combined effects of chemical N fertilisation and winter cover crops on plant productivity, organic carbon (C) and N inputs from crop residues and cover crops, changes in soil C and N concentrations, C:N ratio, soil mineral N, pH, soil moisture and soil bacterial biodiversity. A ploughing tillage system with low organic input was assessed, for which the main crops were spring wheat, green pea, forage maize, along with cover crops of different legume and non-legume species. N fertilisation did not have an impact on the aboveground biomass except following forage maize. Cover crops increased the total amount of C and N inputs, irrespective of N fertilisation which had no significant effect. The soil N concentration decreased in all treatments, particularly when N fertilisers were applied under bare fallow conditions. The latter treatment also caused decreased soil C concentrations (slightly increased in the other treatments) and decreased bacterial biodiversity (no change in the other treatments). Bacteria from the Proteobacteria and Bacterioidetes phyla were highly correlated with soil from fertilised bare fallow conditions. While Verrucomicrobia was characteristic of non-fertilised bare fallow soils, Acidobacteria and Cyanobacteria were associated with the high C and N concentrations present in soils following cover crop treatments. Taken together, these results demonstrate that in ploughing systems, under low organic restitution regimes, intensive N fertilisation decreases the diversity of the bacterial soil community and reduces soil C and N concentrations, but only in bare fallow conditions. There is a protective effect of winter cover crops against the deleterious effect of chemical N fertilisation on soil biodiversity and nutrient cycling, since they can maintain soil C and N concentrations. The use of winter cover crops containing legumes is thus a practice that is able to meet the criteria of a sustainable agriculture.", "keywords": ["2. Zero hunger", "Cover crops", "[SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering", "[SDV]Life Sciences [q-bio]", "04 agricultural and veterinary sciences", "Soil nitrogen/carbon", "[SDV.IDA] Life Sciences [q-bio]/Food engineering", "15. Life on land", "01 natural sciences", "630", "6. Clean water", "Organic inputs", "[SDV] Life Sciences [q-bio]", "Crop productivity", "Nitrogen fertilisation", "[SDV.IDA]Life Sciences [q-bio]/Food engineering", "11. Sustainability", "[SDV.BV]Life Sciences [q-bio]/Vegetal Biology", "0401 agriculture", " forestry", " and fisheries", "[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering", "[SDV.BV] Life Sciences [q-bio]/Vegetal Biology", "Soil bacterial diversity", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.06.035"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.06.035", "name": "item", "description": "10.1016/j.geoderma.2016.06.035", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.06.035"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-11-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.08.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2016-08-28", "title": "Denitrification And Associated N2o Emissions Are Limited By Phosphorus Availability In A Grassland Soil", "description": "Abstract Effects of phosphorus (P) availability on nitrogen (N) loss through microbial nitrification and denitrification processes remain poorly understood. We conducted an incubation experiment to study the responses of N2O production after P (0 and 3\u00a0mg\u00a0P\u00a0kg\u2212\u00a01 soil) addition with and without NH4+ or NO3\u2212 (0 and 15\u00a0mg\u00a0N\u00a0kg\u2212\u00a01 soil) in a high P-fixing grassland soil. The N addition included a 15N tracer (1\u00a0mg\u00a015N\u00a0kg\u2212\u00a01). In a separate experiment, we also investigated the effect of P availability on potential nitrification and denitrification. We hypothesised that the addition of P in the soil would increase N2O emission from microbial nitrification and denitrification and thereby less soil 15N-NH4+ and 15N-NO3\u2212 would be recovered. We found that P addition only significantly increased cumulative N2O emission and respiration in the NO3\u2212 treatment, suggesting stimulated activities of denitrifying microorganisms due to their relief from P limitation. However, a decrease in soil 15N recovery after P addition in the NO3\u2212 treatment was not detected because of the very small loss of N as N2O (", "keywords": ["2. Zero hunger", "XXXXXX - Unknown", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.08.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.08.011", "name": "item", "description": "10.1016/j.geoderma.2016.08.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.08.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-12-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.08.026", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2016-09-24", "title": "Black Carbon And Black Nitrogen Storage Under Long-Term Paddy And Non-Paddy Management In Major Reference Soil Groups", "description": "Crop-residue burning and frequent paddy-soil flooding can lead to a substantial accumulation of black carbon (BC), thus contributing to long-term C sequestration. There is evidence that the turnover of BC in soils also depends on the soil mineral assembly. We studied the effects of paddy and non-paddy soil management and different major reference soil groups on BC storage. We hypothesized that overall BC storage in soil relates to paddy management and the abundance of reactive mineral phases such as Fe and Al oxides, and clay-sized minerals. Parallel to BC, black nitrogen (BN) should accumulate in soil. Paddy and non-paddy soils were sampled in three different climate zones (tropical, subtropical, and temperate). The soil profiles comprised six replicates of Andosols, Alisols and Vertisols from Java (Indonesia), and Alisols and Cambisols from China, as well as one Fluvisol and Gleysol from Northern Italy. Samples were taken by horizon down to >\u00a01\u00a0m depth and analyzed for soil organic carbon (SOC) and BC. The latter was analyzed by oxidation to benzene polycarboxylic acids. Abundance of BN (as aromatic N) was estimated by X-ray photoelectron spectroscopic analyses of selected topsoil horizons. In topsoils BC vs. SOC accumulation was affected by management for Andosol, Alisols in China, and Vertisols. However, both flooding and crop-residue management seemed to control this. BC contents relative to SOC also differed between the reference soil groups, independent of management (p\u00a0<\u00a00.0001), yet were surprisingly constant within replicates. We conclude that BC co-accumulated with SOC in all soils. However, the overall storage of BC (1\u00a0m depth) was affected by a combination of soil group and management. Vertisols contained the largest BC stocks (17\u201319\u00a0t\u00a0ha\u2212\u00a01 in non-paddy and paddy fields), followed by Andosols and Alisols (6\u201310\u00a0t\u00a0BC\u00a0ha\u2212\u00a01 under paddy management; 3\u20138\u00a0t\u00a0ha\u2212\u00a01 under non-paddy management). The Gleysol and Fluvisol had the smallest BC stocks, independent of soil use (3\u20134\u00a0t\u00a0ha\u2212\u00a01). Aromatic N proportions increased to >\u00a050% of total N after combustion of rice straw. However, aromatic N was barely, or not detectable in soil, and there was no correlation to BC. We conclude that burned crop residues were not a major source for aromatic N in soil. BC and aromatic N showed no distinct relations to soil properties, such as the abundance of clay-sized minerals, and Al and Fe oxides. Differences in BC stocks between the soils were most pronounced in the subsoils, likely caused by physical processes, such as swelling and shrinking of clays and/or translocation by leaching. Climate and regional soil-adjusted management also affected BC accumulation, but this first snapshot indicates that global BC maps may be linked to global soil maps.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Aluminum oxides; Black carbon; Black nitrogen; C sequestration; Clay-size fraction; Iron oxides; Soil Science", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://iris.unito.it/bitstream/2318/1607391/2/Geoderma_284_214_postprint_4aperto.pdf"}, {"href": "https://doi.org/10.1016/j.geoderma.2016.08.026"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.08.026", "name": "item", "description": "10.1016/j.geoderma.2016.08.026", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.08.026"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-12-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.11.025", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2016-11-25", "title": "Multi-Year And Multi-Location Soil Quality And Crop Biomass Yield Responses To Hardwood Fast Pyrolysis Biochar", "description": "Abstract Biochar can remediate degraded soils and maintain or improve soil health, but specific and predictable effects on soil properties and crop productivity are unknown because of complex interactions associated with climate patterns, inherent soil characteristics, site-specific crop and soil management practices, and the source, production characteristics, and amount of biochar applied. This multi-location field study was designed and conducted to determine if consistent response patterns could be elucidated by controlling the type and amount of biochar applied, depth of incorporation, and soil/crop management practices as much as possible for six U.S. locations. When averaged for five reporting locations, biochar or biochar plus manure (bio\u00a0+\u00a0man) treatments significantly ( P P P \u00a0=\u00a00.017) at one of the six locations. Overall, we conclude that hardwood biochar produced by fast pyrolysis can be an effective soil amendment for increasing SOC levels within a broad range of temperate soils, but crop yield responses should be anticipated only when specific soil quality problems limit productivity.