| 临沂市地质灾害现状及易发程度分区评价 |
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| 引用本文： | 祝丽媛,窦连波,李莺宇,陈秀娟,王伟德.临沂市地质灾害现状及易发程度分区评价[J].山东国土资源,2019,35(11). |
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| 作者姓名： | 祝丽媛 窦连波 李莺宇 陈秀娟 王伟德 |
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| 作者单位： | 山东省地质矿产勘查开发局第七地质大队,山东省地质矿产勘查开发局第七地质大队,山东省地质矿产勘查开发局第七地质大队,山东省地质矿产勘查开发局第七地质大队,山东省地质矿产勘查开发局第七地质大队 |
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| 摘 要： | 2016年,临沂市地质灾害排查共查明了391处地质灾害隐患点,主要类型为崩塌、滑坡、泥石流、采空塌陷和岩溶塌陷,崩塌数量最多,其次为采空塌陷和岩溶塌陷。地质灾害规模以小型为主。该文详细介绍了临沂市地质环境背景条件,各类地质灾害发育现状及分布特征。在此基础上,采用"地质灾害综合危险性指数法"进行地质灾害易发性评价,运用栅格数据处理方法将临沂市划分成1350个面积相等的单元,对影响地质灾害发育的地质条件、地形地貌条件、气候植被条件、地质灾害隐患点、地质灾害规模、分布密度、活动频次和险情等要素进行量化,根据实际情况对地质灾害易发程度分级进行定性修正,将临沂市地质灾害易发程度划分为高易发区、中易发区、低易发区及不易发区4个区。预测了地质灾害发展趋势,划分了地质灾害防治分区,建议完善地质灾害预警预报系统,为临沂市应急管理局的地质灾害应急救援提供地质灾害基础背景资料。
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| 关 键 词： | 地质灾害 发育现状 易发程度分区 临沂市 |
Present Condition of Geological Disasters and Evaluation on Susceptibility Zoning in Linyi City |
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| ZHU Liyuan,DOU Lianbo,LI Yingyu,CHEN Xiujuan and WANG Weide.Present Condition of Geological Disasters and Evaluation on Susceptibility Zoning in Linyi City[J].Land and Resources in SHANDONG Province,2019,35(11). |
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| Authors: | ZHU Liyuan DOU Lianbo LI Yingyu CHEN Xiujuan and WANG Weide |
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| Abstract: | 391 hidden dangers of geological hazards have been identified in Linyi city in 2016, including collapse, landslide, debris flow, goaf collapse and Karst collapse, followed by goaf collapse and karst collapse. The scale of geological disasters is mainly small. The background conditions of geological environment in Linyi city, and present development conditions and distribution characteristics of various geological disasters have been introduced in detail in this paper. On these basis, by using comprehensive risk Index method of geological hazards, the vulnerability of geological hazards has been evaluate. By using raster data processing method, 1350 units with equal area have been divided . Geological conditions, landform and the landform conditions, climatic and vegetation conditions, hidden danger points of geological disasters, scale of geological disasters, distribution density, activity frequency, dangerous condition and dangerous case have been quantified. According to actual situation, the classification of the vulnerability of geological disasters has been modified qualitatively, and the vulnerability of geological disasters in Linyi city has been divided into four areas. They are high prone area, middle prone area, low prone area and low prone area. The development trend of geological disasters has been predicted, and the prevention and control zoning of geological hazards has been divided. It is suggested that early warning and forecasting system of geological disasters should be improved. It will provide background information of geological disasters for the emergency rescue of geological hazards of the Emergency Management Bureau of Linyi city. |
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| Keywords: | Geologic hazards present development condition susceptibility degree zoning Linyi city |
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