Document Type : Original Manuscript
Authors
Marine Geology Department, Marine Natural Resources Faculty, Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran.
Abstract
Landslides are a kind of mass movement that has significant human, financial and environmental damage. Due to the destructive effects of this phenomenon on socio-economic and natural systems, it is essential to identify areas prone to mass movement and landslides throughout the country for use in land use planning. Sadat Hosseini region is sensitive to landslides due to its lithological, climatic and land use location, young roughness with high altitude differences and steep slopes. human activities Therefore, further studies in the region seem necessary. Three models have been used for landslide sensitivity zoning in the study area including Anbalagan, Haeri-Samiei method and AHP. In this study, lithology criteria, slope, type of land use and vegetation, slope direction, river length and seismic path and altitude classes have been used to identify landslide sensitivity. Effective factor maps were prepared in GIS environment and using GIS tools and statistical analysis, landslide sensitivity zoning map was obtained. The results of the output of the models showed that in landslide sensitivity zoning using the Anbalagan model, 0.01, 33.26, 48.20, 25.35, 90.17% of the area in the sensitivity classes are very low, respectively. , Low, medium, high, very high. Adaptation of landslide sensitivity zoning maps in the study area based on the three models as well as the current status of landslides shows that most landslides are seen in young alluviums consisting of barracks and young alluvial fans. Also, the results of the Anbalagan model in the region are more in line with the existing reality.
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