{"type": "FeatureCollection", "facets": {"type": {"type": "terms", "property": "type", "buckets": [{"value": "Journal Article", "count": 7}, {"value": "Dataset", "count": 6}]}, "soil_chemical_properties": {"type": "terms", "property": "soil_chemical_properties", "buckets": [{"value": "soil carbon stocks", "count": 13}, {"value": "soil organic carbon", "count": 2}, {"value": "ammonia", "count": 1}]}, "soil_biological_properties": {"type": "terms", "property": "soil_biological_properties", "buckets": []}, "soil_physical_properties": {"type": "terms", "property": "soil_physical_properties", "buckets": [{"value": "bulk density", "count": 2}]}, "soil_classification": {"type": "terms", "property": "soil_classification", "buckets": [{"value": "forest soils", "count": 2}, {"value": "sandy soils", "count": 1}]}, "soil_functions": {"type": "terms", "property": "soil_functions", "buckets": [{"value": "land cover change", "count": 1}]}, "soil_threats": {"type": "terms", "property": "soil_threats", "buckets": []}, "soil_processes": {"type": "terms", "property": "soil_processes", "buckets": [{"value": "greenhouse gas emissions", "count": 1}]}, "soil_management": {"type": "terms", "property": "soil_management", "buckets": [{"value": "plant residues", "count": 1}]}, "ecosystem_services": {"type": "terms", "property": "ecosystem_services", "buckets": []}}, "features": [{"id": "10.1016/j.agee.2015.10.017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:15:49Z", "type": "Journal Article", "created": "2015-11-10", "title": "Land Use Changes Affecting Soil Organic Carbon Storage Along A Mangrove Swamp Rice Chronosequence In The Cacheu And Oio Regions (Northern Guinea-Bissau)", "description": "Abstract   Guinea-Bissau has the largest area of mangrove swamp rice, an important cropping system that significantly contribute to the food security of the nation. Attempts to reclaim mangrove swamps for rice growing have shown the importance of a greater knowledge on the effects of land use change on soil properties and soil carbon storage. To address this problem, a study was undertaken within Cacheur and Oio regions in Northern Guinea-Bissau, along the following chronosequence: mangrove, rice and abandoned fields. Changes in C/N ratio, \u03b4 13 C and \u03b4 15 N values were used to study the dynamics of C 3  plant-derived and marine-derived carbon (C) in order to analyze the origin of soil organic matter (SOM) and estimate the impact of marine contribution to SOC. Isotopic signatures within the mangrove swamp rice soils suggested the inwelling of marine derived C. SOC stock was estimated in 0\u201310, 0\u201320, 0\u201340 and 0\u201380\u00a0cm soil layers using fixed soil depth (FD) and fixed soil mass (FM) approaches. The significantly highest values were found in mangrove soils and the lowest in the abandoned fields for both sites, while no significant differences were recorded for the topsoil (0\u201310\u00a0cm) between mangrove and rice fields. The results of this study revealed that conversion of mangrove to rice cropping has technical potential of SOC sequestration in the upper part of the soil (0\u201340\u00a0cm). On the other hand, the abandonment of the fields caused decreases in carbon storage along the whole soil depth. These findings may have important implications for national forest carbon monitoring systems and regional level reducing emission from deforestation and forest degradation (REDD+) strategies.", "keywords": ["Land-use change; Mangrove; Paddy soils; Soil carbon stock; Stable isotopes", "2. Zero hunger", "Soil carbon stock", "13. Climate action", "Land-use change", "Paddy soils", "15. Life on land", "Mangrove", "01 natural sciences", "6. Clean water", "Stable isotopes", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2015.10.017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2015.10.017", "name": "item", "description": "10.1016/j.agee.2015.10.017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2015.10.017"}, {"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": "10.1051/forest:2005078", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:18:58Z", "type": "Journal Article", "created": "2005-12-14", "title": "Carbon Stock Changes In A Peaty Gley Soil Profile After Afforestation With Sitka Spruce (Picea Sitchensis)", "description": "Open AccessChangement des stocks de carbone dans le profil des sols tourbeux \u00e0 gley apr\u00e8s boisement avec l'\u00e9pic\u00e9a de Sitka (Picea sitchensis (Bong.) Carr). Les variations de stocks de carbone (Corg) dans la liti\u00e8re (OL), dans l'horizon organique (OH) et l'horizon min\u00e9ral (A) ont \u00e9t\u00e9 \u00e9tudi\u00e9es apr\u00e8s boisement et \u00e0 diff\u00e9rents stades apr\u00e8s coupe rase de la premi\u00e8re rotation, dans une chronos\u00e9quence foresti\u00e8re de l'Epic\u00e9a de Sitka (Picea sitchensis) sur des sols tourbeux \u00e0 gley en For\u00eat d'Hardwood (N.E. Angleterre). Les sites choisis \u00e9taient les suivants\u00a0: prairie naturelle, premi\u00e8re rotation \u00e2g\u00e9e de 40 ans, coupe rase depuis 18 mois, et 12, 20 et 30 ans de deuxi\u00e8me rotation. Une comparaison suppl\u00e9mentaire a \u00e9t\u00e9 faite dans trois peuplements \u00e2g\u00e9s de 40 ans entre des bandes de terre non plant\u00e9es et dans une for\u00eat adjacente. Les mesures de Corg ont \u00e9t\u00e9 men\u00e9es en utilisant deux m\u00e9thodes\u00a0: pertes de poids par ignition (L.O.I.) et combustion s\u00e8che par analyse du C/N. Les r\u00e9sultats des deux m\u00e9thodes \u00e9taient lin\u00e9airement li\u00e9s. Le boisement change \u00e0 la fois l'importance et la distribution des stocks de Corg des prairies naturelles. Les stocks totaux de Corg d\u00e9croissent pendant la premi\u00e8re rotation et s'accroissent pendant la seconde rotation vers des valeurs similaires \u00e0 celles trouv\u00e9es dans les prairies non plant\u00e9es. La distribution verticale de Corg change aussi avec proportionnellement plus de carbone stock\u00e9 dans la liti\u00e8re (OL) et dans l'horizon A et moins dans l'horizon organique apr\u00e8s le boisement et deux rotations.", "keywords": ["2. Zero hunger", "bulk density", "am\u00e9nagement forestier", "Sitka spruce", "forest management", "densit\u00e9 volumique", "04 agricultural and veterinary sciences", "15. Life on land", "concentration en C", "01 natural sciences", "sol tourbeux \u00e0 gley", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "soil carbon stocks", "C concentration", "peaty gley soil<br>---<br>stocks de carbone dans le sol", "[SDV.SA.SF] Life Sciences [q-bio]/Agricultural sciences/Silviculture", " forestry", "\u00e9pic\u00e9a de Sitka", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1051/forest:2005078"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annals%20of%20Forest%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/forest:2005078", "name": "item", "description": "10.1051/forest:2005078", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/forest:2005078"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-12-01T00:00:00Z"}}, {"id": "10.1016/j.still.2010.07.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:17:58Z", "type": "Journal Article", "created": "2010-08-15", "title": "Impact Of Pasture, Agriculture And Crop-Livestock Systems On Soil C Stocks In Brazil", "description": "Abstract   Changes in land use can result in either sources or sinks of atmospheric carbon (C), depending on management practices. In Brazil, significant changes in land use result from the conversion of native vegetation to pasture and agriculture, conversion of pasture to agriculture and, more recently, the conversion of pasture and agriculture to integrated crop-livestock systems (ICL). The ICL system proposes a diversity of activities that include the strategic incorporation of pastures to agriculture so as to benefit both. In agricultural areas, for example, the implementation of ICL requires the production of quality forage for animals between crops as well as the production of straw to facilitate the sustainability of the no-tillage (NT) management system. The objective of this study was to evaluate the modifications in soil C stocks resulting from the main processes involved in the changes of land use in Amazonia and Cerrado biomes. For comparison purposes, areas under native vegetation, pastures, crop succession and ICL under different edapho-climatic conditions in Amazonia and Cerrado biomes were evaluated. This study demonstrated that the conversion of native vegetation to pasture can cause the soil to function either as a source or a sink of atmospheric CO2, depending on the land management applied. Non-degraded pasture under fertile soil showed a mean accumulation rate of 0.46\u00a0g\u00a0ha\u22121\u00a0year\u22121. Carbon losses from pastures implemented in naturally low fertile soil ranged from 0.15 to 1.53\u00a0Mg\u00a0ha\u22121\u00a0year\u22121, respectively, for non-degraded and degraded pasture. The conversion of native vegetation to agriculture in areas under the ICL system, even when cultivated under NT, resulted in C losses of 1.31 in six years and of 0.69\u00a0Mg\u00a0ha\u22121 in 21 years. The conversion of a non-degraded pasture to cropland (soybean/sorghum) released, in average, 1.44 Mg of C ha\u22121year\u22121to the atmosphere.  The ICL system in agricultural areas has shown evidences that it always functions as a sink of C with accumulation rates ranging from 0.82 to 2.58\u00a0Mg\u00a0ha\u22121\u00a0year\u22121. The ICL produces soil C accumulation and, as a consequence, reduces atmospheric CO2 in areas formerly cultivated under crop succession. However, the magnitude of C accumulation in soil depends on factors such as the types of crops, the edapho-climatic conditions and the amount of time the area is under ICL.