干旱区生态环境知识资源中心(Arid): Groundwater Depletion Rate Over China During 1965-2016: The Long-Term Trend and Inter-annual Variation

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DOI	10.1029/2022JD038109
	Groundwater Depletion Rate Over China During 1965-2016: The Long-Term Trend and Inter-annual Variation
	Huang, Zhongwei; Yuan, Xing; Sun, Siao; Leng, Guoyong; Tang, Qiuhong
通讯作者	Yuan, X
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2023
卷号	128 期号:11
英文摘要	Many countries have experienced the increase of groundwater depletion rate (GWDR), posing great challenges to the environment and society. Given the slow variation of groundwater, long-term estimation of GWDR at high-resolution is critical for sustainable managements of regional water resources and risks of hydrological extremes in a changing climate. However, limited in-situ and satellite observations and uncertainties from hydrological model simulations prohibit reliable estimation of the long-term trend and inter-annual variation of GWDR. Using survey-based water withdrawal and water availability datasets, this study provided a spatially distributed estimation of annual GWDR over China at the 0.25 degrees x 0.25 degrees grid scale for the period 1965-2016 using a flux-based approach. The estimated GWDR has higher spatial resolution and longer temporal coverage than previous products. With the newly compiled data, we found that groundwater over China was depleted at an average rate of 20.4 km(3) year(-1) during 1965-2016, especially in the arid and semi-arid areas of northern China. The GWDR showed a significant increasing trend during 1965-2016, but such trend slowed down from 0.66 km(3) year(-1) during 1965-2001 to 0.06 km(3) year(-1) during 2001-2016, which was mainly attributed to the deceleration in human water withdrawal. Further analysis showed that over 40% of the inter-annual variability of GWDR could be explained by precipitation variability, and the climate control increased over time. This study suggested a growing control of climate variations on GWDR over China as the human water withdrawal has been decelerating, and a need for climate change adaptation for a sustainable groundwater management.
英文关键词	groundwater depletion human water withdrawal water availability climate variation China
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000999920500001
WOS关键词	SURFACE-WATER ; RIVER-BASIN ; HYDROLOGICAL SIMULATION ; NORTHWEST CHINA ; GRACE DATA ; LAND ; SUSTAINABILITY ; DATASET ; IMPACTS ; ABSTRACTIONS
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397353
推荐引用方式 GB/T 7714	Huang, Zhongwei,Yuan, Xing,Sun, Siao,et al. Groundwater Depletion Rate Over China During 1965-2016: The Long-Term Trend and Inter-annual Variation[J],2023,128(11).
APA	Huang, Zhongwei,Yuan, Xing,Sun, Siao,Leng, Guoyong,&Tang, Qiuhong.(2023).Groundwater Depletion Rate Over China During 1965-2016: The Long-Term Trend and Inter-annual Variation.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,128(11).
MLA	Huang, Zhongwei,et al."Groundwater Depletion Rate Over China During 1965-2016: The Long-Term Trend and Inter-annual Variation".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 128.11(2023).