信息量模型在区域地质灾害危险性评价中的应用  

The Application of Information Value Model in Regional Geological Hazard Risk Assessment

作　　者：常亚婷 刘征宇 向刚[1] 付明宏 CHANG Ya-ting;LIU Zheng-yu;XIANG Gang;FU Ming-hong(104 Geological Party,Guizhou Bureau of Geology&Mineral Explorationand Development,Duyun 558000,Guizhou,China)

机构地区：[1]贵州省地质矿产勘查开发局一○四地质大队,贵州都匀558000

出　　处：《贵州地质》2021年第4期430-436,共7页Guizhou Geology

摘　　要：为了能够在地质灾害发生前对其进行预测,从而有预见性地采取相应的防治措施,以减少人员财产损失。以福泉市为例,采用ArcGis软件结合信息量模型的方法对通过分析地质灾害影响因素进行地质灾害危险性评价,利用地形条件、地层岩性、地质构造、气象水文以及人类工程活动等因素,建立区域地质灾害危险性评价指标体系。评价结果表明:极高危险区、高危险区、中危险区、低危险分别占比10.8%%、28.4%%、25.8%、35.0%。此外,利用ROC曲线对本次评价精度进行验证,结果表明评价精度较高为75.5%,评价结果可为福泉市地质灾害防治提供参考和依据。In order to predict geological disasters inadvance,so as to take the corresponding preventive measures to reduce the loss of human property.Taking Fuquan City as an example the paper used ArcGIS combined with the Information Value model to evaluate the risk of geological disasters by analyzed the factors affected by geological disasters,and established a regional geological hazard risk evaluation index system by using factors such as topography conditions,stratography,geological structure,meteorological and hydrological and human.engineering activities.The evaluation results showed that the proportion of very high danger zone,high danger zone,medium danger zone and low danger,they are 10.8%,28.4%,25.8%and 35.0%,respectively.In addiction,used the ROC curve to verify the accuracy of this evaluation,and and the results show that evaluation accuracy is 75.5%,and the evaluation results can provide reference and basis for the prevention and control of geological disasters in Fuquan city.

关 键 词：ARCGIS 信息量模型 危险性评价 指标体系 ROC曲线 

分 类 号：P694[天文地球—地质学]