基于遥感和GIS的滑坡地质灾害风险评估探讨  

Discussion on Landslide Geological Hazard Risk Assessment Based on Remote Sensing and GIS

作　　者：张万里 ZHANG Wanli(Fujian Geologic Surveying and Mapping Institute,Fuzhou,Fujian Province,350010 China)

机构地区：[1]福建省地质测绘院,福建福州350010

出　　处：《科技资讯》2022年第23期90-93,共4页Science & Technology Information

摘　　要：随着经济的发展,人类在自然环境中的大量开发活动直接或间接地增加了地质灾害发生的可能性。每年都有大量地质灾害对人类生命财产安全构成严重威胁,有效治理地质灾害已成为我国面临的主要困难之一。该文主要研究基于遥感和GIS的滑坡地质灾害风险评估。结合某地区地质灾害详细调查项目,对研究区滑坡地质灾害分布及发展特征进行评价分析。该文应用层次分析法(AHP)对滑坡危险性进行了评价,并计算了各因素的权重,利用GIS方法获取研究区滑坡风险评估网格图,将研究区大致划分为零风险、低风险、中风险、高风险这4个级别。结果表明,高风险区和中风险区面积占总面积的54.0%。With the development of economy,a large number of human exploitation activities in the natural envi‐ronment directly or indirectly increase the possibility of geological disasters.A large number of geological disasters pose a serious threat to the safety of human life and property every year.The effective control of geological disasters has become one of the major difficulties faced by China.This paper mainly studies landslide geological hazard risk assessment based on remote sensing and GIS.The distribution and development characteristics of landslide geological hazards in the study area are evaluated and analyzed in combination with the detailed investigation project of geo‐logical hazards in a certain area.In this paper,the Analytic Hierarchy Process(AHP)is used to evaluate the landslide risk,and the weight of each factor is calculated.The GIS method is used to obtain the grid map of landslide risk as‐sessment in the study area,and the study area is roughly divided into four levels:zero risk,low risk,medium risk,and high risk.The results showed that the area of high risk area and medium risk area accounted for 54.0%of the total area.

关 键 词：滑坡地质灾害 层次分析法 遥感 地理信息系统 风险评估 

分 类 号：P642.22[天文地球—工程地质学]