Landslide Hazard Regionalization Using Analytical Hierarchy Process and GIS Techniques (Case Study: Zarand Watershed)

The purpose of this research is Landslide hazard regionalization using analytical hierarchy method and GIS technique. For this purpose affecting factors were binary compared using analytical method by indicating the weight of each factor as indicator for their effects in occurrence of landslide. Accordingly, the landslide regionalization hazard map was prepared to the use of weighed information layer and weighted coefficient of each factor. Results of this study show that the analytical hierarchy method is precise method for evaluation of landslide potential due to the use of binary comparison affecting factors and considering numerous factors for landslide evaluation at the same time in comparison to the other prevalent method and the results indicates that the percentage of high hazard class is 25 percent in AHP method.