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Tree and Stand Volumes Using Height-Accumulation and the Telescopic Spiegel-Relaskop

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The height-accumulation method was tested on a second-growth stand of Pseudotsuga menziesii (Mirb.) Franco in Oregon to estimate volume, surface area, and length using a newly developed telescopic Spiegel-Relaskop. Results compared favorably with measurements of the same trees taken with the highly accurate Barr & Stroud optical dendrometer. Computer programs were developed incorporating the height-accumulation method of measuring individual trees with the Bitterlich point sampling method to obtain volumes per acre and per stand. Forest Sci. 18:159-163.

Keywords: Douglas-fir; Pseudotsuga menziesii; measurement techniques

Document Type: Journal Article

Affiliations: Associate Professor, School of Forestry, Oregon State University, Corvallis

Publication date: June 1, 1972

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