Table 7 Aboveground biomass of Scots pine and Norway spruce in different age groups by the site type, and their F and p values. The mean values (kg tree−1) and standard error were provided for each age group on relevant site type. n = number of observations
Site type | n | F | p | 2 | 3 | 4 |
|---|---|---|---|---|---|---|
Scots pine | ||||||
Young | 32 | 0.479 | 0.494 | NA | 14.019 ± 3.801 | 16.855 ± 2.002 |
Middle-aged | 72 | 14.51 | 0.001 | NA | 91.460 ± 14.400 | 41.857 ± 5.909 |
Mature | 38 | 4.456 | 0.042 | NA | 272.341 ± 39.412 | 183.792 ± 22.016 |
Old | 20 | 1.114 | 0.305 | NA | 513.19 ± 9.015 | 379.540 ± 41.191 |
Tree number on each site type | NA | 44 | 118 | |||
Norway spruce | ||||||
Young | 12 | 0.644 | 0.441 | 82.375 ± 58.375 | 14.911 ± 1.531 | NA |
Middle-aged | 95 | 7.854 | 0.006 | 135.238 ± 23.888 | 74.049 ± 8.083 | NA |
Mature | 37 | 3.722 | 0.062 | 291.679 ± 26.650 | 197.802 ± 38.673 | NA |
Old | 19 | 16.380 | 0.001 | 863.808 ± 36.561 | 531.252 ± 49.037 | NA |
Tree number on each site type | 66 | 79 | NA | |||