{"type": "FeatureCollection", "features": [{"id": "10.1007/s00442-002-0884-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-06-27T16:15:38Z", "type": "Journal Article", "created": "2003-02-13", "title": "Forest Carbon Balance Under Elevated Co2", "description": "Free-air CO2 enrichment (FACE) technology was used to expose a loblolly pine (Pinus taeda L.) forest to elevated atmospheric CO2 (ambient + 200\u00a0\u00b5l l-1). After 4\u00a0years, basal area of pine trees was 9.2% larger in elevated than in ambient CO2 plots. During the first 3\u00a0years the growth rate of pine was stimulated by ~26%. In the fourth year this stimulation declined to 23%. The average net ecosystem production (NEP) in the ambient plots was 428\u00a0gC\u00a0m-2\u00a0year-1, indicating that the forest was a net sink for atmospheric CO2. Elevated atmospheric CO2 stimulated NEP by 41%. This increase was primarily an increase in plant biomass increment (57%), and secondarily increased accumulation of carbon in the forest floor (35%) and fine root increment (8%). Net primary production (NPP) was stimulated by 27%, driven primarily by increases in the growth rate of the pines. Total heterotrophic respiration (R h) increased by 165%, but total autotrophic respiration (R a) was unaffected. Gross primary production was increased by 18%. The largest uncertainties in the carbon budget remain in separating belowground heterotrophic (soil microbes) and autotrophic (root) respiration. If applied to temperate forests globally, the increase in NEP that we measured would fix less than 10% of the anthropogenic CO2 projected to be released into the atmosphere in the year 2050. This may represent an upper limit because rising global temperatures, land disturbance, and heterotrophic decomposition of woody tissues will ultimately cause an increased flux of carbon back to the atmosphere.", "keywords": ["Carbon sequestration", "Global carbon cycle", "0106 biological sciences", "Free-air CO enrichment 2", "Carbon dioxide", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Pinus taeda", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1007/s00442-002-0884-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-002-0884-x", "name": "item", "description": "10.1007/s00442-002-0884-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-002-0884-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-04-01T00:00:00Z"}}, {"id": "10.1016/j.tree.2020.10.006", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:18:51Z", "type": "Journal Article", "created": "2020-11-06", "title": "Organic Matter Degradation across Ecosystem Boundaries: The Need for a Unified Conceptualization", "description": "The global carbon cycle connects organic matter (OM) pools in soil, freshwater, and marine ecosystems with the atmosphere, thereby regulating their size and reactivity. Due to the complexity of biogeochemical processes and historically compartmentalized disciplines, ecosystem-specific conceptualizations of OM degradation have emerged independently of developments in other ecosystems. Recent discussions regarding the relative importance of molecular composition and ecosystem properties on OM degradation have diverged in opposing directions across subdisciplines, leaving our understanding inconsistent. Ecosystem-dependent theories are problematic since properties unique to an ecosystem may change in response to anthropogenic stressors, including climate change. The next breakthrough in our understanding of OM degradation requires a shift in focus towards developing a unified theory of controls on OM across ecosystems.", "keywords": ["0301 basic medicine", "[CHIM.ANAL] Chemical Sciences/Analytical chemistry", "global carbon cycle", "[SDE.MCG]Environmental Sciences/Global Changes", "Climate Change", "Concept Formation", "soil", "Carbon Cycle", "Global carbon cycle", "Soil", "03 medical and health sciences", "Freshwater", "[CHIM.ANAL]Chemical Sciences/Analytical chemistry", "[SDV.EE]Life Sciences [q-bio]/Ecology", "Dissolved organic matter", "14. Life underwater", "degradation rates", "freshwater", "Ecosystem", "organic matter", "Degradation rates", "0303 health sciences", "Marine", "marine", "biogeochemical cycles", "organic matter persistence", "dissolved organic matter", "15. Life on land", "Milj\u00f6vetenskap", "Biogeochemical cycles", "Carbon", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "[SDE.MCG] Environmental Sciences/Global Changes", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "Organic matter persistence", "13. Climate action", "Organic matter", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "environment", "Environmental Sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.tree.2020.10.006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Trends%20in%20Ecology%20%26amp%3B%20Evolution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.tree.2020.10.006", "name": "item", "description": "10.1016/j.tree.2020.10.