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.11.025"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.11.025", "name": "item", "description": "10.1016/j.geoderma.2016.11.025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.11.025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-03-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.03.028", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2016-04-19", "title": "Soil Phosphorus Compounds In Integrated Crop-Livestock Systems Of Subtropical Brazil", "description": "Abstract Soil phosphorus (P) utilization may be affected by agricultural complexity, in particular when combining annual crops and livestock grazing on the same land area and at overlapping times. Our objectives were to qualify and quantify soil organic and inorganic P compounds using sodium hydroxide-ethylenediaminetetraacetic acid (NaOH-EDTA) extraction and 31 P nuclear magnetic resonance spectroscopy ( 31 P NMR) in response to increasing complexity with integrated crop-livestock systems (ICLS) in subtropical Brazil. Soil at a depth of 0\u20135\u00a0cm was collected from three long-term (7 to 12\u00a0years) cropping studies with and without ruminant grazing of cover crops. All sites were managed under no tillage, and treatments with livestock were managed with moderate grazing intensity. In these agro-ecosystems, grazing compared with no-grazing had greater soil P content as total and bioavailable orthophosphate and lower soil organic P and fewer monoesters, including inositol phosphates. Grazing increased P bioavailability and reduced recalcitrant organic P concentration in soil; therefore, cropping systems that integrate livestock (ICLS) can be a sustainable alternative to improve P use in farming systems of subtropical Brazil.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "7. Clean energy", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.03.028"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.03.028", "name": "item", "description": "10.1016/j.geoderma.2016.03.028", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.03.028"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-07-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.07.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:03Z", "type": "Journal Article", "created": "2016-07-30", "title": "Soil Carbon Changes After Establishing Woodland And Agroforestry Trees In A Grazed Pasture", "description": "Abstract This study determined the effect of two tree planting methods (woodland and a silvopastoral agroforestry system) on the soil bulk density and organic carbon content of a grassland site in lowland England. Soil organic carbon was measured in pasture, silvopastoral tree, and woodland treatments at six depths representative of 0\u2013150\u00a0cm. Fourteen years after tree planting, the organic carbon content in the surface soil layer (0\u201310\u00a0cm) was greatest in the pasture (6.0\u00a0g 100\u00a0g\u2212\u00a01) and least in the woodland (4.6\u00a0g 100\u00a0g\u2212\u00a01); the value (5.3\u00a0g 100\u00a0g\u2212\u00a01) below the silvopastoral trees was intermediate. In the 10\u201320\u00a0cm layer, the organic carbon content in the woodland was 13% lower than the pasture. No treatment effects on soil carbon were detected below 20\u00a0cm. Possible reasons for the decline in surface soil carbon include a decline in grass cover and reduced soil water content. Measurements of above ground carbon storage by the trees indicated that tree planting increased overall carbon storage, with the silvopastoral system predicted to achieve a higher level of carbon storage than equivalent areas of separate woodland and pasture. A power analysis indicates that a prohibitively large number of replicates is needed to ensure a lower than 20% risk of falsely concluding no treatment differences at individual depth increments below 10\u00a0cm and cumulative depths extending below 40\u00a0cm.", "keywords": ["Carbon sequestration", "2. Zero hunger", "Carbon time", "0401 agriculture", " forestry", " and fisheries", "Forest", "04 agricultural and veterinary sciences", "15. Life on land", "Silvopasture", "Grassland"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.07.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.07.002", "name": "item", "description": "10.1016/j.geoderma.2016.07.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.07.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-12-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.08.022", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2016-09-15", "title": "Early Drainage Mitigates Methane And Nitrous Oxide Emissions From Organically Amended Paddy Soils", "description": "Abstract Elevated greenhouse gas (GHG) emissions, particularly of methane (CH4) from flooded rice production systems contribute to global warming. Different crop management strategies, such as drainage of paddy soils and climate-smart residue management, are essential in order to mitigate GHG emissions from flooded rice systems, but they often conflict with practical management preferences. The aim of this study was to assess the potential of early-season drainage for mitigating CH4 and N2O emissions from soils with and without added organic amendments in relation to native soil organic carbon (SOC). Rice plants were grown in pots under controlled conditions in a growth chamber with different treatments in a 2\u00a0\u00d7\u00a02\u00a0\u00d7\u00a03 factorial design. The treatments included an arable soil with two different carbon levels: 1.4% (low carbon, [L]) and 2.2% (high carbon [H]); two water regimes: midseason drainage (M) and early plus midseason drainage (EM); and three nutrient treatments: one inorganic control (nitrogen fertiliser only [N]), and two organic: maize straw\u00a0+\u00a0N fertiliser (S) and maize compost\u00a0+\u00a0N fertiliser (C). An equal amount of mineral N fertiliser was applied in all treatments. Straw and compost were applied to the soils on the basis of an equivalent amount of C added in each organic treatment. The results revealed rapid mineralization of organic C in the double-drained system, resulting in lower total CH4 emissions in treatments under early plus midseason drainage compared to those under midseason drainage only. Total CH4 emissions were reduced by 89% and 92% in the S\u00a0+\u00a0EM treatments in low C soils and high C soils respectively, as compared to S\u00a0+\u00a0M. The drainage effects on CH4 emissions from compost amendments were only significant in the low C soil, with a 61% reduction in EM compared to M drainage. N2O emissions from non-organic treatments in EM were 87% higher than in M under low C soils. The concentrations of dissolved organic carbon (DOC) were higher in organic treatments and decreased by the end of growth period. This experiment demonstrated an interaction between water and straw management to achieve both sustainable soil quality and low-emission rice production.", "keywords": ["2. Zero hunger", "550", "Soil organic carbon", "[SDV]Life Sciences [q-bio]", "GHG mitigation", "Nutrient management", "food security", "04 agricultural and veterinary sciences", "15. Life on land", "630", "6. Clean water", "12. Responsible consumption", "soil organic carbon", "[SDV] Life Sciences [q-bio]", "climate change", "ghg mitigation", "nutrient management", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Early drainage", "early drainage", "agriculture"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2016.08.022"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.08.022", "name": "item", "description": "10.1016/j.geoderma.2016.08.022", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.08.022"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-10-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2016.11.