Dry bulk density (ρb), aeration porosity, log-aeration porosity, total porosity, void ratio, saturated hydraulic conductivity (Ks), natural log-normalized saturated hydraulic conductivity [nLog(Ks)], and % (v/v) volumetric water content for compacted soils averaged over three-year study.
| Soil treatmentz | ||
|---|---|---|
| 2002–2004 mean soil variables | MODERATE | HIGH |
| ρb (g·cm−3) | 1.64 ± 0.02 b | 1.78 ± 0.01 a |
| Aeration porosity (%) | 13 ± 1.2 b | 16 ± 0.7 a |
| Log-aeration porosity | −0.94 ± 0.04 b | −0.84 ± 0.02 a |
| Total porosity (%) | 38 ± 0.7 a | 33 ± 0.3 b |
| Void ratio (m3·m−3) | 0.62 ± 0.02 a | 0.50 ± 0.01 b |
| Ks (cm·r−1)y | 330.0 ± 113.8 a | 21.5 ± 6.9 b |
| nlog- Ks | 3.47 ± 0.58 a | 0.98 ± 0.30 b |
| Volumetric water content (%, v/v)x | 24 ± 0.02 a | 16 ± 0.01 b |
↵zMODERATE = mean bulk density for the three-year study of 1.64 g·cm−3 (n = 28 soil samples), HIGH = mean bulk density for the three-year study of 1.77 g·cm−3 (n = 56 samples).
↵ySaturated hydraulic conductivity (Ks) was measured in 2002 and 2003.
↵xVolumetric water content was determined for each sample from gravimetrie water content and bulk density measures; means ± mean standard errors followed by different letters indicate a significant difference between soil treatments, at P ≤ 0.05 (Tukey’s honestly significant difference test, HSD).