Mots-clés
Années 1980-2008 ; Carbone ; Changement climatique ; Chine ; Effet de serre ; Espace-temps ; Modèle ; Propriétés du sol ; Riziculture ; Sol ; Sol cultivé ; Séquestration du carboneCarbon ; Carbon sequestration ; China ; Climatic change ; Cultivated land ; Greenhouse effect ; Model ; Rice cultivation ; Soil ; Soil properties ; Space timeCambio climático ; Carbono ; China ; Cultivo de arroz ; Efecto invernadero ; Espacio-tiempo ; Modelo ; Propiedades del suelo ; Suelo ; Suelo cultivadoSpatially explicit simulation of soil organic carbon dynamics in China's paddy soils
Auteur(s) et Affiliation(s)
XU, S.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine
SHI, X.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine
ZHAO, Y.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine
YU, D.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine
WANG, S.
School of Geodesy and Geomatics, Anhui Univ. of Science and Technology, Huainan, Chine
TAN, M.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
SUN, W.
State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, Chine
LI, C.
Inst. for the Study of Earth, Oceans and Space, Complex Systems Research Center, Univ. New Hampshire, Durham, Etats-Unis
Description :
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 method was developed by integrating DNDC with the latest 1:1,000,000 soil database, derived from 1490 paddy soil profiles collected during the Second National Soil Survey of China. There were, however, large regional differences in sequestration outcomes. 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.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2012, vol. 92, p. 113-121, nombre de pages : 9, Références bibliographiques : 39 ref.
Date :
2012
Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)