학술논문

Optimal Forest Road Density Based on Skidding and Road Construction Costs in Iranian Caspian Forests
Document Type
article
Source
Caspian Journal of Environmental Sciences, Vol 7, Iss 2, Pp 79-86 (2009)
Subject
Caspian forests
Linear programming
Optimization modeling
Forest road network
Environmental sciences
GE1-350
Science
Language
English
ISSN
1735-3033
1735-3866
Abstract
Information on the productivity, costs and applications of the logging system is a key component in the evaluation of management plans for the rehabilitation and utilization of Caspian forests. Skidding and road construction costs are expensive forest operations. Determining the optimum forest road network density is one of the most important factors in sustainable forest management. Logging method is an important factor to determine the optimum road network density. In this research, in order to determine the optimum road network density, skidding cost and road construction cost were calculated. Linear programming model was used in order to reduce the skidding costs and to determine the optimal forest road network density. Our aim was to determine the minimum skidding cost for Timber Jack and Clark skidders for different average skidding distance. The results showed that it is less costly if Clark skidder is used for skidding. Then the optimal road network density at this manner was 8 m/ha.