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Par Collection Par Auteur- SHI, X. (2)
- TAN, M. (2)
- YU, D. (2)
- ZHAO, Y. (2)
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- LI, C. (1)
- SUN, W. (1)
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- Années 1980-2008 ; Base de données ; Biogéochimie ; Carbone ; Carte thématique ; Chine ; Cycle du carbone ; Echelle ; Géochimie ; Modèle ; Propriétés du sol ; Sol ; Sol cultivé (1)
- Années 1980-2008 ; Carbone ; Changement climatique ; Chine ; Effet de serre ; Espace-temps ; Modèle ; Propriétés du sol ; Riziculture ; Sol ; Sol cultivé ; Séquestration du carbone (1)
- Base de datos ; Biogeoquímica ; Carbono ; China ; Ciclo del carbono ; Escala ; Geoquímica ; Mapa temático ; Modelo ; Propiedades del suelo ; Suelo ; Suelo cultivado (1)
- Biogeochemistry ; Carbon ; Carbon cycle ; China ; Cultivated land ; Data base ; Geochemistry ; Model ; Scale ; Soil ; Soil properties ; Thematic map (1)
- Cambio climático ; Carbono ; China ; Cultivo de arroz ; Efecto invernadero ; Espacio-tiempo ; Modelo ; Propiedades del suelo ; Suelo ; Suelo cultivado (1)
- Carbon ; Carbon sequestration ; China ; Climatic change ; Cultivated land ; Greenhouse effect ; Model ; Rice cultivation ; Soil ; Soil properties ; Space time (1)
- To improve the understanding of map scale associated uncertainty, the DeNitrification–DeComposition (DNDC) model were parameterized with 3 soil polygon-based databases at scales of 1:1,000,000, 1:4,000,000, and 1:14,000,000 to simulate SOC stocks (0
- –30 cm) for paddy soils of China and their changes from 1980 to 2008. It is showed that SOC stock estimates decreased as map scale decreased from 1:4,000,000 to 1:14,000,000. The multi-scale simulation results indicate that the application of 1
- :1,000,000 scale soil polygon-based database could reduce the inaccuracy of national SOC stock estimates and contribute to improved assessment of continental and global carbon balance.
- To reduce uncertainties from upscaling spatial processes of the DeNitrification-DeComposition (DNDC) model for improving the definition of China's paddy soils SOC stocks (0-30 cm) and their changes from 1980 to 2008, a soil polygon-based modeling
- . Increases in paddy soil SOC stocks were found predominantly in South, Eastern and Southwest China. Enhancement in the soil databases with higher resolution inputs should improve the C sequestration estimates of any area of interest.