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http://dx.doi.org/10.7747/JFES.2019.35.3.197

The Characteristics of Residual Stand Damages Caused by Skyline Thinning Operations in Mixed Conifer Stands in South Korea  

Han, Sang-Kyun (Department of Forestry, Korea National College of Agriculture and Fisheries)
Cho, Min-Jae (Forest Technology and Management Research Center, National Institute of Forest Science)
Baek, Seung-An (Forest Technology and Management Research Center, National Institute of Forest Science)
Yun, Ju-Ung (Korea National Park Research Institute, Korea National Park Service)
Cha, Du-Song (Department of Forest management, Kangwon National University)
Publication Information
Journal of Forest and Environmental Science / v.35, no.3, 2019 , pp. 197-204 More about this Journal
Abstract
A tree-length harvesting system using the HAM300, which is mounted on a farm tractor prototype machine, have been recently introduced in South Korea for thinning old (>30 years) forests. However, no research has previously been conducted on the characteristics of residual stand damage associated with cable yarding systems on thinning treatment stands in South Korea. Therefore, there were assessed on the degree and quantity of residual stand damage caused by felling and yarding process to broaden the knowledge of residual stand damage on semi-mechanized skyline thinning operations. This study investigated scar size, direction, area, shape type and their distribution on the residual stand damage caused by felling and yarding operations. Damage to residual trees was generated for 7.4% and 6.9% of residual trees in felling and yarding operations, respectively. Damaged direction of scars was located in front-side (38.9%) and up-side (34.7%) for felling operations while the highest scar damage was found on down-side (44.6%) for yarding operations. Scar heights of felling damage were higher than those of yarding damage. In yarding operation, the most of the scars was located within l0m from the center of the skyline corridor. These results should be useful information for forest managers and landowners to reduce residual stand damages and retain valuable timber volume from thinning treatments.
Keywords
tree-length harvesting system; HAM300; manual felling; cable yarding;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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