{"type": "FeatureCollection", "features": [{"id": "10.1016/j.orggeochem.2014.05.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:04Z", "type": "Journal Article", "created": "2014-05-13", "title": "Fate Of Biochar In Chemically- And Physically-Defined Soil Organic Carbon Pools", "description": "Open AccessThe authors acknowledge all the assistance of AgResearch, Grasslands Research Centre, Palmerston North, New Zealand. The valuable suggestions of R. Gentile as well as the technical assistance of B. Toes, T. Maruyama, M. Vazquez and A. Singh are also appreciated. H.M.S.K.H. was funded by the New Zealand Biochar Research Centre, under the Massey University Doctoral Scholarship Programme. Financial support was covered by the Ministry of Agriculture and Forestry, New Zealand and the New Zealand Agricultural Greenhouse gas Research Centre.", "keywords": ["2. Zero hunger", "Biochar", "4. Education", "0401 agriculture", " forestry", " and fisheries", "Microaggregates", "Clays", "Fractionation", "04 agricultural and veterinary sciences", "Corn stover", "15. Life on land", "Particulate organic matter (POM)", "Silt"]}, "links": [{"href": "https://doi.org/10.1016/j.orggeochem.2014.05.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Organic%20Geochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.orggeochem.2014.05.001", "name": "item", "description": "10.1016/j.orggeochem.2014.05.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.orggeochem.2014.05.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-08-01T00:00:00Z"}}, {"id": "10.1006/jare.2000.0775", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:14:29Z", "type": "Journal Article", "created": "2002-09-17", "title": "Organic C, N And P In Size Fractions Of Virgin And Cultivated Soils Of The Semi-Arid Pampa Of Argentina", "description": "Nutrient and organic carbon (OC) losses are important components of the soil degradation processes produced by continuous agriculture. It was hypothesized that coarse textured soils will be more affected by cultivation than fine textured ones. The purpose of this study was to evaluate the status of OC, total nitrogen (Nt), and three phosphorous fractions (total inorganic, Pi; organic, Po; and available, Pa) in different textured virgin (under Prosopis caldenia forest) and cultivated soils of the semi-arid pampa of Argentina. Three virgin and non-fertilized cultivated soil pairs, representative from soils of the region, were selected for this study: two fine sandy loam Entic Haplustolls and a sandy Typic Ustipsamment. The element content of each soil was analysed from the <0\u00b71-mm to 0\u00b71\u20132-mm sized aggregates. Results indicated that cultivation decreased the OC, Po and Pi contents in fine aggregates of the fine textured soils, and in coarse aggregates of the coarse textured soil. Plant absorption and wind erosion were probably the main processes which decreased element contents in both textural soil types. It was speculated that in the sandy soil the elements lost from fine sized aggregates were restored by the break down of the weak coarse aggregates produced by tillage. The C/N ratios showed mostly small changes due to cultivation, indicating that no changes of organic matter quality occurred. Only the sandy soil showed C/N increases in the fine sized aggregates and decreases in the coarse sized aggregates. The C/Po quotients were not changed by cultivation, indicating that the qualitative composition of P organic compounds remained unchanged. Large OC decreases and Pa increases after cultivation detected in one of the fine textured soil were apparently linked to the occurrence of natural fires.", "keywords": ["2. Zero hunger", "Particulate Organic Matter", "Soil Degradation", "https://purl.org/becyt/ford/1.5", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "https://purl.org/becyt/ford/1"]}, "links": [{"href": "https://doi.org/10.1006/jare.2000.0775"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Arid%20Environments", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1006/jare.2000.0775", "name": "item", "description": "10.1006/jare.2000.0775", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1006/jare.2000.0775"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-08-01T00:00:00Z"}}, {"id": "10.1007/s00374-005-0832-0", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:14:43Z", "type": "Journal Article", "created": "2005-02-17", "title": "Carbon And Nitrogen Dynamics In A Phosphorus-Deficient Soil Amended With Organic Residues And Fertilizers In Western Kenya", "description": "The contribution of organic resources to the restoration of soil fertility in smallholder farming systems in East Africa is being tested as an alternative to costly fertilizers. Organic inputs are expected to have advantages over fertilizers by affecting many biochemical properties controlling nutrient cycling. Our study examined changes in soil C and N, C and N mineralization, microbial biomass C (MBC) and N (MBN), and particulate organic matter (POM) in a P-limiting soil in western Kenya after applications of organic residues and fertilizers to overcome P limitation to crops. Leaf biomass from six different tree (shrub) species was incorporated into the soil at 5 Mg ha\u22121 for five consecutive maize growing seasons, over 2.5 years. Triple superphosphate was applied separately at 0, 10, 25, 50, and 150 kg P ha\u22121 in combination with 120 kg N ha\u22121 as urea. Soil inorganic N, soil organic C, mineralizable N, and total C in all POM fractions and total N in the 53- to 250-\u03bcm POM fraction increased following addition of all organic residues compared to the control. Whether there was an advantage of organic residue incorporation over inorganic fertilizer use depended on the soil parameter studied, the organic residue and the rate of fertilization. Most differences were found in N mineralization where 14.4\u201321.6 mg N kg\u22121 was mineralized in fertilizer treatments compared to 25.2\u201330.5 mg N kg\u22121 in organic residue treatments. C and N mineralization and the 53- to 250-\u03bcm POM fractions were the most sensitive parameters, correlating with most of the studied parameters. Organic residues can contribute to improved soil nutrient cycling while the magnitude of their contribution depends on the biochemical properties of the residues.", "keywords": ["2. Zero hunger", "phosphorus fertilizer", "13. Climate action", "microbial biomass carbon", "leaf biomass", "0401 agriculture", " forestry", " and fisheries", "mineralization", "04 agricultural and veterinary sciences", "15. Life on land", "particulate organic matter", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1007/s00374-005-0832-0"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biology%20and%20Fertility%20of%20Soils", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00374-005-0832-0", "name": "item", "description": "10.1007/s00374-005-0832-0", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00374-005-0832-0"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-02-18T00:00:00Z"}}, {"id": "10.1007/s11104-005-5675-9", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:11Z", "type": "Journal Article", "created": "2005-11-16", "title": "Increased Quantity And Quality Of Coarse Soil Organic Matter Fraction At Elevated Co2 In A Grazed Grassland Are A Consequence Of Enhanced Root Growth Rate And Turnover", "description": "The aims of this study were to determine whether elevated atmospheric CO2 concentration modifies plant organic matter (OM) fluxes to the soil and whether any change in the fluxes can modify soil OM accumulation. Measurements were made in a grazed temperate grassland after almost 4\u00a0years exposure to elevated atmospheric CO2 (475\u00a0\u03bcl\u00a0l-1) using a Free Air CO2 Enrichment (FACE) facility located in the North Island of New Zealand. Aboveground herbage biomass and leaf litter production were not altered by elevated CO2 but root growth rate, as measured with the ingrowth core method, and root turnover were strongly stimulated by elevated CO2 particularly at low soil moisture contents during summer. Consequently, significantly more plant material was returned to the soil under elevated CO2 leading to an accumulation of coarse (> 1\u00a0mm) particulate organic matter (POM) but not of finer POM fractions. The accumulating POM exhibited a lower C/N ratio, which was attributed to the higher proportion of legumes in the pasture under elevated CO2. Only small changes were detected in the size and activity of the soil microbial biomass in response to the POM accumulation, suggesting that higher organic substrate availability did not stimulate microbial growth and activity despite the apparent lower C/N ratio of accumulating POM. As a result, elevated CO2 may well lead to an accumulation of OM in grazed grassland soil in the long term.", "keywords": ["580", "2. Zero hunger", "PARTICULATE ORGANIC MATTER", "ANTHOXANTHUM ODORATUM", "ROOT GROWTH", "04 agricultural and veterinary sciences", "15. Life on land", "ROOT TURNOVER", "C SEQUESTRATION", "FACE", "13. Climate action", "INGROWTH CORE", "HYPOCHOERIS RADICATA", "[SDV.BV]Life Sciences [q-bio]/Vegetal Biology", "0401 agriculture", " forestry", " and fisheries", "[SDV.BV] Life Sciences [q-bio]/Vegetal Biology"]}, "links": [{"href": "https://doi.org/10.1007/s11104-005-5675-9"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-005-5675-9", "name": "item", "description": "10.1007/s11104-005-5675-9", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-005-5675-9"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-10-01T00:00:00Z"}}, {"id": "10.1007/s11104-015-2528-z", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-07-27T16:15:19Z", "type": "Journal