Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China

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	Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China
	Zhan C. S. ; Jiang S. S. ; Sun F. B. ; Jia Y. W. ; Niu C. W. ; Yue W. F.
	2014
关键词	Runoff Climate change Elasticity Watersheds
英文摘要	Surface runoff from the Wei River basin, the largest tributary of the Yellow River in China, has dramatically decreased over last 51 years from 1958 to 2008. Climate change and human activities have been identified as the two main reasons for the decrease in runoff. The study period is split into two sub-periods (1958-1989 and 1990-2008) using the Mann-Kendall jump test. This study develops an improved climate elasticity method based on the original climate elasticity method, and conducts a quantitative assessment of the impact of climate change and human activities on the runoff decrease in the Wei River basin. The results from the original climate elasticity method show that climatic impacts contribute 37-40% to the decrease in runoff, while human impacts contribute 60-63%. In contrast, the results from the improved climate elasticity method yield a climatic contribution to runoff decrease of 22-29% and a human contribution of 71-78%. A discussion of the simulation reliability and uncertainty concludes that the improved climate elasticity method has a better mechanism and can provide more reasonable results. Author(s) 2014.
出处	Hydrology and Earth System Sciences
卷	18 期:8 页:3069-3077
收录类别	EI
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/31430]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Zhan C. S.,Jiang S. S.,Sun F. B.,et al. Quantitative contribution of climate change and human activities to runoff changes in the Wei River basin, China. 2014.