Land slide Hazard Zoning in Lahijan County Using Entropy and Multi Decision Making Promethee Methods

Landslides are one of the geomorphological hazards responsible for considerable damages as direct and indirect expenses in different regions every year. They play a major role in the destruction of human installations, human casualties, destruction of pastures and forests, and sedimentation in watersheds. This study aims at evaluating a Promethean model and entropy in landslide zonation of Lahijan city and identifying the impact of all the six factors in landslide and landslide hazard map using the Promethean model and entropy. It then provides scientific solutions for better management of the region against landslide hazard. The region landslides were initially identified using the visual interpretation of different maps and data. Through examining the landslides in the region, the sixfactors of lithology, distance to fault (DFT), topography, slope, slope direction, and land use were identified as the effective factors in a landslide occurrence. With respect to the characteristics obtained from the landslides in the region, the layers were weighted and classified based on experts opinions and the Promethean matrix and entropy weight were formed for them.