Keywords
forest type
growing stock
productivity difference деревостан
тип лісу
запас деревостану
різниця продуктивності
How to Cite
Abstract
Introduction
Research on forest stand productivity is extensive and encompasses various aspects, including general stand growth dynamics, the influence of climatic factors on productivity indicators, and the development of models for strategically planned productivity levels under thinning, sanitary and health-improving measures, reconstruction, reforestation, and other silvicultural activities aimed at forest formation and improvement. At the same time, there remains a need for further studies focused on assessing the influence of factors that have either not been investigated or have been insufficiently studied. One such factor is the effect of river basin location on the productivity of forest stands belonging to the same forest typological category. This study aimed to determine whether differences in productivity exist between sessile oak (Quercus petraea [Matt.] Liebl.) stands growing within the basins of different rivers during the course of stand development.
Materials and Methods
The study is based on data from the baseline forest inventory of the Uzhhorod forestry as of 1 January 2022. Differences in productivity between forest stands located within the Uzh and Latorica River basins were assessed using a comparative approach based on model growth series. Growth dynamics were analysed using a single indicator—total growing stock per hectare of forested land. Approximation of growth trends was performed using a second-order polynomial function. The identification and quantification of productivity differences in sessile oak stands from the Uzh and Latorica River basins were carried out for the most widespread oak forest types within the territory of the Uzhhorod forestry.
Results
It was found that, in the Uzh River basin compared with the Latorica River basin, the total growing stock per hectare of forested land in sessile oak stands aged 30–140 years differed only slightly and remained within the normatively accepted accuracy limits for growing stock estimation. The largest productivity differences were observed at the beginning and the end of the stand development period, whereas the smallest differences occurred between 60 and 100 years old.
Conclusions
Throughout the entire stand development period, the productivity values for sessile oak stands in both the Uzh and Latorica river basins are similar. The observed difference in productivity does not exceed 10%.
4 Figs., 1 Table, 20 Refs.
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