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(Article of periodic en Anglais - 2012)

Document title

Effects of land use, land cover and rainfall regimes on the surface runoff and soil loss on karst slopes in southwest China

Authors(s) and Affiliation(s)

PENG T. (1 2 3) ; WANG S.-J. (1 3) ;
(1) State Key Lab. of Environmental Geochemistry, Inst. of Geochemistry, Chinese Academy of Sciences, Guiyang, CHINE
(2) Graduate Univ. of Chinese Academy of Sciences, Beijing, CHINE
(3) Puding Karst Ecosystem Research Station, Inst. of Geochemistry, CAS, Guiyang, CHINE

Abstract

Surface runoff and soil loss from 2007 to 2010 related to land use and rainfall regimes in karst hill slopes in Puding County, in Guizhou Province, were analyzed. Using the hierarchical clustering method, 61 rainfall events under the subtropical monsoon climate condition were classified into 5 types of rainfall regimes according to the depth, maximum 30-min intensity, and duration of rainfall. The observations indicated that limestone fissures and fractures play important roles in surface runoff generation on karst limestone slopes due to their large storage capacity and high infiltration rate. Lastly, the soil erosion risk in the karst pure limestone slope is quite high and should be paid particular attention, especially in regards to over-grazing because the soil loss created by a single heavy rainstorm in pastureland was 5 times the annual soil loss tolerance

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2012, vol. 90, no1 [pp. 53-62]

Bibliographic references : 1 p.

Collation : 6 fig., 6 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.11.001

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 25991986 : Permanent link - XML version
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