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(Article of periodic en Anglais - 2011)

Document title

Impacts of socio-economic factors on sediment yield in the Upper Yangtze River

Authors(s) and Affiliation(s)

DU J. (1 2) ; SHI C. (1) ; FAN X. (1 2) ; ZHOU Y. (1 2) ;
(1) Key Lab. of Water Cycle and Related Surface Processes, Inst. of Geographic Sciences and Natural resources Research, CAS, Beijing, CHINE
(2) Graduate Univ. of Chinese Academy of Sciences, Beijing, CHINE

Abstract

Taking Sichuan Province and Chongqing City as an example, this paper studies the relationship between socio-economic factors and sediment yield in the Upper Yangtze River based on section data in 1989 and 2007. The results show that sediment yield is significantly correlated with population density and cultivated area, in which the former appears to be more closely related to sediment yield. Moreover, in the relation of sediment yield vs. population density, a critical value of population density exists. This phenomenon essentially reflects the influence of natural factors, such as topography, precipitation and soil property, and some human activities on sediment yield. It is also found that population tends to move from the areas with bad environment and high sediment yield to the areas with more comfortable environment and less sediment yield

Source

Article of periodic

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

Editor : CHINE

Millesime : 2011, vol. 21, no2 [pp. 359-371]

Bibliographic references : 34 ref.

Collation : 5 fig., 1 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1007/s11442-011-0850-9

Tous droits réservés © Prolig -$BIbliographie Géographique Internationale (BGI), 2011
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