Table 2 Changes in C N content in plants and soil (different lowercase letters represent p < 0.05).
Trees TN | Undergrowth TN | Litter TN | Soil TN | Trees TC | Undergrowth TC | Litter TC | Soil OM | |
|---|---|---|---|---|---|---|---|---|
(g/kg) | (g/kg) | (g/kg) | (g/kg) | (g/kg) | (g/kg) | (g/kg) | (g/kg) | |
Northeast | 9.61 ± 0.64a | 10.48 ± 0.25a | 8.53 ± 0.7a | 2.39 ± 0.20b | 413.57 ± 19.08b | 322.41 ± 15.46a | 391.70 ± 20.90a | 8.21 ± 1.49a |
Southeast | 10.45 ± 0.45a | 10.99 ± 0.70a | 7.95 ± 0.47a | 0.37 ± 0.16a | 397.73 ± 13.49ab | 307.31 ± 20.9a | 380.26 ± 14.09a | 8.37 ± 1.17a |
Central | 10.05 ± 0.64a | 11.00 ± 0.64a | 7.98 ± 0.64a | 0.61 ± 0.17a | 395.08 ± 19.08ab | 345.15 ± 19.08a | 381.9 ± 19.08a | 14.56 ± 1.24b |
Southwest | 9.61 ± 0.64a | 9.62 ± 0.90a | 8.45 ± 0.64a | 0.93 ± 0.24a | 383.08 ± 19.08ab | 344.67 ± 26.98a | 387.45 ± 19.08a | 24.26 ± 1.80c |
Northwest | 9.22 ± 0.90a | 9.67 ± 0.90a | 7.96 ± 0.90a | 0.61 ± 0.33a | 377.33 ± 26.98a | 374.93 ± 26.98a | 380 ± 26.98a | 14.67 ± 2.43b |