Calculate Tree Biomass — silv_predict_biomass • silviculture

Computes the biomass of a tree species using species-specific allometric equations (in kg). Currently, only equations for Spain are available.

Usage

silv_predict_biomass(
  diameter = NULL,
  height = NULL,
  model,
  ntrees = NULL,
  quiet = FALSE
)

Arguments

diameter: A numeric vector of tree diameters (in cm).
height: A numeric vector of tree heights (in m).
model: A function. A function with the structure eq_biomass_*() with additional arguments depending on the model used.
ntrees: An optional numeric value indicating the number of trees in this diameter-height class. Defaults to 1 if NULL.
quiet: A logical value. If TRUE, suppresses any informational messages.

Value

A numeric vector

Details

The function estimates biomass using validated allometric models available in the dataset biomass_models. The available models include:

eq_biomass_ruiz_peinado_2011(): Developed for softwood species in Spain.
eq_biomass_ruiz_peinado_2012(): Developed for hardwood species in Spain.

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

If you would like to suggest additional models, please open a new issue on GitHub.

See also

eq_biomass_ruiz_peinado_2011(), eq_biomass_ruiz_peinado_2012(), biomass_models

Examples

# Calculate biomass for a single tree
silv_predict_biomass(
  diameter = 45,
  height   = 22,
  model    = eq_biomass_ruiz_peinado_2011("Pinus pinaster")
)
#> ! Cite this model using <https://doi.org/10.5424/fs/2011201-11643>
#> ℹ Diameter is assumed to in centimeters, and height is assumed to be in meters
#> [1] 589.1237