{"type": "FeatureCollection", "features": [{"id": "10.1016/j.geoderma.2012.01.038", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:40Z", "type": "Journal Article", "created": "2012-03-11", "title": "Land Degradation Impact On Soil Carbon Losses Through Water Erosion And Co2 Emissions", "description": "Abstract   Worldwide concerns with global change and its effects on our future environment require an improved understanding of the impact of land cover changes on the global C cycle. Overgrazing causes a reduction in plant cover with accepted consequences on soil infiltration and soil erosion, yet the impact on the loss of soil organic carbon (SOC) and its associated processes remain unaccounted for. In this study performed in South Africa, our main objective was to evaluate the impact of plant cover reduction on (i) SOC erosion by water in both particulate (POC) and dissolved (DOC) forms, and (ii) soil CO 2  emissions to the atmosphere. The study performed under sandy-loam Acrisols investigated three proportions of soil surface coverage by plants (Cov), from 100% (Cov100) for the \u201cnon-degraded\u201d treatment to 25\u201350% (Cov50) and 0\u20135% (Cov5). POC and DOC losses were evaluated using an artificial rainfall of 30\u00a0mm\u00a0h \u2212\u00a01  applied for a period of 30\u00a0min on bounded 1\u00a0\u00d7\u00a01\u00a0m\u00b2 microplots (n\u00a0=\u00a03 per treatment). CO 2  emissions from undisturbed soil samples (n\u00a0=\u00a09) were evaluated continuously at the laboratory over a 6-month period. At the \u201cnon-degraded\u201d treatment of Cov100, plant-C inputs to the soil profile were 1950\u00a0\u00b1\u00a0180\u00a0gC\u00a0m \u2212\u00a02 \u00a0y \u2212\u00a01  and SOC stocks in the 0\u20130.02\u00a0m layer were 300.6\u00a0\u00b1\u00a016.2\u00a0gC\u00a0m \u2212\u00a02 . While soil-C inputs by plants significantly (P\u00a0 \u2212\u00a02  at Cov100 increased from 66% at Cov50 (i.e. 3.76\u00a0\u00b1\u00a01.8\u00a0gC\u00a0m \u2212\u00a02 ) to a staggering 213% at Cov5 (i.e. 7.08\u00a0\u00b1\u00a02.9\u00a0gC\u00a0m \u2212\u00a02 ). These losses were for the most part in particulate form (from 88.0% for Cov100 to 98.7% for Cov5). Plant cover reduction significantly decreased both the cumulative C\u2013CO 2  emissions (by 68% at Cov50 and 69% at Cov5) and the mineralization rate of the soil organic matter (from 0.039 gC\u2013CO 2 \u00a0gC \u2212\u00a01  at Cov100 to 0.031\u00a0gC\u2013CO 2 \u00a0gC \u2212\u00a01  at Cov5). These results are expected to increase our understanding of the impact of land degradation on the global C cycle. Further in-situ research studies, however, need to investigate whether or not grassland degradation induces net C-emissions to the atmosphere.", "keywords": ["2. Zero hunger", "550", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "12. Responsible consumption", "South Africa", "13. Climate action", "Particulate and dissolved SOC forms", "0401 agriculture", " forestry", " and fisheries", "Global C Cycle", "Water erosion", "Land use change"], "contacts": [{"organization": "McHunu, C., /Chaplot, Vincent,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2012.01.038"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2012.01.038", "name": "item", "description": "10.1016/j.geoderma.2012.01.038", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2012.01.038"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-05-01T00:00:00Z"}}, {"id": "10.1111/j.1461-0248.2011.01692.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:38Z", "type": "Journal Article", "created": "2011-10-10", "title": "Forest Productivity Under Elevated Co2 And O3: Positive Feedbacks To Soil N Cycling Sustain Decade-Long Net Primary Productivity Enhancement By Co2", "description": "The accumulation of anthropogenic CO2 in the Earth's atmosphere, and hence the rate of climate warming, is sensitive to stimulation of plant growth by higher concentrations of atmospheric CO2. Here, we synthesise data from a field experiment in which three developing northern forest communities have been exposed to factorial combinations of elevated CO2 and O3. Enhanced net primary productivity (NPP) (c. 26% increase) under elevated CO2 was sustained by greater root exploration of soil for growth-limiting N, as well as more rapid rates of litter decomposition and microbial N release during decay. Despite initial