Figure 1
Distribution of beech stands involving pine in tree species composition by site indices
Figure 2
Distribution of beech stands involving pine in tree species composition by forest type
* See section Material and methods.
B2–fresh, relatively pure condition; B3 – moist, relatively pure condition; B4 –boggy, relatively pure condition; C2 –fresh, relatively rich condition; C3 –moist, relatively rich condition; Qr –Quercus robur L.; Ps –Pinus sylvestris L.; Fs –Fagus sylvatica L.; Cb –Carpinus betulus L.
Figure 3
Distribution by the share of European beech in tree species composition
Table 1
Number of plots and area of mixed beech and pine stands
| Tree species composition | Natural forest | Planted forest | ||
|---|---|---|---|---|
| area [ha] | number of plots [pcs] | area [ha] | number of plots [pcs] | |
| 5Fs5Ps | 22.4 | 7 | 1.9 | 2 |
| 6Fs4Ps | 104.0 | 16 | – | – |
| 7Fs3Ps | 6.0 | 3 | 1.4 | 1 |
| 8Fs2Ps | 66.0 | 25 | 2.6 | 3 |
| 9Fs1Ps | 36.4 | 11 | – | – |
[i] Ps – Pinus sylvestris L.; Fs – Fagus sylvatica L.
Figure 4
Distribution of beech stands involving pine in tree species composition by relative completeness and area
Table 2
The main management indices of stands with the highest growing stocks
| Age [years] | Site index | Forest type code | Relative completeness | Stock [m3/ha] | Stand composition |
|---|---|---|---|---|---|
| 20 | II | C3-CbQrFs | 0.9 | 90 | 6Fs1Ps1Bp2Cb |
| 30 | I | C3-CbQrFs | 0.6 | 150 | 5Fs1Ps1Bp3Pt + Cb |
| 40 | Ia | C2-CbPsFs | 0.81 | 200 | 10Fs + Ps + Cb + Pt + Bp |
| 50 | Ia | C3-CbFsPs | 0.7 | 270 | 4Fs2Ps4Bp + Cb |
| 60 | Ia | C3-CbQrFs | 0.8 | 400 | 8Fs2Ps + Bp + Pt |
| 70 | Ia | C2-CbQrFs | 0.7 | 350 | 8Fs2Ps + Qr + Cb |
| 80 | I | C3-CbFsPs | 0.8 | 400 | 7Fs3Ps + Qr + Cb |
| 90 | I | C2-CbPsQr | 0.7 | 380 | 8Fs1Ps1Qr + Cb |
| 100 | I | C2-CbFsPs | 0.7 | 380 | 8Fs2Ps + Qr + Cb |
| 110 | I | C2-CbQrFs | 0.7 | 320 | 8Fs2Cb + Ps + Qr |
| 120 | I | C2-CbQrFs | 0.64 | 408 | 8Fs2Qr + Ps + Bp + Cb |
[i] Qr – Quercus robur L.; Ps – Pinus sylvestris L.; Fs – Fagus sylvatica L.; Cb – Carpinus betulus L.; Bp, Betula pendula; Pt – Populus tremula.
Figure 5
Comparison of growing stocks of stands from different sources