Current state and productivity of Scots pine modal stands of the Forest Steppe of Ukraine.
In: Scientific Journal Ukrainian Journal of Forest & Wood Science, Jg. 14 (2023), Heft 1, S. 105-123
academicJournal
Zugriff:
The development of regulatory and reference support for the inventory assessment of the state of modal stands is an urgent issue, since it allows obtaining reliable and up-to-date information on the current state of existing forests. The purpose of the study was a statistical substantiation of the division of pine stands into groups by region of growth and stand composition,and their detailed inventory characteristics with an analysis of the distribution in the Forest-Steppe and their productivity. To conduct the study, a stand-wise database of the Production Association “Ukrderzhlisproekt” for Forest-Steppe zone of Ukraine was used. Using a number of non-parametric criteria for evaluating samples (Kruskal-Wallis one-way analysis of variance, the median criterion, Jonckheere-Terpstra test), the study established a difference in the stands parameters of the samples under study and divided the stands of the Forest-Steppe zone into four groups. The main task was to describe the current state of modal pine stands of the Forest-Steppe zone of Ukraine for selected groups, with a detailed distribution of areas and stocks according to the main stand parameters According to the results of the database analysis, it was found that about 92% of the total area of pine stands of the Forest-Steppe zone are artificial forests. Depending on the region of growth, the stands were divided into the left- and right-bank parts of the Forest-Steppe, in composition – into pure and mixed stands. Within the groups under study, the distribution of areas and stocks of pine stands was analysed according to site index classes, types of forest-growing conditions, forest types, relative stand density, and age groups. Site index classes in all groups are dominated by high site index stands of I and Ia site index classes. The proportion of high-grade mixed stands is greater compared to pure stands. In terms of the forest-growing conditions, stands in condition B2 dominate in all groups under study. From the left bank to the right bank, there is an increase in soil fertility from condition B to condition C, and this dependence is also observed from pure to mixed stands. Productivity in terms of the average growing stock of mixed stands of the rightbank and left-bank parts of the Forest-Steppe is very close and considerably less than the stocks of pure stands. The presented research results can be used by scientists as a description of the modal inventory characteristics of the Forest-Steppe region and for the grouping of experimental data when compiling forestry and forest inventory standards. [ABSTRACT FROM AUTHOR]
Titel: |
Current state and productivity of Scots pine modal stands of the Forest Steppe of Ukraine.
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Autor/in / Beteiligte Person: | Terentiev, Andrii ; Bala, Oleksandr ; Lakyda, Petro ; Bondar, Hennadii |
Zeitschrift: | Scientific Journal Ukrainian Journal of Forest & Wood Science, Jg. 14 (2023), Heft 1, S. 105-123 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 2664-4452 (print) |
DOI: | 10.31548/forest/1.2023.105 |
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