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Notes: Through-Bark Measurement of Grain Direction; Preliminary Results

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A method of estimating spiral grain in the tree stem by using sonic probes inserted a given distance apart and at different angles to the grain direction was studied. Results indicate that the device used, with some modifications, could be valuable in determining the degree of spiral grain in standing trees. Stem damage is minimal, in contrast to destructive sampling methods in use to date.

Keywords: Spiral grain; sound conduction

Document Type: News

Affiliations: Research Forest Products Technologist, Forest Products Laboratory, Forest Service, U S. Dept. of Agric., Madison, Wis.

Publication date: 1969-03-01

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

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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