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(Article of periodic en Anglais - 2013)

Document title

Map scale effects of soil databases on modeling organic carbon dynamics for paddy soils of China

Authors(s) and Affiliation(s)

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

Abstract

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

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2013, vol. 104 [pp. 67-76]

Bibliographic references : 1 p.

Collation : 8 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.2012.10.017

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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