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Publication Information

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Title: Use of a bark thickness—tree diameter relationship for estimating past diameters of ponderosa pine trees.

Author: Johnson, Floyd A.;

Date: 1956

Source: PNW Old Series Research Notes No. 126, p. 1-3

Publication Series: Research Note (RN)

Description: Whenever past diameters of ponderosa pine trees are required for growth studies or for other purposes they can be estimated with these formulas:
(1) trees 10 inches and over in diameter at breast height
Dp=Dn - Wg
(1.121) Where Dp=past diameter outside bark 4.5 feet above ground
Dn=present diameter outside bark 4.5 feet above ground
Wg=diameter growth in wood for specified number of years as measured on an increment core.
(2) trees less than 10 inches in diameter at breast height Dp=Dn - Wg
(1.245)

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.
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Citation:


Johnson, Floyd A. 1956. Use of a bark thickness—tree diameter relationship for estimating past diameters of ponderosa pine trees. PNW Old Series Research Notes No. 126, p. 1-3

 


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