干旱区生态环境知识资源中心(Arid): Impacts of climate change and human activities on runoff change in a typical arid watershed, NW China

Arid

DOI	10.1016/j.ecolind.2020.107013
	Impacts of climate change and human activities on runoff change in a typical arid watershed, NW China
	Xue, Dongxiang; Zhou, Junju; Zhao, Xi; Liu, Chunfang; Wei, Wei; Yang, Xuemei; Li, Qiaoqiao; Zhao, Yaru
通讯作者	Zhou, JJ (corresponding author), Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China.
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2021
卷号	121
英文摘要	The Shiyang River Basin is a typical arid watershed in Northwest China. Scientific understanding of the driving mechanism of runoff change is the basis of scientific utilization of water resources and regional sustainable development. In this study, runoff changes at different time scales were analyzed for the period 1960-2018, and the impacts of climate variability and human activities on runoff were investigated in the middle and lower reaches of the Shiyang River Basin (SRB). A combination of mutation analysis and human-designed analysis was adopted to divide the study period into the baseline period and the variation period. The Mann-Kendall test (M-K) and Double Mass Curve method (DMC) were used to detect abrupt changes and quantify the relative effects of climate change and human activities on runoff. The results reveal a significant declining trend in annual runoff on the whole in the middle and lower reaches of the SRB, and there was an obvious recovery trend after the implementation of the Comprehensive Treatment Program of the SRB (CTSRB) in 2007. Abrupt changes occurred in 1976, 1991 and 2007, which divided the study period into the baseline period (1960-1975), the Variation I period (1976-1990), the Variation II period (1991-2006) and the Variation III period (2007-2018). The contribution of human activities to runoff reduction was 88.72%, whereas the contribution of climate change to runoff reduction was only 11.28%. Furthermore, the contribution of human activities to runoff reduction in the Variation I period, Variation II period and Variation III period was 89.44%, 93.02% and 83.69%, respectively. Therefore, human activities played the most dominant role in the variation of runoff, followed by climate change and upstream runoff. Further analysis of the impact of human activities on runoff indicated that agricultural irrigation was the dominant factor of runoff reduction. This study can provide detailed information on water resources and a scientific basis for the development and utilization of water resources in the future.
英文关键词	Climate change Human activities Runoff Shiyang River Basin (SRB) Quantitative assessment
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000604889200003
WOS关键词	SHIYANG RIVER-BASIN ; LAND-USE ; VARIABILITY ; STREAMFLOW ; REGION ; CATCHMENT ; PLATEAU
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347828
作者单位	[Xue, Dongxiang; Zhou, Junju; Zhao, Xi; Wei, Wei; Yang, Xuemei; Li, Qiaoqiao; Zhao, Yaru] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Zhou, Junju; Liu, Chunfang; Wei, Wei] Gansu Engn Res Ctr Land Utilizat & Comprehens Con, Lanzhou 730070, Peoples R China; [Liu, Chunfang] Northwest Normal Univ, Coll Social Dev & Publ Adm, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Xue, Dongxiang,Zhou, Junju,Zhao, Xi,et al. Impacts of climate change and human activities on runoff change in a typical arid watershed, NW China[J],2021,121.
APA	Xue, Dongxiang.,Zhou, Junju.,Zhao, Xi.,Liu, Chunfang.,Wei, Wei.,...&Zhao, Yaru.(2021).Impacts of climate change and human activities on runoff change in a typical arid watershed, NW China.ECOLOGICAL INDICATORS,121.
MLA	Xue, Dongxiang,et al."Impacts of climate change and human activities on runoff change in a typical arid watershed, NW China".ECOLOGICAL INDICATORS 121(2021).