Article", "created": "2015-05-28", "title": "How Does Soil Particulate Organic Carbon Respond To Grazing Intensity In Permanent Grasslands?", "description": "Modification in grazing intensity causes functional changes in permanent grasslands, e.g. in carbon (C) cycling. However, we still know little about how the soil organic C of permanent grasslands responds to grazing intensity. In a grassland experiment with three levels of grazing intensity, we monitored root and rhizome C stocks, particulate organic C stocks, total soil C stocks, above-ground net primary production and plant species groups abundance over 7\u00a0years. A simple model was used to estimate the mortality of roots and rhizomes, decomposition rates of particulate organic C, and C fluxes under different grazing intensities. After 7\u00a0years, low grazing intensity and no grazing led to a modification in above-ground vegetation (production, plant species composition, nitrogen content) and a reduction in C transferred between roots and particulate organic matter fractions, while the C stocks of root and rhizomes, particulate organic matter and total soil were not significantly affected by grazing intensity. However, particulate organic C showed a strong interannual variability. Particulate organic C could have reacted more slowly than expected to changes in grazing intensity, or a marked interannual variability of particulate organic C stocks, through an increase in decomposition rates in all the grazing treatments, could have slowed down the accumulation of particulate organic C and masked the effect of the grazing intensity treatments.", "keywords": ["580", "Carbon cycling", "2. Zero hunger", "0106 biological sciences", "Decomposition rates", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "630", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "Particulate organic matter", "13. Climate action", "Grazing intensity", "Grassland ecosystem", "0401 agriculture", " forestry", " and fisheries", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology"]}, "links": [{"href": "https://doi.org/10.1007/s11104-015-2528-z"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-015-2528-z", "name": "item", "description": "10.1007/s11104-015-2528-z", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-015-2528-z"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-05-28T00:00:00Z"}}, {"id": "10.5281/zenodo.5987415", "type": "Feature", "geometry": null, "properties": {"license": "Embargo", "updated": "2026-07-27T16:24:31Z", "type": "Dataset", "title": "Synthesis data for manuscript: Global stocks and capacity of mineral-associated soil organic carbon", "description": "Supporting synthesis data for manuscript: Georgiou K., Jackson R. B., Vindu\u0161kov\u00e1 O., Abramoff R. Z., Ahlstr\u00f6m A., Feng W., Harden J. W., Pellegrini A. F. A., Polley H. W., Soong J. L., Riley W. J., Torn M. S. Global stocks and capacity of mineral-associated soil organic carbon. <em>Nature Communications</em>, 2022. We performed an observational synthesis of soil fractionation data constituting 1,144 globally-distributed soil profiles from 78 studies that reported fractionation and bulk measurements of organic carbon across depths. This dataset includes measurements of mineral-associated, particulate, and bulk soil organic carbon, as well as ancillary data on edaphic, climate, and vegetation characteristics. We also performed a separate observational synthesis of soil carbon accrual from manipulation and chronosequence studies, which included changes in carbon stocks or concentrations, bulk density, experimental duration, and edaphic properties. This latter synthesis included 103 observations from 34 studies that spanned crop, pasture, grassland, and forest ecosystems across climates and soil types. Further details for both syntheses can be found in the methods and supplementary materials of the associated manuscript.", "keywords": ["2. Zero hunger", "mineral-associated organic matter", "biogeochemistry", "soil organic matter", "15. Life on land", "carbon storage", "soil fractions", "particulate organic matter"], "contacts": [{"organization": "Georgiou, Katerina, Jackson, Robert B., Vindu\u0161kov\u00e1, Olga, Abramoff, Rose Z., Ahlstr\u00f6m, Anders, Feng, Wenting, Frouz, Jan, Harden, Jennifer W., Pellegrini, Adam. F. A., Polley, H. Wayne, Soong, Jennifer L., Riley, William J., Torn, Margaret S.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.5987415"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.5987415", "name": "item", "description": "10.5281/zenodo.5987415", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.5987415"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.1016/j.ecolind.2018.12.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:16Z", "type": "Journal Article", "created": "2018-12-12", "title": "Sensitivity of labile carbon fractions to tillage and organic matter management and their potential as comprehensive soil quality indicators across pedoclimatic conditions in Europe", "description": "Abstract   Soil quality is defined as the capacity of the soil to perform multiple functions, and can be assessed by measuring soil chemical, physical and biological parameters. Among soil parameters, labile organic carbon is considered to have a primary role in many soil functions related to productivity and environmental resilience. Our study aimed at assessing the suitability of different labile carbon fractions, namely dissolved organic carbon (DOC), hydrophilic DOC (Hy-DOC), permanganate oxidizable carbon (POXC, also referred to as Active Carbon), hot water extractable carbon (HWEC) and particulate organic matter carbon (POMC) as soil quality indicators in agricultural systems. To do so, we tested their sensitivity to two agricultural management factors (tillage and organic matter input) in 10 European long-term field experiments (LTEs), and we assessed the correlation of the different labile carbon fractions with physical, chemical and biological soil quality indicators linked to soil functions. We found that reduced tillage and high organic matter input increase concentrations of labile carbon fractions in soil compared to conventional tillage and low organic matter addition, respectively. POXC and POMC were the most sensitive fractions to both tillage and fertilization across the 10 European LTEs. In addition, POXC was the labile carbon fraction most positively correlated with soil chemical (total organic carbon, total nitrogen, and cation exchange capacity), physical (water stable aggregates, water holding capacity, bulk density) and biological soil quality indicators (microbial biomass carbon and nitrogen, and soil respiration).  We conclude that POXC represents a labile carbon fraction sensitive to soil management and that is the most informative about total soil organic matter, nutrients, soil structure, and microbial pools and activity, parameters commonly used as indicators of various soil functions, such as C sequestration, nutrient cycling, soil structure formation and soil as a habitat for biodiversity. Moreover, POXC measurement is relatively cheap, fast and easy. Therefore, we suggest measuring POXC as the labile carbon fraction in soil quality assessment schemes in addition to other valuable soil quality indicators.", "keywords": ["2. Zero hunger", "Hydrophilic dissolved organic carbon (Hy-DOC)", "Permanganate oxidizable carbon (POXC)", "04 agricultural and veterinary sciences", "15. Life on land", "Air and water emissions", "Particulate organic matter carbon (POMC)", "Soil quality", "Soil tillage", "Dissolved organic carbon (DOC)", "13. Climate action", "Biodiversity and ecosystem services", "Long-term experimental field (LTEs)", "Hot water extractable carbon (HWEC)", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1016/j.ecolind.2018.12.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Indicators", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ecolind.2018.12.008", "name": "item", "description": "10.1016/j.ecolind.2018.12.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ecolind.2018.12.