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "550", "limiting water range", "01 natural sciences", "630", "atlantic forest", "Amazonia", "Crop-livestock systems", "Land use change", "0105 earth and related environmental sciences", "2. Zero hunger", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "region", "Crop-livestock", "native cerrado", "organic-carbon sequestration", "grassland management", "nitrogen stocks", "Cerrado", "04 agricultural and veterinary sciences", "15. Life on land", "greenhouse-gas emissions", "matter", "6. Clean water", "brachiaria pastures", "Soil carbon stock", "13. Climate action", "tillage", "systems", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2010.07.011"}, {"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.2010.07.011", "name": "item", "description": "10.1016/j.still.2010.07.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2010.07.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-09-01T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2012.02657.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:20:10Z", "type": "Journal Article", "created": "2012-07-10", "title": "Variation In Soil Carbon Stocks And Their Determinants Across A Precipitation Gradient In West Africa", "description": "Abstract<p>We examine the influence of climate, soil properties and vegetation characteristics on soil organic carbon (SOC) along a transect of West African ecosystems sampled across a precipitation gradient on contrasting soil types stretching from Ghana (15\uffc2\uffb0N) to Mali (7\uffc2\uffb0N). Our findings derive from a total of 1108 soil cores sampled over 14 permanent plots. The observed pattern in SOC stocks reflects the very different climatic conditions and contrasting soil properties existing along the latitudinal transect. The combined effects of these factors strongly influence vegetation structure. SOC stocks in the first 2\uffc2\uffa0m of soil ranged from 20\uffc2\uffa0Mg\uffc2\uffa0C\uffc2\uffa0ha\uffe2\uff88\uff921 for a Sahelian savanna in Mali to over 120\uffc2\uffa0Mg\uffc2\uffa0C\uffc2\uffa0ha\uffe2\uff88\uff921 for a transitional forest in Ghana. The degree of interdependence between soil bulk density (SBD) and soil properties is highlighted by the strong negative relationships observed between SBD and SOC (r2\uffc2\uffa0&gt;\uffc2\uffa00.84). A simple predictive function capable of encompassing the effect of climate, soil properties and vegetation type on SOC stocks showed that available water and sand content taken together could explain 0.84 and 0.86 of the total variability in SOC stocks observed to 0.3 and 1.0\uffc2\uffa0m depth respectively. Used in combination with a suitable climatic parameter, sand content is a good predictor of SOC stored in highly weathered dry tropical ecosystems with arguably less confounding effects than provided by clay content. There was an increased contribution of resistant SOC to the total SOC pool for lower rainfall soils, this likely being the result of more frequent fire events in the grassier savannas of the more arid regions. This work provides new insights into the mechanisms determining the distribution of carbon storage in tropical soils and should contribute significantly to the development of robust predictive models of biogeochemical cycling and vegetation dynamics in tropical regions.</p>", "keywords": ["550", "Tropical ecosystems", "biotic controls", "West africa", "01 natural sciences", "forest soils", "land-use change", "Precipitation gradient", "Soil bulk density", "senegal", "cycle feedback", "Life Science", "Resistant organic carbon", "organic-matter", "0105 earth and related environmental sciences", "2. Zero hunger", "info:eu-repo/classification/ddc/550", "savanna soils", "ddc:550", "Soil organic carbon", "sequestration", "04 agricultural and veterinary sciences", "15. Life on land", "stabilization", "Earth sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "texture", "Soil carbon stocks"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2012.02657.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-2486.2012.02657.x", "name": "item", "description": "10.1111/j.1365-2486.2012.02657.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2012.02657.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-03-02T00:00:00Z"}}, {"id": "10.1093/jpe/rtac075", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:31Z", "type": "Journal Article", "created": "2022-07-26", "title": "Effects of land use on soil microbial community structure and diversity in the Yellow River floodplain", "description": "Abstract                <p>Soil microorganisms and their diversity are important bioindicators of soil carbon and nutrient cycling. Land use type is a major determining factor that influences soil microbial community composition in floodplain ecosystems. However, how the structure and diversity of soil microbial communities respond to specific changes in land use, as well as the main drivers of these changes, are still unclear. This study was conducted in