carbon: Carbon-related functions

In medfate: Mediterranean Forest Simulation

Carbon-related functions

Description

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

Usage

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_leafStarchCapacity(LAI, N, SLA, leafDensity)

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

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

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

carbon_carbonCompartments(x, biomassUnits = "g_m2")

Arguments

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).
SA	Sapwood area (cm2).
H	Plant height (cm).
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).
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).

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.

Author(s)

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

medfate documentation built on April 4, 2025, 2:01 a.m.