Fig. 4. Relationship between saturated hydraulic conductivity (Kfs) and initial soil water content (ui), corresponding to the considered biochar concentrations. Closed and
open symbols represent the Kfs values obtained from relatively low and high ui values, respectively. Vertical lines represent the soil water content corresponding to PWP and
FC (at h =
330 cm). The significant linear regression equations (p-value < 0.0001) are provided below.
C0: (y = 1382.7e
8.3719x; R2 = 0.5947); C5: (y = 1415.1e
8.2563x; R2 = 0.672); C10: (y = 1384e
8.7059x; R2 = 0.695); C20: (y = 1403e
7.9613x; R2 = 0.6627); C30:
(y = 1179.6e
6.5842x; R2 = 0.4467).