- 责任者：Su Fenghuan (Key Laboratory of Mountain Hazards and Surface Process ; Institute of Mountain Hazards and Environment ; Chinese Academy of Sciences ; Chengdu 610041 ; China) ; Cui Peng
- 刊名：Journal of Mountain Research
- 出版年：2013
- 卷期：31(4)
- 关键词：崩塌 ; avalanches ; 滑坡 ; landslides ; 四川 ; Sichuan Province
- 页码：p.502-509
- 图表：illus., 8 tables, 6 refs.
- 分类号：1800
- issnNo：ISSN1008-2786
- isbnNo：CN51-1516/P
On 20 April 2013 ,a catastrophic Ms 7.0 earthquake struck Lushan, Ya＇ an, Sichuan Province of China. A great number of secondary mountain disasters whose main types include rockfall, landslide, rolling stone, dammed lake etc. had been induced by the earthquake. Not merely did these secondary disasters result in heavy casualties but also blocked road for rescue service, which retarded the relieving progress. 1 379 and landslides rock- fall were interpreted from aerial photographs and muhi-source remote sensing imageries, verified by field check. A spatial database,including rockfall（landslide） and associated controlling parameters which may have influence on the occurrence of rockfall （landslide） , was developed and analyzed using geographical information system （GIS） technology. The correlations of rockfall （landslide） distribution with controlling parameters, including faults, litholo- gy, elevation, slope angle, PGA were firstly analyzed, and landslide number-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 rockfall（landslide） The resulting susceptibility map showed five classes of rockfall （landslide） susceptibility, i. e. extremely high, high, moderate, low. The area with extremely high and high susceptibility accounts for about 2 149.89 km2 ,32.32% of the study area.