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Table VI
Fit-statistics and parameter estimates (standard errors in parenthesis) for equation (9). N is the number of plots, se the standard error of the estimate of the quadratic mean diameter, dg (cm).
Species | Data | N | se | R2 | a1 | b0 |
---|---|---|---|---|---|---|
Pinus sylvestris | Natural | 468 | 4.345 | 0.761 | 0.6183 (0.0302) | 0.2763 (0.0320) |
Plantation | 262 | 2.397 | 0.863 | 0.7048 (0.0231) | 0.4081 (0.0320) | |
Quercus pyrenaica | Region1 | 193 | 4.533 | 0.440 | 0.6109 (0.0544) | 0.5385 (0.1051) |
Region 2 | 388 | 5.831 | 0.369 | 0.5428 (0.0434) | 0.3847 (0.0612) |