Document Type : Original Research Paper
Authors
1 Assistant Professor, Research Center for Agriculture and Natural Resources, Isfahan, Iran.
2 Assistant Professor, Geographic Sciences and Planning Faculty, Isfahan University, Isfahan, Iran.
3 Master, Research Center for Agriculture and Natural Resources, Isfahan, Iran.
Abstract
Regarding their nature and their variety, and hazards that landslides have for humans life and properties, landslides have always been the center of attention and study by scientist from different fields of study such as: geology, engineering geology, geomorphologies, these phenomena are a complex activity and different factors and variables could be effective in this occurrence, numerous studies have been done to recognize the effective factors, classification, zooming and modeling. Accordingly, we have tried to study the landslides in Kahredan basin in northern part of Semirom, DenaMountain in Zagros zone suburban area in Esfahan province and provide a landslide hazard zonation map by using the statistical method and the hazard map which has the most accuracy and precision will be selected. So finally we specify the order of effective parameters in landslides. According, by selecting following six parameters: slope aspect, lithology, land use, rainfall and distance from drainage, we provided the distribution of landslides map by using following four methods.
Information value, linear regression, discriminate analysis and area density. The best landslide hazard zonation map has been statistical method of information value which is capable of using in planning and urban developments. Effective parameters in landslides according to their importance are, lithology, distance from drainage, land use, slope and rainfall.
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