Table 3. Nitrogen storage of plant total biomass, litter total biomass, soil and net ecosystem.
Different letters indicate significant differences (p < 0.05) among forest types based on a one-way ANOVA followed by an LSD test.
| Ecosystem pool | BM | BCM | CM | |||
|---|---|---|---|---|---|---|
| N storage | Percentage | N storage | Percentage | N storage | Percentage | |
| Tree (kg ha−1) | 704.16 ± 41 | 5.24 | 518.96 ± 112 | 4.05 | 446.93 ± 24 | 5.24 |
| Shrub (kg ha−1) | 34.06 ± 0.70a | 0.25 | 43.33 ± 6.7a | 0.34 | 23.03 ± 1.05b | 0.27 |
| Herb (kg ha−1) | 8.20 ± 0.16b | 0.06 | 9.59 ± 0.77b | 0.07 | 16.68 ± 1.5a | 0.20 |
| G-litter (kg ha−1) | 70.35 ± 5.07 | 0.52 | 66.42 ± 2.89 | 0.52 | 77.27 ± 4.51 | 0.91 |
| Soil (t ha−1) | 12.63 ± 1.33 | 93.93 | 12.16 ± 2.39 | 95.02 | 7.97 ± 0.29 | 93.43 |
| Net ecosystem (t ha−1) | 13.45 ± 1.32 | 100 | 12.80 ± 2.5 | 100 | 8.53 ± 0.32 | 100 |
Note:
BM, broadleaf mixed forests; BCM, broadleaf-conifer mixed forests; CM, coniferous mixed forests.