نوع مقاله : مقاله پژوهشی
نویسندگان
ندارد
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Identification of regions having potential for landslides occurrence, is one of the
basic measures in natural resources management. In this Study, in order to preparing
landslides hazard zonation map in Safaroud watershed, by using geographic
information system software (ArcGIS9.3), topographic maps (1:25000), field
observations and interpretation of aerial photo, basic maps such as geographical map,
hypsometry, slope Degree, slope aspect, the average annual rainfall, maximum 24-
hour rainfall with return period 100 years, the maximum earthquake acceleration and
the distance of roads, rivers and faults, is produced. Then using Logistic Regression
Method, landslides hazard zonation map of this watershed is prepared. The results
showed that 52.28 percent area of Safaroud watershed have had high and very high
classes of hazard, and theses areas are located on formations content layer of silt stone,
sheyl, sandstone, conglomera and coal, on Slope from 15 to 35 degrees, close to roads,
rivers and faults and in the average heights (1000 to 1500 meters asl.) that have large
amount of rainfall (more than 850 mm).
کلیدواژهها [English]
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