Table 1.
Physicochemical properties of soils under different forest topography types.
| Parameter | Forest_lower (LL) | Forest_mid (ML) | Forest_upper (UL) | Sugarcane farm (SC) |
|---|---|---|---|---|
| pH | 5.32 ± 0.04c | 5.44 ± 0.23c | 4.82 ± 0.17b | 3.73 ± 0.18a |
| SM (%) | 10.7 ± 0.86b | 10.9 ± 2.78b | 11.7 ± 2.42b | 11.6 ± 2.60a |
| BD (g/cm3) | 0.87 ± 0.09c | 0.92 ± 0.05c | 1.73 ± 0.09a | 1.26 ± 0.01b |
| TN (%) | 0.47 ± 0.17b | 0.44 ± 0.14b | 0.42 ± 0.08b | 1.50 ± 0.22a |
| TC (%) | 5.51 ± 0.66a | 7.47 ± 0.86a | 2.79 ± 0.53b | 0.95 ± 0.46b |
| C/N | 14.3 ± 6.45a | 15.0 ± 0.37a | 6.76 ± 1.51b | 0.63 ± 0.27c |
| SOM (%) | 7.05 ± 1.13b | 9.56 ± 1.49a | 4.76 ± 0.92c | 1.63 ± 0.80d |
| Ca (mg/kg) | 0.47 ± 0.29c | 3.21 ± 1.11b | 5.94 ± 0.89b | 14.3 ± 3.06a |
| Al (mg/kg) | 87.4 ± 46.8b | 94.7 ± 61.5b | 287 ± 127a | 75.7 ± 25.0b |
| Fe (mg/kg) | 43.5 ± 31.5b | 86.7 ± 28.9b | 182 ± 90a | 43.5 ± 6.03b |
| K (mg/kg) | 4.65 ± 0.17b | 12.4 ± 10.9b | 33.4 ± 15.0c | 9.08 ± 4.07b |
| Mg (mg/kg) | 2.95 ± 2.37c | 4.75 ± 2.90b | 8.56 ± 3.12a | 2.95 ± 0.41c |
| TP (mg/kg) | 40.6 ± 5.87a | 42.4 ± 3.67a | 36.4 ± 2.38b | 26.7 ± 5.13c |
SM, soil moisture; BD, soil bulk density; TN, total nitrogen; TC, total carbon; C/N, the ratio of total organic carbon to total nitrogen; SOM, soil organic matter; and TP, total phosphorus. Different lowercase letters showed significant differences under different forest topography types (p > 0.05).