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-04-01T00:00:00Z"}}, {"id": "10.1016/j.jenvman.2023.118092", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:57Z", "type": "Journal Article", "created": "2023-05-09", "title": "The effects of biochar on soil organic matter pools are not influenced by climate change", "description": "The sustainability of Mediterranean croplands is threatened by climate warming and rainfall reduction. The use of biochar as an amendment represents a tool to store organic carbon (C) in soil. The vulnerability of soil organic C (SOC) to the joint effects of climate change and biochar application needs to be better understood by investigating its main pools. Here, we evaluated the effects of partial rain exclusion (\u223c30%) and temperature increase (\u223c2\u00a0\u00b0C), combined with biochar amendment, on the distribution of soil organic matter (SOM) into particulate organic matter (POM) and the mineral-associated organic matter (MAOM). A set of indices suggested an increase in thermal stability in response to biochar addition in both POM and MAOM fractions. The MAOM fraction, compared to the POM, was particularly enriched in labile substances. Data from micro-Raman spectroscopy suggested that the POM fraction contained biochar particles with a more ordered structure, whereas the structural order decreased in the MAOM fraction, especially after climate manipulation. Crystalline Fe oxides (hematite) and a mix of ferrihydrite and hematite were detected in the POM and in the MAOM fraction, respectively, of the unamended plots under climate manipulation, but not under ambient conditions. Conversely, in the amended soil, climate manipulation did not induce changes in Fe speciation. Our work underlines the importance of discretely taking into account responses of both MAOM and POM to better understand the mechanistic drivers of SOC storage and dynamics.", "keywords": ["Particulate organic matter", " Mineral-associated organic matter", " Open top chambers", " Fe EXAFS", " Raman spectroscopy", " Thermal analysis", "Take urgent action to combat climate change and its impacts", "550", "Climate Change", "Fe EXAFS", "15. Life on land", "6. Clean water", "Carbon", "Soil", "Open top chamber", "13. Climate action", "Particulate organic matter", "Charcoal", "Raman spectroscopy", "Mineral-associated organic matter", "Particulate Matter", "Thermal analysis", "Open top chambers"]}, "links": [{"href": "https://iris.univr.it/bitstream/11562/1093186/2/JEMA%2c%202023%20-%20The%20effects%20of%20biochar%20on%20SOM%20pools%20are%20not.pdf"}, {"href": "https://doi.org/10.1016/j.jenvman.2023.118092"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jenvman.2023.118092", "name": "item", "description": "10.1016/j.jenvman.2023.118092", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jenvman.2023.118092"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-09-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2015.03.027", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-07-27T16:17:11Z", "type": "Journal Article", "created": "2015-03-13", "title": "Tillage And Crop Residue Management Methods Had Minor Effects On The Stock And Stabilization Of Topsoil Carbon In A 30-Year Field Experiment", "description": "We studied the effects of tillage and straw management on soil aggregation and soil carbon sequestration in a 30-year split-plot experiment on clay soil in southern Finland. The experimental plots were under conventional or reduced tillage with straw retained, removed or burnt. Wet sieving was done to study organic carbon and soil composition divided in four fractions: 1) large macroaggregates, 2) small macroaggregates, 3) microaggregates and 4) silt and clay. To further estimate the stability of carbon in the soil, coarse particulate organic matter, microaggregates and silt and clay were isolated from the macroaggregates. Total carbon stock in the topsoil (equivalent to 200 kg m(-2)) was slightly lower under reduced tillage (5.0 kg m(-2)) than under conventional tillage (5.2 kg m(-2)). Reduced tillage changed the soil composition by increasing the percentage of macroaggregates and decreasing the percentage of microaggregates. There was no evidence of differences in the composition of the macroaggregates or carbon content in the macroaggregate-occluded fractions. However, due to the higher total amount of macroaggregates in the soil, more carbon was bound to the macroaggregate-occluded microaggregates in reduced tillage. Compared with plowed soil, the density of deep burrowing earthworms (Lumbricus terrestris) was considerably higher under reduced tillage and positively associated with the percentage of large macroaggregates. The total amount of microbial biomass carbon did not differ between the treatments. Straw management did not have discernible effects either on soil aggregation or soil carbon stock. We conclude that although reduced tillage can improve clay soil structure, generally the chances to increase topsoil carbon sequestration by reduced tillage or straw management practices appear limited in cereal monoculture systems of the boreal region. This may be related to the already high C content of soils, the precipitation level favoring decomposition and aggregate turnover in the winter with topsoil frost.", "keywords": ["lierot", "olki", "hiili", "01 natural sciences", "630", "soil aggregation", "kevennetty maanmuokkaus", "soil carbon", "particulate organic matter", "0105 earth and related environmental sciences", "2. Zero hunger", "maaper\u00e4", "stubble management", "reduced tillage", "04 agricultural and veterinary sciences", "viljelymaa", "ta4111", "15. Life on land", "kasvinviljely", "13. Climate action", "microbial biomass carbon", "mikro-organismit", "maan rakenne", "0401 agriculture", " forestry", " and fisheries", "Kasvintuotanto", "orgaaninen aines", "earthworm activity"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2015.03.027"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2015.03.027", "name": "item", "description": "10.1016/j.scitotenv.2015.03.027", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2015.03.027"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2023.109110", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:17:30Z", "type": "Journal Article", "created": "2023-06-22", "title": "Priming effects decrease with the quantity of cover crop residues \u2013 Potential implications for soil carbon sequestration", "description": "<p>Meta-analyses suggest a global potential of cover crops to increase soil organic carbon (SOC) stocks, yet with a large variation across studies, which underlines the need to understand the effect of cover crops on carbon (C) sequestration under specific soil and climate conditions. We studied the C sequestration potential from cover crops, based on a Danish long-term field experiment (LTE) initiated in 1997, where SOC and C in the fractions of particulate organic matter (POM) and mineral associated organic matter (MAOM) was measured to 1-m depth. Next, we performed a mesocosm study where the fate of <sup>14</sup>C-labeled cover crop residues (fodder radish, Raphanus sativus L.) and SOC priming were traced in two texturally similar soils from the LTE with different SOC concentrations (2.0 vs. 2.6% SOC). The results showed that cover cropping for up two decades had negligible effect on SOC in POM and MAOM fractions. Yet, the mesocosm study showed considerable overall SOC increases (20\u201325% of added C) when the cover crop C input exceeded rates of 0.2\u20130.3 mg C g<sup>\u22121</sup> in the two soils. This was due to a combination of new SOC formation and priming effects shifting from positive to negative. The input rates of 0.2\u20130.3 mg C g<sup>\u22121</sup> correspond to the C input from cover crops with an aboveground yield of approximately 0.7\u20131.1 Mg dry matter ha<sup>\u22121</sup>, which is a level not always achieved at the field site. The combined observations from the field and mesocosm study suggest that SOC buildup was not constrained by soil C saturation, but rather by low cover crop productivity and/or positive priming effects. Therefore, agricultural management practices (e.g., species choice and sowing time) should be adopted to achieve a sufficient cover crop C input to secure that the positive priming effect is not exceeding the rate of SOC formation.</p>", "keywords": ["2. Zero hunger", "Carbon sequestration", "Cover crops", "Particulate organic matter", "Mineral associated organic matter", "Priming effects", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2023.109110"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2023.109110", "name": "item", "description": "10.1016/j.soilbio.2023.109110", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2023.109110"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-09-01T00:00:00Z"}}, {"id": "10.1016/j.still.2006.08.006", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:36Z", "type": "Journal Article", "created": "2006-09-27", "title": "Long-Term Impact Of Reduced Tillage And Residue Management On Soil Carbon Stabilization: Implications For Conservation Agriculture On Contrasting Soils", "description": "Residue retention and reduced tillage are both conservation agricultural management options that may enhance soil organic carbon (SOC) stabilization in tropical soils. Therefore, we evaluated the effects of long-term tillage and residue management on SOC dynamics in a Chromic Luvisol (red clay soil) and Areni-Gleyic Luvisol (sandy soil) in Zimbabwe. At the time of sampling the soils had been under conventional tillage (CT), mulch ripping (MR), clean ripping (CR) and tied ridging (TR) for 9 years. Soil was fully dispersed and separated into 212\u20132000 mm (coarse sand), 53\u2013212 mm (fine sand), 20\u201353 mm (coarse silt), 5\u201320 mm (fine silt) and 0\u20135 mm (clay) size fractions. The whole soil and size fractions were analyzed for C content. Conventional tillage treatments had the least amount of SOC, with 14.9 mg C g \ufffd 1 soil and 4.2 mg C g \ufffd 1 soil for the red clay and sandy soils, respectively. The highest SOC content was 6.8 mg C g \ufffd 1 soil in the sandy soil under MR, whereas for the red clay soil, TR had the highest SOC content of 20.4 mg C g \ufffd 1 soil. Organic C in the size fractions increased with decreasing size of the fractions. In both soils, the smallest response to management was observed in the clay size fractions, confirming that this size fraction is the most stable. The coarse sand-size fraction was most responsive to management in the sandy soil where MR had 42% more organic C than CR, suggesting that SOC contents of this fraction are predominantly controlled by amounts of C input. In contrast, the fine sand fraction was the most responsive fraction in the red clay soil with a 66% greater C content in the TR than CT. This result suggests that tillage disturbance is the dominant factor reducing C stabilization in a clayey soil, probably by reducing C stabilization within microaggregates. In conclusion, developing viable conservation agriculture practices to optimize SOC contents and long-term agroecosystem sustainability should prioritize the maintenance of C inputs (e.g. residue retention) to coarse textured soils, but should focus on the reduction of SOC decomposition (e.g. through reduced tillage) in fine textured soils. # 2006 Elsevier B.V. All rights reserved.", "keywords": ["organic-matter dynamics", "Soil management", "Conservation agriculture", "Residue management", "no-tillage", "continuous cultivation", "sudano-sahelian conditions", "loam soil", "Tropical agroecosystems", "Tillage", "Agricultural ecosystems", "conventional-tillage", "Field Scale", "Conservation tillage", "2. Zero hunger", "Tropical zones", "Soil organic matter", "microbial biomass", "Particulate organic matter (pom)", "Soil organic carbon", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "crop residue", "fractions", "0401 agriculture", " forestry", " and fisheries", "manure application"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2006.08.006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2006.08.006", "name": "item", "description": "10.1016/j.still.2006.08.