干旱区生态环境知识资源中心(Arid): Spatiotemporal variability and controlling factors of groundwater depletion in endorheic basins of Northwest China

Arid

DOI	10.1016/j.jenvman.2023.118468
	Spatiotemporal variability and controlling factors of groundwater depletion in endorheic basins of Northwest China
	Cheng, Wenju; Feng, Qi; Xi, Haiyang; Yin, Xinwei; Sindikubwabo, Celestin; Habiyakare, Telesphore; Chen, Yuqing; Zhao, Xinyue
通讯作者	Feng, Q
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2023
卷号	344
英文摘要	Recent global groundwater overpumping is threatening ecosystem stability and food security, particularly in arid basins. A solid investigation regarding the drivers of groundwater depletion is vital for groundwater restoration, hitherto, yet it remains largely unquantified. Here, a framework to quantify the contribution of natural forcing (NF) and anthropogenic perturbations (AP) to groundwater storage anomalies (GWSA) variability by separating the GWSA estimated by the Gravity Recovery and Climate Experiment (GRACE) satellite into natural- and human-induced GWSA was proposed in the northwest endorheic basin (NWEB) of China. Further, a multiple linear regression model was established for GWSA change prediction. Our results showed that, during the period 2003-2020, the GWSA depleted at a rate of 0.25 cm yr  1 in the entire NWEB. In addition, GWSA was found to decrease significantly (exceeding 1 cm yr  1) in the west of NWEB where there are heavily irrigated areas, and has become one of the regions with the most serious groundwater depletion in China. Whereas a significantly increasing trend (greater than 0.5 cm yr  1) was observed in the Qaidam basin and south part of the Tarim River basin, becoming a groundwater enrichment reservoir in NWEB. The negative contribution of AP to groundwater depletion has increased from 3% to 95% in the last decade, as determined by separating the effects of NF and AP on GWSA. The rapid expansion of the cropland area and the increase in water use due to population growth are investigated to be the main reasons for GWSA depletion, particularly in the North Tianshan Rivers, Turpan-Hami, and Tarim River basins. Therefore, we conclude that AP are dominating and accelerating groundwater depletion in the NWEB. The increase of GWSA in the Qaidam basin has been attributed to the increase in solid water melt and regional precipitation. The western route project of China's south-north water diversion and water-saving irrigation are important ways to solve the problem of groundwater depletion in NWEB. Our results emphasize that a more feasible framework capable of reliably identifying the driving factors of groundwater storage change is a necessary tool for promoting the sustainable management of groundwater resources under both NF and AP in arid endorheic basins.
英文关键词	GRACE Groundwater Anthropogenic perturbations Climate change Attribution analysis Northwest endorheic basin
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001037989100001
WOS关键词	INLAND RIVER-BASINS ; CLIMATE-CHANGE ; WATER-RESOURCES ; STORAGE TRENDS ; ARID REGION ; DYNAMICS ; IRRIGATION ; IMPACTS ; EVAPOTRANSPIRATION ; VULNERABILITY
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397292
推荐引用方式 GB/T 7714	Cheng, Wenju,Feng, Qi,Xi, Haiyang,et al. Spatiotemporal variability and controlling factors of groundwater depletion in endorheic basins of Northwest China[J],2023,344.
APA	Cheng, Wenju.,Feng, Qi.,Xi, Haiyang.,Yin, Xinwei.,Sindikubwabo, Celestin.,...&Zhao, Xinyue.(2023).Spatiotemporal variability and controlling factors of groundwater depletion in endorheic basins of Northwest China.JOURNAL OF ENVIRONMENTAL MANAGEMENT,344.
MLA	Cheng, Wenju,et al."Spatiotemporal variability and controlling factors of groundwater depletion in endorheic basins of Northwest China".JOURNAL OF ENVIRONMENTAL MANAGEMENT 344(2023).