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GIS-based landslide susceptibility assessment using analytical hierarchy process in wenchuan earthquake region
Xu, Chong1; Dai, Fuchu1; Yao, Xin2, 3; Chen, Jian1; Tu, Xinbin1; Sun, Yu4; Wang, Zhiyi5 Source: Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, v 28, n SUPPL. 2, p 3978-3985, September 2009 Language: Chinese
ISSN: 10006915 CODEN: YLGXF5
Publisher: Academia Sinica

Author affiliation:
1  Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
2  Key Laboratory of Neotectonic and Geohazard, Ministry of Land and Resources, Beijing 100081, China
3  Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
4  China University of Geosciences, Beijing 100083, China
5  China University of Mining and Technology, Beijing 100083, China

Abstract: On 12 May 2008, a catastrophic earthquake with surface wave magnitude of 8.0 struck the Sichuan Province of China. Tens of thousand of landslides were triggered by this earthquake over a broad area. 48007 landslides were interpreted from aerial photographs and multi-source remote sensing imageries, verified by field check. A spatial database, including landslides and associated controlling parameters which may have influence on the occurrence of landslides, was developed and analyzed using geographical information system(GIS) technology. The correlations of landslide distribution with controlling parameters, including faults, lithology, elevation, slope angle, slope aspect, drainages and roads are firstly analyzed, and landslide area-ratio was calculated for each group of the above parameters. An analytical hierarchy process(AHP) was then applied to determine the significance of controlling parameters in triggering the landslides. The resulting susceptibility map showed five classes of landslide susceptibility, i.e. extremely high, high, moderate, low, and extremely low. The area with extremely high and high susceptibility accounts for about 8211 km2, 16.9% of the study area. This indicates that the result is reasonable in 60.5% of the landslides occurred in high or extremely high susceptibility region. (24 refs.)

Controlled terms:  Analytic hierarchy process  -  Aspect ratio  -  Earthquakes  -  Fluorine containing polymers  -  Geographic information systems  -  Hierarchical systems  -  Information systems  -  Landslides  -  Lithology  -  Photography  -  Remote sensing  -  Surface waves

Uncontrolled terms:  Analytical hierarchy process  -  Geographical information system(GIS)  -  Geographical information systems  -  Slope engineering  -  Wenchuan Earthquake

Classification Code:   746 Imaging Techniques  -  751 Acoustics, Noise. Sound  -  815.1 Polymeric Materials  -  903.2 Information Dissemination  -  961 Systems Science  -  903.3 Information Retrieval and Use  -  922.2 Mathematical Statistics  -  931 Classical Physics; Quantum Theory; Relativity  -  943 Mechanical and Miscellaneous Measuring Instruments  -  921 Mathematics  -  742.1 Photography  -  731.1 Control Systems  -  407.1 Maritime Structures  -  441.1 Dams  -  481.1 Geology  -  483.1 Soils and Soil Mechanics  -  484 Seismology  -  484.1 Earthquake Measurements and Analysis  -  711 Electromagnetic Waves  -  723.3 Database Systems
11楼2010-01-06 20:32:49
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xc11111111

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谢谢楼上,求助成功,不过只剩一个金币了
阳光从枝叶间漏下来落在流淌的小溪,牧羊少年把草帽盖在脸上听树叶在风中鼓掌。
12楼2010-01-06 23:26:15
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