Biomass equations for young Spanish plantations

Allometric equations for young (<30) plantations of 18 Spanish species including broadleaf and conifer species. Only aboveground biomass.

Usage

eq_biomass_menendez_2022(species, 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.

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.

Value

A S7 list of parameters

Details

There are 15 species in this model, including generic equations for Conifers, Deciduous broadleaves, and Evergreen broadleaves.

All the models measure only aboveground biomass.

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_manrique_2017(), eq_biomass_cudjoe_2024()

Examples

## get model parameters for silv_predict_biomass
eq_biomass_menendez_2022("Fagus sylvatica")
#> <silviculture::ModelBiomass>
#>  @ equation  : chr "menendez-2022"
#>  @ species   : chr "Fagus sylvatica"
#>  @ component : chr "AGB"
#>  @ expression:'data.frame':	1 obs. of  2 variables:
#>  .. $ expression: chr "0.0574 * ((rcd ** 2) * h) ** 0.8930"
#>  .. $ species   : chr "Fagus sylvatica"
#>  @ url       : chr "https://doi.org/10.1016/j.biombioe.2022.106453"
#>  @ obs       : chr "AGB is the aboveground dry biomass or aerial biomass (kg), RCD is the root-collar-diameter (cm), h is the total"| __truncated__
#>  @ params    :List of 5
#>  .. $ return_r2  : logi FALSE
#>  .. $ return_rmse: logi FALSE
#>  .. $ comp       : chr "agb"
#>  .. $ r2         : num 0.97
#>  .. $ rmse       : num 3.5