Figure 1.
Figure 2.
Figure 3
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Distribution of trees by vitality status on SPs, 2016–2023
| Sample plots | Tree status | CABE | ACPL | QURO | TICO | ULLE | ROPS | FREX |
|---|---|---|---|---|---|---|---|---|
| 2016 (Schepaschenko et al. 2019) | ||||||||
| 1 | Alive | - | 142 | 98 | 1 | 2 | 5 | - |
| Snag | - | 6 | 6 | - | - | - | - | |
| 2 | Alive | 215 | 36 | 33 | 23 | - | - | - |
| Snag | 2 | - | 5 | - | - | - | - | |
| 2017 (Schepaschenko et al. 2019) | ||||||||
| 3 | Alive | 181 | 8 | 7 | 6 | 10 | 1 | - |
| Snag | 1 | - | - | - | - | - | - | |
| 4 | Alive | 57 | 73 | 63 | 9 | 1 | - | 1 |
| Snag | 8 | 2 | 8 | 4 | - | - | - | |
| 2023 | ||||||||
| 1 | Alive | - | 134 | 69 | 1 | 2 | 5 | - |
| Snag | - | 7 | 30 | - | - | - | - | |
| Missing | - | 7 | 5 | - | - | - | - | |
| 2 | Alive | 201 | 34 | 23 | 23 | - | - | - |
| Snag | 15 | 2 | 15 | - | - | - | - | |
| Missing | 1 | - | - | - | - | - | - | |
| 3 | Alive | 157 | 7 | 7 | 5 | 10 | 1 | - |
| Snag | 24 | 1 | - | 1 | - | - | - | |
| Missing | 1 | - | - | - | - | - | - | |
| 4 | Alive | 44 | 67 | 54 | 4 | 1 | - | 1 |
| Snag | 16 | 7 | 17 | 9 | - | - | - | |
| Missing | 5 | 1 | - | - | - | - | - | |
Comparison of above-ground live biomass indicators of tree stands using different assessment approaches, 2016–2023
| Sample plot | Year | Growing stock volume according to forest management planning, m3·ha-1 | Growing stock volume of SP, m3·ha-1 | Deviation, % | Above-ground live biomass of the stands according to the models (Shvidenko et al. 2007), t·ha-1 | Above-ground live biomass of SP, t·ha-1 | Deviation, % |
|---|---|---|---|---|---|---|---|
| 1 | 2016 | 350 | 359 | -3 | 275 | 310 | -11 |
| 2023 | 370 | 353 | 5 | 291 | 298 | -2 | |
| 2 | 2016 | 320 | 507 | -37 | 293 | 401 | -27 |
| 2023 | 340 | 407 | -16 | 302 | 312 | -3 | |
| 3 | 2017 | 290 | 378 | -23 | 197 | 303 | -35 |
| 2023 | 300 | 412 | -27 | 202 | 329 | -39 | |
| 4 | 2017 | 330 | 289 | 14 | 183 | 270 | -32 |
| 2023 | 350 | 299 | 17 | 196 | 275 | -29 |
The total live biomass of forest stands of the Feofania Park, 1958–2023
| Year | Area, ha | Live biomass of the forest, thousands of tons | Total live biomass, thousands of tons | Live biomass density, t-ha-1 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| stem over bark | bark | branches | leaves | roots | green forest floor | understory and under growth | ||||
| 1958 | 130.6 | 13.7 | 2.1 | 2.9 | 0.3 | 5.4 | 0.5 | 0.5 | 23.3 | 178 |
| 1979 | 144.7 | 24.8 | 3.7 | 5.1 | 0.4 | 9.0 | 0.6 | 0.6 | 40.5 | 280 |
| 1991 | 136.7 | 18.5 | 2.8 | 3.7 | 0.3 | 6.7 | 0.7 | 0.5 | 30.4 | 222 |
| 2000 | 135.7 | 19.3 | 2.8 | 3.8 | 0.3 | 6.5 | 0.7 | 0.8 | 31.4 | 231 |
| 2004 | 115.5 | 16.3 | 2.4 | 3.1 | 0.2 | 5.6 | 0.6 | 0.7 | 26.5 | 230 |
| 2013 | 107.0 | 12.5 | 1.8 | 2.3 | 0.2 | 4.3 | 0.6 | 0.6 | 20.5 | 191 |
| 2016 | 107.0 | 13.2 | 2.0 | 2.5 | 0.2 | 4.6 | 0.6 | 0.6 | 21.6 | 202 |