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.tree.2020.10.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-01T00:00:00Z"}}, {"id": "10.1111/nph.16866", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:21:07Z", "type": "Journal Article", "created": "2020-08-13", "title": "Integrating the evidence for a terrestrial carbon sink caused by increasing atmospheric CO 2", "description": "Summary<p>Atmospheric carbon dioxide concentration ([CO2]) is increasing, which increases leaf\uffe2\uff80\uff90scale photosynthesis and intrinsic water\uffe2\uff80\uff90use efficiency. These direct responses have the potential to increase plant growth, vegetation biomass, and soil organic matter; transferring carbon from the atmosphere into terrestrial ecosystems (a carbon sink). A substantial global terrestrial carbon sink would slow the rate of [CO2] increase and thus climate change. However, ecosystem CO2 responses are complex or confounded by concurrent changes in multiple agents of global change and evidence for a [CO2]\uffe2\uff80\uff90driven terrestrial carbon sink can appear contradictory. Here we synthesize theory and broad, multidisciplinary evidence for the effects of increasing [CO2] (iCO2) on the global terrestrial carbon sink. Evidence suggests a substantial increase in global photosynthesis since pre\uffe2\uff80\uff90industrial times. Established theory, supported by experiments, indicates that iCO2 is likely responsible for about half of the increase. Global carbon budgeting, atmospheric data, and forest inventories indicate a historical carbon sink, and these apparent iCO2 responses are high in comparison to experiments and predictions from theory. Plant mortality and soil carbon iCO2 responses are highly uncertain. In conclusion, a range of evidence supports a positive terrestrial carbon sink in response to iCO2, albeit with uncertain magnitude and strong suggestion of a role for additional agents of global change.</p>", "keywords": ["0106 biological sciences", "0301 basic medicine", "Carbon Sequestration", "CO fertilization", "550", "global carbon cycle", "Land-atmosphere feedback", "Climate Change", "01 natural sciences", "Carbon Cycle", "Global carbon cycle", "Terrestrial ecosystems", "03 medical and health sciences", "land\u2013atmosphere feedback", "forests and forestry", "atmospheric carbon dioxide", "XXXXXX - Unknown", "free-air CO enrichment (FACE)", "CO-fertilization hypothesis", "CO2-fertilization hypothesis", "CO2 fertilization", "Ecosystem", "0303 health sciences", "photosynthesis", "Beta factor", "Atmosphere", "500", "terrestrial ecosystems", "carbon dioxide", "Free-air CO2 enrichment (FACE)", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "carbon sequestration", "terrestrial ecosystems.", "Carbon dioxide", "13. Climate action", "[SDE]Environmental Sciences", "0401 agriculture", " forestry", " and fisheries", "beta factor", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "ecosystems", "free-air CO2 enrichment (FACE)"]}, "links": [{"href": "https://eprints.whiterose.ac.uk/165394/1/Walker_et_al_200713_Draft7_submitted.pdf"}, {"href": "https://nph.onlinelibrary.wiley.com/doi/pdf/10.1111/nph.16866"}, {"href": "https://doi.org/10.1111/nph.16866"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/nph.16866", "name": "item", "description": "10.1111/nph.16866", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.16866"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-21T00:00:00Z"}}, {"id": "10.5061/dryad.sn02v6x51", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-06-27T16:24:28Z", "type": "Dataset", "created": "2025-08-10", "title": "Herbivore grazing mitigates the negative effects of nitrogen deposition on soil organic carbon in low-diversity grassland", "description": "1. Changes in soil carbon (C) sequestration in grassland ecosystems have  important impacts on the global C cycle. As such, it is important that  researchers better understand the underlying mechanisms affecting soil C.  Increasing evidence has shown that atmospheric nitrogen (N) deposition can  cause dramatic changes in grassland soil C. It remains unclear whether  herbivore grazing, a primary means to manage and utilize grassland  resources, can regulate the effects of N deposition on soil C, and whether  these effects are dependent on plant community diversity. 