medfate (version 5.0.0)

transp_stomatalregulation: Stomatal regulation

Description

Set of high-level functions used in the calculation of stomatal conductance and transpiration. Function transp_profitMaximization calculates gain and cost functions, as well as profit maximization from supply and photosynthesis input functions. Function transp_stomatalRegulationPlot produces a plot with the cohort supply functions against water potential and a plot with the cohort photosynthesis functions against water potential, both with the maximum profit values indicated.

Usage

transp_profitMaximization(
  supplyFunction,
  photosynthesisFunction,
  Gswmin,
  Gswmax
)

Value

Function transp_profitMaximization returns a list with the following elements:

• Cost: Cost function [0-1].

• Gain: Gain function [0-1].

• Profit: Profit function [0-1].

• iMaxProfit: Index corresponding to maximum profit (starting from 0).

Arguments

supplyFunction

Water supply function (see hydraulics_supplyFunctionNetwork).

photosynthesisFunction

Function returned by photo_photosynthesisFunction().

Gswmin, Gswmax

Minimum and maximum stomatal conductance to water vapour (mol·m-2·s-1).

Author

Miquel De Cáceres Ainsa, CREAF

References

Sperry, J. S., M. D. Venturas, W. R. L. Anderegg, M. Mencuccini, D. S. Mackay, Y. Wang, and D. M. Love. 2017. Predicting stomatal responses to the environment from the optimization of photosynthetic gain and hydraulic cost. Plant Cell and Environment 40, 816-830 (doi: 10.1111/pce.12852).

See Also

transp_transpirationSperry, hydraulics_supplyFunctionNetwork, biophysics_leafTemperature, photo_photosynthesis, spwb_day, plot.spwb_day