| 我国登陆台风影响区地质灾害易发性分析 |
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| 引用本文： | 徐晶,江玉红,韦方强,张国平.我国登陆台风影响区地质灾害易发性分析[J].中国地质灾害与防治学报,2008,19(4):61-66. |
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| 作者姓名： | 徐晶 江玉红 韦方强 张国平 |
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| 作者单位： | 1. 中国气象局国家气象中心,北京,100081
2. 中国科学院成都山地灾害与环境研究所,成都,610041 |
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| 基金项目： | 公益性行业(气象)科研专项项目
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中国气象局气象新技术推广基金
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| 摘 要： | 地质环境脆弱的地区，台风的特大暴雨可以诱发山体滑坡和泥石流等地质灾害，造成严重人员伤亡。本文分析了我国登陆台风影响区域内的地质灾害时空分布特点，利用信息量方法，通过灾害的易发性区划来分析登陆台风影响区地质灾害特征，进而比较台风和非台风影响条件下地质灾害产生的地理条件和信息量差异。分析结果表明，在台风强降雨条件下，地质灾害的触发地质环境条件较非台风降雨触发地质灾害明显降低，地质灾害脆弱性明显增加。
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| 关 键 词： | 台风 泥石流 滑坡 地质灾害 易发性分区 |
Susceptibility analysis of geologic hazards in landfall typhoon-affected areas in China |
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| XU Jing,JIANG Yu-hong,WEI Fang-qiang,ZHANG Guo-ping.Susceptibility analysis of geologic hazards in landfall typhoon-affected areas in China[J].The Chinese Journal of Geological Hazard and Control,2008,19(4):61-66. |
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| Authors: | XU Jing JIANG Yu-hong WEI Fang-qiang ZHANG Guo-ping |
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| Institution: | XU Jing~1,JIANG Yu-hong~2,WEI Fang-qiang~2,ZHANG Guo-ping~1 |
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| Abstract: | For areas where geologic environment is susceptible to geological hazards,typhoon rainstorms can induce landslides and debris flows that cause severe casualties.In this paper,spatial-temporal properties of geologic hazards within landfall typhoon-affected areas in China are analyzed.By means of information model,susceptibility mapping is carried out and is used to analyze characteristics of geologic hazards in landfall typhoon-affected area.In addition,differences of geographical conditions and information between typhoon-induced and non-typhoon-induced geologic hazards are analyzed.The results show that in the case of typhoon rainstorms,geologic and environmental thresholds for the occurrences of geological hazards are much lower than those without typhoon rainstorms,the area is much more susceptible to geologic hazards. |
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| Keywords: | typhoon debris flow landslide geologic hazard susceptibility mapping |
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