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(Article of periodic en Anglais - 2012)

Document title

Spatially explicit simulation of soil organic carbon dynamics in China's paddy soils

Authors(s) and Affiliation(s)

XU S. (1 2) ; SHI X. (1 2) ; ZHAO Y. (1 2) ; YU D. (1 2) ; WANG S. (3) ; TAN M. (1) ; SUN W. (1) ; LI C. (4) ;
(1) State Key Lab. of Soil and Sustainable Agriculture, Inst. of Soil Sciences, CAS, Nanjing, CHINE
(2) Graduate Univ. of Chinese Academy of Sciences, Beijing, CHINE
(3) School of Geodesy and Geomatics, Anhui Univ. of Science and Technology, Huainan, CHINE
(4) Inst. for the Study of Earth, Oceans and Space, Complex Systems Research Center, Univ. New Hampshire, Durham, ETATS-UNIS

Abstract

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

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2012, vol. 92 [pp. 113-121]

Bibliographic references : 39 ref.

Collation : 6 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.12.005

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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