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Multiplies basal area by height and a form factor that accounts for taper from the cylinder assumption.
Stem volume
Basal area = pi x (DBH/2)^2; volume = basal area x height x form factor, with 0.5 a common default for conifers
The ratio of true stem volume to the volume of a cylinder of the same diameter and height, typically 0.4 to 0.55.
No. Stem volume covers the merchantable bole; branch and root biomass need separate allometric equations.