摘要
以凯里市鱼洞河流域为研究对象,选取高程、降雨、地质岩组、坡向、地质构造、矿山采空区、河谷水文、坡度8个致灾因子,经专家确定各致灾因子之间重要程度,再利用层次分析法(AHP)计算得到各因子的权重,最后采用GIS的空间分析功能进行叠加分析。将研究区划分为高危险区、中危险区和低危险区三个区,为鱼洞河流域开发建设、防灾减灾和环境治理决策提供一定技术参考。
Taking the Yudong River Basin in Kaili City as the research object,eight hazard factors including elevation,rainfall,geological rock formation,slope aspect,geological structure,mine goaf,valley hydrology and slope were selected.The importance of the factors is calculated,and then the weight of each factor is calculated by using the Analytic Hierarchy Process(AHP),and finally the spatial analysis function of GIS is used for superposition analysis.The study area is divided into three areas:high-risk area,medium-risk area and low-risk area,to provide certain technical reference for the development and construction of the Yudong River Basin,disaster prevention and mitigation,and environmental governance decisions.
作者
杨政杰
YANG Zheng-jie(Qiandongnan Prefecture Geological Hazard Prevention Technology Service Center,Kaili 556000,China)
出处
《价值工程》
2022年第10期132-134,共3页
Value Engineering
基金
黔东南州2019年度州级科技计划(黔东南科合[2019]138号)。
关键词
鱼洞河
层次分析法
GIS
地质灾害
易发性评价
Yudong River
Analytic Hierarchy Process
GIS
geological hazard
susceptibility assessment
