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(Article of periodic en Anglais - 2012)

Document title

Quantitative estimation of the impact of precipitation and human activities on runoff change of the Huangfuchuan River Basin

Authors(s) and Affiliation(s)

WANG S. (1) ; YAN Y. (1) ; YAN M. (1) ; ZHAO X. (1) ;
(1) Key Lab. of Water Cycle and Related Surface Processes, Inst. of Geographic Sciences and Natural resources Research, CAS, Beijing, CHINE

Abstract

The aim of this study was to analyze the variation trends of the runoff and quantitatively assess the contributions of precipitation and human activities to the runoff change in the Huangfuchuan River Basin based on the measured data in 1960–2008. Two inflection points (turning years) of 1979 and 1998 for the accumulative runoff change, and one inflection point of 1979 for the accumulative precipitation change were identified using the methods of accumulative anomaly analysis. A new method of slope change ratio of accumulative quantity (SCRAQ) was put forward and used in this study to calculate the contributions of different factors to the runoff change. Taking 1960–1979 as the base period, the contribution rate of the precipitation and human activities to the decreased runoff was 36.43% and 63.57% in 1980–1997, and 16.81% and 83.19% in 1998–2008, respectively. The results will play an important role in the drainage basin management

Source

Article of periodic

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

Editor : CHINE

Millesime : 2012, vol. 22, no5 [pp. 906-918]

Bibliographic references : 24 ref.

Collation : 7 fig., 1 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-012-0972-8

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