Table 1: Mean values of selected soil physical parameters in topsoil (0–30 cm) measured in 1988, prior to the start of the experiment (from [21]).

System Parameter number1 1 2 3 4 5 6 7 8 9 10 CA1 51 10 11 29 12 7 6 43 38 19 CA2 48 10 6 27 11 3 9 52 33 15 OA 49 7 7 30 12 4 6 46 35 19 CM 48 9 8 27 12 5 9 47 35 19 OM1 49 7 9 30 12 6 8 50 33 17 OM2 50 8 7 30 12 4 5 45 36 19 s.e.2 1.5 1.2 2.5 1.2 0.5 2.1 1.5 1.5 1.0 1.0 Mean 49 9 8 29 12 5 7 47 35 18

1Parameter number: (1) total porosity (%), (2) air capacity at pF2 (%), (3) air permeability at pF2 (m2), (4) total available water (pF 2–4.2) (%), (5) nonavailable water () (%), (6) hydraulic conductivity (cm/h), (7) gravel content (%), (8) sand content (%), (9) silt content (%), (10) clay content (%). 2 Standard error of means.