Inverse non-rectangular hyperbola for J_max calculation

calculate_jmax(PPFD, alpha, J, theta_J)

calculate_j(PPFD, alpha, J_max, theta_J)

Arguments

PPFD: light intensity in umol m-2 s-1
alpha: initial slope of the light response
J: electron transport rate in umol m-2 s-1
theta_J: curvature of the light response
J_max: maximum rate of electron transport in umol m-2 s-1

Value

calculate_jmax calculates J_max given PPFD and J. It is necessary for the electron transport component of the fit_aci_response function.

calculate_j provides a model of the light response of J. It is necessary for fitting the electron transport component of the photosynthetic CO2 response curves in fit_aci_response.