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Time consumption and productivity of a forwarder operating on a slope in a cut-to-length harvest system in a Pinus radiata D. Don pine plantation

Author

Listed:
  • Martin STRANDGARD

    (Forest Industries Research Centre, University of the Sunshine Coast, Richmond, Australia)

  • Rick MITCHELL

    (Forest Industries Research Centre, University of the Sunshine Coast, Albany, Australia)

  • Mauricio ACUNA

    (Forest Industries Research Centre, University of the Sunshine Coast, Hobart, Australia)

Abstract

Time consumption and productivity of a Valmet 890.3 8 wheel forwarder were evaluated on an Australian radiata pine clearfell site with a slope of 21 to 45% (12 to 24°). Cycle time was significantly related to extraction distance. Productivity was significantly related to extraction distance and load volume. Slope did not have a significant effect on cycle time or productivity. Productivity was considerably greater than that for many published studies, which was likely to have been the result of many factors at the study site affecting load sizes and cycle times, including the large load capacity of the studied forwarder, larger mean log volumes, larger log volumes per loading stop, fewer log assortments, potentially larger forwarder grapple volume capacity, log lengths suited to efficient loading and higher travel speeds.

Suggested Citation

  • Martin STRANDGARD & Rick MITCHELL & Mauricio ACUNA, 2017. "Time consumption and productivity of a forwarder operating on a slope in a cut-to-length harvest system in a Pinus radiata D. Don pine plantation," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 63(7), pages 324-330.
    • Handle: RePEc:caa:jnljfs:v:63:y:2017:i:7:id:10-2017-jfs
    DOI: 10.17221/10/2017-JFS
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    Citations

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    Cited by:

    1. Simon Berg & Back Tomas Ersson & Jussi Manner, 2019. "Distance driven and driving speed when forwarding during final felling in Central Sweden," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 65(5), pages 183-194.
    2. Jussi Manner & Back Tomas Ersson, 2023. "A pilot study of continuous cover forestry in boreal forests: Do remaining trees affect forwarder productivity?," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 69(7), pages 317-323.
    3. Jussi Manner & Simon Berg & Martin Englund & Back Tomas Ersson & Anders Mörk, 2020. "Innovative productivity improvements in forest operations: a comparative study of the Assortment Grapple using a machine simulator," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 66(11), pages 443-451.

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