Changes in the floristic composition of beech forests (Fagus sylvatica L.) at two sites in southeastern Serbia over a period of 14 years.
European beech forests are generally poor in species. However, the composition and richness of vascular plants in these forests vary with region and site. Numerous factors can cause changes in the floristic composition and diversity of these forests over time, one of which is the type of management practice. The paper presents the results of research on the floristic composition and diversity of beech forests at two sites in southeastern Serbia (MU "Lomnička Reka" and MU "Bukovik II") over a period of 14 years. The number and cover of all plant species were recorded in the selected sample areas of each locality in 2008 and 2021. The studied beech stands grew in similar environmental conditions – on dystric cambisol and at the altitude ranging from 685 to 735 m. A total of 35 plants were registered at both sites in the period from 2008 to 2021. It was found that the average number of species per plot increased slightly in the research period at both sites. The number and cover of the species that indicate faster decomposition of organic matter and the formation of milder forms of humus such as Festuca drymeia Mert. &Koch, Asperula odorata L. and Mercurialis perennis L. did not change significantly over time. The most significant changes were related to the species that hinder natural regeneration, such as Rubus hirtus, whose increased presence was registered after those stands had been thinned, which resulted in the canopy opening.
engleski
2022
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Beech forests, diversity, vegetation changes, forest management.