Table 1.
Dominant tree species and soil nutrient concentrations at depths of 0–30 cm in the four forests investigated
| Forest type | Dominant species | Importance value (%) | Average tree height (m) | Soil depth (cm) | Organic C (g/kg) | Total N (g/kg) | Total P (g/kg) |
|---|---|---|---|---|---|---|---|
| CL | C. lanceolata | 100.00 | 19.5 | 0–15 | 19.72 ± 4.27b,c | 1.12 ± 0.23c,d,e | 0.21 ± 0.06b |
| 15–30 | 14.99 ± 3.36c | 0.96 ± 0.22e | 0.20 ± 0.07b | ||||
| PM | P. massoniana | 28.24 | 13.5 | 0–15 | 24.21 ± 7.49a,b | 1.37 ± 0.29b,c | 0.25 ± 0.06a,b |
| L. glaber | 20.04 | 8.0 | 15–30 | 17.75 ± 4.19c | 1.02 ± 0.22e | 0.22 ± 0.05b,c | |
| CA | C. axillaris | 26.49 | 15.9 | 0–15 | 23.63 ± 6.97a,b | 1.65 ± 0.44a | 0.29 ± 0.07a |
| Loropetalum chinensis | 15.51 | 4.8 | 15–30 | 18.40 ± 4.62c | 1.33 ± 0.44c,d | 0.27 ± 0.06a | |
| CG | C. glauca | 9.90 | 11.4 | 0–15 | 25.79 ± 7.34a | 1.44 ± 0.36a,b | 0.20 ± 0.04c |
| L. glaber | 25.93 | 10.5 | 15–30 | 18.48 ± 6.71c | 1.12 ± 0.37c,d,e | 0.19 ± 0.04c |
CL, Cunninghamia lanceolata forest; PM, Pinus massoniana forest; CA, Choerospondias axillaris forest; CG, Cyclobalanopsis glauca; LG, Lithocarpus glaber forest.
In each column, values from the same sample type with different letters indicate significant differences at p < .05.