基于GIS的扬州水资源分布与承载力研究  

Research on Water Resources Distribution and Carrying Capacity in Yangzhou Base on GIS

作　　者：沈沛 许龙祥 Shen Pei;Xu Longxiang(Zhenzhou Water Conservancy Station,Yizheng City,Jiangsu Province,Yizheng 211400,Jiangsu;Zaolinwan Water Conservancy Station,Yizheng City,Jiangsu Province,Yizheng 211400,Jiangsu)

机构地区：[1]江苏省仪征市真州水利站,江苏仪征211400 [2]江苏省仪征市枣林湾水利站,江苏仪征211400

出　　处：《陕西水利》2024年第3期23-26,共4页Shaanxi Water Resources

摘　　要：为综合评价经济快速发展区水资源情势,以扬州市为例,应用近5年来GPM卫星降水数据经降尺度后得到区域详细降水资源分布图;另基于开源数据集搜集并确立水资源承载力指标因子,结合熵权法和GIS技术开展水资源承载力空间评价。结果表明,近5年来扬州市降水量介于791 mm~914 mm,呈现自动向西减少格局,总体降水资源丰度较高;区域水资源承载力平均值为0.54,反映了该地水资源供需紧张态势;另外水资源承载力呈斑块状异质性分布,与区域土地利用、人口密度分布一致。In order to comprehensively evaluate the water resources situation in areas with rapid economic development,taking Yangzhou City as an example,the GPM satellite precipitation data in the past five years was used to obtain a regional detailed precipitation water distribution map after downscaling.In addition,water resource carrying capacity indicators were collected and established based on open source data sets.factors,combined with the entropy weight method and GIS technology to carry out spatial evaluation of water resources carrying capacity.The results show that the precipitation in Yangzhou City in the past five years has ranged from 791 mm to 914 mm,showing an automatic decreasing pattern toward the west,and the overall abundance of precipitation resources is high;the average regional water resources carrying capacity is 0.54,reflecting the tight supply and demand situation of water resources in the area.;In addition,water resources carrying capacity is distributed in a patchy and heterogeneous manner,which is consistent with regional land use and population density distribution.

关 键 词：水资源 降水量 水资源承载力 GIS 

分 类 号：TV211.1[水利工程—水文学及水资源]