fetch3.roots.feddes_root_stress#

feddes_root_stress(theta, theta1, theta2)#

Calculates Feddes root water uptake stress function, from equations S.73, S.74, and S.75 of Silva et al. 2022

Parameters:

  • theta (np.ndarray) – Volumetric soil water content [m3 m-3]

  • theta1 (np.ndarray) – Soil water content below which root water uptake ceases [m3 m-3]

  • theta2 (np.ndarray) – Soil water content below which root water uptake starts decreasing [m3 m-3]

Returns:

stress_roots – Output of Feddes root water stress reduction function [unitless]

Return type:

np.ndarray