silv_tree_basal_area: Calculates Basal Area

In silviculture: Utility Functions for Forest Inventory and Silviculture

Calculates Basal Area

Description

Calculates Basal Area in square meters.

Usage

silv_tree_basal_area(diameter, units = "cm")

Arguments

diameter	Numeric vector of diameters or diameter classes
units	The units of the diameter (one of mm, cm, dm, or m)

Details

The function uses the next formula:

g = \frac{\pi}{40000} \cdot D^2

where g is the basal area in m^2 of one tree, and D is the diameter in cm.

If you want to calculate the basal area for a group of trees (e.g. per hectares), please use silv_stand_basal_area()

Value

A numeric vector

See Also

silv_stand_basal_area()

Examples

## calculate individual basal area
silv_tree_basal_area(c(23, 11, 43.5, 94))

silviculture documentation built on Nov. 5, 2025, 7:13 p.m.