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Evaluation of Landslide Hazard Zonation Models in Latian Dam Watershed

عنوان مقاله: Evaluation of Landslide Hazard Zonation Models in Latian Dam Watershed
شناسه ملی مقاله: JR_JEG-1-1_005
منتشر شده در شماره ۱ دوره ۱ فصل بهار در سال 1382
مشخصات نویسندگان مقاله:

j ghayoumian - Soil Conservation and Watershed Management Instrtute P.O. Box ۱۳۴۴۵-۱۱۳۶, Tehran- Iran
m.a fatahi ardakani - Soil Conservation and Watershed Management Instrtute P.O. Box ۱۳۴۴۵-۱۱۳۶, Tehran- Iran
n jalali - Soil Conservation and Watershed Management Instrtute P.O. Box ۱۳۴۴۵-۱۱۳۶, Tehran- Iran

خلاصه مقاله:
Different methods are used for landslide hazard zonation. Some of the methods are based on specific condition of the area. In this research, applicapibility of a number of landslide hazard zonation methods in Latian Dam watershed is evaluated. For this purpose Latian Dam watershed due to variety in geological condition, engineering geological characteristics, topography, geomorphology, and precipitation was selected. Different thematic layers including geology, distance from active faults, elevation, slope rate and aspect, precipitation, and vegetation cover were prepared. More than 150 single and landslide zones were recorded based on aerial photo interpretation and field survey. The data were analyzed to find out about landslide controlling factors. Considering instability controlling factors, Nilsen, Information Value, Weight of evidence, and Density area methods were used for preparation of landslide hazard zonation in the watershed. The comparison of the prepared hazard zonation maps with landslide inventory map indicates that weight of evidence and information value methods with accuracy of 99.4 and 99.7 percent respectively are most appropriate methods for preparation of landslide hazaed zonation map in similar area in Central Alborz.

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/326498/