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    Author(s): Amanda H. Lang; Shawn A. Baker; W. Dale Greene; Glen E. Murphy
    Date: 2010
    Source: International Journal of Forest Engineering 21(1):7-11
    Publication Series: Scientific Journal (JRNL)
    Station: Southern Research Station
    PDF: Download Publication  (2.24 MB)


    We compared value recovery of a modified treelength (MTL) logging system that measures product diameter and length using a Waratah 626 harvester head to that of a treelength (TL) system that estimates dimensions. A field test compared the actual value cut to the maximum potential value suggested by the log bucking optimization program Assessment of Value by Individual Stems (AVIS) for 25 felled trees on each of three sites for two loggers. One half of each site was harvested with a TL crew and the other half with a MTL crew. ANOVA on individual stems using site as a blocking factor showed significant differences between TL and MTL, with TL recovering 80.3% and MTL recovering 73.7% of total value after downgrades.

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    Lang, Amanda H.; Baker, Shawn A.; Greene, W. Dale; Murphy, Glen E. 2010. Individual stem value recovery of modified and conventional tree-length systems in the southeastern United States. International Journal of Forest Engineering 21(1):7-11.


    Value recovery, logging, forest products

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