- 责任者：Niu Quanfu (College of Earth and Environmental Science ; Lanzhou University ; Lanzhou 730020 ; China) ; Cheng Weiming
- 刊名：Journal of Mountain Science
- 出版年：2011
- 卷期：29(2)
- 关键词：玉树地震 ; Yushu earthquake
- 页码：p.243-249
- 图表：7 illus., 3 tables, 19 refs.
- 分类号：1800
- issnNo：ISSN1008-2786
- isbnNo：CN51-1516/P
Yushu Ms7. 1 earthquake, occurred on 14 April 2010 in Qinghai province induced a kind of secondary geological disasters. Based on GIS and information value methodology, taking the factors including slope, aspect, altitude, morphology, slope characteristics, geomorphologic types, fault and lithology as assessment factors, information value of secondary geological disasters in different assessment factors was calculated by means of ArcGIS. Then the spatial distribution of secondary geological disasters in each of assessment factors was discussed. Space model for each map layer of assessment factors was performed. Information value map was calculated and categorized into three classes, specifically, "low", "moderate", "high". According to the disasters acquired from remote sensing overlayed on the Information value map, the result can be summarized as follows. The hazard classes calculated by GIS and information value methodology preferably inosculate with field surveying. The result of this paper can provide the valid basis for the reconstruction of Yushu earthquake area in future.