Paper Information

Journal:   GEOGRAPHICAL JOURNAL OF CHASHMANDAZ-E-ZAGROS   WINTER 2010 , Volume 1 , Number 2; Page(s) 21 To 30.
 
Paper: 

ZONING THE RISK OF LANDSLIDE IN ARDAL COUNTY BY USING AHP

 
Author(s):  RANJBAR MOHSEN, ROGHANI P.
 
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Abstract: 

Stability and instability of natural gradients are among the factors which play a determinative role in planning and placing the various kinds of usages. Studying the mass movements and the probability of occurrence of this phenomenon will be useful in the procedure of planning. Zoning the slope movements is among the methods for determining the critical regions for gradient stability. Statistical survey of gradient parameter shows that the potential for instability increases with the increase in the gradient of slope. The main goal of this paper is to determine the most important and effective factor in occurrence of land side in Ardal County, Chahar Mahal va Bakhtirari province. Therefore, according to studies in the field of the effective factors on occurrence of land slide, obtained results were using gradient maps, direction of gradient, lithology, usage of lands, distance with fault, and waterway network. Calculating the value of each factor using Analytical Hierarchy Process and pair comparison of said factors and also preparing the map of zoning the risk of land slid, according to the final value of each factor, we can conclude that the most important and effective factor in land slide in Ardal county is gradient factor, and also the second effective factor with direct effect on the amount of land slide in region is lithology.

 
Keyword(s): ZONING THE RISK OF LAND SLIDE, ANALYTICAL HIERARCHY PROCESS, PAIR COMPARISON, ARDAL
 
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