timberharvestedvolume: Compute the timber harvested volume

In thomasgaquiere/Maria: Simulate Different Forms of Logging on a Forest

Description

Compute the timber harvested volume

Usage

timberharvestedvolume(
  inventory,
  scenario,
  fuel = NULL,
  advancedloggingparameters = loggingparameters()
)

Arguments

inventory	Input inventory (see the inputs formats and metadata in the vignette) (data.frame)
scenario	Logging scenario: "RIL1", "RIL2broken", "RIL2", "RIL3", "RIL3fuel", "RIL3fuelhollow" or "manual"(character) (see the vignette)
fuel	Fuel wood exploitation: no exploitation = "0", exploitation of damage and unused part of logged trees for fuel = "1", exploitation of hollow trees, damage and and unused part of the log for fuel = "2"
advancedloggingparameters	Other parameters of the logging simulator loggingparameters (list)

Details

When fuel is "2", by default, 2/3 of the log of a hollow tree will be usable as timber and 1/3 as fuel wood ('TreeHollowPartForFuel'). When fuel is not "2", hollow trees are not used for timber nor fuel wood. Dead trees from the operation (trails, secondary windfall) are never exploited as timber, but as fuel wood if chosen.

Value

A list with the logged volume (TimberLoggedVolume) and when fuel = "2", the logged volume without the hollow trees (NoHollowTimberLoggedVolume). NoHollowTimberLoggedVolume is the logged volume (TimberLoggedVolume) when fuel = "0" or "1".

Examples

data(Paracou6_2016)
data(MainTrails)
data(HarvestablePolygons)

inventory <- addtreedim(inventorycheckformat(Paracou6_2016),
volumeparameters = ForestZoneVolumeParametersTable)

inventory <- suppressMessages(treeselection(inventory, objective = 20, scenario ="manual",
 fuel = "2", diversification = TRUE, specieslax = FALSE,
 harvestablepolygons = HarvestablePolygons, maintrails = MainTrails,
 objectivelax = TRUE, topography = DTMParacou, plotslope = PlotSlope,
 speciescriteria = SpeciesCriteria,
 advancedloggingparameters = loggingparameters())$inventory)

timberharvestedvolume(inventory, scenario = "manual", fuel = "2",
advancedloggingparameters = loggingparameters())

thomasgaquiere/Maria documentation built on Dec. 24, 2021, 1:20 a.m.