基于双重层次分析法的地质灾害易发性评价——以辽宁省为例  

Susceptibility evaluation of geological disasters based on dual-level AHP:A case study of Liaoning Province

作　　者：王烜 李英 赵利军 张呈彬 王鹏 胡舫瑞 杨欢 张旭东 卢君实 王然 Wang Xuan;Li Ying;Zhao Lijun;Zhang Chengbin;Wang Peng;Hu Fangrui;Yang Huan;Zhang Xudong;Lu Junshi;Wang Ran(Liaoning Provincial Institute of Geological Exploration,Dalian 116100,China;Liaoning High-resolution Observation System Application and Service Center of Geological Resources and Environmental,Dalian 116100,China;Geological Environmental Monitoring Center of Liaoning Province,Shenyang 110032,China)

机构地区：[1]辽宁省地质勘查院有限责任公司,辽宁大连116100 [2]高分辨率对地观测系统辽宁地质资源环境应用与服务中心,辽宁大连116100 [3]辽宁省自然资源事务服务中心,辽宁沈阳110032

出　　处：《资源环境与工程》2025年第2期215-223,233,共10页Resources Environment & Engineering

基　　金：辽宁省自然资源厅“辽宁省地质灾害风险调查——风险调查工作成果信息化数据集成”项目(JH21-210000-87489)。

摘　　要：为了解决以往基于层次分析法开展的地质灾害易发性评价工作中,不同地质灾害使用相同评价因子权重的问题,提出双重层次分析方法,先将不同灾种进行单独层次分析评价,再根据灾种在研究区内的易发性程度,将评价结果统一,形成综合易发性分区。以辽宁省为例,选用岩性、断裂、高程、坡度、坡向、水系和公路等7个评价因子,对全省滑坡、崩塌、泥石流、地面塌陷、地裂缝等灾种进行易发性评价。结果显示,辽宁省地质灾害极高、高、中、低、非易发区的面积分别占省域面积的13.45%、23.15%、21.13%、16.37%、25.90%,其中极高和高易发区主要分布于辽东山地丘陵区、辽东半岛低山丘陵区和辽西低山丘陵区。采用密度比等参数检验评价结果,认为评价结果较为理想。建议进一步加强辽宁省地质灾害极高和高易发区的系统性调查和监测。In order to solve the problem of using the same evaluation factor weight in different geological disasters in the traditional geological disaster susceptibility evaluation based on analytic hierarchy process(AHP),a dual-level AHP is proposed to analyze and evaluate different disasters separately.According to the degree of susceptibility of disasters in the study area,the evaluation results were unified to form susceptibility zoning.Taking Liaoning Province as the study area,seven evaluation factors such as lithology,fracture,elevation,slope,aspect,water system and highway are selected to evaluate the susceptibility of landslides,collapses,debris flows,ground collapses and ground fissures in this province.The results show that the areas of extremely-high,high,medium,low and non susceptibility zone of geological disasters in Liaoning Province account for 13.45%,23.15%,21.13%,16.37%and 25.90%of the provincial area,respectively.The extremely-high and high susceptibility zone are mainly distributed in the mountainous and hilly areas of estern Liaoning,the low mountainous and hilly areas of Liaodong Peninsula and the low mountainous and hilly areas of western Liaoning.The evaluation results were tested by parameters such as density ratio,and the results were considered to be ideal.It is suggested to further strengthen the investigation,monitoring and prevention of geological disasters in extremely high and high susceptibility zone of Liaoning Province.

关 键 词：地质灾害 易发性评价 双重层次分析法 辽宁省 

分 类 号：P694[天文地球—地质学]