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Optimal Forest Road Density Based on Skidding and Road Construction Costs in Iranian Caspian Forests | ||
| Caspian Journal of Environmental Sciences | ||
| مقاله 5، دوره 7، شماره 2، تابستان 2009، صفحه 79-86 اصل مقاله (182 K) | ||
| نویسندگان | ||
S. Mohammadi Limaei1 ؛ R. Naghdi  2
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| 1Dept. of Forestry, Faculty of Natural Resources, University of Guilan, Somehe Sara 1144, Iran | ||
| 2Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmehsara, P.O. Box: 1144 ,Iran. | ||
| چکیده | ||
| 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. | ||
| کلیدواژه ها | ||
| Forest road network؛ Optimization modeling؛ Linear programming؛ Caspian forests | ||
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آمار تعداد مشاهده مقاله: 642 تعداد دریافت فایل اصل مقاله: 595 |
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