| Popis: |
Landslide susceptibility zonation is one of the research hotspots in the field of landslide research. It is important in the process of disaster prevention and land planning. Select Wan Zhou as study area; it is one portion of the Three Gorges Reservoir Area. According to existing landslide statistical data, select lithology, slope gradient, slope structure and reservoir grade as impact factors. Use analytic hierarchy process and information method to calculate weighted value of each factor respectively, and then combine them. The landslide susceptibility zonation was done by ArcGIS. This method can unite the advantages of the disaster data and expert experience. According to statistics, result accuracy rate is 90.3%.The key area of landslide disaster prevention can be obtained from the landslide susceptibility zonation map. |