the Yellow River floodplain to examine the effects of land use type on soil microbial communities. Four land use types (shrubland, farmland, grassland and forest) were selected, wherein shrubland served as the baseline. We measured soil microbial structure and diversity using phospholipid fatty acids (PLFAs). Land use type significantly affected total, bacterial and fungal PLFAs, and the gram-positive/negative bacterial PLFAs. Compared with shrubland, peanut farmland had higher total and bacterial PLFAs and forest had higher fungal PLFAs. Soil pH and phosphorus were the predominate drivers of microbial PLFAs, explaining 37% and 26% of the variability, respectively. Soil total nitrogen and nitrate nitrogen were the main factors increasing microbial community diversity. Peanut farmland had the highest soil carbon content, soil carbon stock, total PLFAs and microbial diversity, suggesting that farmland has great potential as a carbon sink. Our findings indicated that peanut farmland in the Yellow River floodplain is critical for maintaining soil microbial communities and soil carbon sequestration.</p", "keywords": ["2. Zero hunger", "03 medical and health sciences", "0302 clinical medicine", "microbial community diversity", "Yellow River floodplain", "13. Climate action", "fungi", "15. Life on land", "bacteria", "6. Clean water", "soil carbon stock", "land use type"]}, "links": [{"href": "https://doi.org/10.1093/jpe/rtac075"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Plant%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/jpe/rtac075", "name": "item", "description": "10.1093/jpe/rtac075", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/jpe/rtac075"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-26T00:00:00Z"}}, {"id": "10.1111/1365-2664.13113", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:19:47Z", "type": "Journal Article", "created": "2018-01-30", "title": "Crop traits drive soil carbon sequestration under organic farming", "description": "Abstract<p>    <p>Organic farming (OF) enhances top soil organic carbon (SOC) stocks in croplands compared with conventional farming (CF), which can contribute to sequester C. As farming system differences in the amount of C inputs to soil (e.g. fertilization and crop residues) are not enough to explain such increase, shifts in crop residue traits important for soil C losses such as litter decomposition may also play a role.</p>    <p>To assess whether crop residue (leaf and root) traits determined SOC sequestration responses to OF, we coupled a global meta\uffe2\uff80\uff90analysis with field measurements across a European\uffe2\uff80\uff90wide network of sites. In the meta\uffe2\uff80\uff90analysis, we related crop species averages of leaf N, leaf\uffe2\uff80\uff90dry matter content, fine\uffe2\uff80\uff90root C and N, with SOC stocks and sequestration responses in OF vs. CF. Across six European sites, we measured the management\uffe2\uff80\uff90induced changes in SOC stocks and leaf litter traits after long\uffe2\uff80\uff90term ecological intensive (e.g. OF) vs. CF comparisons.</p>    <p>Our global meta\uffe2\uff80\uff90analysis showed that the positive OF\uffe2\uff80\uff90effects on soil respiration, SOC stocks, and SOC sequestration rates were significant even in organic farms with low manure application rates. Although fertilization intensity was the main driver of OF\uffe2\uff80\uff90effects on SOC, leaf and root N concentrations also played a significant role. Across the six European sites, changes towards higher leaf litter N in CF also promoted lower SOC stocks.</p>    <p>Our results highlight that crop species displaying traits indicative of resource\uffe2\uff80\uff90acquisitive strategies (e.g. high leaf and root N) increase the difference in SOC between OF and CF. Indeed, changes towards higher crop residue decomposability was related with decreased SOC stocks under CF across European sites.</p>   <p>Synthesis and applications. Our study emphasizes that, with management, changes in crop residue traits contribute to the positive effects of organic farming (OF) on soil carbon sequestration. These results provide a clear message to land managers: the choice of crop species, and more importantly their functional traits (e.g. leave and root nitrogen), should be considered in addition to management practices and climate, when evaluating the potential of OF for climate change mitigation.