干旱区生态环境知识资源中心(Arid): Semi-arid rather than arid regions of China deserve the priority in drought mitigation efforts

Arid

DOI	10.1016/j.jhydrol.2024.131791
	Semi-arid rather than arid regions of China deserve the priority in drought mitigation efforts
	Lan, Xin; Liu, Zhiyong; Ge, Yang; Yan, Yu; She, Zhenyan; Cheng, Linyin; Chen, Xiaohong
通讯作者	Liu, ZY
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2024
卷号	641
英文摘要	The integration of drought assessment, mitigation priority analysis and mitigation measures development is a forward-looking strategy to achieve water resources allocation, implement anti-drought techniques and formulate corresponding mitigation measures strategies. However, since most drought indices cannot be based on surface water-balance to estimate water demand for drought recovery, there is a gap between drought assessment and proactive drought mitigation. Here, we established the Standardized Water Availability Index (taking water yield as surface water deficit/surplus) to identify hydrological drought, and further use it to determine the water demand for hydrological drought mitigation. On that basis, a comprehensive framework, integrating with drought assessment-resilience-recovery and water scarcity stress, was proposed to investigate the hydrological drought mitigation priority for basins in different climate regions in China. The results show that non-humid river basins have greater water scarcity stress, lower resilience to hydrological drought, but less water demand for hydrological drought mitigation (3 mm 7 mm in mild drought, 5 mm 14 mm in moderate drought, 7 mm 21 mm in severe drought). In contrast, humid river basins have greater water demand for hydrological drought mitigation (15 mm 49 mm in mild drought, 27 mm 93 mm in moderate drought, 32 mm 119 mm in severe drought), but higher resilience to hydrological drought. The densely populated semi-arid river basins in China should be given priority attention in mitigating hydrological drought on account of their greatest water scarcity stress, lower drought resilience, and less water demand for drought mitigation. This work highlights the complexity of the hydrological drought mitigation, and our findings can help stakeholders to make precise drought mitigation measures and adapt drought-relative water management.
英文关键词	PT-JPL model Surface water balance Regional water deficit Water demand for drought recovery
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001297054500001
WOS关键词	CLIMATE-CHANGE ; WATER ; IDENTIFICATION ; EVAPOTRANSPIRATION ; PRECIPITATION ; RUNOFF ; FLOOD
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404607
推荐引用方式 GB/T 7714	Lan, Xin,Liu, Zhiyong,Ge, Yang,et al. Semi-arid rather than arid regions of China deserve the priority in drought mitigation efforts[J],2024,641.
APA	Lan, Xin.,Liu, Zhiyong.,Ge, Yang.,Yan, Yu.,She, Zhenyan.,...&Chen, Xiaohong.(2024).Semi-arid rather than arid regions of China deserve the priority in drought mitigation efforts.JOURNAL OF HYDROLOGY,641.
MLA	Lan, Xin,et al."Semi-arid rather than arid regions of China deserve the priority in drought mitigation efforts".JOURNAL OF HYDROLOGY 641(2024).