干旱区生态环境知识资源中心(Arid): Global assessment of future sectoral water scarcity under adaptive inner-basin water allocation measures

Arid

DOI	10.1016/j.scitotenv.2021.146973
	Global assessment of future sectoral water scarcity under adaptive inner-basin water allocation measures
	Huang, Zhongwei; Liu, Xingcai; Sun, Siao; Tang, Yin; Yuan, Xing; Tang, Qiuhong
通讯作者	Tang, QH (corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	783
英文摘要	Water scarcity has become a major threat to sustainable development under climate change. To reduce the population exposure to water scarcity and improve universal access to safe drinking water are important targets of the Sustainable Development Goal (SDG) 6 in the near future. This study aims to examine the potential of applying adaptive inner-basin water allocation measures (AIWAM), which were not explicitly considered in previous studies, for mitigating water scarcity in the future period (2020-2050). By incorporating AIWAM in water scarcity assessment, nonagricultural water uses are assumed to have high priority over agricultural water use and thus would receive more water supply. Results show that global water deficit is projected to be similar to 3241.9 km(3)/ yr in 2050, and severe water scarcity is mainly found in arid and semi-arid regions, e.g. Western US, Northern China, and the Middle East. Future warming climate and socioeconomic development tend to aggravate global water scarcity, particularly in Northern Africa, Central Asia, and the Middle East. The application of AIWAM could significantly mitigate water scarcity for nonagricultural sectors by leading to a decrease of global population subject to water scarcity by 12% in 2050 when compared to that without AIWAM. However, this is at the cost of reducing water availability for agricultural sector in the upstream areas, resulting in an increase of global irrigated cropland exposed to water scarcity by 6%. Nevertheless, AIWAM provides a useful scenario that helps design strategies for reducing future population exposure to water scarcity, particularly in densely populated basins and regions. Our findings highlight increasing water use competition across sectors between upstream and downstream areas, and the results provide useful information to develop adaptation strategies towards sustainable water management. (C) 2021 Elsevier B.V. All rights reserved.
英文关键词	Water scarcity Water deficit Adaptive measures Water allocation Water demand
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000656998400004
WOS关键词	CLIMATE-CHANGE ; INTEGRATED ASSESSMENT ; HYDROLOGICAL SIMULATION ; SURFACE-WATER ; LAND-USE ; MODEL ; AVAILABILITY ; RESOURCES ; STRESS ; CHINA
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院地理科学与资源研究所 ; 南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351678
作者单位	[Huang, Zhongwei; Yuan, Xing] Nanjing Univ Informat Sci & Technol, Sch Hydrol & Water Resources, Nanjing, Peoples R China; [Huang, Zhongwei; Liu, Xingcai; Sun, Siao; Tang, Yin; Tang, Qiuhong] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; [Tang, Qiuhong] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Huang, Zhongwei,Liu, Xingcai,Sun, Siao,et al. Global assessment of future sectoral water scarcity under adaptive inner-basin water allocation measures[J]. 中国科学院地理科学与资源研究所, 南京信息工程大学,2021,783.
APA	Huang, Zhongwei,Liu, Xingcai,Sun, Siao,Tang, Yin,Yuan, Xing,&Tang, Qiuhong.(2021).Global assessment of future sectoral water scarcity under adaptive inner-basin water allocation measures.SCIENCE OF THE TOTAL ENVIRONMENT,783.
MLA	Huang, Zhongwei,et al."Global assessment of future sectoral water scarcity under adaptive inner-basin water allocation measures".SCIENCE OF THE TOTAL ENVIRONMENT 783(2021).