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2006.08.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-06-01T00:00:00Z"}}, {"id": "10.1016/j.still.2015.08.011", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:17:45Z", "type": "Journal Article", "created": "2015-09-26", "title": "Soil Organic Matter Fractions As Affected By Tillage And Soil Texture Under Semiarid Mediterranean Conditions", "description": "Open Access37 Pags.- 6 Tabls.- 3 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/01671987", "keywords": ["2. Zero hunger", "Soil organic carbon", "Particulate organic matter", "0401 agriculture", " forestry", " and fisheries", "Mineral-associated organic matter", "04 agricultural and veterinary sciences", "15. Life on land", "Conservation tillage", "Rainfed agriculture", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2015.08.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2015.08.011", "name": "item", "description": "10.1016/j.still.2015.08.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2015.08.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-01T00:00:00Z"}}, {"id": "10.1111/j.1529-8817.2003.00786.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:44Z", "type": "Journal Article", "created": "2009-07-30", "title": "Soil Organic Carbon Pool Changes Following Land-Use Conversions", "description": "Abstract<p>Carbon (C) can be sequestered in the mineral soil after the conversion of intensively cropped agricultural fields to more extensive land uses such as afforested and natural succession ecosystems. Three land\uffe2\uff80\uff90use treatments from the long\uffe2\uff80\uff90term ecological research site at Kellogg biological station in Michigan were compared with a nearby deciduous forest. Treatments included a conventionally tilled cropland, a former cropland afforested with poplar for 10 years and an old field (10 years) succession. We used soil aggregate and soil organic matter fractionation techniques to isolate C pools that (1) have a high potential for C storage and (2) accumulate C at a fast rate during afforestation or succession. These fractions could serve as sensitive indicators for the total change in C content due to land\uffe2\uff80\uff90use changes. At the mineral soil surface (0\uffe2\uff80\uff937\uffe2\uff80\uff83cm), afforesting significantly increased soil aggregation to levels similar to native forest. However, surface soil (0\uffe2\uff80\uff937\uffe2\uff80\uff83cm) C did not follow this trend: soil C of the native forest site (22.9\uffe2\uff80\uff83t\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921) was still significantly greater than the afforested (12.6\uffe2\uff80\uff83t\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921) and succession (15.4\uffe2\uff80\uff83t\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921) treatments. However, when the 0\uffe2\uff80\uff9350\uffe2\uff80\uff83cm soil layer was considered, no differences in total soil C were observed between the cropland and the poplar afforested system, while the successional system increased total soil C (0\uffe2\uff80\uff9350\uffe2\uff80\uff83cm) at a rate of 0.786\uffe2\uff80\uff83t\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921\uffe2\uff80\uff83yr\uffe2\uff88\uff921. Afforested soils sequestered C mainly in the fine intra\uffe2\uff80\uff90aggregate particulate organic matter (POM) (53\uffe2\uff80\uff93250\uffe2\uff80\uff83\uffce\uffbcm), whereas the successional soils sequestered C preferentially in the mineral\uffe2\uff80\uff90associated organic matter and fine intra\uffe2\uff80\uff90aggregate POM C pools.</p>", "keywords": ["2. Zero hunger", "afforesting", "mineral-associated carbon", "0401 agriculture", " forestry", " and fisheries", "intra-aggregate carbon", "04 agricultural and veterinary sciences", "15. Life on land", "carbon sequestration", "particulate organic matter", "6. Clean water", "aggregate stability"]}, "links": [{"href": "https://doi.org/10.1111/j.1529-8817.2003.00786.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1529-8817.2003.00786.x", "name": "item", "description": "10.1111/j.1529-8817.2003.00786.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1529-8817.2003.00786.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-07-01T00:00:00Z"}}, {"id": "10.1111/j.1529-8817.2003.00786.x,", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:44Z", "type": "Journal Article", "created": "2009-07-30", "description": "Abstract<p>Carbon (C) can be sequestered in the mineral soil after the conversion of intensively cropped agricultural fields to more extensive land uses such as afforested and natural succession ecosystems. Three land\uffe2\uff80\uff90use treatments from the long\uffe2\uff80\uff90term ecological research site at Kellogg biological station in Michigan were compared with a nearby deciduous forest. Treatments included a conventionally tilled cropland, a former cropland afforested with poplar for 10 years and an old field (10 years) succession. We used soil aggregate and soil organic matter fractionation techniques to isolate C pools that (1) have a high potential for C storage and (2) accumulate C at a fast rate during afforestation or succession. These fractions could serve as sensitive indicators for the total change in C content due to land\uffe2\uff80\uff90use changes. At the mineral soil surface (0\uffe2\uff80\uff937\uffe2\uff80\uff83cm), afforesting significantly increased soil aggregation to levels similar to native forest. However, surface soil (0\uffe2\uff80\uff937\uffe2\uff80\uff83cm) C did not follow this trend: soil C of the native forest site (22.9\uffe2\uff80\uff83t\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921) was still significantly greater than the afforested (12.6\uffe2\uff80\uff83t\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921) and succession (15.4\uffe2\uff80\uff83t\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921) treatments. However, when the 0\uffe2\uff80\uff9350\uffe2\uff80\uff83cm soil layer was considered, no differences in total soil C were observed between the cropland and the poplar afforested system, while the successional system increased total soil C (0\uffe2\uff80\uff9350\uffe2\uff80\uff83cm) at a rate of 0.786\uffe2\uff80\uff83t\uffe2\uff80\uff83C\uffe2\uff80\uff83ha\uffe2\uff88\uff921\uffe2\uff80\uff83yr\uffe2\uff88\uff921. Afforested soils sequestered C mainly in the fine intra\uffe2\uff80\uff90aggregate particulate organic matter (POM) (53\uffe2\uff80\uff93250\uffe2\uff80\uff83\uffce\uffbcm), whereas the successional soils sequestered C preferentially in the mineral\uffe2\uff80\uff90associated organic matter and fine intra\uffe2\uff80\uff90aggregate POM C pools.</p>", "keywords": ["2. Zero hunger", "afforesting", "mineral-associated carbon", "0401 agriculture", " forestry", " and fisheries", "intra-aggregate carbon", "04 agricultural and veterinary sciences", "15. Life on land", "carbon sequestration", "particulate organic matter", "6. Clean water", "aggregate stability"]}, "links": [{"href": "https://doi.org/10.1111/j.1529-8817.2003.00786.x,"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1529-8817.2003.00786.x,", "name": "item", "description": "10.1111/j.1529-8817.2003.00786.x,", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1529-8817.2003.00786.x,"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-07-01T00:00:00Z"}}, {"id": "10.2136/sssaj1998.03615995006200050032x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:21:03Z", "type": "Journal Article", "created": "2010-07-27", "title": "Aggregation And Soil Organic Matter Accumulation In Cultivated And Native Grassland Soils", "description": "Abstract<p>Tillage intensity affects soil structure and the loss of soil organic C and N. We hypothesized that no\uffe2\uff80\uff90tillage (NT) and conventional tillage (CT) differentially affect three physically defined particulate organic matter (POM) fractions. A grassland\uffe2\uff80\uff90derived Haplustoll was separated into aggregates by wet sieving. Free light fraction (LF) and intra\uffe2\uff80\uff90aggregate POM (iPOM) were isolated. Natural abundance 13C was measured for whole soil C, free LF C, and iPOM C. The mean residence time of soil C under CT (44 yr) was 1.7 times less than in NT (73 yr). The amount of free LF C was 174, 196, and 474 g C m\uffe2\uff80\uff902 for CT, NT, and NS, respectively. Total iPOM C amounts in CT, NT, and NS were 193, 337, and 503 g C m\uffe2\uff80\uff902, respectively. The level of fine iPOM C (53\uffe2\uff80\uff93250 \uffc2\uffb5m) level in macroaggregates (250\uffe2\uff80\uff932000 \uffc2\uffb5m) obtained after slaking was five times greater in NT vs. CT and accounted for 47.3% of the difference in total POM C between NT and CT. The amount of coarse iPOM C (250\uffe2\uff80\uff932000 \uffc2\uffb5m) was only 2.4 times greater and accounted for only 21% of the difference in total POM C. Sequestration of iPOM was observed in NT vs. CT, but free LF was not influenced by differential tillage. We conclude that differences in aggregate turnover largely control the difference in fine iPOM in CT vs. NT and consequently SOM loss is affected by both the amount of aggregation and aggregate turnover.