Table 2.
OLS models generated in the multiple regression analyses between vegetation recovery and soil C, N, P and K cycles.
| Cover | Biomass | Richness | Diversity | REC | |
|---|---|---|---|---|---|
| C cycling | |||||
| B | 0.66*** | 0.58*** | — | — | 0.32** |
| SEB | 0.090 | 0.095 | 0.12 | ||
| 95.0% conf inter | 0.48~0.84 | 0.39~0.77 | 0.084~0.55 | ||
| K cycling | |||||
| B | 0.52*** | 0.40*** | 0.25* | — | 0.29*** |
| SEB | 0.093 | 0.099 | 0.11 | 0.081 | |
| 95.0% conf inter | 0.33~0.70 | 0.21~0.60 | 0.026~0.47 | 0.13~0.45 | |
| N cycling | |||||
| B | — | — | 0.38* | 0.54*** | 0.30* |
| SEB | 0.15 | 0.10 | 0.12 | ||
| 95.0% conf inter | 0.087~0.67 | 0.33~0.74 | 0.066~0.52 | ||
| P cycling | |||||
| B | — | — | 0.33* | — | — |
| SEB | 0.15 | ||||
| 95.0% conf inter | 0.026~0.63 | ||||
| Constant | |||||
| B | 0.027 | −0.030 | 0.001 | 0.000 | 0.001 |
| SEB | 0.069 | 0.072 | 0.077 | 0.090 | 0.055 |
| 95.0% conf inter | −0.11~0.16 | −0.17~0.11 | −0.15~0.15 | −0.18~0.18 | −0.11~0.11 |
| Adjusted R2 | 0.55 | 0.45 | 0.43 | 0.21 | 0.56 |
| Pf | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| SEE | 0.67 | 0.70 | 0.75 | 0.89 | 0.54 |
| n | 95 | 95 | 96 | 96 | 96 |
Notes: Each column represents an OLS model using one of the vegetation recovery parameters as a dependent variable and soil C, N, P and K cycles as independent variables. The coefficients of C, N and K cycles are presented, and significant values are in bold. ***Pt < 0.001; **Pt < 0.01; *Pt < 0.05. Pt denotes p value of the t-test for an individual regression coefficient. REC denotes the general index of vegetation recovery. The other abbreviations are as presented in Table 1.