Optimal road spacing of cable yarding using a tower yarder in Southern Austria

Mohammad R Ghaffariyan; Karl Stampfer; J Sessions

doi:10.1007/s10342-009-0346-7

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Optimal road spacing of cable yarding using a tower yarder in Southern Austria

Journal article

Peer reviewed

Optimal road spacing of cable yarding using a tower yarder in Southern Austria

Mohammad R Ghaffariyan, Karl Stampfer and J Sessions

European Journal of Forest Research, Vol.129(3), pp.409-416

2010

DOI: https://doi.org/10.1007/s10342-009-0346-7

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Abstract

Forestry Sciences

yarding

production

cost

optimum road spacing

road density

Cable yarding systems are widely used in mountainous forests of Austria. The goal of this paper is to determine optimal road spacing (ORS) of yarding operations by tower yarder in Styria to help logging planners minimize logging costs. A total of 591 working cycles were used to develop the multiple regression model using stepwise method to predict yarding time per cycle. The production and cost in whole tree uphill yarding were 6.70 m3/PSH and 27.60 Euro/m3, respectively. The roading, yarding and installation cost per cubic meter were computed for different yarding distances and graphed as a function of road spacing. The minimum total cost and ORS were 42.88 Euro/m3 and 261 m, respectively for one-way yarding. For two-way yarding, the minimum estimated total cost, ORS and optimal road density would be 38.48 Euro/m3, 373 m and 26.8 m/ha, respectively. The results showed increasing harvested volume decreases ORS and that increased roading cost increases ORS. The load volume has a significant effect on ORS.

Details

Title: Optimal road spacing of cable yarding using a tower yarder in Southern Austria
Authors: Mohammad R Ghaffariyan (Author) - University of Natural Resources and Applied Life Sciences, Austria
Karl Stampfer (Author) - University of Natural Resources and Applied Life Sciences, Austria
J Sessions (Author) - Oregon State University, United States
Publication details: European Journal of Forest Research, Vol.129(3), pp.409-416
Publisher: Springer
Date published: 2010
DOI: 10.1007/s10342-009-0346-7
ISSN: 1612-4669
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre; Forest Research Institute
Language: English
Record Identifier: 99447755902621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Forestry

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