Autotrophic Respiration

AutotrophicRespirationParameters{FT<:AbstractFloat}

The required parameters for the autrophic respiration model, which is based off of the JULES model. Clark, D. B., et al. "The Joint UK Land Environment Simulator (JULES), model description–Part 2: carbon fluxes and vegetation dynamics." Geoscientific Model Development 4.3 (2011): 701-722.

• ne: Vcmax25 to N factor (mol CO2 m-2 s-1 kg C (kg C)-1)

• ηsl: Live stem wood coefficient (kg C m-3)

• σl: Specific leaf density (kg C m-2 [leaf])

• μr: Ratio root nitrogen to top leaf nitrogen (-), typical value 1.0

• μs: Ratio stem nitrogen to top leaf nitrogen (-), typical value 0.1

• Rel: Relative contribution or Rgrowth (-)

nitrogen_content(
                 ne::FT, # Mean leaf nitrogen concentration (kg N (kg C)-1)
                 Vcmax25::FT, #
                 LAI::FT, # Leaf area index
                 SAI::FT,
                 RAI::FT,
                 ηsl::FT, # live stem  wood coefficient (kg C m-3) 
                 h::FT, # canopy height (m)
                 σl::FT # Specific leaf density (kg C m-2 [leaf])
                 μr::FT, # Ratio root nitrogen to top leaf nitrogen (-), typical value 1.0
                 μs::FT, # Ratio stem nitrogen to top leaf nitrogen (-), typical value 0.1 
                ) where {FT}

Computes the nitrogen content of leafs (Nl), roots (Nr) and stems (Ns).

plant_respiration_maintenance(
    Rd::FT, # Dark respiration
    β::FT, # Soil moisture factor
    Nl::FT, # Nitrogen content of leafs
    Nr::FT, # Nitrogen content of roots
    Ns::FT, # Nitrogen content of stems
    ) where {FT}

Computes plant maintenance respiration as a function of dark respiration (Rd), the nitrogen content of leafs (Nl), roots (Nr) and stems (Ns), and the soil moisture factor (β).

plant_respiration_growth(
    Rel::FT, # Factor of relative contribution
    An::FT, # Net photosynthesis
    Rpm::FT # Plant maintenance respiration
    ) where {FT}

Computes plant growth respiration as a function of net photosynthesis (An), plant maintenance respiration (Rpm), and a relative contribution factor, Rel.