Figure 1
Study area.
Figure 2
State of forest cover of the Bazoy Siberian pine forest in 1915, 1974, 2015.
Table 1
Distribution of the Bazoy Siberian pine forest by land categories (ha).
| Quarter | Wetlands | Non-forest areas | Non-Siberian pine stands | Siberian pine stands | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1915 | 1974 | 2015 | 1915 | 1974 | 2015 | 1915 | 1974 | 2015 | 1915 | 1974 | 2015 | |
| 97 | – | – | 21.4 | – | – | – | 54.9 | 54.9 | 16.3 | 5.8 | 5.8 | 22.8 |
| 98 | – | – | – | – | – | 10.5 | 161.2 | 46.6 | 63.4 | 0.7 | 115.2 | 85.9 |
| 99 | – | – | 1.4 | – | – | 2.9 | 139.0 | 61.6 | 84.2 | – | 77.4 | 39.6 |
| 100 | – | – | 5.9 | – | – | 0.01 | 52.3 | 52.3 | 26.3 | 25.8 | 25.8 | 45.8 |
| 101 | – | – | – | – | – | 10.1 | 121.4 | 15.6 | 24.1 | 5.3 | 111.14 | 92.3 |
| 102 | – | 1.4 | 1.0 | – | – | 0.5 | 117.2 | 53.4 | 50.9 | – | 62.3 | 64.6 |
| 106 | – | – | 0.6 | – | – | 2.9 | 36.5 | 36.5 | 16.6 | 63.4 | 63.4 | 79.8 |
| 109 | 15.7 | 15.7 | – | – | – | 0.5 | 2.3 | 8.6 | 13.3 | 125.7 | 119.4 | 129.8 |
| 114 | – | – | 1.0 | – | – | – | – | 17.0 | 25.6 | 92.7 | 75.7 | 66.1 |
| 115 | 4.7 | 4.7 | – | – | – | – | – | 37.8 | 32.6 | 73.6 | 35.8 | 45.8 |
| 116 | 1.7 | 1.7 | 1.0 | – | – | – | – | 52.3 | 36.2 | 57.0 | 4.7 | 21.5 |
| 119 | 18.1 | 18.1 | – | – | – | 11.4 | – | 2.3 | 23.6 | 114.1 | 111.7 | 97.3 |
| 120 | 8.2 | 8.2 | 0.6 | – | – | – | – | 10.4 | 11.5 | 34.8 | 24.4 | 30.9 |
| 121 | 6.5 | 6.5 | – | – | – | 13.7 | – | – | 76.0 | 95.9 | 95.9 | 12.2 |
| Sum | 55.0 | 56.4 | 32.9 | 0.0 | 0.0 | 52.5 | 684.6 | 449.4 | 500.5 | 694.7 | 928.6 | 834.4 |
Figure 3
Distribution of forest area of the Bazoy Siberian pine forest by forest type.
Table 2
Characteristics of stands of the Bazoy Siberian pine forest as at 2015.
| Composition, % | Age, years | Height, m | DBH, cm | Yield class, units | Forest type | Relative sum of basal areas, units | Trunk volume, m3 ha−1 | Average size of one stand, ha |
|---|---|---|---|---|---|---|---|---|
| 66S20B7P4Sp3A | 111±1 | 24.8±0.1 | 38.4±0.6 | 2.3±0.2 | gr | 0.64±0.02 | 394±15 | 12.6±4.1 |
| 77S13Sp7B3P | 131±1 | 24.9±0.2 | 36.6±1.0 | 2.6±0.1 | gr | 0.60±0.01 | 356±7 | 12.0±2.9 |
| 67S25Sp8B | 164±3 | 25.8±0.2 | 43.5±0.6 | 2.8±0.1 | gr | 0.60±0.02 | 389±15 | 9.2±2.8 |
| 44S34B22Sp | 138±2 | 23.2±1.2 | 35.2±2.3 | 3.4±0.2 | gr-sw | 0.54±0.02 | 286±16 | 3.8±1.0 |
| 46S39Sp11B4P | 155±2 | 23.1±0.5 | 40.5±1.8 | 3.4±0.2 | gr-sw | 0.51±0.04 | 274±21 | 4.9±1.6 |
| 71Sp19S10B | 140±5 | 22.1±0.5 | 28.4±1.6 | 3.4±0.2 | gr-sw | 0.65±0.02 | 236±12 | 3.7±0.8 |
| 54A35B10P1S | 53±7 | 19.8±2.8 | 22.6±3.0 | 2.1±0.4 | gr | 0.68±0.04 | 226±37 | 4.8±1.9 |
| 41P34B14S7A | 73±9 | 22.9±2.8 | 30.0±3.3 | 1.1±0.1 | gr | 0.69±0.01 | 246±33 | 3.4±0.6 |
| 94B4Sp2S | 76±1 | 18.7±0.3 | 21.0±0.5 | 5.2±1.8 | gr-sw | 0.61±0.01 | 129±38 | 2.1±0.3 |
| 70B14A8S4P4Sp | 77±1 | 24.3±0.4 | 28.1±0.6 | 2.0±0.1 | gr | 0.65±0.02 | 198±9 | 5.4±0.9 |
[i] Explanations:
[ii] Composition: S – Siberian pine Pinus sibirica Du Tour, Sp – Siberian spruce Picea obovata Ledeb., A – Aspen Populus tremula L., B – Silver birch Betula pendula L. and white birch Betula pubescens Roth., P – Scots pine Pinus sylvestris L.
[iii] Forest type: gr – grassy, gr-sw – grassy-swamp
Figure 4
Distribution of non-forest land categories of the Bazoy Siberian pine forest.