Landslide Using AHP Model In GIS Case Study: Valley Village Qalandar Flour City Dehdez

Landslides and erosion of natural phenomena in the evolution of land forms involved. When the human population is affected by this phenomenon can be dangerous incident. Causing loss of life and destruction Vazjmlh financial resources, the destruction of residential areas, destruction of farms and farmland and roads, destroying bridges, railways, closing the tunnels, dams break and damage the electrical tower and so on be. In this study, the landslide hazard zonation never valley village Qalandar using AHP model in GIS are discussed. Slope, aspect, elevation, land use, topography, rainfall as the main parameters affecting the landslide area were selected. After preparing the data layer using the above parameters for mapping landslide risk weighting model and the ARC GIS software was used to analyze the relationship of AHP. The results of weighting model AHP, and implement it with the slip occurred in the catchment area shows that Paramtrhsasyt erosion formations with the greatest weight (219/0) and land use (173/0) and the lowest height (052 / 0), the lowest weight gain and other indicators respectively, rainfall, altitude, and minimum weight of the layer's waterways. After overlay zoning landslide hazard map into 4 groups: very high, high, medium, low, very little was produced.