Line Plot from Scientific Research

In the coarsest-textured soils, k soil and psi crit follow a linear decline (dashed brown line) corresponding to simulations excluding any plant hydraulic limitations (no plant lim.). In very fine-textured soils, psi crit converges to a constant value controlled by the water potential at which plants lose conductivity (black dashed vertical line, as in d, representing L root inf.).

DOI