Assessment of Impact Factors for Landslides Based on Rough Sets Theory: A Case Study on the
详细信息
- 责任者：Liu Jiping (College of Resource and Environment Science. Wuhan University ; Wuhan 430079 ; China) ; Liu Hanqing
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2010
- 卷期：37(5)
- 关键词：滑坡 ; landslides ; 地理信息系统 ; geographic information system ; 长江三峡 ; Yangtze River Valley
- 页码：p.118-122,132
- 图表：4 illus., 4 tables, 10 refs.
- 分类号：1800
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
Landslides can be affected by a series of environmental factors.The present study aimed to analyze landslide susceptibility in the Qingganhe River of Three Gorges area in China.Spatial information techniques,including RS and GIS with an innovative data mining approach,namely,the rough sets theory,are incorporated to the study for landslide factors analysis.In a case study,the cores( i.e.,slope,elevation,slope type,vegetation index,and rock type) and reductions of the data attributes were obtained after data mining using the rough sets theory.Rules of all the impact factors,which can make contributions to landslide occurrence,were generated on the basis of landslide knowledge.All of the 11 rules were classified into straight rules and approximate rules,while three main rules were extracted to be the decision-making rules for landslide predictions in view of importance.