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http://dx.doi.org/10.7747/JFS.2014.30.1.107

Harvesting Productivity and Cost of Whole-Tree Clear Cutting Using a Tower Yarder in a Larix leptolepis Stand  

Cho, Min-Jae (Department of Forest Management, Kangwon National University)
Cho, Koo-Hyun (Forest Practice Research Center, Korea Forest Research Institute)
Oh, Jae-Heun (Forest Practice Research Center, Korea Forest Research Institute)
Han, Han-Sup (Department of Forestry and Wildland Resources, Humboldt State University)
Cha, Du-Song (Department of Forest Management, Kangwon National University)
Publication Information
Journal of Forest and Environmental Science / v.30, no.1, 2014 , pp. 107-112 More about this Journal
Abstract
The productivity and cost of clear cutting operations were examined to broaden our knowledge on the harvesting system in a Larix leptolepis stand of Korea. The harvesting system was divided into tree operations which were chainsaw (STIHL MS440) felling, tower yarder (Koller301-4) yarding and harvester (WOODY H50) processing. The average cycle time of felling, yarding and processing were 98 s/cycle, 245 s/cycle and 150 s/cycle. The total stump-to-pile operational productivity was 43.07 $m^3/hr$. The highest production activity was the felling 17.93 $m^3/hr$, followed by the productivity of processing 15.62 $m^3/hr$ and then by the productivity of yarding 9.52 $m^3/hr$. In addition the total stump-to-pile operational cost was 24,086 $won/m^3$. The highest cost activity was the yarding 14,557 $won/m^3$ (60.4% of the total cost), followed by the costs of processing 8,461 $won/m^3$ (35.2%) and then by the costs of felling 1,068 $won/m^3$.
Keywords
Larix leptolepis; harvesting system; harvesting productivity; operational cost;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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