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Geographical Research is Published in Persian Fulltext.
Volume 27, Issue 3 (2012)
GeoRes 2012, 27(3): 21-44 |
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Received: 2018/07/28 | Accepted: 2018/07/28 | Published: 2018/07/28
Received: 2018/07/28 | Accepted: 2018/07/28 | Published: 2018/07/28
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Karami F. Landslide susceptibility assessment in semiarid mountain watershed Using weights-of-evidence and statistical method (Saeedabad-chai Watershd- North of Sahand Mountain) . GeoRes 2012; 27 (3) :21-44
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URL: http://georesearch.ir/article-1-564-en.html
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Abstract (3782 Views)
The aim of this study is assessing and mapping landslide susceptibility in watershed of semiarid mountain areas. Saeedabad-chai Watershd is located on the northwest of Iran and the North of Sahand Mountain. This study is using Bivariate Statistical Analysis (BSA)، weights-of-evidence (WOE)،GIS. The results of this assessment show that causative factors as slope (∑wƒ= + 3.965)، landuse(∑wƒ= + 0.759)، distance of road(∑wƒ= + 1.498)، lithology (∑wƒ= + 0.424)، rainfall (∑wƒ= + 0.388)، distance of rural (∑wƒ= + 0.161) play a major role in the landslide occurrence.There is a negetive relationship between landslides and distance of fault (∑wƒ= - 0.006) and distance of channel (∑wƒ= - 0.325) in the Saeedabad-chai Watershd. The medium، high and very high susceptbility zones make up 43.116 % of the total study area. The acuuracy of the map was evaluated by( Li) index. This index shows that 92% of landslides occure on medium، high and very high susceptbility zone.
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