Table 1.
Physico-chemical parameters of vegetated soils (VS) and non-vegetated soils (NVS).
| Non-vegetated soil | Vegetated soil | P-value | Test value | |
|---|---|---|---|---|
| Clay (bbb) | 100.40 ± 6.73 | 93.60 ± 5.37 | 0.117 | t = −1.766 |
| Thin silt (bbb) | 228.60 ± 38.72 | 152.20 ± 23.97 | 0.007∗∗ | t = −3.751 |
| Large silt (bbb) | 220.20 ± 17.91 | 138.80 ± 13.63 | 5.95E-05∗∗∗ | t = −8.088 |
| Thin sand (bbb) | 169.20 ± 45.65 | 157.20 ± 29.99 | 0.638 | t = −0.491 |
| Coarse sand (bbb) | 281.80 ± 57.22 | 458.40 ± 26.90 | 0.0009∗∗∗ | t = 6.245 |
| pH | 8.20 ± 0.35 | 7.84 ± 0.05 | 0.007∗∗ | W = 25 |
| pH KCl | 8.08 ± 0.36 | 7.84 ± 0.05 | 0.009∗∗ | W = 25 |
| CaCO3 (g/kg) | 280.40 ± 115.79 | 301.60 ± 51.23 | 0.722 | t = 0.374 |
| C. org (g/kg) | 3.78 ± 0.87 | 6.88 ± 1.70 | 0.011∗ | t = 3.623 |
| OM (g/kg) | 6.54 ± 1.48 | 11.90 ± 2.95 | 0.011∗ | t = 3.626 |
| N tot (g/kg) | <ddl | <ddl | ||
| C/N | NC | NC | ||
| CEC (meq/kg) | 26.80 ± 6.06 | 45.20 ± 11.21 | 0.017∗ | t = 3.228 |
| K2Oex (g/kg) | 0.00 ± 0.00 | 0.01 ± 0.01 | 0.07201 | W = 5 |
| MgOex (g/kg) | 0.76 ± 0.20 | 0.30 ± 0.16 | 0.004∗∗ | t = −3.987 |
| CaOex (g/kg) | 76.84 ± 0.44 | 77.02 ± 0.36 | 0.500 | t = 0.706 |
| Na2Oex (g/kg) | 0.02 ± 0.00 | 0.02 ± 0.00 | 0.204 | t = −1.407 |
Mean values and standard deviations are provided (n = 5). Normally distributed data were analyzed using the parametric Student’s t-test (t-values). Data not normally distributed were analyzed using the non-parametric Mann–Whitney–Wilcoxon (W-values). Significant differences are indicated (∗P < 0.05; ∗∗P < 0.01; and ∗∗∗P < 0.001).