| biomass.birch.M1988 {sitreeE} | R Documentation |
Marklund's biomass equations
Description
Implements Marklund's (1988) biomass equations for above-ground biomass and Petersson and Ståhl (2006) for below-ground biomass.
Usage
biomass.spruce.M1988(dbh.cm, H.m)
biomass.pine.M1988(dbh.cm, H.m)
biomass.birch.M1988(dbh.cm, H.m)
Arguments
dbh.cm |
A vector with the dbh (diameter at breast height) of the trees, in cm. |
H.m |
A vector with the heights of the trees, in meters. |
Value
It returns a data.frame with the following biomass components in kg: living.branches, dead.branches, stem.wood, stump.roots, bark, usoil, rot1, rot2, and foliage.
Author(s)
Clara Anton Fernandez caf@nibio.no
References
Marklund, L. G. 1988. “Biomassafunktioner för tall, gran och björk i Sverige [Biomass functions for pine, spruce and birch in Sweden].” Report 45. Umeå, Sweden: Swedish University of Agricultural Sciences. Department of Forest Survey. Petersson, Hans, and Göran Ståhl. 2006. “Functions for Below-Ground Biomass of Pinus Sylvestris, Picea Abies, Betula Pendula and Betula Pubescens in Sweden.” Scandinavian Journal of Forest Research 21 (S7): 84–93.
Examples
biomass.spruce.M1988(dbh.cm = c(10, 20), H.m = c(8, 12))