eq_biomass_montero_2005: Biomass equations for Spanish species

In silviculture: Utility Functions for Forest Inventory and Silviculture

Biomass equations for Spanish species

Description

Allometric equations adjusted for Spanish species

Usage

eq_biomass_montero_2005(species, component = "stem", return_r2 = FALSE)

Arguments

species	A character string specifying the scientific name of the tree species. It can be a column name if all the species are included in this model. See Details for available species.
component	A character string specifying the tree component for biomass calculation (e.g., "tree", "stem", "branches"). See Details.
return_r2	A logical value. If TRUE, the function returns the root mean squared error (RMSE) of the selected model instead of the biomass value.

Details

There are 35 species included in the model.

The tree components are divided into groups, and any of them can be introduced in the component argument:

• AGB: all aboveground biomass components

• BGB: all belowground biomass compoponents

• tree or all: total tree biomass includying AGB and BGB

Then we have the second group of components, which are related to tree groups:

• stem: includes the stem and bark

• branches: includes all branches

• roots: includes the roots (same as BGB)

Finally, we have the last level, which includes tree components (not all of them are available for all species): stem, bark, thick branches (>7cm), medium branches (2-7cm), thin branches (0.5-2cm), leaves (include needles), roots. In some species, there's "stem and thick branches", instead of two groups.

Users can check the list of supported species and their corresponding components in biomass_models.

Value

A S7 list of parameters

See Also

silv_predict_biomass(), biomass_models, eq_biomass_dieguez_aranda_2009() eq_biomass_ruiz_peinado_2011(), eq_biomass_ruiz_peinado_2012(), eq_biomass_manrique_2017(), eq_biomass_menendez_2022(), eq_biomass_cudjoe_2024()

Examples

## get model parameters for silv_predict_biomass
eq_biomass_montero_2005("Pinus pinaster", "AGB")

silviculture documentation built on Nov. 5, 2025, 7:13 p.m.