Table 1.
Peat soil physicochemical properties of MPS, ABt, and ABg at 0–20 cm and 30–50 cm soil depths.
| Properties | MPS | ABt | ABg | |||
|---|---|---|---|---|---|---|
| 0–20 cm | 30–50 cm | 0–20 cm | 30–50 cm | 0–20 cm | 30–50 cm | |
| WT (cm) | − 3.8 ± 3.6a | − 8.1 ± 4.7a | 18.3 ± 3.8b | |||
| pH | 3.9 ± 0.0 | 3.8 ± 0.0 | 4.2 ± 0.0 | 4.1 ± 0.1 | 4.1 ± 0.0 | 4.1 ± 0.0 |
| LOI (%) | 98.5 ± 0.2a | 99.3 ± 0.1b | 99.4 ± 0.1b | 99.5 ± 0.1b | 99.4 ± 0.1b | 99.6 ± 0.0b |
| PSI | 21.5 ± 1.9a | 13.5 ± 0.8b | 2.5 ± 0.1c | 4.9 ± 0.6c | 1.9 ± 0.2c | 1.9 ± 0.1c |
| TC (%) | 53.9 ± 0.7a | 53.9 ± 0.7a | 54.1 ± 1.1a | 54.1 ± 0.9a | 54.0 ± 1.0a | 54.5 ± 0.6a |
| TN (%) | 1.5 ± 0.1a | 1.7 ± 0.2a | 1.7 ± 0.1a | 1.7 ± 0.0a | 1.5 ± 0.1a | 1.5 ± 0.1a |
| C/N ratio | 36.1 ± 3.0a | 33.4 ± 3.6a | 32.3 ± 2.6a | 32.6 ± 0.8a | 35.4 ± 1.9a | 36.5 ± 2.3a |
Values are mean ± standard error. Different letters in the same row indicate significant difference at the level of P < 0.05 based on Tukey’s HSD test.
WT water table with (−) values indicating depths below soil surface, LOI loss-on-ignition, PSI pyrophosphate solubility index, TC total carbon, TN total nitrogen.