declines in forest productivity under elevated O3, compensatory growth of O3-tolerant individuals resulted in equivalent NPP under ambient and elevated O3. After a decade, NPP has remained enhanced under elevated CO2 and has recovered under elevated O3 by mechanisms that remain un-calibrated or not considered in coupled climate-biogeochemical models simulating interactions between the global C cycle and climate warming.", "keywords": ["Forest Productivity", "0106 biological sciences", "N\u2010Cycle Feedbacks", "Elevated CO 2", "Science", "Ecology and Evolutionary Biology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "12. Responsible consumption", "13. Climate action", "Elevated O 3", "0401 agriculture", " forestry", " and fisheries", "Global C Cycle"]}, "links": [{"href": "https://doi.org/10.1111/j.1461-0248.2011.01692.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1461-0248.2011.01692.x", "name": "item", "description": "10.1111/j.1461-0248.2011.01692.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1461-0248.2011.01692.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-10-10T00:00:00Z"}}, {"id": "10.2136/sssaj2003.1620", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:21:10Z", "type": "Journal Article", "created": "2010-07-27", "title": "Interpretation Of Soil Carbon And Nitrogen Dynamics In Agricultural And Afforested Soils", "description": "<p>Interpretation of soil organic C (SOC) dynamics depends heavily on analytical methods and management systems studied. Comparison of data from long\uffe2\uff80\uff90term corn (Zea mays)\uffe2\uff80\uff90plot soils in Eastern North America showed mean residence times (MRTs) of SOC determined by14C dating were 176 times those measured with13C abundance following a 30\uffe2\uff80\uff90yr replacement of C3by C4plants on the same soils. However, MRTs of the two methods were related (r2= 0.71). Field13C MRTs of SOC were also related (R2= 0.55 to 0.85) to those measured by13CO2evolution and curve fitting during laboratory incubation. The strong relations, but different MRTs, were interpreted to mean that the three methods sampled different parts of a SOC continuum. The SOC of all parts of this continuum must be affected by the same controls on SOC dynamics for this to occur. Methods for site selection, plant biomass, soil sampling and analysis were tested on agricultural, afforested\uffe2\uff80\uff90agriculture, and native forest sites to determine the controls on SOC dynamics. Soil\uffe2\uff80\uff90C changes after afforestation were \uffe2\uff88\uff920.07 to 0.55 Mg C ha\uffe2\uff88\uff921yr\uffe2\uff88\uff921on deciduous sites and \uffe2\uff88\uff920.85 to 0.58 Mg C ha\uffe2\uff88\uff921yr\uffe2\uff88\uff921under conifers. Soil N changes under afforestation ranged from \uffe2\uff88\uff920.1 to 0.025 Mg N ha\uffe2\uff88\uff921yr\uffe2\uff88\uff921Ecosystem N accumulation was \uffe2\uff88\uff920.09 to 0.08 Mg N ha\uffe2\uff88\uff921yr\uffe2\uff88\uff921Soil C and N sequestration but not plant biomass were related to soil Ca, Mg, and K contents. Comparative, independent assays of long\uffe2\uff80\uff90term plots provides information for concept testing and the confidence necessary for decision\uffe2\uff80\uff90makers determining C\uffe2\uff80\uff90cycle policies.</p>", "keywords": ["ecosystem", "2. Zero hunger", "soil fertility", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "SOM", "global C cycle", "630"]}, "links": [{"href": "https://doi.org/10.2136/sssaj2003.1620"}, {"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/sssaj2003.1620", "name": "item", "description": "10.2136/sssaj2003.1620", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj2003.1620"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-09-01T00:00:00Z"}}, {"id": "10.2136/sssaj2003.1620,", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:21:10Z", "type": "Journal Article", "created": "2010-07-27", "description": "<p>Interpretation of soil organic C (SOC) dynamics depends heavily on analytical methods and management systems studied. Comparison of data from long\uffe2\uff80\uff90term corn (Zea mays)\uffe2\uff80\uff90plot soils in Eastern North America showed mean residence times (MRTs) of SOC determined by14C dating were 176 times those measured with13C abundance following a 30\uffe2\uff80\uff90yr replacement of C3by C4plants on the same soils. However, MRTs of