Table 2 General linear model analysis for a mixed model nested ANOVA-type design, testing for the effects of species (N. pumilio and N. betuloides) and site as fixed factors, and replica as random factor, on the forest structure of mixed forests with similar proportion of both species. F (p) Fisher statistic with probability in parentheses. Different letters show differences by Tukey test at p < 0.05.
Main factors | BA (m2 ha−1) | TD (ind ha−1) | DBH (cm) | DH (m) | L (t ha−1 yr−1) | |
|---|---|---|---|---|---|---|
Species | N. pumilio | 43.5 | 683 | 45.59 | 18.0 | 1.16 b |
N. betuloides | 33.6 | 227 | 53.40 | 18.6 | 0.54 a | |
Site | COA | 32.7 | 366 | 54.37 | 17.4 | 0.70 a |
MOU | 44.4 | 544 | 44.65 | 19.3 | 1.01 b | |
Tested effects | ||||||
Species | F (p) | 0.49 (0.555) | 2.17 (0.278) | 0.86 (0.451) | 0.19 (0.703) | 86.93 (0.011*) |
Site | F (p) | 0.69 (0.494) | 0.33 (0.622) | 1.34 (0.366) | 1.83 (0.319) | 22.02 (0.042*) |
Species × Site | F (p) | 0.28 (0.647) | 0.07 (0.816) | 1.28 (0.375) | 0.17 (0.721) | 16.67 (0.055) |
Species × Replica (Site) | F (p) | 6.19 (0.005*) | 4.68 (0.016*) | 3.78 (0.333) | 0.61 (0.548) | 1.95 (0.158) |