| 中国地质灾害类型及其特征--基于全国县市地质灾害调查成果分析 |
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| 引用本文： | 李媛,孟晖,董颖,胡树娥.中国地质灾害类型及其特征--基于全国县市地质灾害调查成果分析[J].中国地质灾害与防治学报,2004,15(2):29-34. |
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| 作者姓名： | 李媛 孟晖 董颖 胡树娥 |
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| 作者单位： | 1. 中国地质大学(北京),北京,100083;中国地质环境监测院,北京,100081
2. 中国地质环境监测院,北京,100081 |
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| 摘 要： | 我国是世界上地质灾害最严重的国家之一。为了全面查清我国地质灾害的发育分布规律，国土资源部从1999年开始，在地质灾害严重的县(市)，陆续部署开展了县市地质灾害调查与区划工作。论文在290个县、市地质灾害调查成果的基础上，分析统计了我国主要地质灾害的规模、诱发因素、发育分布等特征，并以县、市为基本单元，利用地质灾害点密度、体积密度和面密度3个指标，对已调查县、市进行了地质灾害发育程度的评价。评价结果分为4个等级，其中地质灾害高发育县市30个，集中分布在重庆、贵州、湖北、甘肃、四川和云南等省；地质灾害较高发育县市107个，集中分布在湖南、江西、陕西、四川、贵州、湖北、云南和重庆等省市；地质灾害中等发育县市90个，集中分布在河北、四川、浙江和福建等省；地质灾害轻微发育县市62个，集中分布在河北、广西、新疆和山西等省。
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| 关 键 词： | 地质灾害 调查 类型 特征 发育程度 中国 |
| 文章编号： | 1003-8035(2004)02-029-06 |
| 修稿时间： | 2004年3月2日 |
Main Types and characterisitics of geo-hazard in China--Based on the results of geo-hazard survey in 290 counties |
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| LI Yuan.Main Types and characterisitics of geo-hazard in China--Based on the results of geo-hazard survey in 290 counties[J].The Chinese Journal of Geological Hazard and Control,2004,15(2):29-34. |
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| Authors: | LI Yuan |
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| Abstract: | China is one of the most serious geo-hazard country in the world. In order to find out the distribution of the geo-hazard in China, the Ministry of Land and Resources made a geo-hazard survey plan in serious geo-hazard counties. Based on the results of this survey in 290 counties, the paper analyzes the geo-hazard characterisitics of type, size, excitated facter, development and distribution.Considering the density of geo-hazard amount, volume and area, the development degree of geo-hazard in 290 counyies has been estimated. 30 counties with serious geo-hazard distribute in Chongqing City, Guizhou Province, Hubei Province, Gansu Province, Sichuan Province and Yunnan Province. 107 counties with relatively serious geo-hazard distribute in Hunan Province, Jiangxi Province, Shannxi Province,Sichuan Province, Guizhou Province, Hubei Province, Yunnan Province and Chongqing City. 90 counties with moderate geo-hazard distribute in Hebei Province,Sichuan Province, Zhejiang Province and Fujian Province. 62 counties with moderate geo-hazard distribute in Hebei Province, Guangxi Province, Xinjiang Province and Shanxi Province. |
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| Keywords: | geo-hazard survey type characterisitic development degree China |
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