</p>", "keywords": ["2. Zero hunger", "Soil organic matter", "Soil management", "Conventional tillage", "Particulate organic matter (pom)", "0401 agriculture", " forestry", " and fisheries", "No-till", "04 agricultural and veterinary sciences", "15. Life on land", "Field Scale", "Conservation tillage"]}, "links": [{"href": "https://doi.org/10.2136/sssaj1998.03615995006200050032x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Science%20Society%20of%20America%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2136/sssaj1998.03615995006200050032x", "name": "item", "description": "10.2136/sssaj1998.03615995006200050032x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj1998.03615995006200050032x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1998-09-01T00:00:00Z"}}, {"id": "10.2136/sssaj2004.1935", "type": "Feature", "geometry": null, "properties": {"license": "Closed Access", "updated": "2026-07-27T16:21:06Z", "type": "Journal Article", "created": "2010-07-27", "description": "<p>Identification of diagnostic soil organic matter (SOM) fractions and the mechanisms controlling their formation and turnover is critical for better understanding of C dynamics in soils. Enhanced microaggregate formation and stabilization of C due to reduced macroaggregate turnover has been proposed as a mechanism promoting C sequestration in no\uffe2\uff80\uff90tillage (NT) compared with conventional tillage (CT) systems in temperate soils dominated by 2:1 clay mineralogy. We evaluated the contribution of macroaggregate\uffe2\uff80\uff90protected microaggregates to total soil organic carbon (SOC) sequestration in NT relative to CT in three soils differing in clay mineralogy: a 2:1 clay\uffe2\uff80\uff90dominated soil (2:1), a soil with mixed clay mineralogy [2:1 and 1:1] and oxides (mixed), and a soil dominated by (1:1) clay minerals and oxides (1:1). Microaggregates (mM) were isolated from macroaggregates from 0\uffe2\uff80\uff90 to 5\uffe2\uff80\uff90 and 5\uffe2\uff80\uff90 to 20\uffe2\uff80\uff90cm soil layers. Particulate organic matter (POM) located within the microaggregates (intra\uffe2\uff80\uff90mM\uffe2\uff80\uff90POM) was separated from POM outside of the microaggregates (inter\uffe2\uff80\uff90mM\uffe2\uff80\uff90POM) and the mineral fraction of the microaggregates (mineral\uffe2\uff80\uff90mM). In all three soils, total SOC as well as microaggregate\uffe2\uff80\uff90associated C (mM\uffe2\uff80\uff90C) was greater with NT compared with CT. Although less than half of the total SOC under NT was associated with the microaggregate fraction, more than 90% of the total difference in SOC between NT and CT was explained by the difference in mM\uffe2\uff80\uff90C in all three soils. Thus, we identified and isolated a fraction that explains almost the entire difference in total SOC between NT and CT across soils characterized by drastically different clay mineralogy.</p>", "keywords": ["Carbon sequestration", "Macroaggregates", "Soil organic matter", "Soil management", "Conventional tillage", "Particulate organic matter (pom)", "Conservation agriculture", "Microaggregates", "No-till", "04 agricultural and veterinary sciences", "15. Life on land", "0401 agriculture", " forestry", " and fisheries", "Field Scale", "Conservation tillage", "Soil organic carbon (soc)"]}, "links": [{"href": "https://doi.org/10.2136/sssaj2004.1935"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Science%20Society%20of%20America%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2136/sssaj2004.1935", "name": "item", "description": "10.2136/sssaj2004.1935", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj2004.1935"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-11-01T00:00:00Z"}}, {"id": "10.3390/agriculture3010072", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:21:42Z", "type": "Journal Article", "created": "2013-02-06", "description": "<p>Corn (Zea mays L.) stover is a potential bioenergy feedstock, but little is known about the impacts of reducing stover return on yield and soil quality in the Northern US Corn Belt. Our study objectives were to measure the impact of three stover return rates (Full (~7.8 Mg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921), Moderate (~3.8 Mg ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921) or Low (~1.5 Mg ha yr\uffe2\uff88\uff921) Return) on corn and soybean (Glycine max. L [Merr.]) yields and on soil dynamic properties on a chisel-tilled (Chisel) field, and well- (NT1995) or newly- (NT2005) established no-till managed fields. Stover return rate did not affect corn and soybean yields except under NT1995 where Low Return (2.88 Mg ha\uffe2\uff88\uff921) reduced yields compared with Full and Moderate Return (3.13 Mg ha\uffe2\uff88\uff921). In NT1995 at 0\uffe2\uff80\uff935 cm depth, particulate organic matter in Full Return and Moderate Return (14.3 g kg\uffe2\uff88\uff921) exceeded Low Return (11.3 g kg\uffe2\uff88\uff921). In NT2005, acid phosphatase activity was reduced about 20% in Low Return compared to Full Return. Also the Low Return had an increase in erodible-sized dry aggregates at the soil surface compared to Full Return. Three or fewer cycles of stover treatments revealed little evidence for short-term impacts on crop yield, but detected subtle soil changes that indicate repeated harvests may have negative consequences if stover removed.</p>", "keywords": ["cellulosic feedstock; sustainability; residue management; bioenergy; dry aggregate stability; FAME; particulate organic matter; microbial biomass; soil organic carbon", "Agriculture (General)", "bioenergy", "7. Clean energy", "S1-972", "dry aggregate stability", "particulate organic matter", "2. Zero hunger", "residue management", "microbial biomass", "cellulosic feedstock", "jel:Q1", "04 agricultural and veterinary sciences", "15. Life on land", "sustainability", "FAME", "6. Clean water", "soil organic carbon", "jel:Q11", "jel:Q10", "jel:Q15", "0401 agriculture", " forestry", " and fisheries", "jel:Q14", "jel:Q13", "jel:Q12", "jel:Q18", "jel:Q17", "jel:Q16"]}, "links": [{"href": "http://www.mdpi.com/2077-0472/3/1/72/pdf"}, {"href": "https://doi.org/10.3390/agriculture3010072"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/agriculture3010072", "name": "item", "description": "10.3390/agriculture3010072", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/agriculture3010072"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-02-06T00:00:00Z"}}, {"id": "10.5061/dryad.70q4744", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:22:25Z", "type": "Dataset", "title": "Data from: Feedbacks between nitrogen fixation and soil organic matter increase ecosystem functions in diversified agroecosystems", "description": "unspecifiedSoil and N2  FixationMerged baseline data  from soil samples collected in fall 2014 or spring 2015 with data on  biological nitrogen fixation by hairy vetch at biomass sampling in spring  of 2016.Soil_2016BNF.csvN2 Fixation 2017Aboveground biomass and nitrogen content for hairy vetch and cereal rye, and biological nitrogen fixation by hairy vetch, measured in May, 2017.BNF2017.csvChange in soilEffect sizes for measured soil properties (i.e., the change in the property following two years of the cover crop mixture compared to the no cover control), calculated by subtracting the final value for each soil parameter measured in the mixture treatment from the final value measured in the no cover crop control at the May 2017 sampling.EffectSizes.csv", "keywords": ["2. Zero hunger", "13. Climate action", "Particulate organic matter", "soil organic matter", "agroecosystem", "Secale cereale L.", "mineralization", "cover crop", "Biological nitrogen fixation", "15. Life on land", "Soil carbon", "Vicia villosa L."], "contacts": [{"organization": "Blesh, Jennifer", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.70q4744"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.70q4744", "name": "item", "description": "10.5061/dryad.70q4744", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.70q4744"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-07-16T00:00:00Z"}}, {"id": "10.4067/s0718-95162011000400004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:22:14Z", "type": "Journal Article", "created": "2012-01-09", "description": "Total and particulate organic matter content in different aggregate sizes can be used as an indicator of land use effect. We hypothesized that tillage reduction increases total (SOC) and particulate soil organic C (POC) contents and the stability of larger aggregates of high-SOC-content Mollisols. Three management systems (continuous pasture (Pp), and continuous