Table 2 Fit statistics of the model of productivity
From: Romanian legal management rules limit wood production in Norway spruce and beech forests
Estimate | Std. error | t value | Pr (>|t|) | |
|---|---|---|---|---|
Intercept (site RO) | −34.5520 | 12.2379 | −2.823 | 0.005 |
Volume (m3∙ha−1) | 0.2192 | 0.0116 | 18.845 | <2e–16 |
Density (trees∙ha−1) | 0.0152 | 0.0038 | 4.032 | 7e–05 |
Age (years) | −0.0079 | 0.1751 | −0.045 | 0.9639 |
Management (site D) | 70.3157 | 7.0975 | 9.907 | <2e–16 |
Density x management | 0.0158 | 0.0047 | 3.288 | 0.0011 |