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2016-11-24", "title": "Impacts Of Conversion Of Tropical Peat Swamp Forest To Oil Palm Plantation On Peat Organic Chemistry, Physical Properties And Carbon Stocks", "description": "Ecosystem services provided by tropical peat swamp forests, such as carbon (C) storage and water regulation, are under threat due to encroachment and replacement of these natural forests by drainage-based agriculture, commonly oil palm plantation. This study aims to quantify how the chemical and physical properties of peat change during land conversion to oil palm. This will be addressed by comparing four separate stages of conversion; namely, secondary peat swamp forests, recently deeply drained secondary forests, cleared and recently planted oil palm, and mature oil palm plantation in North Selangor, Malaysia. Results indicate accelerated peat decomposition in surface peats of mature oil palm plantations due to the lowered water table and altered litter inputs associated with this land-use change. Surface organic matter content and peat C stocks at secondary forest sites were higher than at mature oil palm sites (e.g. C stocks were 975 \u00b1 151 and 497 \u00b1 157 Mg ha\u2212 1 at secondary forest and mature oil palm sites, respectively). Land conversion altered peat physical properties such as shear strength, bulk density and porosity, with mirrored changes above and below the water table. Our findings suggest close links between the organic matter and C content and peat physical properties through the entire depth of the peat profile. We have demonstrated that conversion from secondary peat swamp forest to mature oil palm plantation may seriously compromise C storage and, through its impact on peat physical properties, the water holding capacity in these peatlands.", "keywords": ["GE", "QH301 Biology", "G Geography (General)", "Q Science (General)", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "333", "6. Clean water", "13. Climate action", "GB Physical geography", "0401 agriculture", " forestry", " and fisheries", "GE Environmental Sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://researchonline.ljmu.ac.uk/id/eprint/12410/3/Impacts%20of%20conversion%20of%20tropical%20peat%20swamp%20forest%20to%20oil%20palm%20plantation%20on%20peat%20organic%20chemistry%2C%20physical%20properties%20and%20carbon%20stocks.pdf"}, {"href": "https://doi.org/10.1016/j.geoderma.2016.11.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2016.11.018", "name": "item", "description": "10.1016/j.geoderma.2016.11.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2016.11.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-03-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2017.01.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2017-01-16", "title": "Effect Of Cover Cropping On The Net Global Warming Potential Of Rice Paddy Soil", "description": "In temperate rice paddy fields, winter cover cropping and its biomass application are strongly recommended to increase soil organic carbon (SOC) stock and decrease global warming potential (GWP). However, its biomass application may increase greenhouse gas (GHG) emissions, particularly methane (CH4), during flooded rice cultivation. To evaluate the effect of cover cropping and its biomass application on the annual net GWP in a mono-rice cultivation system, we evaluated the emission rates of CH4, nitrous oxide (N2O), and carbon dioxide (CO2) under different cover cropping during the fallow and rice-growing seasons. In cover cropping treatments, barley, hairy vetch, and a barley and hairy vetch mixture were cultivated as winter cover crops without fertilization during the fallow season. Moreover, the total aboveground biomass was incorporated as a green manure one week before rice transplanting. The recommended levels of chemical fertilizers were applied for rice cultivation in the control treatment (NPK) for comparison. The emission rates of CH4, soil respiration, and N2O gases were simultaneously monitored once a week using the closed-chamber method. However, the soil respiration fluxes included only soil respiration and excluded soil C sequestration through cover cropping and its biomass recycling. The net ecosystem C budget (NECB), which is defined as the difference between the total organic C input and output, was estimated to ascertain the pure soil respiration emission fluxes by mass balance approach. Finally, the net GWP was compared among treatments for the two cultivation seasons. During the dry fallow season, cover cropping significantly increased the soil respiration, and this treatment mineralized C loss significantly increased the seasonal net GWP. In comparison, the cover crop biomass application as green manure increased the soil C balance (NECB) during the rice growing season but more significantly increased the CH4 emission. As a result, the cover cultivation and its biomass application greatly increased the annual net GWP scale upon cover cropping rice paddy soil. Therefore, soil management practices that can decrease CH4 emission during rice cultivation should be adopted in cover cropping of the rice paddy soil.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2017.01.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2017.01.001", "name": "item", "description": "10.1016/j.geoderma.2017.01.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2017.01.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-04-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2019.02.028", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2019-03-07", "title": "Possibilities to improve soil aggregate stability using biochars derived from various biomasses through slow pyrolysis, hydrothermal carbonization, or torrefaction", "description": "Various thermochemical conversion technologies can be applied in producing biochar from a wide range of raw materials. We studied the chemical quality of 10 different biochars produced via torrefaction (TOR), slow pyrolysis (SP), or hydrothermal carbonization (HTC), in order to assess their potential in improving clay soil aggregate stability and thus contribute to mitigation of erosion from agricultural soils. X-ray tomography was used to visualize soil aggregates in some selected biochar treatments. Feedstock type had a major influence on the properties of the biochar, but in general biochars derived through SP were alkaline and exhibited higher electrical conductivity and ash content and lower surface activity than acidic HTC and TOR biochars. Alkyl peak areas determined from FTIR spectra were higher in biochars produced by TOR and HTC than in SP biochars, which indicates a higher degree of hydrophobicity in the former. Significantly higher aggregate stability and reduced colloid detachment were achieved with HTC biochars, most likely due to hydrophobicity reducing wetting rate and aggregate slaking. When mixed with initially aggregated soil, the biochar particles settled in inter-aggregate voids. According to image analysis, the internal porosity of soil aggregates was not affected by biochar addition, i.e., biochar did not enter the aggregates during the short incubation period. Addition of hydrophobic HTC biochar decreased the soil water content at field capacity, whereas more inert SP chars tended to increase it. The overall effect of biochar hydrophobicity on soil functions needs to be explored prior to wider use of biochar as a soil amendment.", "keywords": ["ta1172", "ta1171", "04 agricultural and veterinary sciences", "15. Life on land", "erosion", "333", "6. Clean water", "soil aggregates", "clay soils", "ta1181", "0401 agriculture", " forestry", " and fisheries", "SDG 7 - Affordable and Clean Energy", "agricultural soils", "soil structure", "ta414", "ta415"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2019.02.028"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2019.02.028", "name": "item", "description": "10.1016/j.geoderma.2019.02.028", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2019.02.028"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-06-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2017.01.025", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2017-02-09", "title": "Soil C Quantities Of Mangrove Forests, Their Competing Land Uses, And Their Spatial Distribution In The Coast Of Honda Bay, Philippines", "description": "Mangrove forests provide many ecosystem goods and services and they contain large amount of carbon (C) especially in their soil. Yet, their global area is still declining owing to conversion to non-forest land uses. While studies have been conducted on mangrove soil C stocks, our knowledge on how C stocks of mangrove forests compare with those of non-forest land uses that replaced them is still limited. This knowledge is crucial in land use planning and decision-making in the coastal zone. Site-scale mapping and assessments of mangrove soil C stocks and the land uses that replaced them are also limited. The aim of this study was to quantify and compare the soil C stocks in mangrove forests and their competing non-forest land uses (represented by aquaculture pond, coconut plantation, salt pond and cleared mangrove), estimate soil C loss arising from conversion, and model the soil C stock distribution in the entire study site. On the average, the soil C stock of mangrove forests was 851.9 \u00b1 87 MgC ha\u2212 1 while that of their non-forest competing land uses was less than half at 365.1 \u00b1 31 MgC ha\u2212 1. Closed canopy mangrove was highest at 1040 \u00b1 104 MgC ha\u2212 1, followed by open canopy mangrove (640 \u00b1 131 MgC ha\u2212 1) while aquaculture, salt pond and cleared mangrove had comparable C stocks (454 \u00b1 32, 401 \u00b1 9, 413 \u00b1 25 MgC ha\u2212 1, respectively) and coconut plantation had the least (42 \u00b1 0.7 MgC ha\u2212 1). Overall, the reduction in soil C stock (soil C loss) due to land use conversion in mangrove ranged from 398 to 809 MgC ha\u2212 1 (mean: 486.8 MgC ha\u2212 1) or a decline of 57% in soil C stock, on the average. It was possible to model the site-scale spatial distribution of soil C stocks and predict their values with 85% overall certainty using the Ordinary Kriging approach. Results from this study could help inform current discussions on Blue Carbon and REDD + as well as policy and program development that advance research on soil C conservation and ecosystem services in coastal forested wetlands.", "keywords": ["580", "c stock", "mangrove", "spatial modelling", "570", "aquaculture", "blue carbon", "Philippines", "14. Life underwater", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2017.01.025"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2017.01.025", "name": "item", "description": "10.1016/j.geoderma.2017.01.025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2017.01.025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-05-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2017.09.