Table 6 Parameter estimation (standard errors in parentheses) for linear RBAI models using MEI 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 | 0.1523 (0.0203) | 0.2623 (0.0191) | 0.1493 (0.0236) | 0.0687 (0.0410) |
b 21 | 0.0043 (0.0015) | n.s. | n.s. | 0.0111 (0.0028) | |
b 22 | −0.0279 (0.0021) | −0.0388 (0.0036) | −0.0188 (0.0044) | −0.0280 (0.0056) | |
b 24 | −0.0162 (0.0039) | −0.0231 (0.0059) | n.s. | n.s. | |
b 25 | −0.0143 (0.0013) | −0.0149 (0.0021) | −0.0099 (0.0027) | n.s. | |
Random effects | σ jk a | 0.0157 | 0.0094 | 0.0205 | 0.0000 |
σ k b | 0.0107 | 0.0109 | 0.0063 | 0.0178 | |
σ 2c | 4.4393 | 5.1239 | 3.2521 | 4.5534 | |
δ d | −1.2243 | −1.191969 | −1.1840 | −1.1880 |