Volume 5, Issue 10 (1-2015)
J Watershed Manage Res 2015, 5(10): 157-169 |
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(2015). Landslide Hazard Zonation using Information Value and Analytical Hierarchy Process (AHP) Methods (A Case Study: Shalmanrood Watershed). J Watershed Manage Res. 5(10), 157-169.
URL: http://jwmr.sanru.ac.ir/article-1-421-en.html
URL: http://jwmr.sanru.ac.ir/article-1-421-en.html
Abstract: (4869 Views)
Landslide is a type of hillside movement which leads to the movement of surface materials in gradient hillsides. In Northern hillsides of Alborz mountain range, by resean of occurring local condition and humid climate, can be observed a high land slide hazard potential as compared with the other parts. Among of these regions is
Shalmanrood watershed that, it was located in Langrood city and over 42 land slide were recorded in this area. In this study, For Land slide hazard zonation two regression and Analytical hierarchy Process (AHP) methods were applied. At first, Using ARC GIS Software the information layers containing of land use, slope, lithology, distance from road, distance from river, distance from fault were provided and then, the land slide hazard maps with applying two mentioned methods, were provided on five classes (very low, low, medium, high and very high hazard zone). Order to assessment of two applied methods in this study, the land slide hazard zonation map from each method was compared with land slide scattering map (Land slide index). Results showed that, two varieties regression method is more suitable than AHP method. Also, Result showed that land use (garden of tea). Lithology and slope (45-65%) were effective factors on the land slide hazard occurring.
Shalmanrood watershed that, it was located in Langrood city and over 42 land slide were recorded in this area. In this study, For Land slide hazard zonation two regression and Analytical hierarchy Process (AHP) methods were applied. At first, Using ARC GIS Software the information layers containing of land use, slope, lithology, distance from road, distance from river, distance from fault were provided and then, the land slide hazard maps with applying two mentioned methods, were provided on five classes (very low, low, medium, high and very high hazard zone). Order to assessment of two applied methods in this study, the land slide hazard zonation map from each method was compared with land slide scattering map (Land slide index). Results showed that, two varieties regression method is more suitable than AHP method. Also, Result showed that land use (garden of tea). Lithology and slope (45-65%) were effective factors on the land slide hazard occurring.
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