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http://dx.doi.org/10.14578/jkfs.2019.108.1.67

Characteristics of Soil Disturbance Caused by Passages of Harvester and Forwarder in Cut-to-Length Harvesting Operations  

Han, Sang-Kyun (Department of Forestry, Korea National College of Agriculture and Fisheries)
Lee, Kyeong-Cheol (Department of Forestry, Korea National College of Agriculture and Fisheries)
Oh, Jae-Heun (Forest Technology and Management Research Center, National Institute of Forest Science)
Mun, Ho-Seong (Forest Technology and Management Research Center, National Institute of Forest Science)
Lee, Sang-Tae (Forest Technology and Management Research Center, National Institute of Forest Science)
Choi, Yun-Sung (Forest Technology and Management Research Center, National Institute of Forest Science)
Choi, Byoung-Koo (Division of Forest Science, Kangwon National University)
Publication Information
Journal of Korean Society of Forest Science / v.108, no.1, 2019 , pp. 67-76 More about this Journal
Abstract
With an increasing demand of timber production, the use of heavy machinery in forest management has significantly increased, causing the changes of soil physical properties and the decline of long-term site productivity. This study was conducted to evaluate the effects of logging slash (non-slash, slash $7.3kg/m^2$, and slash $11.5kg/m^2$) and machine passes(harvester 1 pass and forwarder 1 to 10 passes) on soil physical properties at 10 cm, 20 cm and 30 cm soil depths in harvester and forwarder operations and also to estimate the degree of soil surface disturbance. The results indicated that soil bulk density in the non-slash treatment site increased 10 %~29 % (25~139 % in soil penetration resistance) at all soil depths, compared with the slash treatment site(slash $11.5kg/m^2$). Therefore, the creation of a slash mat could be an effective way to minimize the changes of soil physical properties. In addition, 92 % of total soil compaction in slash treatment site was created within harvester 1 pass and forwarder 5 passes. In non-slash treatment site, 84 % of total soil compaction was created within first harvester and forwarder passes. The results showed that slash treatment was effective to reduce soil compaction caused by machine passes and also it is necessary to create designed forwarding trails for minimizing soil compaction area at timber harvesting sites.
Keywords
forwarder; harvester; slash; soil bulk density; soil compaction; soil disturbance; soil penetration resistance;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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