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2017-09-16", "title": "Interactions Between Earthworms And Mesofauna Affect Co2 And N2o Emissions From Soils Under Long-Term Conservation Tillage", "description": "Abstract Soil carbon dioxide (CO 2 ) and nitrous oxide (N 2 O) emissions contribute significantly to global warming. Studies have shown that soil fauna can significantly affect greenhouse gas emissions. To date, although there were some studies on the effect of interactions of soil fauna on soil CO 2 and N 2 O emissions, the role of soil fauna on CO 2 and N 2 O emissions is far from settled, especially for a wide variety of soil and human practices. Therefore, we studied how the interactions between different groups of soil fauna affect soil CO 2 and N 2 O emissions from an arable black soil (Typic Hapludoll, USDA Soil Taxonomy) subjected to conservation tillage for 13\u00a0years. We conducted a 35-day microcosm experiments with black arable soil and hay residues. The following soil fauna groups were included in our experiments: earthworms ( Eisenia fetida (Savigny 1826)), Collembola ( Thalassaphorura encarpata (Denis 1931) and Allonychiurus songi (Sun and Wu 2012)) and predatory mites ( Hypoaspis kirinensis (Chang et al., 1963)). The presence of earthworm and Collembola significantly enhanced soil N 2 O emissions ( P 2 emissions (16\u00a0days later) ( P \u00a0>\u00a00.05). The addition of micro-size predator mites to microcosms did not enhance soil CO 2 or N 2 O emissions. This suggests the presence of earthworms in microcosms can increase soil CO 2 and N 2 O emissions. In addition, the effects of predators with different species and their interactions with other groups on soil properties should be considered. This study indicates that earthworm plays the dominant roles in soil CO 2 and N 2 O emissions, especially with other soil mesofauna, such as Collembola. Also, our data analyses demonstrate that higher contents of available soil C and N can result in higher CO 2 and N 2 O emissions.", "keywords": ["2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2017.09.007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2017.09.007", "name": "item", "description": "10.1016/j.geoderma.2017.09.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2017.09.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-12-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2017.12.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2017-12-29", "title": "Unravelling The Effects Of Plant Species Diversity And Aboveground Litter Input On Soil Bacterial Communities", "description": "Abstract In order to differentiate the effects of root functioning and aboveground litter inputs on soil bacterial communities, a pot experiment was designed using different combinations of three plant species with contrasting chemical characteristics (0, 1, 2 or 3 species per plot) grown with or without aboveground litter inputs from the same plant species (no litter, litter from 1 of the species, or litter from the 3 species). Bacterial community structure (ITS diversity-ARISA), as well as total bacteria and denitrifier abundances (qPCR targeting the 16S rDNA and nirK or nirS genes) and denitrifying enzyme activity (DEA) were determined. No clear effects of the plant and litter identities were revealed over the incubation time. Moreover, differences in litter C:N values did not influence the bacteria or denitrifier abundances nor DEA. Interestingly, litter diversity modified the bacterial community structure, while plant richness altered the total bacteria and denitrifier abundances as well as DEA. Soil moisture appeared to be the major driver of plant and litter richness effects in our experiment.", "keywords": ["Plant and litter diversity", "Plant-microorganisms' interactions", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "2. Zero hunger", "570", "13. Climate action", "community functioning", "Bacterial and denitrifying", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "15. Life on land", "630"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2017.12.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2017.12.018", "name": "item", "description": "10.1016/j.geoderma.2017.12.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2017.12.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-05-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2017.01.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2017-01-15", "title": "Differential Responses Of Soil Bacterial Communities To Long-Term N And P Inputs In A Semi-Arid Steppe", "description": "Abstract Both nitrogen (N) and phosphorus (P) may limit plant production in steppes and affect plant community structure. However, few studies have explored in detail the differences and similarities in the responses of belowground microbial communities to long-term N and P inputs. Using a high-throughput Illumina Miseq sequencing platform, we characterized the bacterial communities in a semi-arid steppe subjected to long-term N or P additions. Our results showed that both the Chao richness and Shannon's diversity were negatively correlated to N input rate, while only Chao richness was significantly and negatively correlated to P input rate. Also, both N and P additions altered the bacterial community structure. The bacterial community between plots of the same N or P input rate was much more dissimilar with the higher input level, indicating more severe niche differentiation in pots with higher N or P input. N Inputs significantly increased the relative abundance of the predicted copiotrophic groups (Proteobacteria and Firmicutes) but reduced the predicted oligotrophic groups (Acidobacteria, Nitrospirae, Chloroflexi), with the order Rhizobiales being most affected. P additions significantly affected only two phyla (Armatimonadetes and Chlorobi), which were positively correlated with P source. Results from the structural equation modelling (SEM) showed that N additions affected the bacterial community primarily by changing the pH, while P additions did so mainly by improving P availability. Our results suggest that the below-ground bacterial communities are more sensitive to N inputs, but P inputs can also play an important role in bacterial niche differentiation. These findings improve our understanding of bacterial responses to N and P inputs, and their impacts on bacterial-mediated processes, especially in the context of increasing anthropogenic nutrient inputs.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2017.01.013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2017.01.013", "name": "item", "description": "10.1016/j.geoderma.2017.01.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2017.01.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-04-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2017.08.006", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2017-08-30", "title": "An improved method for calculating slope length (\u03bb) and the LS parameters of the Revised Universal Soil Loss Equation for large watersheds", "description": "Abstract The Universal Soil Loss Equation (USLE) and its revised version (RUSLE) are often used to estimate soil erosion at regional landscape scales. USLE/RUSLE contain parameters for slope length factor (L) and slope steepness factor (S), usually combined as LS. However a major limitation is the difficulty in extracting the LS factor. Methods to estimate LS based on geographic information systems have been developed in the last two decades. L can be calculated for large watersheds using the unit contributing area (UCA) or the slope length (\u03bb) as input parameters. Due to the absence of an estimation of slope length, the UCA method is insufficiently accurate. Improvement of the spatial accuracy of slope length and LS factor is still necessary for estimating soil erosion. The purpose of this study was to develop an improved method to estimate the slope length and LS factor. We combined the algorithm for multiple-flow direction (MFD) used in the UCA method with the LS-TOOL (LS-TOOLSFD) algorithms, taking into account the calculation errors and cutoff conditions for distance, to obtain slope length (\u03bb) and the LS factor. The new method, LS-TOOLMFD, was applied and validated in a catchment with complexly variable slopes. The slope length and LS calculated by LS-TOOLMFD both agreed better with field data than with the calculations using the LS-TOOLSFD and UCA methods, respectively. We then integrated the LS-TOOLMFD algorithm into LS-TOOL developed in Microsoft's .NET environment using C# with a user-friendly interface. The method can automatically calculate slope length, slope steepness, L, S, and LS factor, providing the results as ASCII files that can be easily used in GIS software and erosion models. This study is an important step forward in conducting accurate large-scale erosion evaluation.", "keywords": ["13. Climate action", "LS", "Soil erosion", "0207 environmental engineering", "RUSLE", "Terrain analysis", "02 engineering and technology", "15. Life on land", "GIS", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2017.08.006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2017.08.006", "name": "item", "description": "10.1016/j.geoderma.2017.08.