Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): L. Christian; A. Brackley
    Date: 2007
    Source: Western Journal of Applied Forestry. 22(2): 142-147
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (1002 KB)


    This study examines production rates and costs for felling and helicopter yarding on eight units harvested in accordance with ecologically based silvicultural prescriptions. The units represent five levels of basal area retention. The levels of retention had irregular spatial arrangements caused by gaps and clumps that ranged from 0 percent retention (clearcut) to 75 percent of basal area retained. Turn time, as adjusted to a standardized distance, and turn weight were used as measures of productivity. There were statistically significant differences in adjusted turn time, depending on the treatment. Areas with higher levels of removal tended to have lower adjusted turn times. Average weighted cost per thousand board feet harvested was $322. Regardless of differences in turn time or lifted weight, helicopter logging is an expensive method of harvesting timber and should only be applied to areas that support stands with significant volumes of high-quality timber.

    Publication Notes

    • Visit PNW's Publication Request Page to request a hard copy of this publication.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Christian, L.; Brackley, A. 2007. Helicopter logging productivity on harvesting operations in southeast Alaska, using ecologically based silvicultural prescriptions. Western Journal of Applied Forestry. 22(2): 142-147


    Logging costs, partial cut, yarding, Tongass

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page