Fig. 5. Directly and inversely estimated unsaturated hydraulic conductivity curves for the Lincoln soil as a function of applied pressure (a) 0–250 mbar, (b) 0–125 mbar, (c) 0–50–100 mbar, (d) 0–25–35–62–80–100 mbar (only the curves for the middle and bottom compartments are shown), (e) directly estimated curves for all experiments for the bottom part of the sample (K₃), (f) inversely estimated curves for all experiments