Application of Weighted Linear Combination (WLC) Model in Zonation of PotentialOccurrence of Landsliding (The Case Study of Sarkhoun Area in Chahar- Mahal & Bakhtiyari)

One of the first steps in natural resource management & development planning is the recognition of susceptible area to mass movements and landslides events. These phenomena occur under influence of many natural and human factors. In this survey the occurred mass movements and landslides has been recognized in Sarkhoun area in Ardal division of Chahar-Mahal & Bakhtiyari Province by interpretation of arial photoes and field observations with using GIS- Based Weighted Linear Combination (WLC) method, potential occurrence of landsliding in the Sarkhoun area based on 10 criteria(including of slope,aspect of slope, landcover, distance to main faults,greenness index, NDVI index,annually rainfall, geology,distance to main roads and distance to rivers) was evaluated and potential occurrence zonation map of mentioned area have been provided. For data standardizing, the fuzzy method and for weighting to criterions, AHP method have been used. The results of zonation shows that about 38% areas have high potential for landsliding. Zonation map shows susceptible and accident-prone zones for land sliding and can be used widely by natural resources managers and regional planers.The recognition of areas with high potential to landsliding, makes available necessary knowledge for avoiding from these areas and makes possible preponderant measures performance.