干旱区生态环境知识资源中心(Arid): Attribution of runoff and hydrological drought changes in an ecologically vulnerable basin in semi-arid regions of China

Arid

DOI	10.1002/hyp.15003
	Attribution of runoff and hydrological drought changes in an ecologically vulnerable basin in semi-arid regions of China
	Li, Xinyue; Wang, Yuntao; Xue, Baolin; Yinglan, A.; Zhang, Xiaojing; Wang, Guoqiang
通讯作者	Xue, BL
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
出版年	2023
卷号	37 期号:10
英文摘要	Climate change and human activities have been widely recognized as two major factors that deeply influence hydrological processes. Evaluating and identifying the contribution between different drivers contributes to better regional water management regulation. In this study, we used the variable infiltration capacity (VIC) model to quantify the contributions of different climatic variables and human activities to runoff in the Hunhe basin, which has a semiarid climate, in northern China. Through trend analysis, the study period is divided into the 'baseline period' (1982-1999) and the 'change period' (2000-2020). The results indicated that compared with climate change, human activities were the major factors decreasing runoff, contributing more than 86.3% to the runoff reduction in the change period. Climate change increased winter runoff but decreased summer and autumn runoff, resulting in an overall decrease in runoff. There is a trend of increasing severity of hydrological drought in the Hunhe basin, where climate change accounted for 28.2% of the total impact and human activities accounted for 72.8%. The change in runoff and hydrological drought was mainly due to human activities, including changing farmland to grassland and forest. These results would be helpful for policy-makers and researchers to better understand the responses of runoff and hydrological drought to these changing environmental conditions and offering references for future water resource planning and management at the basin scale. Compared with climate change, human activities were the major factors decreasing runoff, contributing more than 86.3% to the runoff reduction in the change period in the Hunhe basin. Climate change increased winter runoff but decreased summer and autumn runoff, resulting in an overall decrease in runoff. There is a trend of increasing severity of hydrological drought in the Hunhe basin, where climate change accounted for 28.2% of the total impact and human activities accounted for 72.8%.image
英文关键词	afforestation climate change hydrological drought runoff VIC model
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001078205700001
WOS关键词	CLIMATE-CHANGE ; RIVER FLOW ; SCALE
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396876
推荐引用方式 GB/T 7714	Li, Xinyue,Wang, Yuntao,Xue, Baolin,et al. Attribution of runoff and hydrological drought changes in an ecologically vulnerable basin in semi-arid regions of China[J],2023,37(10).
APA	Li, Xinyue,Wang, Yuntao,Xue, Baolin,Yinglan, A.,Zhang, Xiaojing,&Wang, Guoqiang.(2023).Attribution of runoff and hydrological drought changes in an ecologically vulnerable basin in semi-arid regions of China.HYDROLOGICAL PROCESSES,37(10).
MLA	Li, Xinyue,et al."Attribution of runoff and hydrological drought changes in an ecologically vulnerable basin in semi-arid regions of China".HYDROLOGICAL PROCESSES 37.10(2023).