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    Author(s): John Klepac; Dana Mitchell
    Date: 2018
    Source: In: Proceedings of the 41st Annual Meeting of the Council on Forest Engineering: Revolutionary Traditions, Innovative Industries; July 15-18, 2018. Williamsburg, VA
    Publication Series: Scientific Journal (JRNL)
    Station: Southern Research Station
    PDF: Download Publication  (331.0 KB)

    Description

    A conventional ground-based harvesting system was evaluated while implementing a shelterwood with reserves silvicultural prescription in a hardwood stand on the George Washington and Jefferson National Forests. The 16.3 acre study unit consisted predominately of chestnut oak (Quercus montana), scarlet oak (Quercus coccinea), and white oak (Quercus alba). Trees 6 inches Diameter at breast height (Dbh) and larger were measured in two felling plots. The mean Dbh was 11.8 inches with an average of 154 trees per acre (TPA). Machines evaluated included a drive-to-tree feller-buncher equipped with a saw head and a grapple skidder. Preliminary analyses revealed the feller-buncher averaged 52.8 green tons/Productive Machine Hour (gt/PMH), while the skidder averaged of 37.6 gt/PMH. Machine rate analyses resulted in an hourly cost of $150.44/PMH for the feller-buncher and $158.63/PMH for the skidder. Unit costs for the feller-buncher ranged from $2.50/gt to $3.44/gt and $4.22/gt for the skidder.

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    Citation

    Klepac, John; Mitchell, Dana. 2018. Evaluation of a conventional harvesting system for a hardwood restoration project on the George Washington and Jefferson National Forests. In:  Proceedings of the 41st Annual Meeting of the Council on Forest Engineering: Revolutionary Traditions, Innovative Industries; July 15-18, 2018. Williamsburg, VA. 9 p.

    Keywords

    harvesting, hardwood harvesting, ground-based system, feller-buncher, skidder

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