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Notes: Estimating Wood Volumes for Douglas-fir and White Fir From Outside Bark Measurements

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The ratio of diameter inside bark to diameter outside bark (dib/dob) at first increases up the bole from breast height (bh) and then decreases toward the tip for Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and white fir (Abies concolor (Gord. & Glend.) Lindl. ex Hildebr.). This change in dib/dob equals 1 - [(dbhob - dbhib)/dob] [0.28/(1.28 - dob/dbhob)] and can be easily inserted into Grosenbaugh's STX program for processing optical dendrometer measurements. Forest Sci. 28:172-174.

Keywords: Abies concolor; Abies grandis; Pseudotsuga menziesii; bark measurement; local volume tables

Document Type: Miscellaneous

Affiliations: Principal Research Soil Scientist at Pacific Northwest Forest and Range Experiment Station, USDA Forest Service, Silviculture Laboratory, Bend, OR 97701

Publication date: March 1, 1982

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.

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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