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Calculates mobilizable fuelwood potential (tonnes dry matter/year) from forest harvest residues and coppice biomass.

Usage

indicator_energy_fuelwood(
  units,
  volume_field = "volume",
  species_field = "species",
  harvest_rate = 0.02,
  residue_fraction = 0.3,
  coppice_area_field = NULL,
  column_name = "E1",
  lang = "en"
)

Arguments

units

sf object (POLYGON) of spatial units to assess

volume_field

Character. Column name containing standing volume (m³/ha). Default "volume".

species_field

Character. Column name containing species codes. Default "species".

harvest_rate

Numeric. Annual harvest rate (fraction of volume). Default 0.02 (2 percent/year).

residue_fraction

Numeric. Fraction of harvest available as residues. Default 0.3 (30 percent).

coppice_area_field

Character. Column name for coppice area fraction. Optional.

column_name

Character. Name for output column. Default "E1".

lang

Character. Message language. Default "en".

Value

sf object with added columns: E1 (fuelwood potential tonnes DM/yr), E1_residues, E1_coppice