2. Here, we  examined the joint effects of herbivore grazing and N-addition on soil  organic C (SOC) stocks in two types of communities with low and high plant  diversity, respectively. 3. Our results showed that the effects of  N-addition and its combination with herbivore grazing on grassland SOC  were inconsistent in the two types of communities. In the low-diversity  community, N-addition greatly decreased SOC stocks, while grazing  significantly increased it. Additionally, the grazing-induced increase in  soil C stocks in presence of N-addition was so great that it completely  counteracted the significant decline in SOC induced by N-addition.  However, in the high-diversity community, we observed no effects of  N-addition on SOC and grazing increased SOC only in the absence of  N-addition and had no significant effect in presence of N-addition. 4.  Synthesis and applications. Our study suggests that increased N deposition  can trigger a remarkable reduction in soil C sequestration in grasslands  with low plant diversity, but that herbivore grazing can offset this  decline, which may help to mitigate greenhouse gas emissions caused by  atmospheric N deposition. As a result, we suggest that moderate herbivore  grazing should be considered as an effective grassland management measure  for maintaining and improving grassland soil C sequestration as the  increasing global change such as elevated atmospheric carbon dioxide, N  deposition, and biodiversity losses threat.", "keywords": ["2. Zero hunger", "soil organic carbon", "global carbon cycle", "13. Climate action", "grassland management", "herbivore grazing", "atmospheric nitrogen deposition", "15. Life on land", "plant community composition"], "contacts": [{"organization": "Li, Guangyin, Cai, Jinting, Song, Xuxin, Pan, Xiaobin, Pan, Duofeng, Jiang, Shicheng, Sun, Jinyan, Zhang, Minna, Wang, Ling,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.sn02v6x51"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.sn02v6x51", "name": "item", "description": "10.5061/dryad.sn02v6x51", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.sn02v6x51"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-10-28T00:00:00Z"}}, {"id": "10.5281/zenodo.14560239", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-06-27T16:25:58Z", "type": "Dataset", "title": "Global maps of top- and subsoil organic carbon turnover times", "description": "This repository contains the dataset of the global maps of top- and subsoil organic carbon turnover times.  More details can refer to the paper:    Zhang, L., Yang, L., Crowther, T.W., Zohner, C.M., Doetterl, S., Heuvelink, G.B.M., Wadoux, A.M.J.-C., Zhu, A.-X., Pu, Y., Shen, F., Ma, H., Zou, Y., Zhou, C., 2025. Mapping global distributions, environmental controls, and uncertainties of apparent topsoil and subsoil organic carbon turnover times. Earth System Science Data 17, 2605\u20132623.  DOI:\u00a0https://doi.org/10.5194/essd-17-2605-2025  \u00a0   The code used for the analyses in this study is available at:\u00a0https://github.com/leizhang-geo/global_soil_carbon_turnover_time.git  For questions and more details of our study please contact the author: Lei Zhang (\u5f20\u78ca)  LZ's Homepage: https://leizhang-geo.github.io", "keywords": ["carbon turnover time", "depth-dependent", "global carbon cycle", "soil carbon", "carbon sequestration", "edaphic-climate interactions"], "contacts": [{"organization": "Zhang, Lei", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.14560239"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.14560239", "name": "item", "description": "10.5281/zenodo.14560239", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.14560239"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-01-01T00:00:00Z"}}, {"id": "10261/376885", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:28:58Z", "type": "Journal Article", "created": "2020-11-06", "title": "Organic Matter Degradation across Ecosystem Boundaries: The Need for a Unified Conceptualization", "description": "The global carbon cycle connects organic matter (OM) pools in soil, freshwater, and marine ecosystems with the atmosphere, thereby regulating their size and reactivity. Due to the complexity of biogeochemical processes and historically compartmentalized disciplines, ecosystem-specific conceptualizations of OM degradation have emerged independently of developments in other ecosystems. Recent discussions regarding the relative importance of molecular composition and ecosystem properties on OM degradation have diverged in opposing directions across subdisciplines, leaving our understanding inconsistent. Ecosystem-dependent