Unraveling the effect of inter-basin water transfer on reducing water scarcity and its inequality in China

doi:10.1016/j.watres.2021.116931

	Unraveling the effect of inter-basin water transfer on reducing water scarcity and its inequality in China
	Sun, Siao 2,5; Zhou, Xian 3; Liu, Haixing 3; Jiang, Yunzhong 1; Zhou, Huicheng 3; Zhang, Chi 3; Fu, Guangtao 4
刊名	WATER RESEARCH
	2021-04-15
卷号	194 页码:10
关键词	Inter-basin effect national assessment water transfer water scarcity water security
ISSN号	0043-1354
DOI	10.1016/j.watres.2021.116931
通讯作者	Liu, Haixing(hliu@dlut.edu.cn) ; Fu, Guangtao(G.Fu@exeter.ac.uk)
英文摘要	Securing water supply in the face of increasing water scarcity is one important challenge faced by humanity in sustainable development. Inter-basin water transfer is widely applied to provide water supply security in regions where water demand exceeds water availability. However, the effect of inter-basin water transfer on alleviating water scarcity and its inequality is poorly understood especially at the national scale. Based on a newly compiled database of inter-basin water transfer projects in China, here we report a first national assessment of their effect on securing water supply in different basins. We developed a number of indices to facilitate quantifying the effect of water transfer on water scarcity and its inequality. The capacity of inter-basin transfer projects has been steadily increased, which achieved similar to 48.5 billion m(3) yr(-1) by 2016 (equivalent to similar to 8% of the national water use). The results indicate that water transfer has impacted water supply of 43 sub-basins out of a total of 76 sub-basins, but it hardly changes a basin's water scarcity level (e.g., from water scarcity to low water scarcity). Approximately three quarters of people in China are affected by water transfer. More than a half of the national population (705 million) benefit from alleviated water scarcity, leading to the inequality coefficient reduced from 0.64 under natural water availability condition to 0.59 considering water transfer in 2016. However, 357 million people in water transfer source basins are subject to increased water scarcity, in which similar to 21% are from water stressed sub-basins. This study reveals for the first time water transfer induced water scarcity and inequality change across sub-basins in China, and highlights the challenges to secure water supply across basins. (C) 2021 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41730645] ; National Natural Science Foundation of China[91747102] ; National Natural Science Foundation of China[U1765102] ; National Natural Science Foundation of China[42071272] ; National Natural Science Foundation of China[52079016] ; UK Royal Society[IF160108] ; UK Royal Society[IEC\NSFC\170249] ; Liaoning Natural Science Foundation[2019-MS-043]
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000632497400004
资助机构	National Natural Science Foundation of China ; UK Royal Society ; Liaoning Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/161894]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Haixing; Fu, Guangtao
作者单位	1.China Inst Water Resources & Hydropower Res, Dept Water Resources, Beijing 100038, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Reg Sustainable Dev Modeling, Beijing 100101, Peoples R China 3.Dalian Univ Technol, Sch Hydraul Engn, Dalian 116024, Liaoning, Peoples R China 4.Univ Exeter, Ctr Water Syst, Exeter EX4 4QF, Devon, England 5.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Sun, Siao,Zhou, Xian,Liu, Haixing,et al. Unraveling the effect of inter-basin water transfer on reducing water scarcity and its inequality in China[J]. WATER RESEARCH,2021,194:10.
APA	Sun, Siao.,Zhou, Xian.,Liu, Haixing.,Jiang, Yunzhong.,Zhou, Huicheng.,...&Fu, Guangtao.(2021).Unraveling the effect of inter-basin water transfer on reducing water scarcity and its inequality in China.WATER RESEARCH,194,10.
MLA	Sun, Siao,et al."Unraveling the effect of inter-basin water transfer on reducing water scarcity and its inequality in China".WATER RESEARCH 194(2021):10.