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Publication Information

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Title: Bark factors for Douglas-fir.

Author: Johnson, Floyd.;

Date: 1966

Source: Res. Note PNW-RN-034. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 4 p

Publication Series: Miscellaneous Publication

Description: Recent emphasis on the measurement of upper stem tree diameters with optical dendrometers has directed attention to procedures for converting these outside-bark diameters to inside-bark diameters. One procedure that has been used requires an assumption that the ratio of diameter inside bark to diameter outside bark (henceforth called bark factor) remains the same up the stem. If this is true, bark factor measured at some reachable point on the lower stem (e.g., 4.5 feet) could be applied to diameter outside bark at any point on the upper stem to estimate diameter inside bark at that point.

Keywords: Bark factor, inside-bark diameter

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

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Citation:


Johnson, Floyd. 1966. Bark factors for Douglas-fir. Res. Note PNW-RN-034. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 4 p

 


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