cropping under conventional tillage (CT) and notillage (NT)) were evaluated. Oven dried soil samples (0-5 and 5-20 cm), were wet sieved through 2000, 250 and 50 \u00b5m sieves after immersion (IW) and capillary (CW) wetting. Particulate organic matter (>50 \u00b5m) was separated in both the whole soil and in each aggregate fraction, SOC and mineral associated organic C contents were determined, and POC was calculated by subtraction. Reduced soil disturbance (Pp and NT) yielded more SOC and POC in the whole soil and macroaggregates with higher stability (Pp>NT>CT). Under Pp, macroaggregates showed the highest SOC and POC. Under NT, macroaggregates showed higher SOC and POC and aggregate stability than CT though lower than Pp. Less tillage-induced disruption (Pp and NT) led to higher SOC and POC contents in more stable macroaggregates but continuous no-tillage appeared not to be enough to reverse the effects of long lasting conventional management practices on these Mollisols.", "keywords": ["2. Zero hunger", "soil aggregates", "15. Life on land", "tillage systems", "particulate organic matter", "6. Clean water", "aggregate stability"]}, "links": [{"href": "https://doi.org/10.4067/s0718-95162011000400004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20soil%20science%20and%20plant%20nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.4067/s0718-95162011000400004", "name": "item", "description": "10.4067/s0718-95162011000400004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.4067/s0718-95162011000400004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-01-01T00:00:00Z"}}, {"id": "10.5061/dryad.4qrfj6qg2", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-07-27T16:22:24Z", "type": "Dataset", "created": "2023-07-07", "title": "Depth-dependent effects of Ericoid Mycorrhizal shrubs on soil carbon and nitrogen pools are accentuated under Arbuscular Mycorrhizal Trees", "description": "unspecifiedWe worked in a 3,213-ha second-growth, mixed-hardwood forest in  Connecticut, USA (41\u00b057\u2019 N, 72\u00b007\u2019 W). We established 18 10-m radius  plots, each containing a pair of 1-m radius subplots (n =36), evenly  arrayed across three forest stands that contained areas of both high AM  and high EcM tree relative basal area as well as a patchy distribution of  the ErM shrub <em>Kalmia latifolia</em>.\u00a0 \u00a0 \u00a0 \u00a0 \u00a0  \u00a0\u00a0 \u00a0 Within each of the 18  plots, we established paired 1-m radius subplots with and without K.  latifolia in the understory ( \u201c+/- ErM subplot\u201d) within 2 m of the center  of the 10-m radius plot. In each 1-m radius subplot, we measured trees \u22651  cm diameter at breast height (DBH; 1.37 m). We also measured DBH of all  trees \u226520 cm DBH within 10 m and trees \u22655 cm DBH within 5 m of plot  center. We calculated the percentage of EcM tree basal area out of total  basal area, scaled to m2 ha-1. \u00a0  In June 2021, we collected and pooled two soil samples for each  of three depths within the 36 paired subplots (i.e. 18 +ErM and 18 -ErM  subplots). The three depths included: (1) the Oa horizon (depth varied  depending on the thickness of the horizon); (2) the top 10 cm of the A  horizon, beginning at the base of the Oa horizon; and (3) a second,  contiguous A horizon sample that reached a cumulative sampling depth of 30  cm, inclusive of the depth of the Oa horizon. For the organic layer, we  removed the litter layer (i.e. the Oi and Oe horizons) and collected and  pooled two 25 by 25-cm areas of the Oa horizon using a square template.  For the mineral layers, we collected two contiguous depth increments from  the A horizon within the footprint of the 25 by 25-cm areas using a  5.08-cm diameter hammer corer. In each instance, we recorded the exact  sampling depth. Two subplots did not have an Oa horizon, so we collected a  total of 106 samples (3 sites \u00d7 6 plots \u00d7 2 subplots \u00d7 3 depths \u2212 2 Oa  samples). Soils were stored at 4\u00b0C prior to their analysis.  \u00a0 To prepare the soil samples for  analysis, we weighed and homogenized each sample, air dried a  representative subsample of non-sieved soil, and passed the remaining  field-moist sample through a 4-mm sieve. Using the non-sieved subsample,  we estimated the mass and volume of roots and stones and calculated soil  bulk density values. For total soil organic matter (SOM) content, we  heated samples at 550\u00b0C for 12-h in a muffle furnace and calculated loss  on ignition. \u00a0 We used a  modified substrate-induced respiration method as an indicator of active  saprotrophic microbial biomass. Using autolyzed yeast extract solution as  a labile C substrate, we measured rates of CO2 efflux over a 4-h  incubation period with an Infra-Red Gas Analyzer and calculated the rate  of C-CO2 production per unit of equivalent soil dry mass. For  microbially-available C, we estimated potential CO2 production rates over  a 14-d incubation period. We measured CO2 efflux over 24-h periods at days  1, 5, 8, and 14 and integrated the four measurements to calculate  cumulative C-CO2 production. We estimated water holding capacity by  saturating each field-moist sample with water and allowing it to drain  freely for 2 h. To calculate the equivalent dry mass of field-moist  samples, we measured gravimetric water content by oven-drying the samples  to constant mass at 105\u00b0C. \u00a0  We separated the &gt;53 and &lt;53\u2009\u00b5m particle size  fractions to quantify particulate (POM) and mineral-associated soil  organic matter fractions. We passed air-dried samples through a 2-mm sieve  and then dispersed soil aggregates by shaking ~30 g of the sieved,  air-dried sample with 30\u2009mL of sodium hexametaphosphate (NaHMP) solution  for 18 h. We rinsed each sample over a 53-\u00b5m sieve with deionized water  until the water passing through the sieve ran clear. We oven-dried the  &gt;53-\u00b5m fraction retained on the top of the sieve and a  representative subsample of the &lt;53-\u00b5m fraction suspended in  solution at 70\u00b0C. To estimate the mass of the &lt;53-\u00b5m fraction, we  calculated the difference between the initial soil mass (105\u00b0C equivalent)  and the recovered mass of the &gt;53-\u00b5m fraction (105\u00b0C equivalent).  To convert air-dried soil mass to oven-dried mass we dried a subsample of  each air-dried sample at 105\u00b0C. Fractions were ground to a fine powder and  analyzed for total carbon (C) and nitrogen (N) concentrations using a  Costech ESC 4010 Elemental Analyzer. \u00a0  We used an equivalent soil mass approach to calculate soil C,  N, SOM, microbial biomass, and microbially-available C stocks in three  equivalent soil mass layers as well as the sum of the three layers to  estimate cumulative stocks at the subplot level. Following this approach,  we report stocks to a standard soil mass and therefore allow the depth of  the equivalent soil mass layers to vary depending on soil bulk density. To  calculate equivalent soil mass stocks, we added or subtracted elemental  stocks of the deeper soil layer to the upper soil layer in 1-mm increments  until the soil mass from the upper layer is closest to that of the target  soil mass. We chose reference soil masses using the median or target field  sampling depth and the mean bulk density value for each of the three depth  increments to make them roughly equivalent to the sampled depths. Based on  this method, the organic layer had an equivalent mass of ~2.5 kg soil m-2  (median Oa depth = 2.5 cm; mean Oa bulk density = 0.10 g cm-3), the  surface mineral layer had an equivalent mass of ~37 kg soil m-2 (target  sampling depth = 10 cm; mean bulk density = 0.37 g cm-3), and the  subsurface mineral layer had an equivalent mass of ~126 kg soil m-2 (the  target sampling depth was 17.5 cm for a sample with a 2.5 cm Oa depth;  mean bulk density = 0.72 g cm-3). The cumulative equivalent soil mass for  the subplot-level stocks was the sum of the three layers, or ~166 kg soil  m-2.", "keywords": ["equivalent soil mass", "ericoid mycorrhizal fungi", "13. Climate action", "ectomycorrhizal fungi", "Particulate organic matter", "FOS: Biological sciences", "soil nitrogen", "Arbuscular mycorrhizal fungi", "Mineral-associated organic matter", "soil carbon stocks", "15. Life on land"], "contacts": [{"organization": "Ward, Elisabeth", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.4qrfj6qg2"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.4qrfj6qg2", "name": "item", "description": "10.5061/dryad.4qrfj6qg2", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.4qrfj6qg2"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-07-12T00:00:00Z"}}, {"id": "10.5061/dryad.547d7wmf3", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-07-27T16:22:24Z", "type": "Dataset", "created": "2023-08-15", "title": "Data from: Long-term changes in soil carbon and nitrogen fractions in switchgrass, native grasses, and no-till corn bioenergy production systems", "description": "unspecified# Data from: Long-term changes in soil carbon and nitrogen fractions in  switchgrass, native grasses, and no-till corn bioenergy production systems  These files contain data from soil and root samples use in this  publication. The R script uses this data to perform the statistical  analysis used in the publication. ## Description of the data and file  structure The soil and root data contain measured variables within each  experimental unit across multiple years during the study period. The  variable in the R script called 'top_level_directory' can be  changed to the path of the download files' directory to run the  analysis. Note that NA = not available. ## Code/Software There is an R  script provided that conducts the statistical analysis used in this study.  