</p>  </p>", "keywords": ["SOC sequestration", "0301 basic medicine", "Organic farming", "Resource economics traits", "Soil Science", "Ecological intensification", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "Markvetenskap", "630", "Soil quality", "climate change mitigation", "Climate change mitigation", "03 medical and health sciences", "ecological intensification", "organic farming", "[SDE.ES] Environmental Sciences/Environment and Society", "Crop residue", "soil carbon stocks", "'Organics' in general", "[SDE.ES]Environmental Sciences/Environment and Society", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "580", "2. Zero hunger", "leaf nitrogen", "04 agricultural and veterinary sciences", "15. Life on land", "resource economics traits", "meta-analysis", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "Meta-analysis", "crop residue", "13. Climate action", "crop traits", "0401 agriculture", " forestry", " and fisheries", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "Leaf nitrogen", "Soil carbon stocks"]}, "links": [{"href": "https://doi.org/10.1111/1365-2664.13113"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Applied%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/1365-2664.13113", "name": "item", "description": "10.1111/1365-2664.13113", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/1365-2664.13113"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-02-15T00:00:00Z"}}, {"id": "10.1590/s0100-06832009000600009", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:21:09Z", "type": "Journal Article", "created": "2010-02-11", "title": "Carbon Content In Amazonian Oxisols After Forest Conversion To Pasture", "description": "<p>Soil plays an important role in the C cycle, and substitution of tropical forest by cultivated land affects C dynamic and stock. This study was developed in an area of expansion of human settlement in the Eastern Amazon, in Itupiranga, State of Par\uffc3\uffa1, to evaluate the effects of native forest conversion to Brachiaria brizantha pasture on C contents of a dystrophic Oxisol. Soil samples were collected in areas of native forest (NF), of 8 to 10 year old secondary forest (SF), 1 to 2 year old SF (P1-2), 5 to 7 year old SF (P5-7), and of 10 to 12 year old SF (P10-12), and from under pastures, in the layers 0-2, 2-5 and 5-10 cm, to evaluate C levels and stocks and carry out separation of OM based on particle size. After deforestation, soil density increased to a depth of 5 cm, with greater increase in older pastures. Variation in C levels was greatest in the top soil layer; C contents increased with increasing pasture age. In the layers 2-5 and 5-10 cm, C content proved to be stable for the types of plant cover evaluated. Highest C concentrations were found in the silt fraction; however, C contents were highest in the clay fraction, independent of the plant cover. An increase in C associated with the sand fraction in the form of little decomposed organic residues was observed in pastures, confirming greater sensitivity of this fraction to change in soil use.</p>", "keywords": ["estoque de carbono no solo", "550", "floresta amaz\u00f4nica", "particle-size fractions", "tropical soil", "0401 agriculture", " forestry", " and fisheries", "Amazon rain forest", "fracionamento granulom\u00e9trico", "solo tropical", "04 agricultural and veterinary sciences", "15. Life on land", "630", "soil carbon stock"], "contacts": [{"organization": "Silva da, M. L., /Desjardins, Thierry, /Sarrazin, Max, Melo de, V. S., Martins, P. F. D., Santos, E. R., Carvalho de, C. J. R.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832009000600009"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832009000600009", "name": "item", "description": "10.1590/s0100-06832009000600009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832009000600009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-12-01T00:00:00Z"}}, {"id": "10.5061/dryad.4qrfj6qg2", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:23:08Z", "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.rn8pk0ph5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:23:18Z", "type": "Dataset", "title": "Drivers of soil organic carbon stock during tropical forest succession", "description": "Soil organic matter contributes to productivity in terrestrial ecosystems  and contains more carbon than is found in the atmosphere. Yet, there is  little understanding of soil organic carbon (SOC) sequestration processes  during tropical forest succession, particularly after land abandonment  from agriculture practices. Here we used vegetation and environmental data  from two large-scale surveys covering a total landscape area of 20,000 ha  in Southeast Asia to investigate the effects of plant species diversity,  functional trait diversity, phylogenetic diversity, aboveground biomass,  and environmental factors on SOC sequestration during forest succession.  