基于GIS和AHP的福建福安区域滑坡地质灾害危险性评价  

Risk Assessment of Regional Geological Landslide Hazards Based on GIS and AHP in Fu′an City

作　　者：祝清 谭衢霖[1,2] 周嘉琦 黄俊宝 胡俊[4] 周平根 ZHU Qing;TAN Qulin;ZHOU Jiaqi;HUANG Junbao;HU Jun;ZHOU Pinggen(School of Civil Engineering,Beijng Jiaotong University,Beijing 100044,China;Institute of Spatial Information for Line Engineering,Beijing Jiaotong University,Beijing 100044,China;Fujian Geological Environment Monitoring Center,Fuzhou 350001,China;School of Computer and Information Technology,Beijing Jiaotong University,Beijing 100044,China;China Institute of Geo-environment Monitoring,Ministry of Natural Resources,Beijing 100081,China)

机构地区：[1]北京交通大学土木建筑工程学院,北京100044 [2]北京交通大学线路工程空间信息研究所,北京100044 [3]福建省地质环境监测中心,福建福州350001 [4]北京交通大学计算机与信息技术学院,北京100044 [5]中国地质环境监测院(自然资源部地质灾害技术指导中心),北京100081

出　　处：《测绘与空间地理信息》2021年第5期25-30,共6页Geomatics & Spatial Information Technology

基　　金：国家重点研发计划(2018YFC1505505)资助。

摘　　要：以福建省宁德福安市为研究区,通过综合分析研究区地质灾害调查数据,选取了坡度、坡向、曲率、高程、降水、植被、道路、河流、地质、断裂带及人类工程活动等10个因子作为评价指标,构建区域滑坡地质灾害危险性评价层次结构模型,利用层次分析法(AHP)确定各因子权重,基于GIS地理空间分析评价了研究区地质灾害危险性,划分了5类区域:极高危险区、高危险区、中危险区、低危险区、较低危险区。危险性评价结果可为宁德市减灾防灾以及灾害治理提供依据,也为区域滑坡地质灾害危险性评价提供可行的方法参考。Taking Fuan city,Ningde city,Fujian province as the research area,through the comprehensive analysis of the geological disaster survey data,10 factors,e.g.,slope,slope direction,curvature,elevation,precipitation,vegetation,road,river,geology,fault zone,and human engineering activities,are selected as the evaluation indexes to construct the regional landslide geological disaster risk evaluation hierarchy model,and each factor weight is determined by AHP.Based on GIS geospatial analysis,the risk index of geological disasters in the study area was evaluated,and divided into five categories:extremely high risk area,high risk area,medium risk area,low risk area,and extremely low risk area.The results of risk assessment can provide a reference for disaster reduction and prevention as well as disaster management in Ningde city,and a practical way for regional landslide geological hazard risk assessment.

关 键 词：地质灾害 GIS 滑坡 层次分析法 危险性评价 

分 类 号：P208[天文地球—地图制图学与地理信息工程]