Table 2. Descriptive statistics of plot-level information for each National Forest Inventory (NFI) for the randomly selected populations of trees across Europe.
| Spain | Wallonia | Germany | Sweden | Finland | Total | |
|---|---|---|---|---|---|---|
| No. plots | 18 083 | 90 | 7 649 | 4 621 | 1 619 | 32 628 |
| No. trees | 146 799 | 668 | 38 620 | 48 902 | 15 888 | 275 558 |
| No. species | 11 | 4 | 9 | 5 | 6 | 14 |
| PET (±SD) | 1018.9 ± 163.2 | 715.8 ± 42.1 | 732.9 ± 49.1 | 508.8 ± 57.9 | 505.6 ± 42.5 | 812.2 ± 241.7 |
| SBA (±SD) | 9.4 ± 9.5 | 23.3 ± 12.5 | 25.6 ± 14.8 | 12.6 ± 10.7 | 10.3 ± 8.5 | 20.131 ± 13.0 |
| MTBA (±SD) | 0.06 ± 0.08 | 0.15 ± 0.18 | 0.09 ± 0.09 | 0.03 ± 0.03 | 0.03 ± 0.02 | 0.06 ± 0.08 |
Species ID (alphabetical order): Abies alba (1), Acer pseudoplatanus (2), Betula pendula (3), Betula pubescens (4), Carpinus betulus (5), Castanea sativa (6), Fagus sylvativa (7), Juniperus thurifera (8), Picea abies (9), Pinus halepensis (10), Pinus sylvestris (11), Quercus ilex (12), Quercus pyrenaica (13), Quercus robur (14). PET–Potential Evapotranspiration (mm); SBA–Stand Basal Area (m2 ha−1); MTBA– Mean Tree Basal Area (m2).