| Assessment and Risk Zonation of Landslides in Panxi Area Based on 3S Technology |
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| 作者姓名： | ZHANG Baolei SONG Shujun FENG Wenlan ZHOU Wancun . Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu Sichuan China . Graduate University of Chinese Academy of Sciences Beijing China |
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| 作者单位： | ZHANG Baolei 1，2，SONG Shujun 1，2，FENG Wenlan 1，2，ZHOU Wancun 1 1. Institute of Mountain Hazards and Environment，Chinese Academy of Sciences，Chengdu 610041，Sichuan，China; 2. Graduate University of Chinese Academy of Sciences，Beijing 100049，China |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 0IntroductionThe Panxi Area is situated at the Valley ofJialing River with rich products and hugedeveloping potentials,anditis ani mportant ecolo-gy barrier of maintaining the ecological environ-ment stable of Sichuan Province and even that ofthe whole China1].At the same ti me,the PanxiAreais an ecology frail area,andits one of obvi-ous expressionsis the frequent occurrence of geo-logical disaster2,3].According to the investigation4],there are5148debris flows with drainage area above0.…
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| 关 键 词： | 山崩 3S技术 危险分布 攀西地区 环境地质 |
| 文章编号： | 1007-1202（2006）04-0793-08 |
| 收稿时间： | 2005-12-10 |
Assessment and risk zonation of landslides in Panxi Area based on 3S Technology |
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| Zhang Baolei,Song Shujun,Feng Wenlan,Zhou Wancun.Assessment and Risk Zonation of Landslides in Panxi Area Based on 3S Technology[J].Wuhan University Journal of Natural Sciences,2006,11(4):793-800. |
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| Authors: | Zhang Baolei Song Shujun Feng Wenlan Zhou Wancun |
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| Institution: | (1) Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, 610041 Chengdu, Sichuan, China;(2) Graduate University of Chinese Academy of Sciences, 100049 Beijing, China |
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| Abstract: | Based on field survey located by GPS, it is obtained landslides' location and distribution information by the method of remote
sensing in this paper. The vector data of environmental factors that breed and induce landslides such as the elevation, the
slope, the vegetation cover, the lithology, the rainfall and so on are gained using GIS (geographical information system)
techniques of spatial analysis. All the data obtained are managed through building landslide management system. At the same
time, the system is made the platform to appraise the relationship between the distribution of landslides and the environmental
factors. The results indicate: landslides take place relatively easily in the slope range between 10° and 25°; most landslides
are in the mixed area of bush and grass with a coverage degree of from 20% to 65%; the distribution of landslides has a positive
relationship with the distribution of annual rainfall. The risk degree of Panxi Area is zoned and mapped by the model of liner
stack using GIS technique, and the result indicates: the place of high risk degree is the belt of Panzhihua-Miyi-Dechang-Mugu
and southeast of Huili county and Huidong county, and area is about 512 707 hm2.
Foundation item: Supported by the Knowledge Innovation Program of Chinese Academy of Sciences (KZCX2-SW-319-01) and the Project
of Science and Technology Bureau of Sichuan Province (2005]-172-140107)
Biography: ZHANG Baolei (1979-), male, Ph. D. candidate, research direction: application of RS and the development of GIS. |
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| Keywords: | landslide 3S technology risk zonation Panxi Area |
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