FIG. 5. Cross-sections of the three-dimensional soil water content distribution after 7 d with constant water flux at the root collar J_c = –10 cm³ d^–1 (Collar Boundary Condition 2, Table 1). Comparison between the reference (extreme right) and 10-fold increase of xylem conductivity(K_x), radial conductance (K_r*), and saturated soil conductivity (K_s). Root architecture is shown in white.