FuruVol: Volume for the Main Species in Norway

Description Usage Arguments Value Author(s) References Examples

View source: R/FuruVol.R

Description

Calculates tree volume for Scots pine (FuruVol, and FuruVolV for the west coast), Spruce (GranVol, and GranVolV for the west coast), hardwoods (LauvVol), and Sitka spruce (SitkaVol) under Norwegian conditions following Braastad (1966), Brantseg(1967), Vestjordet (1967).

Usage

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FuruVol(dbh, trh, bark, enhet)
FuruVolV(dbh, trh, bark, enhet)
GranVol(dbh, trh, bark, enhet)
GranVolV(dbh, trh, bark, enhet)
LauvVol(tsl, dbh, trh, bark, enhet)
SitkaVol(dbh, trh, bark, enhet) 

Arguments

dbh

diameter at breast height in mm

trh

tree height in dm

bark

'ub' without bark, 'mb' with bark

enhet

units for the output. 'l' for volume in liters, and 'cm' for volume in cubic meters

tsl

tree species

Value

A vector with the individual tree volumes.

Author(s)

Clara Anton Fernandez [email protected]

References

Braastad, H. 1966 Volumtabeller for bjørk [Volume tables for birch]. Meddelelser fra Det norske Skogforsøksvesen 21, 23-–78.

Brantseg, A. 1967 Furu sønnafjells. Kubering av stående skog. Funksjoner og tabeller [Volume functions and tables for Scots pine. South Norway]. Meddelelser fra Det norske Skogforsøksvesen 22, 695–-739.

Vestjordet, E. 1967 Funksjoner og tabeller for kubering av stående gran [Functions and tables for volume of standing trees. Norway spruce].” Meddelelser fra Det norske Skogforsøksvesen. Ås, Norway: Norwegian Forest and Landscape Institute.

Examples

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FuruVol (dbh = 80, trh = 120, bark = 'ub', enhet = 'l') 
FuruVolV(dbh = 80, trh = 120, bark = 'ub', enhet = 'l')
GranVol(dbh = c(80, 85), trh = c(120, 140), bark = 'ub', enhet = 'l')
GranVolV(dbh = 80, trh = 120, bark = 'ub', enhet = 'l')
LauvVol(tsl = c('30', '31'), dbh = c(80, 85), trh = c(80, 90),
  bark = 'mb', enhet = 'l')
SitkaVol(dbh = 80, trh = 120, bark = 'ub', enhet = 'l')

sitree documentation built on June 1, 2018, 5:06 p.m.