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2017.08.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-12-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2017.10.020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2017-11-06", "title": "Characterising and linking X-ray CT derived macroporosity parameters to infiltration in soils with contrasting structures", "description": "Soils deliver the regulating ecosystem services of water infiltration and distribution, which can be controlled by macropores. Parameterizing macropore hydraulic properties is challenging due to the lack of direct measurement methods. With tension-disc infiltrometry hydraulic properties near saturation can be measured. Differentiating between hydrologically active and non-active pores, at a given water potential, indirectly assesses macropore continuity. Water flow through macropores is controlled by macropore size distribution, tortuosity, and connectivity, which can be directly derived by X-ray computed tomography (CT). Our objective was to parameterize macropore hydraulic properties based on the imaged macropore network of three horizons of an Andosol and a Gleysol. Hydraulic conductivity K unsat was derived from infiltration measurements. Soil cores from the infiltration areas were scanned with X-ray CT. K unsat was significantly higher in the Andosol than in the Gleysol at all water potentials, and decreased significantly with depth in both soils. The in situ measurements guided the definition of new macroporosity parameters from the X-ray CT reconstructions. For the Andosol, K unsat was best predicted using the imaged-limited macroporosity. A low total macroporosity, coupled with a high macropore density, indicated the abundance of smaller macropores, leading to homogeneous matrix flux. Imaged macropores were not well connected. In contrast, the Gleysol had a bi-modal macropore system with few very large, but well-connected macropores. K unsat was best predicted using the imaged macroporosity consisting only of macropores with diameters between 0.75 and 3 mm. Our research demonstrates that linking traditional soil physical measurements with soil-visualization techniques has a huge potential to improve parameterizing macropore hydraulic properties. The relevance of the relationships found in this study for larger scales and other soil types still needs to be tested, for example by a multi-scale investigation including a much wider range of different soils.
", "keywords": ["[SDE] Environmental Sciences", "Hydraulic parameters", "0207 environmental engineering", "04 agricultural and veterinary sciences", "02 engineering and technology", "15. Life on land", "6. Clean water", "Image analysis", "Tension disc in\ufb01ltrometr", "Tension disc infiltrometry", "Pore network", "13. Climate action", "Soil structure", "[SDE.ES] Environmental Sciences/Environment and Society", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2017.10.020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2017.10.020", "name": "item", "description": "10.1016/j.geoderma.2017.10.020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2017.10.020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-03-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2018.02.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2018-02-18", "title": "Runoff and nutrient loss from a water-repellent soil", "description": "Abstract The effects of soil water repellency (SWR) on runoff and nutrient losses are difficult to isolate. Hydrophobic organic substances coating soil particles can severely delay water infiltration and enhance runoff. We used a portable run-on simulator to investigate the effect of SWR on runoff and nutrient loss. Intact soil slabs, 0.48\u202fm long and 0.19\u202fm wide, were collected from a severely water-repellent Andosol under pasture. One day before simulating 60-min long run-on events with an intensity of 60\u202fmm\u202fh\u22121, superphosphate was applied at a rate of 45\u202fkg\u202fP\u202fha\u22121. The effects of SWR were quantified by comparing runoff volumes and nutrient losses from run-on events conducted with water and a fully wetting aqueous ethanol solution as run-on liquids. Further, through conducting multiple consecutive water run-on events with the same soil slab, the hypothesis, that SWR is lost through the washing off of hydrophobic materials, was tested. Finally, runoff dynamics were visualised by adding a dye to the run-on water. In the first run-on experiment, 88% of the water applied was captured as runoff, while no runoff was observed when aqueous ethanol was used as run-on liquid, providing strong evidence that SWR governed runoff generation from this Andosol. In consecutive water run-on experiments, approximately 23% of the applied P was recovered in the runoff from the first event, while the cumulative P loss over ten consecutive run-on events was around 30% of the applied P. This confirms that nutrient losses were associated with SWR and the occurrence of runoff. After ten consecutive run-on events, the persistence of both actual and potential SWR in areas of the slab that had been wetted were significantly (p", "keywords": ["13. Climate action", "[SDE.ES] Environmental Sciences/Environment and Society", "0207 environmental engineering", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "02 engineering and technology", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2018.02.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2018.02.019", "name": "item", "description": "10.1016/j.geoderma.2018.02.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2018.02.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-07-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2018.12.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2018-12-19", "title": "Organic carbon content controls the severity of water repellency and the critical moisture level across New Zealand pasture soils", "description": "Organic matter can render soil hydrophobic and cause soil water repellency (SWR) which has large implications for agriculture. Consequences such as fingered flow, uneven wetting patterns, and increased overland flow reduce irrigation efficiency and plant nutrient availability. The phenomenon of SWR is a transient soil property depending, inter alia, on soil water content (w). Soil can exhibit SWR from oven-dry w until the critical w where it again becomes fully wettable (wNON). The total SWR can be obtained from the nonlinear SWR-w relationship as the integrated trapezoidal area under the SWR-w curve (SWRAREA). We analyzed 78 soil samples, representing five dominant soil orders in the South Island of New Zealand. The soils had a large range in clay (0.000\u20130.520 kg kg\u22121) and organic carbon (OC) content (0.021\u20130.217 kg kg\u22121). The degree of SWR was measured on soils at air-dry conditions (SWRAD) and after heat-pretreatment at 60 (SWR60) and 105\u00b0C (SWR105). Further, SWR was measured in small w increments above air-dry w until wNON was reached. The SWR-w curves were either unimodal or bimodal, or no SWR occurred. SWRAREA ranged from 0.16 to 26.82 mN m\u22121 kg kg\u22121. Among the five soil orders tested, the Podzols exhibited the highest severity in SWR, whereas the Semiarid soils were the least hydrophobic soils. In conclusion, OC was the main factor for controlling the severity of SWR. Though, pH also had minor effects on SWR. Further, an upper limit critical water content was derived from the simple relationship between the wNON and OC, which could be applied to improve irrigation practices of pastoral soils. However, there is a need for further testing on different soils and land uses.
