中国防汛抗旱2024，Vol.34Issue(12)：61-67,7.DOI:10.16867/j.issn.1673-9264.2024137
江西省洪涝灾害风险评估县域尺度等级划分研究
Assessment and classification of flood disaster risk in Jiangxi Province at the county scale
摘要
Abstract
Risk assessment and classification of flood disasters are important contents of flood assessment and management.Reasonable flood disaster risk assessment can provide scientific basis for early warning and disaster prevention and reduction of flood disasters.This paper comprehensively considered the risk factors of flood disasters,the sensitivity of disaster prone environment,the exposure of disaster bearing bodies,and the ability of flood control,and other factors.A total of 13 assessment indexes were selected to build a flood disaster risk assessment indicators,establishing an indicators for flood disaster risk assessment.Using AHP and empirical coefficient method to give weight to each index,using weighted synthesis method to construct comprehensive evaluation indicators,this study classified flood disaster risk in Jiangxi Province by means of spatial analysis technology.The result showed that the high risk areas of flood disasters in Jiangxi Province were mainly concentrated in the northeast of Jiangxi,most of Ganzhou City,Jiujiang City,Yichun City,and some parts of Fuzhou City.Due to the dense river network in the above areas,flash floods were prone to occur in case of heavy rainfall,which was very prone to cause flood disasters.Low risk areas were mainly concentrated in most central urban areas of Jiangxi Province.Due to the strong disaster prevention ability in this region,there were not many small and medium-sized rivers and reservoirs,and there were few flash flood dangerous points,so it was not prone to have flood disasters.The above results,compared with historical flood disaster data,indicate that the distribution of flood risk in Jiangxi Province is basically consistent with the distribution of flood disaster losses.关键词
县域尺度/洪涝灾害/风险评估/等级划分/江西省Key words
county scale/flood disaster/risk assessment/classification/Jiangxi Province分类
资源环境引用本文复制引用
黄萍,郑宇,许小华,李德龙,刘珮勋,张秀平..江西省洪涝灾害风险评估县域尺度等级划分研究[J].中国防汛抗旱,2024,34(12):61-67,7.基金项目
江西省科技厅重点研发计划项目(20243BBH81006、20212BBG71008) （20243BBH81006、20212BBG71008）
江西省技术创新引导类计划项目-国家科技奖后备项目培育计划(20223AEI91008) （20223AEI91008）
江西省水利厅科技项目(202426ZDKT16、202426ZDKT10、202425TGKT11). （202426ZDKT16、202426ZDKT10、202425TGKT11）
