getSegVol: get volume of tree segment

In frumentum/rBDATPRO: Imports functions of windows programm BDAT in R

Description

This function calculates the volume of a tree segment given species, diameter, height, beginning and end height of the segment. One can choose if bark should be included or excluded via the boolean parameter bark, which will include bark if it is set to TRUE.

Usage

getSegVol(sp, d, h, A, B, H1 = 1.3, D2 = 0, H2 = 0, SekLng = 0.1,
  VolABmR = 0, VolABoR = 0, bark = TRUE)

Arguments

sp	species code from BDAT
d	diameter in breast height (dbh) from tree
h	height of tree
A	lower height A of segment AB for which volume is required
B	upper height B of segment AB for which volume is required
H1	height where d was measured; default is 1.3[m] for dbh
D2	diameter at second height H2; if D2 = 0 (default) taper form from the first german NFI ('Bundeswaldinventur I') are used
H2	measuring height of D2, default is 0
bark	boolean, if TRUE volume including bark is calculated (default)
SegLen	segment length for calculating the volume

Details

Strictly speaking getSegVol is a wrapper function. It loads the fortran subroutine BDATVOLABMR or BDATDVOLABOR (depending on whether or not bark is set to TRUE or FALSE) within a call of loadBDAT.

Value

volume with or without bark of given segment AB in cubic meter

Examples

getSegVol(sp=1, d=30, h=40, bark = T)

frumentum/rBDATPRO documentation built on May 28, 2019, 2:53 p.m.