agb.dbhmodel: Calculates biomass from density and diameter, without height.

In forestgeo/ctfs: Tools for the Analysis of Forest Dynamics

Description

Calculates biomass from density and diameter, without height. Requires four parameters, following Chave (2005).

The parameters can be changed, but the formula cannot be. Returns a vector of biomass as long as vector of dbh submitted.

This is called by Chave.AGB in the standard calculation of biomass for CTFS R tables.

Usage

agb.dbhmodel(dbh, density, param)

Arguments

dbh	Stem diameter, usually at breast height (see data dictionary at http://ctfs.si.edu/Public/DataDict/data_dict.php).

Examples

## Not run: 
agb.dbhmodel(
  dbh = c(1, 1, 2),
  density = c(.6, .6, .5),
  param = c(-1.499, 2.148, 0.207, -0.0281)
) 

## End(Not run)

forestgeo/ctfs documentation built on May 3, 2019, 6:44 p.m.