BDATVOLDHOR: Calculate (coarse) wood volume under bark of a tree up to...

In rBDAT: Implementation of BDAT Tree Taper Fortran Functions

Calculate (coarse) wood volume under bark of a tree up to given diameter

Description

BDAT-Function to get (coarse) wood volume under bark up to a given diameter of one or many trees.

Usage

BDATVOLDHOR(BDATArtNr, D1, H1 = 1.3, D2 = 0, H2 = 0, H, DHGrz = 7, SekLng = 2)

Arguments

BDATArtNr	numeric vector of species code; see getSpeciesCode.
D1	first measured diameter of tree [cm], e.g. diameter in breast height.
H1	measurement height of D1, [m].
D2	second measured diameter of tree, see buildTree for details on how to specify different taper forms
H2	measurement height of D2, see buildTree for details on how to specify different taper forms
H	total tree height [m]
DHGrz	diameter inside bark up to which volume should be calculated
SekLng	length of section over which the integral of taper form should be applied, defaults to 2.0m.

Details

Volume is calculated using BDAT Fortran routines. In particular, BDATVOLDHOR internally calls BDATVOLABOR with parameter A = 0, i.e. volume is calculated from forest floor up to given diameter, which itself is transformed into height B.

Value

vector of same length as input variables transformed into a data.frame, returning the required volume in cubic meter.

See Also

BDATVOLDHMR for BDAT routine calculating volume over bark, getVolume for a function with a convenient english name, more options and including a bark switch.

Examples

## simple call of function, with all parameters
BDATVOLDHOR(1, 30, 1.3, 0, 0, 25, 7, 2.0)

## same using variables
BDATArtNr <- 1
D1 <- 30
H1 <- 1.3
D2 <- 0
H2 <- 0
H <- 25
DHGrz <- 7
BDATVOLDHOR(BDATArtNr = BDATArtNr, D1 = D1, H1 = H1, D2 = D2, H2 = H2, H = H, DHGrz = DHGrz)

## calling with a subset of tree characteristics
## german species names, abbreviated
BDATVOLDHOR(getSpeciesCode(c("Fi", "Bu")), 30, 0, 0, 0, H = 25, DHGrz = 7)
## english abbreviation
BDATVOLDHOR(getSpeciesCode(c("NS", "BE")), 30, 0, 0, 0, H = 25, DHGrz = 7)

rBDAT documentation built on May 29, 2024, 3:08 a.m.