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Effect of Fire Charring on Condition of Ponderosa Pine Trees in Oregon as Measured by Longitudinal Compression Strength

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Abstract:

The ability to assess wood quality using longitudinal compression strength (LCS) of plugs removed from along the length of a tree stem was assessed in ponderosa pine damaged to varying degrees 4 years earlier in a prescribed burn. LCS has been used elsewhere to estimate residual strength of utility poles and might be a simple method for assessing wood quality in standing trees. The degree of stem char on fire-killed trees had a significant effect on LCS values. LCS values of plugs from charred portions of fire-killed ponderosa pines were greater than those from uncharred portions of fire-killed ponderosa pine trees. LCS might be a useful tool for forest managers assessing the remaining flexural properties of standing dead timber after fires.

Keywords: deterioration; fire; fungal decay; longitudinal compression strength; ponderosa pine

Document Type: Research Article

Publication date: January 1, 2009

More about this publication?
  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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