eq_biomass_manrique_2017: Biomass equations two Quercus species

In silviculture: Utility Functions for Forest Inventory and Silviculture

Biomass equations two Quercus species

Description

Allometric equations adjusted for Quercus petraea and Quercus pyrenaica in Palencia, Spain

Usage

eq_biomass_manrique_2017(
  species,
  component = "AGB",
  return_r2 = FALSE,
  return_rmse = 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., "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.
return_rmse	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 two species in this model: Quercus petraea and Quercus pyrenaica

The tree components include:

• stem: includes stem and the thickest branches

• medium branches

• thin branches

• AGB: total biomass, results of summing the previous three components

Value

A S7 list of parameters

See Also

silv_predict_biomass(), biomass_models, eq_biomass_montero_2005(), eq_biomass_dieguez_aranda_2009() eq_biomass_ruiz_peinado_2011(), eq_biomass_ruiz_peinado_2012(), eq_biomass_menendez_2022(), eq_biomass_cudjoe_2024()

Examples

## get model parameters for silv_predict_biomass
eq_biomass_manrique_2017("Quercus petraea", "AGB")

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