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Carbon-related functions

Source: R/RcppExports.R
carbon.Rd

Low-level functions used in the calculation of carbon balance.

Usage

carbon_belowgroundSapwoodStructuralBiomass(SA, L, V, woodDensity)

carbon_sapwoodStructuralBiomass(SA, H, L, V, woodDensity)

carbon_belowgroundHeartwoodStructuralBiomass(DBH, SA, L, V, woodDensity)

carbon_heartwoodStructuralBiomass(DBH, SA, H, L, V, woodDensity)

carbon_sapwoodStarchCapacity(SA, H, L, V, woodDensity, conduit2sapwood)

carbon_carbonCompartments(x, biomassUnits = "g_m2")

carbon_sugarStarchDynamicsLeaf(sugarConc, starchConc, eqSugarConc)

carbon_sugarStarchDynamicsStem(sugarConc, starchConc, eqSugarConc)

carbon_osmoticWaterPotential(sugarConc, temp, nonSugarConc)

carbon_sugarConcentration(osmoticWP, temp, nonSugarConc)

carbon_relativeSapViscosity(sugarConc, temp)

carbon_leafStructuralBiomass(LAI, N, SLA)

carbon_twigStructuralBiomass(LAI, N, SLA, r635)

carbon_leafStarchCapacity(LAI, N, SLA, leafDensity)

carbon_abovegroundSapwoodStructuralBiomass(SA, H, woodDensity)

carbon_abovegroundHeartwoodStructuralBiomass(DBH, SA, H, woodDensity)

Arguments

SA

Sapwood area (cm2).

L

Coarse root length (mm) for each soil layer.

V

Proportion of fine roots in each soil layer.

woodDensity

Wood density (dry weight over volume).

H

Plant height (cm).

DBH

Tree diameter (cm).

conduit2sapwood

Proportion of sapwood corresponding to conducive elements (vessels or tracheids) as opposed to parenchymatic tissue.

x

An object of class growthInput.

biomassUnits

A string for output biomass units, either "g_ind" (g per individual) or "g_m2" (g per square meter).

sugarConc

Concentration of soluble sugars (mol/l).

starchConc

Concentration of starch (mol/l)

eqSugarConc

Equilibrium concentration of soluble sugars (mol/l).

temp

Temperature (degrees Celsius).

nonSugarConc

Concentration of inorganic solutes (mol/l).

osmoticWP

Osmotic water potential (MPa).

LAI

Leaf area index.

N

Density (ind·ha-1).

SLA

Specific leaf area (mm2/mg = m2/kg).

leafDensity

Density of leaf tissue (dry weight over volume).

Value

Values returned for each function are:

  • carbon_leafStarchCapacity: Capacity of storing starch in the leaf compartment (mol gluc/ind.).

  • carbon_leafStructuralBiomass: Leaf structural biomass (g dry/ind.)

  • carbon_sapwoodStarchCapacity: Capacity of storing starch in the sapwood compartment (mol gluc/ind.).

  • carbon_sapwoodStructuralBiomass: Sapwood structural biomass (g dry/ind.)

  • carbon_sapwoodStructuralLivingBiomass: Living sapwood (parenchyma) structural biomass (g dry/ind.)

  • carbon_sugarConcentration: Sugar concentration (mol gluc/l)

  • carbon_osmoticWaterPotential: Osmotic component of water potential (MPa)

  • carbon_relativeSapViscosity: Relative viscosity of sapwood with respect to pure water (according to Forst et al. (2002)).

  • carbon_sugarStarchDynamicsLeaf: Rate of conversion from sugar to starch in leaf (mol gluc/l/s).

  • carbon_sugarStarchDynamicsStem: Rate of conversion from sugar to starch in leaf (mol gluc/l/s).

  • carbon_carbonCompartments: A data frame with the size of compartments for each plant cohort, in the specified units.

References

Forst P, Wermer F, Delgado A (2002). On the pressure dependence of the viscosity of aqueous sugar solutions. Rheol Acta 41: 369–374 DOI 10.1007/s00397-002-0238-y

See also

growth

Author

Miquel De Cáceres Ainsa, CREAF

Examples

#Load example plot plant data
data(exampleforest)
#Default species parameterization
data(SpParamsMED)
#Initialize control parameters
control <- defaultControl("Granier")
#Initialize soil with default soil params (4 layers)
examplesoil <- defaultSoilParams(4)
#Initialize model input
x1 <- growthInput(exampleforest, examplesoil, SpParamsMED, control)

# Estimate carbon compartments
carbon_carbonCompartments(x1)
#>   LeafStorageVolume SapwoodStorageVolume LeafStarchMaximumConcentration
#> 1        27.7287655           9.15744645                       0.925123
#> 2         2.4762111          16.23278594                       0.925123
#> 3         0.2042533           0.06613386                       0.925123
#>   SapwoodStarchMaximumConcentration LeafStarchCapacity SapwoodStarchCapacity
#> 1                          4.625615         25.6525190            42.3588222
#> 2                          4.625615          2.2907999            75.0866190
#> 3                          4.625615          0.1889595             0.3059098
#>   LeafStructuralBiomass TwigStructuralBiomass TwigLivingStructuralBiomass
#> 1            165.109206             159.20266                   11.808496
#> 2            111.289246              89.68486                   33.511917
#> 3              7.373456               9.50772                    3.552684
#>   DeadLeafStructuralBiomass DeadTwigStructuralBiomass SapwoodStructuralBiomass
#> 1                         0                         0               2038.84185
#> 2                         0                         0               3517.55997
#> 3                         0                         0                 18.41066
#>   SapwoodLivingStructuralBiomass HeartwoodStructuralBiomass
#> 1                     151.226460                  7089.1908
#> 2                    1314.382163                   517.6379
#> 3                       6.879385                     0.0000
#>   AbovegroundWoodBiomass BelowgroundWoodBiomass FineRootBiomass LabileBiomass
#> 1             8930.18145             197.851192       27.126340    127.344570
#> 2             3776.25018             258.947653       52.674552    477.189379
#> 3               12.64131               5.769352        2.855096      6.054518
#>   StructuralBiomass DeadBiomass TotalLivingBiomass TotalBiomass
#> 1        2390.28006   7089.1908          482.61507   9606.81542
#> 2        3771.20863    517.6379         1989.04726   4766.03587
#> 3          38.14694      0.0000           26.71514     44.20145