Table 1.
OLS models generated in the multiple regression analyses with single soil factors.
| Cover | Biomass | Richness | Diversity | |
|---|---|---|---|---|
| AK | ||||
| B | 49.22*** | 8.30*** | — | 0.81** |
| SEB | 5.73 | 1.24 | 0.25 | |
| 95.0% conf inter | 37.83~60.60 | 5.84~10.77 | 0.31~1.30 | |
| Beta | 0.56 | 0.54 | 0.35 | |
| SOC | ||||
| B | 15.35*** | 1.82** | — | — |
| SEB | 2.78 | 0.63 | ||
| 95.0% conf inter | 9.83~20.86 | 0.58~3.07 | ||
| Beta | 0.35 | 0.23 | ||
| CS | ||||
| B | −3.01** | — | — | — |
| SEB | 1.03 | |||
| 95.0% conf inter | −5.07~−0.96 | |||
| Beta | −0.19 | |||
| TN | ||||
| B | — | 2.24* | 5.77*** | — |
| SEB | 0.99 | 1.12 | ||
| 95.0% conf inter | 0.26~4.22 | 3.54~7.99 | ||
| Beta | 0.24 | 0.74 | ||
| PRO | ||||
| B | — | −0.58* | — | 0.092* |
| SEB | 0.26 | 0.047 | ||
| 95.0% conf inter | −1.10~−0.065 | −0.001~0.19 | ||
| Beta | −0.20 | 0.21 | ||
| PHO | ||||
| B | — | 1.45* | 2.04** | — |
| SEB | 0.70 | 0.68 | ||
| 95.0% conf inter | 0.056~2.85 | 0.68~3.40 | ||
| Beta | 0.18 | 0.30 | ||
| CLS | ||||
| B | — | — | −1.68* | — |
| SEB | 0.67 | |||
| 95.0% conf inter | −3.02~−0.34 | |||
| Beta | 0.33 | |||
| SW | ||||
| B | — | — | — | 0.71*** |
| SEB | 0.21 | |||
| 95.0% conf inter | 0.30~1.12 | |||
| Beta | 0.30 | |||
| Constant | ||||
| B | −76.46 | −10.79 | 9.53 | −1.08 |
| SEB | 13.68 | 2.96 | 1.80 | 0.46 |
| 95.0% conf inter | −103.63~−49.30 | −16.67~−4.92 | 5.96~13.10 | −1.99~−0.16 |
| Adjusted R2 | 0.67 | 0.65 | 0.51 | 0.31 |
| Pf | 0.00 | 0.00 | 0.00 | 0.00 |
| SEE | 11.05 | 2.00 | 2.04 | 0.42 |
| n | 95 | 94 | 96 | 96 |
Notes: Each column represents an OLS model using a vegetation recovery parameter as a dependent variable and soil factors as independent variables. The standardized coefficients are in bold. ***Pt < 0.001; **Pt < 0.01; *Pt < 0.05. Pt, p value of the t-test for an individual regression coefficient. B, un-standardized coefficient; SEB, standard error of B; 95.0% conf inter, 95.0% confidence interval for B (lower bound~upper bound); Beta, standardized coefficient; Pf, p value of the F-test for the overall significance of the model; SEE, standard error of the estimate; n, number of cases.