Tree volume equations and tables from dendrometer measurements: I. Tree volume equations
      from measurements taken with a Barr and Stroud optical dendrometer

Wensel, L

Tree volume equations and tables from dendrometer measurements: I. Tree volume equations from measurements taken with a Barr and Stroud optical dendrometer

Author

Lee C. Wensel

Author Affiliations

Lee C. Wensel was Assistant Professor of Forestry, University of California, Berkeley.

Publication Information

Hilgardia 41(4):55-64. DOI:10.3733/hilg.v41n04p055. September 1971.

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Abstract

In the first paper, the procedures are developed to compute tree volume equations from field measurements taken with a Barr and Stroud optical dendrometer. The computer programs used to perform all of the calculations are briefly described. The volume equations developed for young growth Sierra redwood are also reported, together with a discussion of the validity of these equations.

In the second paper, tree volume tables are given for young growth Sierra redwood based upon measurements taken at Mountain Home State Forest. Standard and local volume tables are given for cubic feet and Scribner board feet, together with the 95 per cent confidence intervals for the volumes in these tables. The standard table for cubic feet is based upon total height while for Scribner board feet tables are given for both merchantable height (6-inch top) and total height.

Literature Cited

Bell J. F., Groman W. A. A field test of the accuracy of the Barr and Stroud Type FP-12 optical dendrometer. Forestry Chronicle. 1971. 47Canadian Institute of Forestry. p. 69-74.

Bruce D., Schumacher F. X. Forest Mensuration. 1950. New York: McGraw-Hill Book Company.

Draper N. R., Smith H. Applied regression analysis. 1966. New York: John Wiley and Sons, Inc.

Grosenbaugh L. R. Optical dendrometers for out of reach diameters: a conspectus and some new theory. Forest Science Mono. 1963. 4: Wash., D.C.: Society of American Foresters.

Grosenbaugh L. R. STX—Fortran 4 program for estimates of tree populations from 3P sample-tree-measurements. 1967. Berkeley: U. S. Forest Service. Research Paper PSW-13, revised

Meyer H. A. A mathematical expression for height curves. Jour of Forestry. 1940. 38 Wash., D.C.: Society of American Foresters. p. 415-20.

Naus J. I. The distribution of the logarithm of the sum of two log-normal variates. Jour. of the American Statistical Assn. 1969. 64(326):655-59. DOI: 10.1080/01621459.1969.10501004 [CrossRef]

Also in this issue:

Tree volume equations and tables from dendrometer measurements: II. Young growth gross volume tables for Sierra redwood [Sequoia gigantea (Lindl.) Decne]