We found that functional trait diversity plays an important role in  determining SOC sequestration across successional trajectories. Increases  in SOC carbon storage were associated with indirect positive effects of  species diversity and succession age via functional trait diversity, but  phylogenetic diversity and aboveground biomass showed no significant  relationship with SOC stock. Furthermore, the effects of soil properties  and functional trait diversity on SOC carbon storage shift across  elevation. Synthesis: Our results suggest that reforestation and  restoration management practices that implement a trait-based approach by  combining long-lived and short-lived species (conservative and acquisitive  traits) to increase plant functional diversity could enhance SOC  sequestration for climate change mitigation and adaptation efforts, as  well as accelerate recovery of healthy soils.", "keywords": ["2. Zero hunger", "tropical forest", "FOS: Agriculture", " forestry", " and fisheries", "15. Life on land", "forest soil", "functional diversity", "plant diversity", "swidden agriculture", "soil organic carbon", "13. Climate action", "forest succession", "functional traits", "tropical forest ecology", "soil carbon stock"]}, "links": [{"href": "https://doi.org/10.5061/dryad.rn8pk0ph5"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.rn8pk0ph5", "name": "item", "description": "10.5061/dryad.rn8pk0ph5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.rn8pk0ph5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-05-26T00:00:00Z"}}, {"id": "10.5281/zenodo.15203559", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:24:46Z", "type": "Dataset", "title": "Pyrogenic carbon contribution to tropical savanna soil carbon storage", "description": "Savannas are fire-prone ecosystems that contribute substantially to global burned area and fire emissions, but these emissions may be offset by the deposition of fire-derived, persistent pyrogenic carbon (PyC) in soils. While some estimates of PyC contributions to soil organic carbon (SOC) storage in savanna exist, factors driving its accumulation in soils remain largely unknown due to a lack of measurements with consistent methods in the literature. To address this knowledge gap, we sampled 253 sites at a regional scale across tropical savannas in Kruger National Park, South Africa, covering broad gradients in fire regimes, grass biomass, rainfall, and soil texture. We demonstrate that across these savannas, pyrogenic carbon contributes, on average, 14.08% (se = 0.36%, n = 253) of total SOC storage in surface soils but can reach as high as 40%. While fire frequency and grass biomass affect soil PyC stock, savannas with higher soil clay content and lower rainfall \u2013 conditions that favor PyC preservation \u2013 tend to accumulate more PyC in the soil. These results underscore the significant contribution of PyC to SOC storage in tropical savannas and highlight the environmental factors associated with its accumulation across regional scales, providing an empirical basis for understanding fire\u2019s role in the tropical savanna carbon cycle.", "keywords": ["savanna", "pyrogenic carbon", "soil carbon stock"], "contacts": [{"organization": "Zhou, Yong", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.15203559"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.15203559", "name": "item", "description": "10.5281/zenodo.15203559", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.15203559"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-04-12T00:00:00Z"}}, {"id": "10.5281/zenodo.15936377", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:25:03Z", "type": "Dataset", "title": "Pyrogenic carbon contribution to tropical savanna soil carbon storage", "description": "Savannas are fire-prone ecosystems that contribute substantially to global burned area and fire emissions, but these emissions may be offset by the deposition of fire-derived, persistent pyrogenic carbon (PyC) in soils. While some estimates of PyC contributions to soil organic carbon (SOC) storage in savanna exist, factors driving its accumulation in soils remain largely unknown due to a lack of measurements with consistent methods in the literature. To address this knowledge gap, we sampled 253 sites at a regional scale across tropical savannas in Kruger National Park, South Africa, covering broad gradients in fire regimes, grass biomass, rainfall, and soil texture. We demonstrate that across these savannas, pyrogenic carbon contributes, on average, 14.08% (se = 0.36%, n = 253) of total SOC storage in surface soils but can reach as high as 40%. While fire frequency and grass biomass affect soil PyC stock, savannas with higher soil clay content and lower rainfall \u2013 conditions that favor PyC preservation \u2013 tend to accumulate more PyC in the soil. These results underscore the significant contribution of PyC to SOC storage in tropical savannas and highlight the environmental factors associated with its accumulation across regional scales, providing an empirical basis for understanding fire\u2019s role in the tropical savanna carbon cycle.", "keywords": ["savanna", "pyrogenic carbon", "soil carbon stock"], "contacts": [{"organization": "Zhou, Yong", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.15936377"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.15936377", "name": "item", "description": "10.5281/zenodo.15936377", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.15936377"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-04-12T00:00:00Z"}}, {"id": "10.5281/zenodo.6397568", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:25:25Z", "type": "Dataset", "title": "Maps