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    Author(s): Ralph E. Thomas
    Date: 2012
    Source: Forest Products Journal. 61(8): 656-663.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: View PDF  (316.4 KB)

    Description

    As hardwood trees grow and develop, surface defects such as limb stubs and wounds are overgrown and encapsulated into the tree. Evidence of these defects can remain on the tree's surface for decades and in many instances for the life of the tree. The location and severity of internal defects dictate the quality and value of products that can be obtained from logs. Thus, log surface defect indicators such as log diameter at defect and surface indicator width, length, and rise provide a viable means of estimating the location and severity of internal defects. Evaluation of white oak (Quercus alba) log defects revealed that good correlations exist between external indicators and internal features for most severe defect types. Weaker correlations were observed with less severe defect types, such as bark distortions and adventitious knots.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Thomas, Ralph E. 2012. Predicting internal white oak (Quercus alba) log defect features using surface defect indicator measurements. Forest Products Journal. 61(8): 656-663.

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