Optimization of water-urban-agricultural-ecological land use pattern:A case study of Guanzhong Basin in the southern Loess Plateau of Shaanxi Province,ChinaOACSTPCD
Extensive land use will cause many environmental problems.It is an urgent task to improve land use efficiency and optimize land use patterns.In recent years,due to the flow decrease,the Guanzhong Basin in Shaanxi Province is confronted with the problem of insufficient water resources reserve.Based on the Coupled Ground-Water and Surface-Water Flow Model(GSFLOW),this paper evaluates the response of water resources in the basin to changes in land use patterns,optimizes the land use pattern,improves the ecological and economic benefits,and the efficiency of various spatial development,providing a reference for ecological protection and high-quality development of the Yellow River Basin.The research shows that the land use pattern in the Guanzhong Basin should be further optimized.Under the condition of considering ecological and economic development,the percentage change of the optimum area of farmland,forest,grassland,water area,and urban area compared with the current land use area ratio is+2.3,+2.4,-6.1,+0.2,and+1.6,respectively.The economic and ecological value of land increases by14.1%and 3.1%,respectively,and the number of water resources can increase by 2.5%.
Sai Wang;Bin Wu;Hai-xue Li;Min-min Zhao;Lei Yuan;Xi Wu;Tao Ma;Fu-cheng Li;Shuang-bao Han;
Center for Hydrogeology and Environmental Geology Survey,China Geological Survey,Ministry of Natural Resources,Tianjin 300304,China Center for Groundwater Exploration and Development Engineering Research,China Geological Survey,Ministry of Natural Resources,Tianjin 300304,ChinaCenter for Hydrogeology and Environmental Geology Survey,China Geological Survey,Ministry of Natural Resources,Tianjin 300304,ChinaCenter for Hydrogeology and Environmental Geology Survey,China Geological Survey,Ministry of Natural Resources,Tianjin 300304,China School of Environmental Studies,China University of Geosciences,Wuhan,430078,China State Environmental Protection Key Laboratory of Source Apportionment and Control of Aquatic Pollution,Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science,China University of Geosciences,Wuhan,430078,China
环境科学
Coupled Ground-Water and Surface-Water Flow Model(GSFLOW)Land use patternsWater resources optimizationEcological and economic benefitsCoupling modelHydrological environmental engineeringGuanzhong BasinSouthern Loess PlateauYellow River basin
《China Geology》 2024 (003)
P.480-493 / 14
jointly supported by the National Natural Science Foundation of China(41702280);the projects of the China Geology Survey(DD20221754 and DD20190333)。
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