Evaluating the Potential of Landslide Susceptible Areas Using FBWM Model: A Case Study of Tabriz City

Document Type : Research Paper

Authors

1 PhD Student, Faculty of Geography, University of Tehran, Faculty of Geography, University of Tehran, Tehran, Iran

2 Assistant Professor, Faculty of Geography, University of Tehran, Tehran, Iran

Abstract

Environmental hazards, which encompass a wide range of natural hazards and human hazards, are among the barriers to development in different areas. Landslide is one of the hazards affecting different natural and anthropogenic factors and is one of the barriers to socio-economic and constructive development in each region. In this study, considering the different criteria, the potential of landslide occurrence in Tabriz city has been evaluated using FBWM model. The criteria used in this study are slope, curvature, elevation, fault, geology, vegetation, river and creek, roads, aspect, and land use. FBWM model is used to weight the criteria. This model is one of the newest multi-criteria decision-making models that weigh the criteria by comparing the criteria with each other and generating a nonlinear optimization problem. Finally, after weighting the criteria and creating standard maps, the standard maps and weightings were merged together and overlaid to produce the final map of landslide susceptible areas in Tabriz City. Based on the results, the north and northeast areas of Tabriz have high potential for landslides; these areas correspond to Valiasr town, Baghmishah, Einali Mountains, Pasdaran highway and the surrounding areas. On the other hand, the southern regions of Tabriz have a low potential for landslides. According to the results, 2.5% of Tabriz territory is located in very low potential areas for landslide occurrence, 15.16% is located in low potential areas, 36.04% is located in moderate potential areas, 40.97% is located in high potential areas, and 5.33% is located in very high potential areas for landslide occurrence. The results of this study have implications for organizations and organs such as Tabriz Municipality, Ministry of Roads and Urban Development, the Geological Survey and Mineral Explorations of Iran (GSI), and other organizations related to environmental risks.

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Main Subjects


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