Table 2.
Significance of the effects of soil abiotic properties and plant functional traits on bacterial community composition along the successional gradient.
| Soil property | CCA1 | CCA2 | r2 | Pr (>r) | Significance |
|---|---|---|---|---|---|
| Soil property | |||||
| Total N | 0.90 | 0.43 | 0.93 | 0.00 | ∗∗∗ |
| Total C | 0.88 | 0.47 | 0.87 | 0.00 | ∗∗∗ |
| NH4-N | 1.00 | -0.07 | 0.64 | 0.00 | ∗∗∗ |
| PO4-P | 0.64 | 0.77 | 0.56 | 0.00 | ∗∗∗ |
| pH | -0.98 | 0.22 | 0.41 | 0.01 | ∗∗ |
| NO3-N | -0.91 | 0.41 | 0.25 | 0.03 | ∗ |
| Plant trait | |||||
| Height | 0.86 | -0.51 | 0.79 | 0.00 | ∗∗∗ |
| SLA | 0.25 | 0.97 | 0.44 | 0.00 | ∗∗∗ |
| SNC | -0.42 | 0.91 | 0.49 | 0.00 | ∗∗∗ |
| RCC | 0.39 | -0.92 | 0.45 | 0.00 | ∗∗∗ |
| LPC | -0.32 | 0.95 | 0.54 | 0.00 | ∗∗∗ |
| SM | 0.99 | -0.11 | 0.37 | 0.00 | ∗∗ |
| RNC | -0.04 | 1.00 | 0.32 | 0.01 | ∗∗ |
| LNC | -0.75 | 0.66 | 0.20 | 0.05 | NS |
SLA, specific leaf area; SNC, stem nitrogen concentration; RCC, root carbon concentration; LPC, leaf phosphorus concentration; SM, seed mass; RNC, root nitrogen concentration; LNC, leaf nitrogen concentration. NS, no significance, ∗P < 0.05, ∗∗P < 0.01, ∗∗∗P < 0.001.