The necessary packages are listed at the top of the script. The variable  in the script called 'top_level_directory' can be changed to the  path of the download files' directory to run the analysis.", "keywords": ["2. Zero hunger", "native grasses", "Biofuel feedstocks", "Biofuel Cropping System Experiment", "soil nitrogen", "Bioenergy feedstock", "FOS: Earth and related environmental sciences", "15. Life on land", "7. Clean energy", "Soil carbon", "Zea mays", "mineral-assoicated organic matter", "Panicum virgatum", "13. Climate action", "Particulate organic matter", "root productivity", "soil aggregate"], "contacts": [{"organization": "Perry, Sophie, Falvo, Grant, Mosier, Samantha, Robertson, G. Philip,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.547d7wmf3"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.547d7wmf3", "name": "item", "description": "10.5061/dryad.547d7wmf3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.547d7wmf3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-08-25T00:00:00Z"}}, {"id": "10.5061/dryad.djh9w0w67", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-07-27T16:22:28Z", "type": "Dataset", "created": "2023-11-08", "title": "Data for: Stabilisation of soil organic matter with rock dust partially counteracted by plants", "description": "unspecifiedIn this study, the effect of rock dust addition on both soil inorganic and  organic carbon contents was investigated. Soil chemical changes were  measured, including soil organic carbon (totals and fractions), soil  inorganic carbon, pH, electric conductivity, and water-extractable and  ammonium acetate-extractable ion levels (Ca, Mg, Al, Fe, Mn, Fe, Zn, Si).  In addition, the effect of plants on soil chemistry and rocks on plant  growth (biomass) and plant ion uptake was studied. The results  demonstrated rock weathering during the 6 months incubation period and a  stabilisation of organic carbon. Plants partially counteracted the  stabilisation of soil organic carbon. This was attributed to interactions  between soil chemical changes induced by rock dust, plant exudation, and  subsequent soil organic carbon stabilisation mechanisms.", "keywords": ["2. Zero hunger", "soil organic carbon", "soil carbon sequestration", "13. Climate action", "Particulate organic matter", "aggregate carbon", "FOS: Earth and related environmental sciences", "15. Life on land", "enhanced rock weathering", "Basalt", "mineral associated organic matter", "6. Clean water", "inorganic carbon"], "contacts": [{"organization": "Buss, Wolfram, Hasemer, Heath, Ferguson, Scott, Borevitz, Justin,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.djh9w0w67"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.djh9w0w67", "name": "item", "description": "10.5061/dryad.djh9w0w67", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.djh9w0w67"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-11-27T00:00:00Z"}}, {"id": "10.5061/dryad.ncjsxksxj", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-07-27T16:22:32Z", "type": "Dataset", "title": "Data for: Cover crop functional types differentially alter the content and composition of soil organic carbon in particulate and mineral-associated fractions", "description": "Cover crops (CCs) can increase soil organic carbon (SOC) sequestration by  providing additional OC residues, recruiting beneficial soil microbiota,  and improving soil aggregation and structure. The various CC species that  belong to distinct plant functional types (PFTs) may differentially impact  SOC formation and stabilization. Biogeochemical theory suggests that  selection of PFTs with distinct litter quality (C:N ratio) should  influence the pathways and magnitude of SOC sequestration. Yet, we lack  knowledge on the effect of CCs from different PFTs on the quantity and  composition of physiochemical pools of SOC. We sampled soils under  monocultures of three CC PFTs (legume [crimson clover]; grass [triticale];  and brassica [canola]) and a mixture of these three species, from a  long-term CC experiment in Pennsylvania, USA. We measured C content in  bulk soil and C content and composition in contrasting physical fractions:  particulate organic matter, POM; and mineral-associated organic matter,  MAOM. The bulk SOC content was higher in all CC treatments compared to the  fallow. Compared to the legume, monocultures of grass and brassica with  lower litter quality (wider C:N) had higher proportion of plant-derived C  in POM, indicating selective preservation of complex structural plant  compounds. In contrast, soils under legumes had greater accumulation of  microbial-derived C in MAOM. Our results for the first time, revealed that  the mixture contributed to a higher concentration of plant-derived  compounds in POM relative to the legume, and a greater accumulation of  microbial-derived C in MAOM compared to monocultures of grass and  brassica. Mixtures with all three PFTs can thus increase the short- and  long-term SOC persistence balancing the contrasting effects on the  chemistries in POM and MAOM imposed by monoculture CC PFTs. Thus, despite  different cumulative C inputs in CC treatments from different PFTs, the  total SOC stocks did not vary between CC PFTs, rather PFTs impacted  whether C accumulated in POM or MAOM fractions. This highlights that CCs  of different PFTs may shift the dominant SOC formation pathways (POM vs.  MAOM), subsequently impacting short- and long-term SOC stabilization and  stocks. Our work provides a strong applied field test of biogeochemical  theory linking litter quality to pathways of C accrual in soil.", "keywords": ["2. Zero hunger", "soil organic carbon", "Plant functional types", "Particulate organic matter", "FOS: Agricultural sciences", "Mineral-associated organic matter", "cover crops", "legume", "15. Life on land", "Biomarkers"], "contacts": [{"organization": "Suseela, Vidya, Zhang, Ziliang, Kaye, Jason, Bradley, Brosi, Amsili, Joseph,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.ncjsxksxj"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.ncjsxksxj", "name": "item", "description": "10.5061/dryad.ncjsxksxj", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.ncjsxksxj"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-04-17T00:00:00Z"}}, {"id": "2904514118", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:27:16Z", "type": "Journal Article", "created": "2018-12-12", "title": "Sensitivity of labile carbon fractions to tillage and organic matter management and their potential as comprehensive soil quality indicators across pedoclimatic conditions in Europe", "description": "Abstract   Soil quality is defined as the capacity of the soil to perform multiple functions, and can be assessed by measuring soil chemical, physical and biological parameters. Among soil parameters, labile organic carbon is considered to have a primary role in many soil functions related to productivity and environmental resilience. Our study aimed at assessing the suitability of different labile carbon fractions, namely dissolved organic carbon (DOC), hydrophilic DOC (Hy-DOC), permanganate oxidizable carbon (POXC, also referred to as Active Carbon), hot water extractable carbon (HWEC) and particulate organic matter carbon (POMC) as soil quality indicators in agricultural systems. To do so, we tested their sensitivity to two agricultural management factors (tillage and organic matter input) in 10 European long-term field experiments (LTEs), and we assessed the correlation of the different labile carbon fractions with physical, chemical and biological soil quality indicators linked to soil functions. We found that reduced tillage and high organic matter input increase concentrations of labile carbon fractions in soil compared to conventional tillage and low organic matter addition, respectively. POXC and POMC were the most sensitive fractions to both tillage and fertilization across the 10 European LTEs. In addition, POXC was the labile carbon fraction most positively correlated with soil chemical (total organic carbon, total nitrogen, and cation exchange capacity), physical (water stable aggregates, water holding capacity, bulk density) and biological soil quality indicators (microbial biomass carbon and nitrogen, and soil respiration).  