NDLI: Quantitative estimation on contributions of climate changes and human activities to decreasing runoff in Weihe River Basin, China

Content Provider	Springer Nature Link
Author	Huang, Shengzhi Huang, Qiang Chen, Yutong
Copyright Year	2015
Abstract	Human activities and climate changes are deemed to be two primary driving factors influencing the changes of hydrological processes, and quantitatively separating their influences on runoff changes will be of great significance to regional water resources planning and management. In this study, the impact of climate changes and human activities was initially qualitatively distinguished through a coupled water and energy budgets analysis, and then this effect was further separated by means of a quantitative estimation based on hydrological sensitivity analysis. The results show that: 1) precipitation, wind speed, potential evapotranspiration and runoff have a significantly decreasing trend, while temperature has a remarkably increasing tendency in the Weihe River Basin, China; 2) the major driving factor on runoff decrease in the 1970s and 1990s in the basin is climate changes compared with that in the baseline 1960s, while that in the 1980s and 2000s is human activities. Compared with the results based on Variable Infiltration Capacity (VIC) model, the contributions calculated in this study have certain reliability. The results are of great significance to local water resources planning and management.
Starting Page	569
Ending Page	581
Page Count	13
File Format	PDF
ISSN	10020063
Journal	Chinese Geographical Science
Volume Number	25
Issue Number	5
e-ISSN	1993064X
Language	English
Publisher	Science Press
Publisher Date	2015-01-13
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	climate changes human activities runoff decrease quantitative analysis Weihe River Basin Geography (general)
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Geography, Planning and Development

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