", "keywords": ["2. Zero hunger", "07 Agricultural and Veterinary Sciences", "05 Environmental Sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "06 Biological Sciences", "910", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2018.12.007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2018.12.007", "name": "item", "description": "10.1016/j.geoderma.2018.12.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2018.12.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-03-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2018.10.033", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2018-11-05", "title": "Two-decade long fertilization induced changes in subsurface soil organic carbon stock vary with indigenous site characteristics", "description": "Abstract Soil organic carbon (SOC) sequestration at subsurface layers (i.e. >20\u202fcm) remains unclear under long-term fertilization practices. Based on long-term datasets of fertilization experiments in four typical Chinese croplands, representing soils with high fertility at Gongzhuling (GZL, black soil) and Chongqing (CQ, purple soil), and low fertility at Zhengzhou (ZZ, aquatic Chao soil) and Qiyang (QY, red soil), we calculated SOC storage, its change relative to initial condition (\u0394SOC) in 0\u201320, 20\u201340 and 40\u201360\u202fcm. We also obtained annual organic C inputs (OCI; stubble, roots and manure amendment) and derived soil C sequestration efficiency (CSE: the ratio of \u0394SOC over OCI) in 0\u201320\u202fcm and 0\u201360\u202fcm. The fertilization treatments include cropping with no fertilization (CK), chemical nitrogen, phosphorus and potassium fertilizers (NPK) and combined chemical fertilizers and manure (NPKM). Results showed SOC stock significantly increased with fertilizations (i.e. initial, CK", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2018.10.033"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2018.10.033", "name": "item", "description": "10.1016/j.geoderma.2018.10.033", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2018.10.033"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-03-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2020.114237", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2020-02-06", "title": "Model averaging for mapping topsoil organic carbon in France", "description": "Abstract The soil organic carbon (SOC) pool is the largest terrestrial carbon (C) pool and is two to three times larger than the C stored in vegetation and the atmosphere. SOC is a crucial component within the C cycle, and an accurate baseline of SOC is required, especially for biogeochemical and earth system modelling. This baseline will allow better monitoring of SOC dynamics due to land use change and climate change. However, current estimates of SOC stock and its spatial distribution have large uncertainties. In this study, we test whether we can improve the accuracy of the three existing SOC maps of France obtained at national (IGCS), continental (LUCAS), and global (SoilGrids) scales using statistical model averaging approaches. Soil data from the French Soil Monitoring Network (RMQS) were used to calibrate and evaluate five model averaging approaches, i.e., Granger-Ramanathan, Bias-corrected Variance Weighted (BC-VW), Bayesian Modelling Averaging, Cubist and Residual-based Cubist. Cross-validation showed that with a calibration size larger than 100 observations, the five model averaging approaches performed better than individual SOC maps. The BC-VW approach performed best and is recommended for model averaging. Our results show that 200 calibration observations were an acceptable calibration strategy for model averaging in France, showing that a fairly small number of spatially stratified observations (sampling density of 1 sample per 2500\u00a0km2) provides sufficient calibration data. We also tested the use of model averaging in data-poor situations by reproducing national SOC maps using various sized subsets of the IGCS dataset for model calibration. The results show that model averaging always performs better than the national SOC map. However, the Modelling Efficiency dropped substantially when the national SOC map was excluded in model averaging. This indicates the necessity of including a national SOC map for model averaging, even if produced with a small dataset (i.e., 200 samples). This study provides a reference for data-poor countries to improve national SOC maps using existing continental and global SOC maps.", "keywords": ["Soil organic carbon", "[SDV]Life Sciences [q-bio]", "cartographie num\u00e9rique des sols", "04 agricultural and veterinary sciences", "Data-poor countries", "cartographie num\u00e9rique du sol", "15. Life on land", "01 natural sciences", "soil sciences", "sciences du sol", "[SDV] Life Sciences [q-bio]", "Digital soil mapping", "Sample size requirement", "13. Climate action", "Bias-corrected Variance Weighted", "carbone organique du sol", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://hal.science/hal-02473703/file/revised%20accepted%20version%20Chen%20et%20al.pdf"}, {"href": "https://doi.org/10.1016/j.geoderma.2020.114237"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2020.114237", "name": "item", "description": "10.1016/j.geoderma.2020.114237", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2020.114237"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-05-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2019.03.036", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2019-03-30", "title": "Soil organic carbon changes following wetland cultivation: A global meta-analysis", "description": "Abstract Wetland cultivation has a profound effect on soil organic carbon (SOC) and global soil carbon cycles. However, the global patterns of the changes in SOC following wetland cultivation are still not well understood, especially with respect to the conditions under which SOC can increase in cultivated wetlands. We synthesized the results from 64 study sites and carried out a meta-analysis to quantify the changes in SOC following wetland cultivation and identify the underlying mechanisms. Although wetland cultivation led to a reduction in SOC under most conditions, wetland cultivation may result in an increase (p", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2019.03.036"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2019.03.036", "name": "item", "description": "10.1016/j.geoderma.2019.03.036", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2019.03.036"}, {"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": "10.1016/j.geoderma.2019.114061", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2019-11-28", "title": "High-resolution and three-dimensional mapping of soil texture of China", "description": "The lack of detailed three-dimensional soil texture information largely restricts many applications in agriculture, hydrology, climate, ecology and environment. This study predicted 90 m resolution spatial variations of sand, silt and clay contents at a national extent across China and at multiple depths 0\u20135, 5\u201315, 15\u201330, 30\u201360, 60\u2013100 and 100\u2013200 cm. We used 4579 soil profiles collected from a national soil series inventory conducted recently and currently available environmental covariates. The covariates characterized environmental factors including climate, parent materials, terrain, vegetation and soil conditions. We constructed random forest models and employed a parallel computing strategy for the predictions of soil texture fractions based on its relationship with the environmental factors. Quantile regression forest was used to estimate the uncertainty of the predictions. Results showed that the predicted maps were much more accurate and detailed than the conventional linkage maps and the SoilGrids250m product, and could well represent spatial variation of soil texture across China. The relative accuracy improvement was around 245\u2013370% relative to the linkage maps and 83\u2013112% relative to the SoilGrids250m product with regard to the R2, and it was around 24\u201326% and 14\u201319% respectively with regard to the RMSE. The wide range between 5% lower and 95% upper prediction limits may suggest that there was a substantial room to improve current predictions. Besides, we found that climate and terrain factors are major controllers for spatial patterns of soil texture in China. The heat and water-driven physical and chemical weathering and wind-driven erosion processes primarily shape the pattern of clay content. The terrain, wind and water-driven deposition, erosion and transportation sorting processes of soil particles primarily shape the pattern of silt. The findings provide clues for modeling future soil evolution and for national soil security management under the background of global and regional environmental changes.", "keywords": ["2. Zero hunger", "Digital soil mapping", "13. Climate action", "Large extent", "Machine learning", "Environmental factors", "Uncertainty", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2019.114061"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2019.114061", "name": "item", "description": "10.1016/j.geoderma.2019.114061", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2019.114061"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-03-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2019.114149", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2019-12-31", "title": "A meta-analysis of carbon, nitrogen and phosphorus change in response to conversion of grassland to agricultural land", "description": "Abstract The conversion of grassland to agricultural land is an important land use change that affects soil stocks and concentrations of C, N and P, as well as their stoichiometric ratios. However, the response mechanism of soil C, N and P change to grassland conversion remains unclear. Here, we conducted a meta-analysis of 92 studies and showed that the C and N stocks mainly depended on soil depth, conversion duration and precipitation, while the P response was insensitive to these factors. Moreover, C, N and P losses were also correlated with soil physical\u2013chemical properties (pH, sand, silt, clay). Changes in the response ratios of C:N, C:P and N:P indicated that soil C and N were more sensitive than P to grassland conversion. These results suggest that land use management policies should protect natural