spuRs (version 2.0.0)

vol.m3: Function to compute the volume of a tree bole assuming a particular shape.

Description

This function computes the volume of a tree bole given its basal diameter and length, assuming that the bole is a frustum of a geometric solid.

Usage

vol.m3(dbh.cm, height.m, multiplier = 0.5)

Arguments

dbh.cm

basal diameter in cm.

height.m

height in m.

multiplier

shape, expressed as a multiplier.

Value

The volume is returned, in units of cubic metres.

Details

Commonly-used shapes are:

• 1/3 conoid
• 1/2 second-degree parabaloid
• 1 cylinder

Examples

vol.m3(30, 30)
vol.m3(30, 30, 1)