بررسی پتانسیل زمین لغزش در حوزه نوژیان (جنوب شرق خرم آباد ) و پهنه بندی آن

This study is an attempt to examine the Landslide potentials in Nojian Area and the zonation of Landslide in that Area . Nojion is Located ۳۰ Km away in the South East of Khoramabad with the Area of ۳۴۴۹۱ Hectars . This Area has the highest amount of   sedimentation Locating within the Limits of water shed basin of Dez Dam . In order to zonate the risk of Mass movement , first the natural maps including geology , slope , slopedirection , landuse , regional fault maps the intensity of the earthquake , etc , were prepared . in the second stage this data was digitalized . Then by drawing on field work , Arial photo and digital data from satelite , Landslide – prone zones including falling and sliding one were drawn on the base map of the respective region . by incorporating natural maps with the Landslide ones , the extent of sliding in different parameters was obtained . finally through culculation of statistical method (surface density) for each parameter Lithology , slope , slope direction , distance from fault , Landuse , intensity of the raining , intensity of the earthquake and etc . The numerical value for each parameter was obtainted by matching and zonation landslide map was obtained . finallay the resaults of the study shown that ۸۱ precent landsliding of the region include high and very high risk .