theories are problematic since properties unique to an ecosystem may change in response to anthropogenic stressors, including climate change. The next breakthrough in our understanding of OM degradation requires a shift in focus towards developing a unified theory of controls on OM across ecosystems.", "keywords": ["0301 basic medicine", "[CHIM.ANAL] Chemical Sciences/Analytical chemistry", "global carbon cycle", "[SDE.MCG]Environmental Sciences/Global Changes", "Climate Change", "Concept Formation", "soil", "Carbon Cycle", "Global carbon cycle", "Soil", "03 medical and health sciences", "Freshwater", "[CHIM.ANAL]Chemical Sciences/Analytical chemistry", "[SDV.EE]Life Sciences [q-bio]/Ecology", "Dissolved organic matter", "14. Life underwater", "degradation rates", "freshwater", "Ecosystem", "organic matter", "Degradation rates", "0303 health sciences", "Marine", "marine", "biogeochemical cycles", "organic matter persistence", "dissolved organic matter", "15. Life on land", "Milj\u00f6vetenskap", "Biogeochemical cycles", "Carbon", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "[SDE.MCG] Environmental Sciences/Global Changes", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "Organic matter persistence", "13. Climate action", "Organic matter", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "environment", "Environmental Sciences"]}, "links": [{"href": "https://doi.org/10261/376885"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Trends%20in%20Ecology%20%26amp%3B%20Evolution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10261/376885", "name": "item", "description": "10261/376885", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10261/376885"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-01T00:00:00Z"}}, {"id": "3097621087", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-06-27T16:30:45Z", "type": "Journal Article", "created": "2020-11-06", "title": "Organic Matter Degradation across Ecosystem Boundaries: The Need for a Unified Conceptualization", "description": "The global carbon cycle connects organic matter (OM) pools in soil, freshwater, and marine ecosystems with the atmosphere, thereby regulating their size and reactivity. Due to the complexity of biogeochemical processes and historically compartmentalized disciplines, ecosystem-specific conceptualizations of OM degradation have emerged independently of developments in other ecosystems. Recent discussions regarding the relative importance of molecular composition and ecosystem properties on OM degradation have diverged in opposing directions across subdisciplines, leaving our understanding inconsistent. Ecosystem-dependent theories are problematic since properties unique to an ecosystem may change in response to anthropogenic stressors, including climate change. The next breakthrough in our understanding of OM degradation requires a shift in focus towards developing a unified theory of controls on OM across ecosystems.", "keywords": ["0301 basic medicine", "[CHIM.ANAL] Chemical Sciences/Analytical chemistry", "global carbon cycle", "[SDE.MCG]Environmental Sciences/Global Changes", "Climate Change", "Concept Formation", "soil", "Carbon Cycle", "Soil", "03 medical and health sciences", "[CHIM.ANAL]Chemical Sciences/Analytical chemistry", "[SDV.EE]Life Sciences [q-bio]/Ecology", "14. Life underwater", "degradation rates", "freshwater", "Ecosystem", "organic matter", "0303 health sciences", "marine", "biogeochemical cycles", "organic matter persistence", "dissolved organic matter", "15. Life on land", "Milj\u00f6vetenskap", "Carbon", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "[SDE.MCG] Environmental Sciences/Global Changes", "[SDV.EE] Life Sciences [q-bio]/Ecology", " environment", "13. Climate action", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "environment", "Environmental Sciences"]}, "links": [{"href": "https://doi.org/3097621087"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Trends%20in%20Ecology%20%26amp%3B%20Evolution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "3097621087", "name": "item", "description": "3097621087", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/3097621087"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-01T00:00:00Z"}}], "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+carbon+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+carbon+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+carbon+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+carbon+cycle&offset=7", "hreflang": "en-US"}], "numberMatched": 7, "numberReturned": 7, "distributedFeatures": [], "timeStamp": "2026-06-27T17:36:20.810066Z"}