干旱区生态环境知识资源中心(Arid): Effect of Climate Variability and Human Activities on Runoff in the Jinghe River Basin, Northwest China

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	Effect of Climate Variability and Human Activities on Runoff in the Jinghe River Basin, Northwest China
	Yao Junqiang; Zhao Qiudong; Liu Zhihui
来源期刊	Journal of Mountain Science
ISSN	1672-6316
出版年	2015
卷号	12 期号:2 页码:358-367
英文摘要	Much attention has recently been focused on the effects of climate variability and human activities on the runoff. In this study, we analyzed 56-yr (1957-2012) runoff change and patterns in the Jinghe River Basin (JRB) in the arid region of northwest China. The nonparametric Mann-Kendall test and the precipitation-runoff double cumulative curve (PRDCC) were used to identify change trend and abrupt change points in the annual runoff. It was found that the runoff in the JRB has periodically fluctuated in the past 56 yr. Abrupt change point in annual runoff was identified in the JRB, which occurred in the years around 1964 and 1996 dividing the long-term hydrologic series into a natural period (1957 - 1964) and a climate and man-induced period (1965 - 1996 and 1997 - 2012). In the 1965 - 1996 period, human activities were the main factor that decreased runoff with contribution of 88.9%, while climate variability only accounted for 11.1%. However, the impact of climate variability has been increased from 11.1% to 47.5% during 1997 - 2012, showing that runoff in JRB is more sensitive to climate variability during global warming. This study distinguishes the effect of climate variability from human activities on runoff, which can do duty for a reference for regional water resources assessment and management.
英文关键词	Water resource Runoff Climate variability Precipitation Jinghe River Basin
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:5380087
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335457
作者单位	Yao Junqiang, School of Resources and Environment Science, Xinjiang University, Key Laboratory of Oasis Ecology of Ministry of Education, Urumqi, Xinjiang 830046, China.; Liu Zhihui, School of Resources and Environment Science, Xinjiang University, Key Laboratory of Oasis Ecology of Ministry of Education, Urumqi, Xinjiang 830046, China.; Zhao Qiudong, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.
推荐引用方式 GB/T 7714	Yao Junqiang,Zhao Qiudong,Liu Zhihui. Effect of Climate Variability and Human Activities on Runoff in the Jinghe River Basin, Northwest China[J],2015,12(2):358-367.
APA	Yao Junqiang,Zhao Qiudong,&Liu Zhihui.(2015).Effect of Climate Variability and Human Activities on Runoff in the Jinghe River Basin, Northwest China.Journal of Mountain Science,12(2),358-367.
MLA	Yao Junqiang,et al."Effect of Climate Variability and Human Activities on Runoff in the Jinghe River Basin, Northwest China".Journal of Mountain Science 12.2(2015):358-367.