Table 5 Parameter estimation (standard errors in parentheses) for linear RBAI models using the pooled BAL competition index 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 | 0.2206 (0.0217) | 0.2715 (0.0229) | 0.2304 (0.0356) | 0.1924 (0.0602) |
b 21 | 0.0046 (0.0013) | n.s. | n.s. | 0.0110 (0.0030) | |
b 22 | −0.0439 (0.0032) | −0.0426 (0.0045) | −0.0357 (0.0069) | −0.0500 (0.0093) | |
b 23 | −0.0010 (0.0001) | −0.0008 (0.0002) | −0.0010 (0.0002) | −0.0014 (0.0005) | |
Random effects | σ jk a | 0.0124 | 0.0129 | 0.0176 | 0.0085 |
σ k b | 0.0104 | 0.0000 | 0.0072 | 0.0164 | |
σ 2c | 4.1129 | 4.7621 | 3.5362 | 2.0249 | |
δ d | −1.2021 | −1.1570 | −1.2048 | −0.9985 |