Table 7 Parameter estimation (standard errors in parentheses) for linear RBAI models using BAL index where competition effect is discriminated as described in Eq. 2
From: Quantifying competition in white spruce (Picea glauca) plantations
Parameters | White spruce | Balsam fir | Other conifers | Broadleaves | |
|---|---|---|---|---|---|
Fixed part | b 20 | 0.2241 (0.0219) | 0.2612 (0.0231) | 0.2294 (0.0357) | 0.1536 (0.0570) |
b 21 | 0.0045 (0.0013) | n.s. | n.s. | 0.0112 (0.0031) | |
b 22 | −0.0441 (0.0032) | −0.0407 (0.0045) | −0.0356 (0.0069) | −0.0428 (0.0083) | |
b 24 | −0.0030 (0.0009) | n.s. | n.s. | n.s. | |
b 25 | −0.0010 (0.0001) | −0.0007 (0.0002) | −0.0010 (0.0002) | −0.0013 (0.0006) | |
Random effects | σ jk a | 0.0122 | 0.0103 | 0.0179 | 0.0104 |
σ k b | 0.0111 | 0.0097 | 0.0071 | 0.0169 | |
σ 2c | 4.0353 | 5.3915 | 3.4848 | 3.0628 | |
δ d | −1.1990 | −1.1922 | −1.2015 | −1.1002 |