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Table 2.
Effect of forest growing conditions on the taxation indicators of black poplar
| Taxation fees indicators | Types of forest conditions and forest types | |||||
|---|---|---|---|---|---|---|
| OSPF | NBPS | MBO | GWO | RWW | RWS | |
| Age of trees, years | 59 | 55 | 52 | 58 | 54 | 51 |
| Age class | VI | VI | VI | VI | VI | VI |
| Trunk height, m | 27 | 30 | 22 | 19 | 22 | 25 |
| Trunk diameter, cm | 40 | 44 | 28 | 24 | 26 | 32 |
| Bonitet class | II | I | III | IV | III | II |
| Density of stocking | 0.5 | 0.5 | 0.6 | 0.4 | 0.5 | 0.5 |
| Timber stock, m3/ha | 148 | 206 | 135 | 54 | 130 | 136 |
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