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[1]YUE Siyu,LI Huaien,ZHAO Li.Impact of Climate and Land Use Changes on Water Scarcity in the Wei River Basin[J].Research of Soil and Water Conservation,2021,28(05):95-101.

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Impact of Climate and Land Use Changes on Water Scarcity in the Wei River Basin

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 05 Page number: 95-101 Column: Public date: 2021-08-20

Title:: Impact of Climate and Land Use Changes on Water Scarcity in the Wei River Basin

Author(s):: YUE Siyu¹,LI Huaien²,ZHAO Li³; (1.College of Chemical and Environmental Science,Shaanxi University of Technology,Hanzhong,Shaanxi 723001,China; 2.State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China,Xi'an University of Technology,Xi'an 710048,China; 3.Law Enforcement Detachment of Hanzhong Ecological and Environmental Protection,Hanzhong,Shaanxi 723001,China)

Keywords:: hydrology; water scarcity; InVEST model; river ecological base flow

CLC:: P333

DOI:: -

Abstract:: In order to explore temporal-spatial variation of water scarcity and its influence factors,and reveal water scarcity areas in the Wei River Basin,we introduced assessment method of water scarcity that incorporates river ecological base flow. We adopted the water yield module of the Integrated Valuation of Ecosystem Service and Tradeoffs Model to obtain water yield of the Wei River Basin on sub-basin scale. Then we used scenario analysis to evaluate water scarcity on sub-basin scale by combining water consumption and river ecological base flow. Finally,we applied spatial autocorrelation analysis to study impact of climate and land use changes on water scarcity in the Wei River Basin. The results indicated that water scarcity areas of the Wei River Basin mainly distributed in the mainstream of the Wei River and the Northern Jing River Basin. Dry year was crucial period for river ecological base flow protection,and there existed significant spatial agglomeration between water scarcity index and climate change represented by precipitation. These results are of significance for water resources management and river ecological base flow protection in the Wei River Basin.

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Last Update: 2021-08-20