Spatial distribution of soil organic carbon stocks in France
| العنوان: | Spatial distribution of soil organic carbon stocks in France |
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| المؤلفون: | Jeroen Meersmans, C. Jolivet, L. Boulonne, Manuel Martin, Dominique Arrouays, Martin Wattenbach, Pete Smith |
| المساهمون: | InfoSol (InfoSol), Institut National de la Recherche Agronomique (INRA), Free University of Berlin (FU), Institute of Biological and Environmental Sciences [Aberdeen], University of Aberdeen, Institute of Biological and Environmental Sciences, 0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum |
| المصدر: | European Geosciences Union (EGU) General Assembly 2011 European Geosciences Union (EGU) General Assembly 2011, Apr 2011, Vienne, Austria. 2011 Biogeosciences 5 (8), 1053-1065. (2011) Biogeosciences Biogeosciences, European Geosciences Union, 2011, 8 (5), pp.1053-1065. ⟨10.5194/bg-8-1053-2011⟩ European Geosciences Union (EGU) General Assembly 2011, Vienne, AUT, 2011-04-03-2011-04-08 Biogeosciences, Vol 8, Iss 5, Pp 1053-1065 (2011) |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | sol, 010504 meteorology & atmospheric sciences, Operations research, [SDV]Life Sciences [q-bio], PEDOLOGIE, lcsh:Life, 550 - Earth sciences, 01 natural sciences, Land use, land-use change and forestry, License, ComputingMilieux_MISCELLANEOUS, 2. Zero hunger, rmqs, lcsh:QE1-996.5, Environmental resource management, 04 agricultural and veterinary sciences, Creative commons, environnement, Geography, Work (electrical), [SDE]Environmental Sciences, Soil organic carbon stocks, europe, france, utilisation du sol, Atmospheric carbon cycle, Climate change, Soil science, Spatial distribution, lcsh:QH540-549.5, [SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biochemistry [q-bio.BM], Ecology, Evolution, Behavior and Systematics, Stock (geology), Earth-Surface Processes, 0105 earth and related environmental sciences, Land use, climat, business.industry, pédologie, Primary production, Soil carbon, 15. Life on land, lcsh:Geology, lcsh:QH501-531, 13. Climate action, matière organique, Soil water, réseau de mesures, 040103 agronomy & agriculture, Environmental science, cartographie, 0401 agriculture, forestry, and fisheries, lcsh:Ecology, Physical geography, carbone, business, Attribution, qualité du sol |
| الوصف: | Article en open access; International audience; Soil organic carbon plays a major role in the global carbon budget, and can act as a source or a sink of atmospheric carbon, thereby possibly influencing the course of climate change. Changes in soil organic carbon (SOC) stocks are now taken into account in international negotiations regarding climate change. Consequently, developing sampling schemes and models for estimating the spatial distribution of SOC stocks is a priority. The French soil monitoring network has been established on a 16 km x 16 km grid and the first sampling campaign has recently been completed, providing around 2200 measurements of stocks of soil organic carbon, obtained through an in situ composite sampling, uniformly distributed over the French territory. We calibrated a boosted regression tree model on the observed stocks, modelling SOC stocks as a function of other variables such as climatic parameters, vegetation net primary productivity, soil properties and land use. The calibrated model was evaluated through cross-validation and eventually used for estimating SOC stocks for mainland France. Two other models were calibrated on forest and agricultural soils separately, in order to assess more precisely the influence of pedo-climatic variables on SOC for such soils. The boosted regression tree model showed good predictive ability, and enabled quantification of relationships between SOC stocks and pedo-climatic variables (plus their interactions) over the French territory. These relationships strongly depended on the land use, and more specifically, differed between forest soils and cultivated soil. The total estimate of SOC stocks in France was 3.260 +/- 0.872 PgC for the first 30 cm. It was compared to another estimate, based on the previously published European soil organic carbon and bulk density maps, of 5.303 PgC. We demonstrate that the present estimate might better represent the actual SOC stock distributions of France, and consequently that the previously published approach at the European level greatly overestimates SOC stocks. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1726-4189 1726-4170 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3254e785911fca7484e6557b43f3b87e https://www.biogeosciences.net/8/1053/2011/ |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....3254e785911fca7484e6557b43f3b87e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17264189 17264170 |
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