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    • Tree-Ring Research, Volume 67 (2011)
    • Tree-Ring Research, Volume 67, Issue 2 (Jul 2011)
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    Preventing Bark-Caused Increment Borer Jams: A Modified Technique For Core Extraction

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    Author
    Tyminski, William P.
    Affiliation
    University of North Carolina at Greensboro, Carolina Tree-Ring Science Laboratory, Department of Geography
    Issue Date
    2011-07
    Keywords
    Dendrochronology
    Tree Rings
    Increment Borer
    Jam
    Thick Bark
    
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    Rights
    Copyright © Tree-Ring Society. All rights reserved.
    Collection Information
    This item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org.
    Publisher
    Tree-Ring Society
    Journal
    Tree-Ring Research
    Citation
    Tyminski, W.P., 2011. Preventing bark-caused increment borer jams: A modified technique for core extraction. Tree-Ring Research 67(2):123-126.
    Abstract
    When coring thick-barked trees, increment cores often become compressed and jammed inside the narrow region of the borer shaft. These jams can be problematic for two reasons: first, it often leaves the core unusable; second, the jam may be so tightly compressed in the borer that removal is difficult, especially in the field. Although procedures to evacuate these jams are documented in the literature, methods of prevention are not. Here, a modified manual method of increment boring that can reduce the likelihood of jams and, in addition, decrease the number of deformed core samples is described. Traditional and modified boring methods were randomly assigned to 40 Douglas-fir trees (80 cores) at a research site along the Oregon coast. Results show that jams were associated with traditional boring over six times more than with the proposed modified technique.
    ISSN
    2162-4585
    1536-1098
    Additional Links
    http://www.treeringsociety.org
    Collections
    Tree-Ring Research, Volume 67, Issue 2 (Jul 2011)

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