grasslands, especially in the arid and semi-arid regions, to minimize soil C, N and P loss.", "keywords": ["2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Qiuwen Zhan, Junli Du, Ren Lantian, Shucheng Li, Hao Bing, Shiming Tang, Chen Lei, Junhu Xu, Gao Qinghai, Shao Qingqin,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2019.114149"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2019.114149", "name": "item", "description": "10.1016/j.geoderma.2019.114149", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2019.114149"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-04-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2021.115656", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2021-12-15", "title": "A framework for determining the total salt content of soil profiles using time-series Sentinel-2 images and a random forest-temporal convolution network", "description": "Soil salinization causes a deterioration in soil health and threatens crop growth. Rapid identification of salinization in farmlands is of great significance to improve soil functions and to maintain sustainable land management. As salt moves in soil profiles during plowing and irrigation, the commonly used protocol for measuring and monitoring salt content in topsoil does not provide a thorough assessment. In order to quantify and comprehensively evaluate the salt content in deep soil, this study developed a novel framework for monitoring total salt content in the soil profile to a depth of 1 m by combining information from time-series satellite images and machine learning. The field experiments were conducted in Alar, Southern Xinjiang, with a total of 120 soil samples and 582 measurements of EM38-MK2 apparent electrical conductivity in 2019 and 2020 to quantify the vertical variation in the salt content. A total of 42 covariates derived from time-series Sentinel-2 images, including 20 salinity indices, 10 soil indices, and 12 vegetation indices were used for modeling salinity in the soil profile. From the total covariates, 22 were selected using the Random Forest. Soil salinity which was modeled using a Temporal Convolution Network in 2019 and 2020 and forecast for 2021. The model effectively revealed the spatial and temporal variability of the salt content in the soil profile with R2 of 0.71 and 0.65 for 2019 and 2020, respectively. The proposed new framework provides an effective method to estimate the salt content in the soil profile for precision agriculture in arid and semi-arid regions.", "keywords": ["2. Zero hunger", "Soil salinity", "Random Forest", "13. Climate action", "Time-series images", "Soil profile", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "Temporal Convolution Network"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2021.115656"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2021.115656", "name": "item", "description": "10.1016/j.geoderma.2021.115656", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2021.115656"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-03-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2022.115935", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:04Z", "type": "Journal Article", "created": "2022-05-20", "title": "Improving remote sensing of salinity on topsoil with crop residues using novel indices of optical and microwave bands", "description": "Remote sensing indices have been proposed to characterize soil salinity. However, the sensitivity of these indicators is unstable owing to differences in geographic environment and vegetation type. This study investigated the performance of several existing indices to estimate the salinity of topsoil with residues in southern Xinjiang, China. The results showed that these indices were not satisfactory. In order to construct an index that can be used to directly indicate soil salinity in a specific area, novel salinity indices were calculated using optical bands (blue, green, red, vegetation red edge, and shortwave infrared bands) derived from Sentinel-2 multispectral data and Sentinel-1 radar data (backscattering coefficient VV, VH). To enhance the sensitivity of the optical bands, five transformation methods (logarithmic, reciprocal, first-, second-, and third-derivative) were applied to the original spectra. Based on previous studies, statistical methods were used to construct two-, three-, and four-bands indices. One constructed three-bands index with the second-derivative transformation, called the Enhanced Residues Soil Salinity Index (ERSSI), showed the highest correlation with topsoil salinity (r = 0.65 and 0.68 in training and testing). ERSSI establishes a linear relationship in soil salinity estimation with an R2 of 0.53 and a LCCC of 0.65 in training dataset, with an R2 of 0.51 and a LCCC of 0.73 in testing dataset. And it shows contribution in random forest regression with an R2 of 0.80 and a LCCC of 0.86 in training dataset, with an R2 of 0.77 and a LCCC of 0.81 in testing dataset. The ERSSI consisted of the B, G, and SWIR1 bands, and was sensitive to salinity variations in the residues remaining in farmland soils. This study provides a novel index and method for the accurate and robust assessment and mapping of salinity in farmland covered by crop residues.", "keywords": ["2. Zero hunger", "Soil salinity", "Residues remained soil", "Indices constructions", "Spectral response", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Sentinel-2", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2022.115935"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2022.115935", "name": "item", "description": "10.1016/j.geoderma.2022.115935", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2022.115935"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2024.116825", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:05Z", "type": "Journal Article", "created": "2024-02-24", "title": "Organic carbon stabilization in temperate paddy fields and adjacent semi-natural forests along a soil age gradient", "description": "Rice paddy soils have high organic carbon (OC) storage potential, but predicting OC stocks in these soils is difficult due to the complex OC stabilization mechanisms under fluctuating redox conditions. Especially in temperate climates, these mechanisms remain understudied and comparisons to OC stocks under natural vegetation are scarce. Semi-natural forests could have similar or higher OC inputs than rice paddies, but in the latter mineralization under anoxic conditions and interactions between OC and redox-sensitive minerals (in particular Fe oxyhydroxides, hereafter referred to as Fe oxides) could promote OC stabilization. Moreover, management-induced soil redox cycling in rice paddies can interact with pre-existing pedogenetic differences of soils having different degrees of evolution. To disentangle these drivers of soil OC stocks, we focused on a soil age gradient in Northern Italy with a long (30\u00a0+\u00a0years) history of rice cultivation and remnant semi-natural forests. Irrespective of soil age, soils under semi-natural forest and paddy land-use showed comparable OC stocks. While, in topsoil, stocks of crystalline Fe and short-ranged Fe and Al oxides did not differ between land-uses, under paddy management more OC was found in the mineral-associated fraction. This hints to a stronger redox-driven OC stabilization in the paddy topsoil compared to semi-natural forest soils that might compensate for the presumed lower OC inputs under rice cropping. Despite the higher clay contents over the whole profile and more crystalline pedogenetic Fe stocks in the topsoil in older soils, OC stocks were higher in the younger soils, in particular in the 50\u201370\u00a0cm layer, where short-range ordered pedogenetic oxides were also more abundant. These patterns might be explained by differences in hydrological flows responsible for the translocation of Fe and dissolved OC to the subsoil, preferentially in the younger, coarse-textured soils. Taken together, these results indicate the importance of the complex interplay between redox-cycling affected by paddy-management and soil-age related hydrological properties.", "keywords": ["2. Zero hunger", "Science", "Q", "Soil Science", "Soil carbon storage", "04 agricultural and veterinary sciences", "15. Life on land", "Markvetenskap", "01 natural sciences", "Particulate organic carbon", "Fe oxyhydroxides", "0401 agriculture", " forestry", " and fisheries", "Rice paddy soil", "Mineral associated organic carbon", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://iris.unito.it/bitstream/2318/1963515/1/Geoderma_443_116825.pdf"}, {"href": "https://doi.org/10.1016/j.geoderma.2024.116825"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2024.116825", "name": "item", "description": "10.1016/j.geoderma.2024.116825", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2024.116825"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-03-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2024.116920", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:05Z", "type": "Journal Article", "created": "2024-05-24", "title": "A standard and protocol for in-situ measurement of surface soil reflectance", "description": "This study introduces an innovative standard and protocol approach for accurate assessment and harmonization of undisturbed soil surface spectra under field