Skip to Main Content
Effects of bear damage on Douglas-fir lumber recoveryAuthor(s): Eini C. Lowell; Dennis Dykstra; George McFadden
Source: Western Journal of Applied Forestry. 25(2): 73-80
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
PDF: View PDF (3.78 MB)
DescriptionBear activily resulting in injury to Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) trees has been documented as early as the mid-1850s in the Pacific Northwest. The study reported in this article was designed to help managers decide whether the common practice of removing the damaged but potentially valuable butt section of the bottom log and leaving it in the woods is warranted. Thirty-four damaged and 28 undamaged trees were selected from three sites in western Washington where bear damage has been a persistent problem. Trees were felled and bucked into 16-ft lengths. The damaged trees in the sample had been injured at ages between 10 and 15 years at two sites and between 10 and 65 years at the third site. The primary scaling deductions were for ring and scar defects.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationLowell, Eini C.; Dykstra, Dennis; McFadden, George. 2009. Effects of bear damage on Douglas-fir lumber recovery. Western Journal of Applied Forestry. 25(2): 73-80.
Keywordsbear damage, Douglas-fir lumber recovery, log value
- Westside thinning and underplanting study in 50- to 55-year-old Douglas-fir and Douglas-fir/hemlock stands
- Black bear damage to northwestern conifers in California: a review
- Incorporation of genetic gain into growth projections of Douglas-Fir using ORGANON and the Forest Vegetation Simulator
XML: View XML