of soil organic carbon stocks in Brazil", "description": "Open AccessThis database was created by Gustavo Vieira Veloso and Lucas Carvalho Gomes 04/06/2022. <br> Contact: gustavo.v.veloso@gmail.com and lucascarvalhogomes15@hotmail.com Maps of soil organic carbon (SOC) stocks in Brazil of the article: 'Modeling and mapping soil organic carbon stocks in Brazil' (doi: 10.1016/j.geoderma.2019.01.007) The dataset is composed of five folders of SOC stocks maps at the standard depths (0\u20135, 5\u201315, 15\u201330, 30\u201360, and 60\u2013100 cm). The maps are in Geotif format (EPSG 102015) with a spatial resolution of approximately 1 km and include the mean SOC stocks, standard deviation (SD), coefficient of variation (CV), 0.05 and 0.95 quantiles. The maps are free to use and please cite also the article:<br> Gomes, L.C., Faria, R.M., de Souza, E., Veloso, G.V., Schaefer, C.E.G., &amp; Fernandes Filho, E.I. (2019). Modeling and mapping soil organic carbon stocks in Brazil. Geoderma, 340, 337-350.", "keywords": ["2. Zero hunger", "Random Forests", "Spatial prediction", "Soil carbon stock", "Machine learning", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.6397568"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.6397568", "name": "item", "description": "10.5281/zenodo.6397568", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.6397568"}, {"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": "10.5683/SP3/D8KCYZ", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-03T16:25:52Z", "type": "Dataset", "created": "2022-01-05", "title": "Soil organic carbon stock and uncertainties, 30cm and 1m depth, at 250m spatial resolution in Canada, version 3.0", "description": "Open AccessThis project aimed to produce the first wall-to-wall estimate of C stocks in plants and soils of Canada at 250 m spatial resolution. This dataset contains the map with the soil organic carbon (SOC) in kg/m\u00b2 for entire Canada in 30cm and 1m depth, and the uncertainty in SOC predictions. The SOC stock map was produced using 39,323 ground samples of soil organic carbon concentration (g/kg) distributed in 6,533 sites, 11,068 ground samples of bulk density (kg/dm3) distributed in 2,157 sites, long-term climate data, remote sensing observations and a machine learning model. The soil samples containing the x and y coordinates, depth and SOC (in g/kg) information were overlaid with the stacked covariates (soil forming factors) to compose the regression matrix. Random forest models were trained using a recursive feature elimination scheme and a cross-validation assessment. The best model was used for spatial prediction of SOC over Canada in intermediate depths between 0 and 1 m (0cm, 5cm, 15cm, 30cm, 60cm, 100cm). Afterwards, the SOC stock of each depth increment was computed using SOC concentration and bulk density maps, and corrected with coarse fragment information. The depth increments have been added to compose the 0-30cm and 0-1m depth intervals multiplied by rooting depths fraction to discount shallow soils. Water and ice/snow areas were removed using a mask based on the Land Cover of Canada map. Ground ice in permafrost areas was discounted according to ice abundance using the ground ice map of Canada. The SOC stock uncertainty map is the difference between the first and third quantiles of a quantile regression forest approach of SOC concentration and bulk density prediction (90% confidence interval).", "keywords": ["Canada soil carbon stock", "13. Climate action", "FOS: Agriculture", " forestry and fisheries", "Earth and Environmental Sciences", "soil carbon storage", "Soil Sciences", "Soils", "15. Life on land", "soil carbon stock", "soil carbon density"], "contacts": [{"organization": "Gonsamo, Alemu, Sothe, Camile, Snider, James, Finkelstein, Sarah, Arabian, Joyce, Kurz, Werner,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5683/SP3/D8KCYZ"}, {"rel": "self", "type": "application/geo+json", "title": "10.5683/SP3/D8KCYZ", "name": "item", "description": "10.5683/SP3/D8KCYZ", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5683/SP3/D8KCYZ"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-01-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?facets=true&soil_chemical_properties=soil+carbon+stocks&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?facets=true&soil_chemical_properties=soil+carbon+stocks&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?facets=true&soil_chemical_properties=soil+carbon+stocks&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?facets=true&soil_chemical_properties=soil+carbon+stocks&offset=13", "hreflang": "en-US"}], "numberMatched": 13, "numberReturned": 13, "distributedFeatures": [], "timeStamp": "2026-04-04T15:23:23.576522Z"}