shape {dendrometry}

The shape coefficient

Description

The shape coefficient of the tree is the ratio of the actual volume of the tree to the volume of a cylinder having as base the surface of the section at 1.3 m (or a given breast height) and as length, the height (at bole level) of the tree.

Usage

shape(volume, height, dbh, basal = NULL)

Arguments

volume

numeric, tree real volume.

height

numeric, tree height.

dbh

numeric, diameter at breast height (DBH).

basal

numeric, basal area. Is used when dbh is not specified.

Value

The shape coefficient.

See Also

volume, for tree real volume.

Examples

shape(volume = 10000, 11, dbh = 40)
shape(volume = 10000, 11, 40)
shape(volume = 10000, 11, basal = 2256.637)
## Bellow gives warning
shape(volume = 10000, height = 11, dbh = 40, basal = 2256.637)