摘要
基于洪水灾害基本理论,结合哈尔滨市洪水灾害特点,从洪水灾害的危险性和易损性角度,选取降水、地形、水系、人口密度、地均GDP、农林牧渔业生产总值和耕地面积比7个评价指标,构建哈尔滨市洪灾风险评价模型;采用层次分析法,确定各个评价指标的权重分配;基于ARCGIS的地图代数功能以及空间叠加功能,对区域进行洪灾风险综合评价。结果表明,南岗区整个区域以及延寿县及其周边部分区域处于高风险区;同时,以南岗区以及延寿县为中心区域,洪灾风险性从这两个地区向四周风险性逐渐降低;阿城市、依兰县以及松北西部部分地区为洪灾低风险区。
This study is based on the basic theory of flood disasters and combined with the characteristics of flood disasters in Harbin.From the perspective of the danger and vulnerability of flood disasters,seven evaluation indicators are selected:precipitation,terrain,water system,population density,average GDP,gross domestic product of agriculture,forestry,animal husbandry,and fishery,and the ratio of cultivated land area to construct a flood risk assessment model in Harbin.The weight distribution of each evaluation indicator is determined using the analytic hierarchy process,based on the map algebra function and spatial overlay function of ARCGIS,a comprehensive evaluation of flood risk in the region is carried out.The results indicate that the entire area of Nangang district,as well as parts of Yanshou county and its surrounding areas,are in high-risk areas;at the same time,with Nangang district and Yanshou county as the central areas,the risk of flood disasters gradually decreases from these two areas to the surrounding areas;Acheng city,Yilan county,and some areas in the western part of Songbei are low-risk areas for flood disasters.
作者
孔心雨
孙颖娜
KONG Xin-yu;SUN Ying-na(Heilongjiang University,School of Hydraulic and Electric-Power,Harbin 150080,China;Heilongjiang University,China and Russian Cold Region Hydrology and Water Conservancy Engineering Joint Laboratory,Harbin 150080,China)
出处
《水利科技与经济》
2024年第5期95-100,共6页
Water Conservancy Science and Technology and Economy
基金
国家自然科学基金面上项目(41202171)
国家社会科学基金项目(20BSS042)
黑龙江省高校基本科研业务费科技创新项目(2018-KYYWF-1570)。
