LandslidesHazardZonationwithtwoMultiplelinearregression (MR) andAnalyticalhierarchyprocess (AHP) methods.(Casestudy: Zonouzchaywatershed)

Observation of watershed management, abilities and limitations assessment (such as landslides) of natural resources. The other side, landuse planning and stable development strategy, solidate spreadly with lawly and techniqual obligations by capability assessment maps and density and type invironment hazard zonation such as landslides and land unstability. This research was effort in this regard, studing landslides trigerring factors and mass movement hazard zoning for the Zonouz chay watershed, zoned by both Multiple linear regression (MR) and Analytical Hierarchy process (AHP) methods. For this idea first the landslides triggering factores of the area were studied, then the most important factors including lotology, slop, distance of road, distance of fual, altitude, aspect, texture of soil landuse were investigated and next, the map of landslides distribution was prepared. In linear MR merhod, after changing landslides distribution map to 250m×250m squar unit density area map, was given weight quality map of factors by density area model and was maked their quatitative statement s. Employing Stepwise regression method and the zoning model was found after omitting the altitude and landuse factors. In AHP method, the above mentioned 8 factors were used. Next, quantify the factors and indexes weights by composition with density area model. Then, gave them weights and zoning model was found. Assessment accuracy between two Multipl linear regession and Analytical Hierarchy process methods has done by Qualitative Summary index (QS). Finally, the results of these two methods, it was found that the AHP method, with composition density area model with QS = 1.1, is accurate than Multiple linear Regression (MR) method.