Fit stomatal conductance¶
Fit the Buckley–Turnbull–Adams or Medlyn stomatal conductance model. See Stomatal conductance models.
BTA: conductance, light and VPD¶
The file needs conductance (gsw, gs, gsw_corrected, and similar), light
(Qin, Qabs, Q, PARi, and similar) and VPD (VPDleaf, VPD, and
similar, in kPa) or Ds (mmol mol⁻¹):
Medlyn: conductance, assimilation, CO₂ and VPD¶
The file needs conductance, net assimilation (A, A_solved, Anet, and
similar) and VPD. A CO₂ column (Cs, Ca, CO2, and similar) is optional;
without one, Cs = 420 µmol mol⁻¹.
From porometry¶
Correct the LI-600 file, estimate A, and fit Medlyn to the result. The file
then has gsw_corrected, A_solved and VPDleaf. See
Estimate A from porometry.