We conclude that POXC represents a labile carbon fraction sensitive to soil management and that is the most informative about total soil organic matter, nutrients, soil structure, and microbial pools and activity, parameters commonly used as indicators of various soil functions, such as C sequestration, nutrient cycling, soil structure formation and soil as a habitat for biodiversity. Moreover, POXC measurement is relatively cheap, fast and easy. Therefore, we suggest measuring POXC as the labile carbon fraction in soil quality assessment schemes in addition to other valuable soil quality indicators.", "keywords": ["2. Zero hunger", "Dissolved organic carbon (DOC)", "Hydrophilic dissolved organic carbon (Hy-DOC)", "Permanganate oxidizable carbon (POXC)", "13. Climate action", "Long-term experimental field (LTEs)", "Hot water extractable carbon (HWEC)", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Particulate organic matter carbon (POMC)"]}, "links": [{"href": "https://doi.org/2904514118"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Indicators", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2904514118", "name": "item", "description": "2904514118", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2904514118"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-04-01T00:00:00Z"}}, {"id": "10.5281/zenodo.5987644", "type": "Feature", "geometry": null, "properties": {"license": "Embargo", "updated": "2026-07-27T16:24:31Z", "type": "Dataset", "title": "Supporting data for review article: The Global Distribution, Formation, and Fate of Mineral-Associated Soil Organic Matter Under a Changing Climate \u2013 A Trait-Based Perspective", "description": "Supporting data and code for review article: Sokol N.W., Whalen E.D., Kallenbach C., Pett-Ridge J., Georgiou K. The Global Distribution, Formation, and Fate of Mineral-Associated Soil Organic Matter Under a Changing Climate \ufffd\ufffd\ufffd A Trait-Based Perspective. <em>Functional Ecology, </em>2022. We leveraged data from a global synthesis of soil fractionation measurements (DOI: 10.5281/zenodo.5987415). For this review article, we specifically focused on measurements of bulk and mineral-associated soil organic carbon concentrations (reported in units of gC/kg soil) and the proportion of bulk soil organic carbon that is mineral-associated (reported as a %). This subset also includes auxiliary data regarding climate and biome characteristics extracted from the synthesized papers; for more variables, see the original full dataset. K\ufffd\ufffdppen-Geiger climate zones were extracted from a georeferenced global database (using R package 'kgc' v1.0.0.2) with site coordinates, where available. Three files are provided in this repository: (1) data file, (2) metadata file, and (3) code for manuscript figures and summary statistics.", "keywords": ["2. Zero hunger", "mineral-associated organic matter", "climate change", "13. Climate action", "biogeochemistry", "15. Life on land", "soil fractions", "particulate organic matter"], "contacts": [{"organization": "Georgiou, Katerina", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.5987644"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.5987644", "name": "item", "description": "10.5281/zenodo.5987644", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.5987644"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.5281/zenodo.8090465", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:24:49Z", "type": "Dataset", "title": "Data for the manuscript 'Cover crop root morphology rather than quality controls the fate of root and rhizodeposition C into distinct soil C pools'", "description": "<strong>Data for manuscript</strong> The data provided in the present document corresponds to the manuscript: Engedal, T., Magid, J., Hansen, V., Rasmussen, J., S\u00f8rensen, H., Jensen, L. S. (2023): Cover crop root morphology rather than quality controls the fate of root and rhizodeposition C into distinct soil C pools. <em>Global Change Biology, in press</em>. <strong>Short abstract</strong> In order to investigate the fate of cover crop-derived belowground C as rhizodeposition and, over time, into the distinct soil organic carbon pools of particulate- and mineral-associated organic carbon (POC and MAOC), a column trial was esblished with 0.25 m top soil and 0.25 m sub soil. Four cover crops were grown for 3 months and 14CO2-labelled twice a week. Four out of eight replicate columns were destructively harvested to quantify root C and the carbon lost via rhizodeposition in absolute (qClvR) and relative terms (%ClvR) in bulk soil and rhizosphere soil from top- and subsoil (t1). The other four replicate columns were harvested for undisturbed incubation for one year, before final sampling (t2). Bulk soil from both sampling times were subject to a simple fractionation protocol by size, where particles larger from 50 microns were assigned to POC and smaller than 50 microns assigned to MAOC after dispersion in NaHMP. All fractions were dried, weighed and analyzed for 14C activity as disintegrations per minute (DPM). <strong>Further details</strong> Column ID 1-16 refer to columns sampled at t1, while column ID 17-32 refer to columns sampled at t2. Underlying assumptions and detailed descriptions of the different fractions are to be found in the manuscript.", "keywords": ["2. Zero hunger", "MOAM", "POM", "MAOC", "cover crop", "15. Life on land", "soil organic fractionation", "soil organic carbon", "mineral-associated organic matter", "rhizodeposition", "root morphology", "particulate organic matter", "root carbon", "POC"], "contacts": [{"organization": "Engedal, Tine, Magid, Jakob, Hansen, Veronika, Rasmussen, Jim, S\u00f8rensen, Helle, Jensen, Lars Stoumann,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.8090465"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.8090465", "name": "item", "description": "10.5281/zenodo.8090465", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.8090465"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-06-28T00:00:00Z"}}, {"id": "10.5683/SP3/PAXLVH", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:24:59Z", "type": "Dataset", "title": "Plant and soil variables in plots outside and beneath Salix richardsonii patches along active and abandoned channels in a High Arctic tundra", "description": "We explored how erect shrub abundance leads to SOC variation within 20 cm soil cores in a High Arctic tundra (Bylot Island, Nunavut, Canada), where the only erect shrub, Salix richardsonii, has settled along currently active and abandoned channel zones of alluvial fans.", "keywords": ["High Arctic tundra", "Salix arctica", "soil 15N", "15. Life on land", "Salix richardsonii", "soil organic carbon stocks", "soil 14C", "soil 13C", "Salix reticulata", "Particulate organic matter", "Earth and Environmental Sciences", "Shrubification", "Plant-enhanced mineralization;", "Plant functional traits", "Alluvian fan"], "contacts": [{"organization": "Maire, Vincent, Lamarque, Laurent, L\u00e9vesque, Esther,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5683/SP3/PAXLVH"}, {"rel": "self", "type": "application/geo+json", "title": "10.5683/SP3/PAXLVH", "name": "item", "description": "10.5683/SP3/PAXLVH", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5683/SP3/PAXLVH"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-01-01T00:00:00Z"}}, {"id": "11369/445129", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-07-27T16:26:13Z", "type": "Journal Article", "created": "2023-05-09", "title": "The effects of biochar on soil organic matter pools are not influenced by climate change", "description": "The sustainability of Mediterranean croplands is threatened by climate warming and rainfall reduction. The use of biochar as an amendment represents a tool to store organic carbon (C) in soil. The vulnerability of soil organic C (SOC) to the joint effects of climate change and biochar application needs to be better understood by investigating its main pools. Here, we evaluated the effects of partial rain exclusion (\u223c30%) and temperature increase (\u223c2\u00a0\u00b0C), combined with biochar amendment, on the distribution of soil organic matter (SOM) into particulate organic matter (POM) and the mineral-associated organic matter (MAOM). A set of indices suggested an increase in thermal stability in response to biochar addition in both POM and MAOM fractions. The MAOM fraction, compared to the POM, was particularly enriched in labile substances. Data from micro-Raman spectroscopy suggested that the POM fraction contained biochar particles with a more ordered structure, whereas the structural order decreased in the MAOM fraction, especially after climate manipulation. Crystalline Fe oxides (hematite) and a mix of ferrihydrite and hematite were detected in the POM and in the MAOM fraction, respectively, of the unamended plots under climate manipulation, but not under ambient conditions. Conversely, in the amended soil, climate manipulation did not induce changes in Fe speciation. Our work underlines the importance of discretely taking into account responses of both MAOM and POM to better understand the mechanistic drivers of SOC storage and dynamics.", "keywords": ["Particulate organic matter", " Mineral-associated organic matter", " Open top chambers", " Fe EXAFS", " Raman spectroscopy", " Thermal analysis", "Take urgent action to combat climate change and its impacts", "550", "Climate Change", "Fe EXAFS", "15. Life on land", "6. Clean water", "Carbon", "Soil", "Open top chamber", "13. Climate action", "Particulate organic matter", "Charcoal", "Raman spectroscopy", "Mineral-associated organic matter", "Particulate Matter", "Thermal analysis", "http://metadata.un.org/sdg/13", "Open top chambers"]}, "links": [{"href": "https://iris.univr.it/bitstream/11562/1093186/2/JEMA%2c%202023%20-%20The%20effects%20of%20biochar%20on%20SOM%20pools%20are%20not.pdf"}, {"href": "https://doi.org/11369/445129"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Environmental%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11369/445129", "name": "item", "description": "11369/445129", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11369/445129"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-09-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Particulate+organic+matter&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=Particulate+organic+matter&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Particulate+organic+matter&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Particulate+organic+matter&offset=28", "hreflang": "en-US"}], "numberMatched": 28, "numberReturned": 28, "distributedFeatures": [], "timeStamp": "2026-07-27T19:08:28.724175Z"}