A case study of regional eco-hydrological characteristics in the Tao River Basin, northwestern China, based on evapotranspiration estimated by a coupled Budyko Equation-crop coefficient approach

被引：10

作者：

Li ChangBin ^{[1
,3
]}

Zhang XueLei ^{[1
]}

Qi JiaGuo ^{[2
,3
]}

Wang ShuaiBing ^{[1
]}

Yang LinShan ^{[1
]}

Yang WenJin ^{[1
]}

Zhu GaoFeng ^{[1
]}

Hao Qiang ^{[1
]}

机构：

[1] Lanzhou Univ, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China

[2] Zhejiang Univ, Ocean Coll, Hangzhou 310058, Zhejiang, Peoples R China

[3] Michigan State Univ, Ctr Global Change & Earth Observat, E Lansing, MI 48823 USA

来源：

SCIENCE CHINA-EARTH SCIENCES | 2015年 / 58卷 / 11期

基金：

中国国家自然科学基金;

关键词：

evapotranspiration; Budyko Equation; single crop coefficient; eco-hydrology; Tao River Basin; CLIMATE-CHANGE; MODEL; RUNOFF; TRANSPIRATION; GROUNDWATER; IMPACTS; DESERT;

D O I：

10.1007/s11430-015-5087-5

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In a case study in Tao River Basin, China, we derived a high spatial-resolution regional distribution of evapotranspiration (ET) using the single crop coefficient method and Budyko equation. We then further analyzed the spatio-temporal characteristics of this diverse eco-hydrological basin from 2001-2010. The results suggest that the single crop coefficient method based on leaf area index captures better spatial and temporal dynamics of the regional ET than did the Budyko Equation method. The rising temperature was the main reason for the increasing ET in the Tao River Basin during 2001-2010. Areas with high ET efficiency were distributed mainly in the areas where the vegetation coverage was high, and a lower runoff coefficient responded. The estimated spatial patterns of ET allowed an improved understanding of the eco-hydrological processes within the Tao River Basin and the method used might be generalized as a reference for future regional-scale eco-hydrological research.

引用

页码：2103 / 2112

页数：10

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