Document Type : Scientific article
Authors
1
M.Sc. of Forestry, Faculty of Natural Resources, Urmia University, Urmia
2
Assistant Professor, Forestry department, Faculty of Natural Resources, Urmia University, Urmia
3
Assistant Professor, Watershed and rangeland department, Faculty of Natural Resources, Urmia University, Urmia
Abstract
Forest roads play an important role in management, conservation, and forest restoration in mountainous area. In order to find out the influencing factors in the road design, Delphi method was applied. At the first stage, the most influencing factors are determined based on experts choices then at the second stage, those variants has been weighted. In the study, both technical and environmental factors including gradient, distance from fault or landslide, current roads, bedrock, soil texture, harvesting and extraction equipment, distance from river and springs, aspect, elevation from sea level, genetic reservation value, conserved area, animal inhabitant, bio diversity, forest stock, landscape, forest type, access to village, forest settlement, and cattle yards has been investigated. The criteria finally are ranked based on forest road expert idea obtained from questionnaire based on ELECTRE III method using paired comparison analysis. According to the results, factor gradient with 0.17 values ranked at the first place and factor cattle yard with 0.004 values placed at the end.
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