DOI: 10.11118/978-80-7701-049-8-0124

DRUHOVÁ A ŠTRUKTURÁLNA DIVERZITA V PRALESOCH BADÍN A DOBROČ / SPECIES AND STRUCTURAL DIVERSITY IN OLD-GROWTH FOREST RESERVES BADÍNSKY AND DOBROČSKÝ PRALES

Stanislav Kucbel¹, Róbert Sedmák², Ján Pittner¹, Ladislav Šumichrast¹, Peter Jaloviar¹, Jaroslav Vencurik¹

¹ Katedra pestovania lesa, Lesnícka fakulta, Technická univerzita vo Zvolene, Masarykova 24, 960 01 Zvolen, Slovensko

² Katedra plánovania lesných zdrojov a informatikyb, Lesnícka fakulta, Technická univerzita vo Zvolene, Masarykova 24, 960 01 Zvolen, Slovensko

The objects of the study were two old-growth mixed forests located in Central Slovakia – National Nature Reserves Badín and Dobroč that have been under strict protection since 1913 and represent the oldest forest reserves in Slovakia. Besides other measurements, since the late 1970s every decade the registration of all stems with dbh > 8 cm by full callipering has been conducted on the entire areas of both reserves. The long-term data from five finished measurement campaigns provided the possibility to analyse the large-scale dynamics of tree species composition, structural and dimensional diversity regarding ongoing climate change. The analysis confirmed the trend towards increasing dominance of beech at the expense of the conifers (fir in Badín or fir and spruce in Dobroč) and the significant increment of stand volume. In Badínsky prales, the reduction of species diversity and increase of diameter diversity was observed, whereas the total diversity remained rather unchanged. Dobročský prales experienced moderate increase of the total diversity, which was the consequence especially of increasing height and diameter diversity.

Keywords: European beech, silver fir, Norway spruce, structural diversity, primeval forest

pages: 124-130, Published: 2025, online: 2025