A: Compute CO2 assimilation for a leaf given parameters and...

In AleMorales/RMultilayerCanopy:

Compute CO2 assimilation for a leaf given parameters and environment

Description

Compute CO2 assimilation for a leaf given parameters and environment

Usage

A(
  pars = parameters(),
  Np = 0.1,
  f_Nc = 0.15,
  f_Nr = 0.3,
  VPD = 1,
  PAR = 1000,
  Tleaf = 25,
  Ca = 400
)

Arguments

pars	Parameters as generated by parameters
Np	Photosynthetic nitrogen content (mol/m2)
f_Nc	Fraction of photosynthetic nitrogen allocated to chlorophyll
f_Nr	Fraction of photosynthetic nitrogen allocated to Rubisco
VPD	Vapor pressure deficit (kPa)
PAR	Photosynthetically active radiation (umol/m2/s)
Tleaf	Leaf temperature (Celsius)
Ca	CO2 molar fraction in the air (umol/mol)

Value

A named vector with gross CO2 assimilation ("Ag"), net CO2 assimilation ("A"), net CO2 assimilation limited by carboxylation capacity ("Ac") and net CO2 assimilation limited by electron transport capacity ("Aj"), excess energy as potential assimilation ("E}) and the relative excess energy (\code{"rE).

Examples

pars = parameters()
As = A(pars)
As["A"] == min(As["Ac"], As["Aj"])

AleMorales/RMultilayerCanopy documentation built on June 11, 2022, 8:41 p.m.