干旱区生态环境知识资源中心(Arid): Spatial-temporal variations in vegetation with changing water stress in the Kongqi River basin, China

Arid

DOI	10.1002/eco.2546
	Spatial-temporal variations in vegetation with changing water stress in the Kongqi River basin, China
	Zhang, Haoyue; Wang, Xu-Sheng; Zhang, Jun; Gu, Xiaofan; Yin, Lihe; Yeh, Pat J. -F.
通讯作者	Wang, XS
来源期刊	ECOHYDROLOGY
ISSN	1936-0584
EISSN	1936-0592
出版年	2023
卷号	16 期号:5
英文摘要	Identifying dominant water stress on vegetation growth over the arid basins is essential to better understand ecosystems and water interactions, which are fundamental in managing regional water resources. The Kongqi River basin is an ecologically sensitive area with limited water resources in the northern part of Tarim Basin in northwest China. How is the spatial distribution of vegetation controlled by natural conditions and anthropogenic regulation of water resources is a concern for ecology system protection. This study explores the spatio-temporal variations in the remote-sensing vegetation index across the basin and identifies water stress forces with the Mann-Kendall trend test and linear regression analysis. Results show that the controls of vegetation change are different among geomorphological units over the past 20 years. In the northern mountains, the increasing vegetation trend mainly responds to climate change, particularly to increased precipitation. In contrast, in the plain area, the vegetation change is controlled by changes in hydrologic and anthropogenic water stresses. A significant rise in surface water and groundwater utilization counteracts the negative effect of the increasing hydrologic water stress in the upstream oasis. However, the increasing anthropogenic water stress contributed to more than 50% of vegetation decay in the downstream area during 2004-2015. The ecological water conveyance beginning in 2016 has promoted vegetation restoration, but the effect decreased with distance to the upstream area and showed a delay in response. This study provides evidence for ecological consequence of anthropogenic water stress that is beneficial to improve water resources management and ecosystem restoration.
英文关键词	arid land ecological water conveyance Kongqi River Populus euphratica forest water stress
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000962032700001
WOS关键词	GROUNDWATER
WOS类目	Ecology ; Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395892
推荐引用方式 GB/T 7714	Zhang, Haoyue,Wang, Xu-Sheng,Zhang, Jun,et al. Spatial-temporal variations in vegetation with changing water stress in the Kongqi River basin, China[J],2023,16(5).
APA	Zhang, Haoyue,Wang, Xu-Sheng,Zhang, Jun,Gu, Xiaofan,Yin, Lihe,&Yeh, Pat J. -F..(2023).Spatial-temporal variations in vegetation with changing water stress in the Kongqi River basin, China.ECOHYDROLOGY,16(5).
MLA	Zhang, Haoyue,et al."Spatial-temporal variations in vegetation with changing water stress in the Kongqi River basin, China".ECOHYDROLOGY 16.5(2023).