diameterIncrementTree: Calculates: Five-year diameter increment of a single tree (mm...

In hansoleorka/skogR: Norske skogfunksjoner (Norwegian Forestry Functions)

Calculates: Five-year diameter increment of a single tree (mm per 5 yr).

Description

Ole Martin Bollandsås 2007. Manuscript USED IN MATRIX MODEL

Usage

diameterIncrementTree(speciesCode, d, BAL, SI, BA, region, LAT)

Arguments

speciesCode	species code (1=spruce, 2= pine, 3= brich)
d	Diameter of the single tree at breast height (cm)
BAL	Sum grunnflate på trær større enn treet man beregner for.
SI	Site index of spruce (H40-system m.)
BA	Stand basal area (m2ha-1)
region	Dummy variable for region. =1 –> County nr >=10
LAT	latitude

Details

?

Value

V Volume including bark (m3/ha)

Author(s)

Hans Ole Ørka [e-mail]

References

Vestjordet 1959,Brantseg 1959,Næsset 1994a, Næsset 1995a,b

Examples

load(file="data/skogRtrees.rda")
attach(skogRtrees)
#Compute BAL
BAL <- c()
for(i in c(1:length(ba))){
     BAL[i] <- sum(ba[ba>ba[i]])
}
BA <- sum(ba)*(10000/250)
region = 5
LAT = 60.8
SI = 17
diameterIncrementTree(sp,d,BAL,SI,BA,region,LAT)

hansoleorka/skogR documentation built on March 8, 2024, 7:47 p.m.