Fig. 2. Soil water contents measured in the four columns. Minimum values (triangles) were measured after 2 d of Jw = 0, maximum values (circles) were measured after 1 d of Jw = 9.0 cm d–1, and midpoint values (diamonds) were measured during continuous Jw = 3.0 cm d–1. Note that horizontal lines correspond to approximate A-B (upper) and B-C (lower) horizon boundaries.