the two methods were related (r2= 0.71). Field13C MRTs of SOC were also related (R2= 0.55 to 0.85) to those measured by13CO2evolution and curve fitting during laboratory incubation. The strong relations, but different MRTs, were interpreted to mean that the three methods sampled different parts of a SOC continuum. The SOC of all parts of this continuum must be affected by the same controls on SOC dynamics for this to occur. Methods for site selection, plant biomass, soil sampling and analysis were tested on agricultural, afforested\uffe2\uff80\uff90agriculture, and native forest sites to determine the controls on SOC dynamics. Soil\uffe2\uff80\uff90C changes after afforestation were \uffe2\uff88\uff920.07 to 0.55 Mg C ha\uffe2\uff88\uff921yr\uffe2\uff88\uff921on deciduous sites and \uffe2\uff88\uff920.85 to 0.58 Mg C ha\uffe2\uff88\uff921yr\uffe2\uff88\uff921under conifers. Soil N changes under afforestation ranged from \uffe2\uff88\uff920.1 to 0.025 Mg N ha\uffe2\uff88\uff921yr\uffe2\uff88\uff921Ecosystem N accumulation was \uffe2\uff88\uff920.09 to 0.08 Mg N ha\uffe2\uff88\uff921yr\uffe2\uff88\uff921Soil C and N sequestration but not plant biomass were related to soil Ca, Mg, and K contents. Comparative, independent assays of long\uffe2\uff80\uff90term plots provides information for concept testing and the confidence necessary for decision\uffe2\uff80\uff90makers determining C\uffe2\uff80\uff90cycle policies.</p>", "keywords": ["ecosystem", "2. Zero hunger", "soil fertility", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "SOM", "global C cycle", "630"]}, "links": [{"href": "https://doi.org/10.2136/sssaj2003.1620,"}, {"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/sssaj2003.1620,", "name": "item", "description": "10.2136/sssaj2003.1620,", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj2003.1620,"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-09-01T00:00:00Z"}}, {"id": "10.2136/sssaj2012.0327", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:21:17Z", "type": "Journal Article", "created": "2013-08-26", "title": "Changes In Ecosystem Carbon Following Afforestation Of Native Sand Prairie", "description": "Determining the dynamics of carbon (C) as a function of vegetation and residue inputs is important for predicting changes in ecosystem functions and the global C cycle. Litter and soil samples were analyzed from plantations of eastern red cedar (Juniperous virginiana) and ponderosa pine (Pinus ponderosa) and native prairie at the Nebraska National Forest to evaluate the impact of different types of land management on soil C contents and turnover rates. Total soil C to a depth of 1 m was greatest in the cedar stands. Pine ecosystems stored more C in the tree biomass and litter but lost more native prairie C from the soil. The soil \u00b9\u00b3C content showed 82% of the original, and prairie C remained under cedars compared with \u223c45% under pine. Soil cation contents were greatest overall in cedar soils and lowest in pine. The C content in cedar soils was strongly related to Ca content. Differences in microbial community fatty acid profiles were related to vegetation type, and nutrients explained \u223c60% of the variation in profiles. Our research indicates that changes in soil C and nutrient content following conversion from prairie to forest are dependent on tree species planted, characteristics of the plant litter, and cation cycling in the plant\u2013soil system.", "keywords": ["13. Climate action", "0401 agriculture", " forestry", " and fisheries", "SOC", "04 agricultural and veterinary sciences", "15. Life on land", "C pools", "global C cycle"]}, "links": [{"href": "https://doi.org/10.2136/sssaj2012.0327"}, {"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/sssaj2012.0327", "name": "item", "description": "10.2136/sssaj2012.0327", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj2012.0327"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-09-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Global+C+Cycle&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=Global+C+Cycle&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=Global+C+Cycle&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Global+C+Cycle&offset=5", "hreflang": "en-US"}], "numberMatched": 5, "numberReturned": 5, "distributedFeatures": [], "timeStamp": "2026-04-16T16:52:03.273211Z"}