Journal of Forest and Environmental Science

Institute of Forest Science, kangwon National University (강원대학교 산림과학연구소)
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Productivity and Cost of Tree-length Harvesting Using Cable Yarding System in a Larch (Larix leptolepis) Clear-cutting Stand

  • Jeong, Eungjin (College of Forest & Environmental Sciences, Kangwon National University) ;
  • Cho, Koohyun (Forest Practice Research Center, National Institute of Forest Science) ;
  • Cho, Minjae (College of Forest & Environmental Sciences, Kangwon National University) ;
  • Choi, Byoungkoo (College of Forest & Environmental Sciences, Kangwon National University) ;
  • Cha, Dusong (College of Forest & Environmental Sciences, Kangwon National University)
  • Received : 2017.03.30
  • Accepted : 2017.05.15
  • Published : 2017.05.31
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Abstract

The purpose of this study was to examine productivity and cost of tree-length harvesting using cable yarding system in a larch (Larix leptolepis) clear-cutting stand located in Pyeongchang-gun, Gangwon-do. We used tree-length harvesting method using cable yarding system with a tower yarder HAM300. The productivity was $17.6m^3/hr$ for felling, $12.4m^3/hr$ for delimbing, $4.2m^3/hr$ for yarding, and $8.1m^3/hr$ for processing. The total cost of the harvesting system was $48,381won/m^3$, which was majorly composed of yarding operation cost, at $40,169won/m^3$ (79.3%), while felling had the lowest cost at $1,154won/m^3$ (4.1%). Major factors affecting felling and processing productivity was tree volume and the number and thickness of branches for delimbing productivity. In addition, we suggest that training and education for machine operators were critical to improve yarding productivity.

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References

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