Table 4.
Regression models between seed/bud density and environmental factors.
| Biomass | Density | TP | TN | TC | MC | SBD | R2 | |
|---|---|---|---|---|---|---|---|---|
| M_SD | 0.054 (0.224) | 0.569 (2.353) | - | -0.012 (0.049) | -0.004 (0.019) | 0.091 (0.376) | 0.272 (1.127) | 0.465 |
| M_BD | -0.305* | -0.259* | 0.404* | |||||
| C_SD | 0.479 (1.680) | 0.079 (0.501) | 0.223 (1.404) | -0.048 (0.305) | -0.058 (0.367) | 0.171 (1.076) | -0.120 (0.754) | 0.342 |
| C_BD | -0.514 (1.188) | 0.454 (1.081) | 0.159 (0.805) | 0.091 (0.746) | 0.116 (0.727) | -0.408 (1.302) | -0.191 (0.996) | 0.419 |
Each column represents a different predictor variable (C_SD, seed density of the Carex community; C_BD, bud density of the Carex community; M_SD, seed density of the Miscanthus community; and M_BD, bud density of the Miscanthus community). Significance level: *p < 0.05. a(b) represent model coefficients (MC) and variable importance values (VIP), respectively. (TP, total phosphorus; TN, total nitrogen; TC, total carbon; MC, moisture content; SBD, soil bulk density)