Landscape structure and use, climate, and water movement in the Mekong River basin

被引：68

作者：

Costa-Cabral, Mariza C. ^{[2
]}

Richey, Jeffrey E. ^{[1
]}

Goteti, Gopi ^{[2
]}

Lettenmaier, Dennis P. ^{[2
]}

Feldkotter, Christoph

Snidvongs, Anond ^{[3
]}

机构：

[1] Univ Washington, Sch Oceanog, Seattle, WA 98195 USA

[2] Univ Washington, Dept Civil & Environm Engn, Seattle, WA 98195 USA

[3] Chulalongkorn Univ, SE Asia START Global Change Reg Ctr, Bangkok 10330, Thailand

来源：

HYDROLOGICAL PROCESSES | 2008年 / 22卷 / 12期

关键词：

land cover and use change; runoff and stream-flow; south-east Asia; Mekong River basin; macro-scale hydrologic model; soil moisture antecedent conditions;

D O I：

10.1002/hyp.6740

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

In this article the relative roles of precipitation and soil moisture in influencing runoff variability in the Mekong River basin are addressed. The factors controlling runoff generation are analysed in a calibrated macro-scale hydrologic model, and it is demonstrated that, in addition to rainfall, simulated soil moisture plays a decisive role in establishing the timing and amount of generated runoff. Soil moisture is a variable with a long memory for antecedent hydrologic fluxes that is influenced by soil hydrologic parameters, topography, and land cover type. The influence of land cover on soil moisture implies significant hydrologic consequences for large-scale deforestation and expansion of agricultural land. Copyright (c) 2007 John Wiley & Sons, Ltd.

引用

页码：1731 / 1746

页数：16

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