species_values | R Documentation |
Functions to calculate attributes of a forest
object by species or to extract species parameters from a species parameter table (SpParamsMED
).
species_basalArea(x, SpParams)
species_cover(x, SpParams)
species_density(x, SpParams)
species_foliarBiomass(x, SpParams, gdd = NA_real_)
species_fuelLoading(x, SpParams, gdd = NA_real_, includeDead = TRUE)
species_LAI(x, SpParams, gdd = NA_real_, bounded = TRUE)
species_characterParameter(species, SpParams, parName)
species_parameter(
species,
SpParams,
parName,
fillMissing = TRUE,
fillWithGenus = TRUE
)
x |
An object of class |
SpParams |
A data frame with species parameters (see |
gdd |
Growth degree days (to account for leaf phenology effects). |
includeDead |
A flag to indicate that standing dead fuels (dead branches) are included. |
bounded |
A boolean flag to indicate that extreme values should be prevented (maximum tree LAI = 7 and maximum shrub LAI = 3) |
species |
A character vector of species names. |
parName |
A string with a parameter name. |
fillMissing |
A boolean flag to try imputation on missing values. |
fillWithGenus |
A boolean flag to try imputation of missing values using genus values. |
A vector with values for each species in SpParams
:
species_basalArea
: Species basal area (m2/ha).
species_cover
: Shrub cover (in percent).
species_density
: Plant density (ind/ha). Tree density is directly taken from the forest object, while the shrub density is estimated from cover and height by calculating the area of a single individual.
species_foliarBiomass
: Standing biomass of leaves (in kg/m2).
species_fuel
: Fine fuel load (in kg/m2).
species_LAI
: Leaf area index (m2/m2).
species_phytovolume
: Shrub phytovolume (m3/m2).
species_parameter
: A numeric vector with the parameter values of each input species.
species_characterParameter
: A character vector with the parameter values of each input species.
Miquel De Cáceres Ainsa, CREAF
spwb
, forest
, plant_basalArea
, summary.forest
# Default species parameterization
data(SpParamsMED)
# Load example plot
data(exampleforest)
# Species basal area in the forest plot
species_basalArea(exampleforest, SpParamsMED)
# Value of parameter "Psi_Extract" for two species
species_parameter(c("Pinus halepensis", "Quercus ilex"), SpParamsMED, "Psi_Extract")
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