| 张号,倪顺程,胡磊,郭正,吕星,肖明宏,沈宝存,符常渝,杨健,谈红梅.基于 GIS的增城区地质灾害易发性分区研究[J].矿产勘查,2024,15(S2):226-236 |
| 基于 GIS的增城区地质灾害易发性分区研究 |
| Study of geological disasters susceptibility division based on GIS in Zengcheng District |
| 投稿时间：2024-07-03 |
| DOI：10.20008/j.kckc.2024s2030 |
| 中文关键词: 增城区 地质灾害 GIS技术 信息量模型 易发分区 |
| 英文关键词: Zengcheng District geological disaster GIS Technology information model susceptibility divi. sion |
| 基金项目: |
|
| 摘要点击次数: 0 |
| 全文下载次数: 0 |
| 中文摘要: |
| 增城区位于广东省广州市东部，近年来增城区发展迅速，也使得区内地质灾害频发。地质灾害易发性评价对区域地质灾害发育情况有较好的预测效果，本文以增城区为研究区，在分析其地形地貌、地质背景、灾害形成条件基础上，选取高程、坡度、坡向、工程地质岩组、地质构造、水域、植被覆盖度、土地利用等 8个评价影响因子，构建 GIS信息量模型，开展地质灾害易发性分区评价。结果表明，增城区按地质灾害易发性划分为高易发区、中发区、低易发区 3类，面积分别为 46. 10 km2、849. 10 km2、721. 27 km2，分别占县域面积的 2. 85%、52. 53%、44. 62%。地质灾害空间上主要分布在增江街道、荔城街道及中新镇，其频繁的人类工程活动引发了大量的地质灾害，使得增城区地质灾害呈团块状及带状集中连片分布，基于 GIS的信息量模型能够有较好的可操作性，且评价结果较为精准，能够为增城区地质灾害预测及防治提供地质依据。 |
| 英文摘要: |
| Zengcheng District is located in the east of Guangzhou，Guangdong Province. The rapid develop. ment of Zengcheng District in recent years has caused frequent geological disasters in the area. The evaluation ofgeological hazard susceptibility has a good prediction effect on the development of regional geological hazards. Thispaper takes Zengcheng District as the research area，and on the basis of analyzing its landform，geological background and disaster formation conditions，selects eight evaluation impact factors，including elevation，slope， slope direction，engineering geological rock group，geological structure，water area，vegetation coverage and landuse. The GIS information model was constructed to evaluate the geological hazard susceptibility region. The resultsshow that Zengcheng district can be divided into three types according to the geological hazard susceptibility， namely high，medium and low，with an area of 46. 10 km2，849. 10 km2 and 721. 27 km2，accounting for 2. 85%， 52. 53% and 44. 62% of the county area，respectively. Geological disasters are mainly distributed in Zengjiang Street，Licheng Street and Zhongxin Town in space，and their frequent human engineering activities have caused a large number of geological disasters，making the geological disasters in Zengcheng District distributed in clustersand strips. The information model based on GIS has good operability，and the evaluation results are more accurate. It can provide geological basis for the prediction and prevention of geological disasters in Zengcheng district. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |