(Article of periodic en Anglais - 2009)

Document title

Research on the SCS-CN initial abstraction ratio using rainfall-runoff event analysis in the Three Gorges Area, China

Authors(s) and Affiliation(s)

SHI Z.-H. (1 2) ; CHEN L.-D. (2) ; FANG N.-F. (1) ; QIN D.-F. (3) ; CAI C.-F. (1) ;
(1) Key Lab. of Subtropical Agriculture & Environment of Ministry of Agriculture, Agriculture Univ., Wuhan, Huazhong, CHINE
(2) State Key Lab. of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, CAS, Beijing, CHINE
(3) Soil and Water Conservation Bureau, Hubei Province, Zigui, CHINE


The Soil Conservation Service Curve Number (SCS-CN) method is widely used for predicting direct runoff from rainfall. The aims of this study were : 1) to determine the initial abstraction ratio, in an experimental watershed in the Three Gorges Area (TGA), by analyzing measured rainfall-runoff events; 2) to compare the performance of the traditional and modified ratio of initial abstraction (Ia) to maximum potential retention (S) values with observed rainfall-runoff data during 6 years. Discussion of the results. The Ia/S-adjusted SCS-CN method appears to be better appropriate for runoff prediction in the Three Gorges Area of China


Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2009, vol. 77, no1 [pp. 1-7]

Bibliographic references : 34 ref.

Collation : 7 fig., 4 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2008.11.006

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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