conditions, achieving laboratory-grade precision, while minimizing systematic discrepancies. The SoilPRO\u00ae assembly was employed for its efficacy in precisely measuring seven different soil samples under similar field and laboratory conditions in six different laboratories. While some discrepancies were noted in and between field and laboratory measurements, aligning the laboratory measurements with a reference sample, Lucky Bay (LB) internal soil standard (ISS), significantly reduced variations across different laboratory settings. A similar approach was employed to align field spectra using a field ISS (FISS), which could be practically applied in the field and adjusted to the laboratory reference LB before utilization. Correcting to the FISS facilitated the alignment of field reflectance among the six laboratories and closely matched with laboratory ISS measurements adjusted to the LB standard. This alignment of field reflectance with ISS-corrected laboratory measurements represents a ground-breaking achievement in field soil spectroscopy, which suffers from instabilities. It not only ensures preservation of the soil surface condition in the field, but also enables objective comparisons with all soil spectral libraries (SSLs) measurements and robust harmonization of field spectral data from different sources. The suggested method masks out technical aspects of spectral measurements in the field and prepares the signals to be analyzed for the physicochemical characteristics of the soil surface. The current study marks the first use of a controlled method for soil-surface spectroscopy measurements, opening a path for the construction of in-situ field SSLs. This advancement represents a significant step toward obtaining more accurate and standardized soil analyses of diverse surface properties under field conditions.", "keywords": ["EJP SOIL", "ProbeField", "EJPSOIL", "Science", "Q", "Field soil reflectance", "Field protocol", "0401 agriculture", " forestry", " and fisheries", "Field spectral harmonization", "Filed soil spectral library", "04 agricultural and veterinary sciences", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2024.116920"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2024.116920", "name": "item", "description": "10.1016/j.geoderma.2024.116920", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2024.116920"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-07-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2024.117027", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:05Z", "type": "Journal Article", "created": "2024-09-14", "title": "Comparing LUCAS Soil and national systems: Towards a harmonized European Soil monitoring network", "description": "Open AccessPeer reviewed", "keywords": ["Europe", "Science", "Soil health", "Q", "Soil monitoring", "Soil monitoring ; Soil health ; Policies ; Europe ; LUCAS Soil", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "Policies", "630", "LUCAS Soil"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2024.117027"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2024.117027", "name": "item", "description": "10.1016/j.geoderma.2024.117027", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2024.117027"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-09-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2025.117290", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:05Z", "type": "Journal Article", "created": "2025-04-11", "title": "Soil structural indicators as predictors of biological activity under various soil management practices", "description": "Soil structure is a key feature in controlling the turnover of organic matter in soils. The spatial arrangement of solids and pores in agricultural topsoil can be actively influenced by management practices, such as tillage and cropping systems, which in turn can affect the resident microbial communities and their activities. However, carbon mineralisation and microbial activity are usually measured in sieved samples, which provides information on gross potentials under optimal conditions. Under these conditions, the spatial heterogeneities that are specific to different management practices are reduced or totally removed. In this study, we combined X-ray computer tomography (X-ray CT) and isothermal calorimetry to investigate the effect of soil structure on heat dissipation, as an indicator of biological activity. Samples were collected from the topsoil of a long-term field experiment (12\u00a0years) that included four different land uses: conventional vs. reduced tillage, each with either maize or winter wheat as the main crop in the rotation. We compared the response of undisturbed soil cores (3\u00a0cm in height, 2.7\u00a0cm in diameter) to the addition of water and glucose in specific pore sizes, ranging in radii of 15 to 75\u00a0\u00b5m or 3 to 75\u00a0\u00b5m. The pore structure and indicators of particulate organic material were quantified using X-ray CT with a voxel resolution of 15\u00a0\u00b5m. This allowed us to distinguish between the effects of crop rotation and tillage regime on biological activity, soil structure and the feedback between the two. Heat dissipation correlated significantly with X-ray CT derived porosity, pore surface density and soil matrix grey value, all of which were affected by both tillage regime and crop rotation. Heat dissipation in maize plots after glucose addition to the pore size range with radii of 3 to 75\u00a0\u00b5m was greater than in the winter wheat systems, but not when added to the pore size range with radii of 15 to 75\u00a0\u00b5m. The study showed that structural indicators can explain up to 81\u00a0% and 95\u00a0% of the variance in total heat dissipation after glucose and water addition, respectively, but only 60\u00a0% of the heat dynamics, here defined as the time taken for 50\u00a0% of total heat to be dissipated. The results emphasise the importance of soil structure in regulating microbial decomposition of soil organic matter and warrants further investigations.", "keywords": ["X-ray CT", "Crop rotation", "Biological activity", "Science", "Soil structure", "Q", "[SDU.STU] Sciences of the Universe [physics]/Earth Sciences", "Soil Science", "Tillage regime", "Micro-habitat", "Calorimetry"]}, "links": [{"href": "https://pub.epsilon.slu.se/37077/1/leuther-f-et-al-20250508.pdf"}, {"href": "https://doi.org/10.1016/j.geoderma.2025.117290"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2025.117290", "name": "item", "description": "10.1016/j.geoderma.2025.117290", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2025.117290"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-05-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2025.117299", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:05Z", "type": "Journal Article", "created": "2025-04-19", "title": "Synchrotron-based 3D X-ray computed tomography reveals root system architecture: Plastic responses to phosphorus placement", "description": "We used synchrotron-based X-ray computed tomography (SRXCT) to visualize root distribution in soil cores. X-ray CT is emerging as a leading technique to study plant roots, but SRXCT offers potential advantages compared with conventional X-ray sources, including producing X-rays of higher intensity that are collimated, monochromatic and tuneable; delivering high-resolution data whilst avoiding issues such as beam-hardening and source divergence. We demonstrate the suitability of SRXCT for observing the root system of wheat plants growing in two soils (Calcisol and Ultisol) in response to placement of different phosphorus fertilisers. To optimize scanning quality, we tested the use of an inverse \u2018mask\u2019 in front of the soil cores to achieve a more uniform attenuation along the sample, thereby avoiding saturation of the detector along the thinnest parts of the soil cores. Secondly, we developed a deep learning approach for segmentation and quantification of root length and diameter. Our results demonstrate the use of SRXCT as a tool for studying root system architecture in soil at high spatial resolution. The SRXCT method marks a new stride towards advancing our understanding of root structures in unprecedented detail, opening further avenues for exploring plant-soil interactions.", "keywords": ["X-ray computed tomography", "Image segmentation", "Plant roots", "Root system architecture", "Soil phosphorus", "Science", "Q", "Root distribution", "Synchrotron"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2025.117299"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2025.117299", "name": "item", "description": "10.1016/j.geoderma.2025.117299", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2025.117299"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-05-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ro&offset=3900&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ro&offset=3900&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "prev", "title": "items (prev)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ro&offset=3850", "hreflang": "en-US"}, {"rel": "next", "type": "application/geo+json", "title": "items (next)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ro&offset=3950", "hreflang": "en-US"}], "numberMatched": 20024, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-04-04T12:59:21.309672Z"}