پهنه بندي خطر زمين لغزش در باغ هاي چاي (جنوب لاهيجان و لنگرود)

Zonation of Landslide Risk in the Tea Gardens (South of Lahijan and Langarood

This article basis tender landslide hazard zonation into tea gardens lahijan and Langerood south. by survey natural traits and outdoorwork and by use of 9 factor (lithology, distance of fult, slope, aspect, precipitation, distance of drainage, distance of road, distance of village and land use). Identitied effective ingredients in Occurrence this phenomenons and create primeval information bank and purvey and emprisied topography maps, geology maps, geomorphology, climatology and cover _ landuse. Then meantime purvey landslide transmittal map, reducted each one of upon maps at regularity at standard maps(slope, aspect, lithology,distance of fult, precipitation, distance of road, distance of village, distance of drainage and cover_land use). used for modeling in this research of metod eventual frequency ratio(FR). Ditincted mainest and premiest factors and ingredient operative in occurrence and prospect landslide and modeling landslide risk zoning in ovservation locale. In extremity assessmented effect each one of respective ngredient and assessmented accuracy final map by support ROC cycloids. This map serviceable in schematizations development and inhabit zonular, parochial, vernacular