sitreeE (version 0.0-10)

biomass.birch.M1988: 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)

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.

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.

Author

Clara Anton Fernandez

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))