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Trends in Wood Quality for the British Columbia Coast and the United States, Pacific Northwest, Westside

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Two alternative methods of measuring wood quality are described--the index number approach and the hedonic approach. Indices of wood quality are constructed for the Vancouver Forest Region (VFR), 1925-80, the Vancouver Log Market (VLM), 1925-82 and the Pacific Northwest, West-side (PNW) log market, 1957-82. The general hypothesis that the quality of the wood supply on the British Columbia (BC) Coast has declined over time is confirmed. However, this decline proceeded at a decreasing rate between 1925 and 1970, and during the 1970s an increase in wood quality was measured. This increase was more pronounced for the VLM than for the VFR. Wood quality declined at a faster rate in the PNW than in B.C. from 1957 to 1982. On the VLM, most of the decline in wood quality, prior to 1957, was due to deterioration in the grade mix while between 1957 and 1970 changes in the species mix was the dominant factor. On the PNW log market, quality decline between 1957 and 1982 was entirely due to deterioration in the grade mix, the species mix showing some improvement during this period. For. Sci. 34(1):176-189.

Keywords: Log grade; index numbers; log markets

Document Type: Journal Article

Affiliations: Associate Professor, Department of Forest Resources Management, Faculty of Forestry, University of British Columbia, Vancouver, B.C.

Publication date: 1988-03-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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