Evaluation and Landslide hazard zonation using LIM model with GIS techniques (case study: Saein watershed. Ardabil)
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 23
Abstract
The main goal of studing landslide would be finding ways of reduceing the damage couse abou which necessitates using zonation. This study was done to identify effective factors in landslide and also to identify the regions which have the potential hazard in saeen and it was Landslide Index Method (LIM). In this study using different sources at studies topographic maps, satellite images and knowledge of GIS the following factors were considered to have the main in fluence: geoloyy, slope degree, distance of fault, plasticity of soil, landuse, precipitation, distans from road, stream, slope aspect, hight and degree of annual extraction temperature and then distribution ma of landslide using field reaserch and satellite images was made. In LIM eleven effective factors in landslide were evaluated and after obtaining the weight each factors map and the column of final weight of each unit and ultimately algebric sum of eleven factor layers the final weight of the map and zonation of risk and landslide..were..done. It was concluded that geologicale factor in model is the first priority and but other factors example slope plasticity, soil height and other factors in model have fined weights and different priorities and the LIM model has more correspondence compert to the condition of distribution in landslide.
Authors and Affiliations
Elham Nezhadali, Abazar Esmaili ouri and Ebrahim Pazira
Keywords
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