Figure 1
Figure 2
Objects of in situ preservation of deciduous tree species gene pool under the conditions of the Right-Bank Forest-Steppe of Ukraine
| No | Region | Objects of in situ preservation of gene pool | ||
|---|---|---|---|---|
| Forest genetic reserves area [ha] | Plus stands area [ha] | Number of plus trees, units | ||
| 1 | Vinnytsia | 1286.0 | 530.3 | 123 |
| 2 | Zhytomyr* | 2909.7 | 110.2 | 290 |
| 3 | Ivano-Frankivsk | 584.3 | 612.7 | 189 |
| 4 | Kyiv* | 351.0 | 40.9 | 152 |
| 5 | Kirovograd* | 238.0 | 0.0 | 74 |
| 6 | Odesa* | 172.8 | 5.5 | 25 |
| 7 | Ternopil | 189.4 | 0.0 | 157 |
| 8 | Khmelnytskyi | 355.9 | 99.9 | 148 |
| 9 | Cherkasy* | 319.4 | 0.0 | 137 |
| 10 | Chernivtsi* | 1826.1 | 3.3 | 276 |
| Total | 7053.5 | 872.5 | 1448 | |
Distribution of surveyed forest genetic reserves and plus stands (%) according to the dynamics of the state during the last 20 years
| Region | Reduction of the proportion of the main forest-forming species in the composition by more than 20% | Decrease in the relative density of stocking of stands below 0.7 | Decrease of the tree-breeding category (below 3.0) | Weakening of trees (average category of health condition below 3.0) |
|---|---|---|---|---|
| Vinnytsia | 7.7 | 3.1 | 1.5 | 15.4 |
| Kyiv | 7.7 | 1.5 | 1.5 | 1.5 |
| Kirovograd | 0.0 | 0.0 | 10.0 | 0.0 |
| Odessa | 4.6 | 9.2 | 4.6 | 4.6 |
| Khmelnytskyi | 4.6 | 10.8 | 0.0 | 0.0 |
| Cherkasy | 1.5 | 0.0 | 0.0 | 1.5 |
| Total | 26.2 | 24.6 | 17.7 | 23.1 |
Evaluation of precipitation and climatic parameters of genetic reserves by Vorobyov and Selyaninov indices
| Genetic reserves (tree species) | ΣР annual [mm] | ΣР for the growing season [mm] | Selianinov HTI [К = R ∙ 10/Σt] | Vorobyov Climatic Index [W = R/T° ‒ 0.0286 Т°] |
|---|---|---|---|---|
| Acer pseudoplatanus L. | 608 | 440 | 1.541 | 2.048 |
| Alnus glutinosa (L.) Gaerth. | 664 | 493 | 1.649 | 2.252 |
| Alnus incana (L.) Moench | 581 | 382 | 1.182 | 0.597 |
| Fagus sylvatica L. | 668 | 486 | 1.679 | 2.432 |
| Fraxinus excelsior L. | 633 | 466 | 1.610 | 2.220 |
| Quercus petraea (Matt.) Liebl. | 603 | 416 | 1.372 | 1.364 |
| Quercus robur L. | 632 | 444 | 1.473 | 1.691 |
| Quercus rubra L. | 646 | 463 | 1.565 | 2.022 |
| Sorbus torminalis L. | 654 | 485 | 1.584 | 1.982 |
| Average | 641 | 457 | 1.535 | 1.914 |
Number and area of forest genetic reserves for the main forest-forming tree species in the Right-Bank Forest-Steppe
| Populations of main tree species | Number, units | Proportion of units [%] | Area [ha] | Proportion of [%] |
|---|---|---|---|---|
| Acer pseudoplatanus L. | 1 | 0.8 | 1.8 | 0.0 |
| Alnus glutinosa (L.) Gaerth. | 1 | 0.8 | 3.3 | 0.1 |
| Alnus incana (L.) Moench | 1 | 0.8 | 13.0 | 0.3 |
| Fagus sylvatica L. | 43 | 36.3 | 1275.9 | 31.5 |
| Fraxinus excelsior L. | 8 | 6.7 | 517.5 | 12.7 |
| Quercus petraea (Matt.) Liebl. | 9 | 7.5 | 449.4 | 11.1 |
| Quercus robur L. | 53 | 44.9 | 1773.3 | 43.7 |
| Quercus rubra L. | 1 | 0.8 | 13.0 | 0.3 |
| Sorbus torminalis L. | 1 | 0.8 | 6.1 | 0.2 |
| Total | 118 | 100.0 | 4053.3 | 100.0 |
Distribution of the total number of units and area of genetic reserves in the Right-Bank Forest-Steppe on the prevailing soil types according to the international classification (EUFGIS)
| Soil types | Quantity [units] | Proportion from the total number [%] | Area [ha] | Proportion from the total area [%] |
|---|---|---|---|---|
| Dystric Fluvisols | 1 | 0.8 | 18.0 | 0.4 |
| Dystric Gleysols | 1 | 0.8 | 2.4 | 0.1 |
| Eutric Fluvisols | 1 | 0.8 | 15.0 | 0.4 |
| Eutric Podzoluvisols | 8 | 6.8 | 175.2 | 4.3 |
| Gleyic Phaeozems | 5 | 4.2 | 368.1 | 9.1 |
| Gleyic Podzoluvisols | 1 | 0.8 | 58.0 | 1.4 |
| Haplic Chernozems | 11 | 9.3 | 334.7 | 8.3 |
| Haplic Greyzems | 67 | 56.8 | 1903.3 | 47.0 |
| Haplic Phaeozems | 2 | 1.7 | 194.4 | 4.8 |
| Luvic Phaeozems | 16 | 13.6 | 741.6 | 18.3 |
| Rendzic Leptosols | 2 | 1.7 | 20.3 | 0.5 |
| Stagnic Podzoluvisols | 3 | 2.5 | 222.3 | 5.5 |
| Total | 118 | 100.0 | 4053.3 | 100.0 |