| 2021 | 107.0 | 14.4 | 2.1 | 2.7 | 0.2 | 4.7 | 0.6 | 0.6 | 23.0 | 215 |
| 2023 | 107.0 | 15.5 | 2.4 | 3.1 | 0.2 | 5.6 | 0.7 | 0.7 | 25.8 | 241 |
The carbon storage in live biomass components_ Data up to 2013 adapted from the IEE sources (Bilous et al_ 2017)_
| Year | Area, ha | Carbon storage in live biomass components, GgC | Total carbon storage, GgC | Carbon density, MgC·ha-1 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| stem over bark | bark | branches | leaves | roots | green forest floor | understory and undergrowth | ||||
| 1958 | 130.6 | 6.8 | 1.0 | 1.4 | 0.1 | 2.7 | 0.2 | 0.2 | 11.6 | 89 |
| 1979 | 144.7 | 12.4 | 1.9 | 2.5 | 0.2 | 4.5 | 0.3 | 0.3 | 20.2 | 140 |
| 1991 | 136.7 | 9.2 | 1.4 | 1.8 | 0.1 | 3.4 | 0.3 | 0.3 | 15.1 | 111 |
| 2000 | 135.7 | 9.6 | 1.4 | 1.9 | 0.1 | 3.2 | 0.3 | 0.4 | 15.6 | 115 |
| 2004 | 115.5 | 8.2 | 1.2 | 1.6 | 0.1 | 2.8 | 0.3 | 0.3 | 13.2 | 115 |
| 2013 | 107.0 | 6.3 | 0.9 | 1.2 | 0.1 | 2.1 | 0.3 | 0.3 | 10.2 | 95 |
| 2016 | 107.0 | 6.6 | 1.0 | 1.3 | 0.1 | 2.3 | 0.3 | 0.3 | 10.8 | 101 |
| 2021 | 107.0 | 7.2 | 1.1 | 1.4 | 0.1 | 2.3 | 0.3 | 0.3 | 11.6 | 108 |
| 2023 | 107.0 | 7.8 | 1.2 | 1.6 | 0.1 | 2.8 | 0.4 | 0.4 | 13.0 | 122 |
Indicators of above-ground live biomass of SPs, 2016–2023
| Sample plots | Year | Above-ground live biomass, t∙ha-1 | Snags, t∙ha-1 | Total biomass of the stand, t∙ha-1 | ||||
|---|---|---|---|---|---|---|---|---|
| stem | coarse branches | small branches | leaves | total biomass | ||||
| 1 | 2016 | 201 | 22 | 70 | 17 | 310 | 3 | 313 |
| 2019 | 201 | 23 | 66 | 16 | 306 | 15 | 321 | |
| 2020 | 196 | 22 | 62 | 15 | 295 | 21 | 316 | |
| 2021 | 191 | 22 | 60 | 15 | 288 | 25 | 313 | |
| 2023 | 199 | 23 | 61 | 15 | 298 | 21 | 319 | |
| 2 | 2016 | 286 | 42 | 59 | 14 | 401 | 8 | 409 |
| 2019 | 287 | 42 | 57 | 14 | 399 | 18 | 417 | |
| 2020 | 287 | 42 | 57 | 14 | 399 | 18 | 417 | |
| 2021 | 294 | 43 | 58 | 14 | 410 | 20 | 430 | |
| 2023 | 233 | 33 | 38 | 9 | 312 | 65 | 377 | |
| 3 | 2017 | 220 | 39 | 35 | 8 | 303 | 0 (0.1) | 303 |
| 2019 | 233 | 42 | 35 | 8 | 318 | 2 | 320 | |
| 2020 | 233 | 41 | 35 | 8 | 318 | 3 | 321 | |
| 2021 | 239 | 43 | 37 | 9 | 328 | 0 (0.3) | 328 | |
| 2023 | 240 | 43 | 37 | 9 | 329 | 6 | 335 | |
| 4 | 2017 | 160 | 20 | 72 | 18 | 270 | 10 | 280 |
| 2019 | 168 | 22 | 73 | 18 | 281 | 11 | 292 | |
| 2020 | 162 | 21 | 70 | 17 | 271 | 20 | 291 | |
| 2021 | 165 | 22 | 69 | 17 | 273 | 19 | 292 | |
| 2023 | 167 | 22 | 69 | 17 | 275 | 24 | 299 | |
Description of studied forest stands (Schepaschenko et al_ 2019)
| Sample plot | Year of SP establishment | Coordinates | Age, years | Site index | Area, ha | Number of trees |
|---|---|---|---|---|---|---|
| 1 | 2016 | 50.335422N | ~80 | I | 0.51 | 260 |
| 2 | 50.343174N | ~180 | I | 0.88 | 314 | |
| 3 | 2017 | 50.343387N | ~180 | Ia | 0.44 | 214 |
| 4 | 50.343335N | ~80 | I | 0.29 | 226 |