medfate (version 5.0.0)

carbon_belowgroundSapwoodStructuralBiomass: Carbon-related functions

Description

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)

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.

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).

Author

Miquel De Cáceres Ainsa, CREAF

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

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)