干旱区生态环境知识资源中心(Arid): Spatio-temporal dynamics of water storage across Northwest China over the past four decades

Arid

DOI	10.1016/j.ejrh.2023.101488
	Spatio-temporal dynamics of water storage across Northwest China over the past four decades
	Cheng, Wenju; Feng, Qi; Xi, Haiyang; Sindikubwabo, Celestin; Chen, Yuqing; Zhao, Xinyue
通讯作者	Feng, Q
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2023
卷号	49
英文摘要	Study region: The Northwest inland basins of China (NWC).Study focus: Terrestrial water resources, especially groundwater resources, are the main source of water for human activities and for maintaining the stability of the ecological environment in NWC. Excessive consumption of water resources will seriously affect the sustainable utilization of water resources and ecological security in this region. Therefore, it is urgent to clarify the long-term changes in water storage in this area in order to handle the pressure of future water re-sources and the natural environment. Using GRACE satellite datasets and global hydrological models (GHMs) products, this study analyzed spatiotemporal variations in terrestrial water storage anomalies (TWSA), groundwater storage anomalies (GWSA), soil moisture, snow water equivalent, and canopy interception combined anomalies (SSCA) in NWC through the application of the water balance, trend decomposition, and empirical orthogonal decomposition methods. Furthermore, the driving factors of water storage change and feasible water resource manage-ment strategies were discussed. New hydrological insights for the region: TWSA in the NWC has experienced a continuous decline over the past nearly 40 years, while SSCA has shown a weak increasing trend (0.03 cm yr-1). Since the availability of glacial retreat data (2003-2016), glacial water storage in the NWC has decreased by 0.09 cm per year, while TWSA, SSCA, and GWSA have changed at rates of -0.25, 0.02, and -0.18 cm yr-1, respectively. The North Tianshan Rivers Basin has become one of the areas with the most severe groundwater depletion in China. 2005-2010 was a turning period in the changes of TWSA, followed by widespread water loss across the NWC. Glacier and snow melt are the most important factors for the decline of TWSA in the Tianshan mountains area, and over -exploitation of groundwater by human activities is a secondary factor. For other regions, Groundwater losses remain the most significant contributor to TWSA losses. The massive loss of water storage in the Tianshan Mountains area, especially the accelerated retreat of glaciers, will affect the stable water supply to the middle and lower reaches of the oasis region, perhaps leading to increased groundwater extraction, which will threaten regional water security and sustainable development. Developing a water-saving society and implementing inter-basin water transfer arefeasible ways to alleviate the water resource crisis. Conducting a comprehensive analysis of all inland rivers in China helps to facilitate horizontal comparisons between various basins, thereby providing more comprehensive insights of water storage fluctuations. The data on water storage changes, extending back to 1980, provide a longer-term perspective on water resource changes in the region, which can contribute to enhancing water resource security and ecological environ-mental protection.
英文关键词	GRACE satellite dataset Terrestrial water storage Groundwater storage Spatial and temporal change Northwest China
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:001148092100001
WOS关键词	GROUNDWATER STORAGE ; CLIMATE-CHANGE ; GLOBAL ANALYSIS ; GRACE ; RESOURCES ; BASIN ; DEPLETION ; UNCERTAINTY ; PLATEAU ; MODELS
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/2XILL650/397449
推荐引用方式 GB/T 7714	Cheng, Wenju,Feng, Qi,Xi, Haiyang,et al. Spatio-temporal dynamics of water storage across Northwest China over the past four decades[J],2023,49.
APA	Cheng, Wenju,Feng, Qi,Xi, Haiyang,Sindikubwabo, Celestin,Chen, Yuqing,&Zhao, Xinyue.(2023).Spatio-temporal dynamics of water storage across Northwest China over the past four decades.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,49.
MLA	Cheng, Wenju,et al."Spatio-temporal dynamics of water storage across Northwest China over the past four decades".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 49(2023).