| 王璐.基于GIS技术的地质灾害易发性评价——以广东省曲江区为例[J].矿产勘查,2023,14(12):2492-2501 |
| 基于GIS技术的地质灾害易发性评价——以广东省曲江区为例 |
| Evaluation of geological hazard susceptibility based on GIS technology：A case study of Qujiang District， Guangdong Province |
| 投稿时间：2023-10-10 修订日期：2023-12-07 |
| DOI：10.20008/j.kckc.202312019 |
| 中文关键词: 易发性评价 斜坡类地质灾害 信息量模型法 |
| 英文关键词: susceptibility assessment slope geological hazards informative model method |
| 基金项目:本文受中央自然灾害防治体系建设项目“广东省韶关市曲江区地质灾害风险调查评价项目（HXZB2202007FG）”资助。 |
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| 中文摘要: |
| 广东省曲江区2022年度斜坡类地质灾害高发，对周边居民生命财产安全造成严重威胁，如何治理、预防斜坡类地质灾害是社会发展进步亟待解决的问题，当前的地质监测预警体系不能满足当地地质灾害防治的需求。本文基于GIS构建地质灾害预警模型，利用三维GIS空间信息系统获取坡度、地形起伏度、坡形、岩土体类型、地质构造、土地利用类型、植被覆盖率7个影响因子构建易发性评价体系，基于信息量模型法确定各影响因子的信息量值，同时叠加曲江区内地质灾害隐患点情况，划分易发分区，为该地区地质灾害的预测及防治提供参考。 |
| 英文摘要: |
| Qujiang District of Guangdong Province will have a high incidence of slope geological disasters in 2022， posing a serious threat to the life and property safety of surrounding residents. How to control and prevent slope geological disasters is an urgent problem for social development and progress， and the current geological monitoring and early warning system can not meet the needs of local geological disaster prevention and control. In this paper， a geological disaster early warning model is constructed based on GIS， and a susceptibility evaluation system is constructed by using three-dimensional GIS spatial information system to obtain seven influencing factors， including slope， topographic relief， slope shape， rock and soil mass type， geological structure， land use type and vegetation coverage rate. The information quantity value of each influencing factor is determined based on the information model method. At the same time， the hidden points of geological disasters in Qujiang area are superimposed and the prone zones are divided to provide reference for the prediction and prevention of geological disasters in this area. |
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