Relationship between landslides and lithology in the Three Gorges Reservoir area based on GIS and information value model
Caiyan WU 1Jianping QIAO2
作者信息
- 1. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences & Ministry of WaterConservancy, Chengdu 610041
- 2. Environment and Resource College, Southwest University of Science and Technology, Mianyang 621010, China
- 折叠
Abstract
Development of landslides in the Three Gorges Reservoir area is related to many factors. Lithology is one of the indispensable internal factors, besides relative height differences, slope gradients and slope profiles. We used an information value model with geographical information system (GIS) technology to study how lithology contributes to the development of landslides from the Yunyang to Wushan segment in the Three Gorges Reservoir area and we quantify the relationship between lithology and development of landslides. Via an investigation of 205 examples of past landslides, we found that the lithology of J3s, J3p and T2b contributes most. Our research results can provide a valid basis for future construction in the Three Gorges Reservoir area.
Key words
Three Gorges Reservoir area, landslide, lithology, geographical information system (GIS), information value modelEnvironment and Resource College, Southwest University of Science and Technology, Mianyang 621010, China引用本文复制引用
基金项目
Fund for Youth Ph.D. of Southwest University of Science,Technology(07ZX7131)
Third Term Key Innovation Item of the Chinese Academy of Sciences(KJCX3-SW-L1-6)
National Science Project of the Ministry of Science and Technology of China(2006BACO4B05)
Item of International Co-operation of the Ministry of Science and Technology of China(2007DFA21150)
出版年
2009
NETL
NSTL
万方数据