Fig. 4 Relative concentrations, c^r, at two depths in the sandy loam and loam soils (0.125 and 0.725 m) during a steady-state (Exp. 3) and a transient flow (Exp. 4) leaching experiment with a similar time averaged flow. For the transient experiment, c^r is plotted vs. the transformed time coordinate t* (Eq. [17])