Spatial-temporal variations in blue and green water resources, water footprints and water scarcities in a large river basin: A case for the Yellow River basin

doi:10.1016/j.jhydrol.2020.125222

	Spatial-temporal variations in blue and green water resources, water footprints and water scarcities in a large river basin: A case for the Yellow River basin
	Xie, Pengxuan 1,3; Zhuo, La 2,3,4; Yang, Xi 1,3; Huang, Hongrong 1,3; Gao, Xuerui 2,3,4; Wu, Pute 2,4
刊名	JOURNAL OF HYDROLOGY
	2020-11-01
卷号	590 页码:12
关键词	Blue water Green water Water resources Water footprints Water scarcities Spatial-temporal variations
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2020.125222
通讯作者	Zhuo, La(zhuola@nwafu.edu.cn)
英文摘要	Blue water (surface and ground water) and green water (water stored in unsaturated soil layer and canopy evapotranspiration from rainfall) are the two sources of water generated from precipitation and communicating vessels that define the limits of water resources (WRs) for both human activities and ecosystems. However, the blue and green evapotranspiration in irrigated fields and their contribution to blue and green water flows have not been identified in studies conducted on blue and green WRs. In addition, information on intra-annual variations in green water footprints (WFs) and water scarcities is limited. In particular, there is a lack of information on water consumption obtained from hydrological model-based blue and green water assessments at the basin scales. This study quantified, taking the Yellow River Basin (YRB) over 2010-2018 as the study case, the inter- and intra-annual variations in blue and green WRs, WFs and water scarcities at sub-basin levels. WRs and WFs were simulated using the Soil and Water Assessment Tool (SWAT) model. The results revealed that the annual average blue and green WRs of the YRB were 119.33 x 10(9) m s yr(-1) and 296.94 x 10(9) m s yr(-1), respectively, over the study period. The blue and green WFs of the crops in the middle reach were significantly larger than those of the crops in the upper and lower reaches. There were visible spatial heterogeneities in water scarcities across the basin. Several areas in the middle reaches were subject to both blue and green water scarcities (at least modest level) for a minimum of three months a year. Furthermore, the norther region of the YRB was subject to significant and severe blue water scarcity for the whole year.
资助项目	National Natural Science Foundation of China[51809215] ; West Light Talent Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China[2018YFF0215702]
WOS关键词	MODEL ; VARIABILITY ; CONSUMPTION ; SECURITY ; CLIMATE ; AVAILABILITY ; CROPS ; FLOWS
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000599754500024
资助机构	National Natural Science Foundation of China ; West Light Talent Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/137481]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhuo, La
作者单位	1.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Inst Water Saving Agr Arid Reg China, Yangling 712100, Shaanxi, Peoples R China 4.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Xie, Pengxuan,Zhuo, La,Yang, Xi,et al. Spatial-temporal variations in blue and green water resources, water footprints and water scarcities in a large river basin: A case for the Yellow River basin[J]. JOURNAL OF HYDROLOGY,2020,590:12.
APA	Xie, Pengxuan,Zhuo, La,Yang, Xi,Huang, Hongrong,Gao, Xuerui,&Wu, Pute.(2020).Spatial-temporal variations in blue and green water resources, water footprints and water scarcities in a large river basin: A case for the Yellow River basin.JOURNAL OF HYDROLOGY,590,12.
MLA	Xie, Pengxuan,et al."Spatial-temporal variations in blue and green water resources, water footprints and water scarcities in a large river basin: A case for the Yellow River basin".JOURNAL OF HYDROLOGY 590(2020):12.