Author： Maguire Douglas A. Hann David W.
Publisher： Society of American Foresters
ISSN： 0885-6095
Source： Western Journal of Applied Forestry, Vol.5, Iss.1, 1990-01, pp. : 5-8
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Abstract
A segmented polynomial taper equation for southwestern Oregon Douglas-fir (Pseudotsuga menziesii) predicts double bark thickness (dbt) at any point above breast height. Below breast height predictions assume conformity to a neiloid frustrum. The equations facilitate estimation of inside bark diameter (dib) given outside bark (dob) measurements. Bark volume and bark biomass can also be estimated when supplemented with existing dib taper equations developed for southwestern Oregon. West J. Appl. For. 5(1):5-8.
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