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(Article of periodic en Anglais - 2012)

Document title

Soil loss tolerance in the black soil region of Northeast China

Authors(s) and Affiliation(s)

DUAN X. (1) ; XIE Y. (2) ; LIU B. (2) ; LIU G. (2) ; FENG Y. (2) ; GAO X. (2) ;
(1) Asian International Rivers Center, Yunnan University, Kunming, CHINE
(2) State Key Lab. of Earth Surface Processes and Resource Ecology, School of Geography, Normal Univ., Beijing, CHINE

Abstract

Soil loss tolerance (T) is the maximum rate of annual soil erosion that is tolerated and still allows a high level of crop productivity to be sustained economically and indefinitely. In the black soil region of Northeast China, an empirically determined, default T value is used for designing land restoration strategies for different types of soils. The aim of this study was to provide a methodology to calculate a quantitative T for different black soil species. A field investigation was conducted to determine the typical soil profiles of 21 black soil species in the study area and a quantitative methodology based on a modified soil productivity index model was established to calculate the T values. Compared with the currently used of regional unified standard T value, the proposed method, which determines T using specific soil profile indices, has more practical implications for effective, sustainable management of soil and water conservation

Source

Article of periodic

published at : Journal of geographical sciences. Acta geographica sinica / ISSN 1009-637X

Editor : CHINE

Millesime : 2012, vol. 22, no4 [pp. 737-751]

Bibliographic references : 44 ref.

Collation : 4 fig., 3 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-012-0959-5

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