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Monthly blue water footprint caps in a river basin to achieve sustainable water consumption: The role of reservoirs
Zhuo, La1,4,5; Hoekstra, Arjen Y.2,3; Wu, Pute1,4,5; Zhao, Xining1,4,5
2019-02-10
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume650Pages:891-899
Corresponding AuthorZhuo, La(zhuola@nwafu.edu.cn) ; Wu, Pute(gjzwpt@vip.sina.com)
AbstractThe bluewater footprint (WF) measures the consumption of runoff in a river basin. In order to ensure sustainable water consumption, setting a monthly blue WF cap, that is an upper-limit to the blue WF in a river basin each month, can be a suitable policy instrument. The blue WF cap in a river basin depends on the precipitation that becomes runoff and the need to maintain a minimum flow for sustaining ecosystems and livelihoods. Reservoirs along the river generally smooth runoff variability and thus raise the WF cap and reduce blue water scarcity during the dry season. Previous water scarcity studies, considering the ratio of actual blue WF to the blue WF cap under natural background conditions, have not studied this effect of reservoir storages. Here we assess how water reservoirs influence blue WF caps over time and how they affect the variability of blue water scarcity in a river basin. We take the Yellow River Basin over the period January 2002-July 2006 as case study and consider data on observed storage changes in five large reservoirs along the main stream. Results indicate that reservoirs redistribute the blue WF cap and blue water scarcity levels over time. Monthly blue WF caps were generally lowered by reservoir storage during the flood season (July-October) and raised by reservoir releases over the period of highest crop demand (March-June). However, with water storage exceeding 20% of natural runoff inmost rainy months, reservoirs contribute to "scarcity in the wet months", which is to be understood as a situation in which environmental flow requirements related to the occurrence of natural peak flows are no longer met. (C) 2018 Elsevier B.V. All rights reserved.
KeywordSustainable blue water footprint Reservoir storage Blue water scarcity Environmental flow requirement
DOI10.1016/j.scitotenv.2018.09.090
WOS KeywordENVIRONMENTAL FLOW REQUIREMENTS ; SCARCITY ; RESOURCES ; CHINA ; IRRIGATION ; SYSTEMS ; STORAGE ; AFRICA ; CROPS ; WORLD
Indexed BySCI
Language英语
Funding ProjectChinese Academy of Sciences[XAB2017B03] ; Northwest A F University[2452017010] ; Fundamental Research Funds for the Central Universities[2452017181] ; Department of Human Resources and Social Security of Shaanxi Province[2017034]
Funding OrganizationChinese Academy of Sciences ; Northwest A F University ; Fundamental Research Funds for the Central Universities ; Department of Human Resources and Social Security of Shaanxi Province
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000447092700092
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52796
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhuo, La; Wu, Pute
Affiliation1.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
2.Univ Twente, Twente Water Ctr, POB 217, NL-7500 AE Enschede, Netherlands
3.Natl Univ Singapore, Inst Water Policy, Lee Kuan Yew Sch Publ Policy, Singapore 259770, Singapore
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
5.Natl Engn Res Ctr Water Saving Irrigat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Zhuo, La,Hoekstra, Arjen Y.,Wu, Pute,et al. Monthly blue water footprint caps in a river basin to achieve sustainable water consumption: The role of reservoirs[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,650:891-899.
APA Zhuo, La,Hoekstra, Arjen Y.,Wu, Pute,&Zhao, Xining.(2019).Monthly blue water footprint caps in a river basin to achieve sustainable water consumption: The role of reservoirs.SCIENCE OF THE TOTAL ENVIRONMENT,650,891-899.
MLA Zhuo, La,et al."Monthly blue water footprint caps in a river basin to achieve sustainable water consumption: The role of reservoirs".SCIENCE OF THE TOTAL ENVIRONMENT 650(2019):891-899.
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