| P-chimiques | savannah | forest | P ≥ F | E-T |
| MO (%) | 1.01a | 0.80b | 0.002 | 1.02 |
| N (%) | 0.04a | 0.07b | 0.0001 | 0.04 |
| C/N | 15.26a | 15.49a | 0.88 | 5.89 |