| Název článku: | Bylinné patro a zmlazení dřevin v sekundárních smrčinách ovlivněných kůrovcovou gradací ve vybraných zvláště chráněných územích Beskyd |
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| DOI: | 10.59269/zlv/2026/2/789 |
| Číslo: | 2 |
| Rok: | 2026 |
| Autor: | Přemysl Mácha, Tomáš Koutecký |
The impact of Norway spruce forest dieback on understory species diversity in the herb layer and spontaneous forest regeneration in nature reserves is still not sufficiently understood. This article analyzes the impact of forest dieback on several protected areas in the Moravian-Silesian Beskydy. We established 44 permanent research plots. Phytosociological relevés were taken at each plot, tree seedlings and saplings were counted, and the structure and amount of dead wood was estimated. The research did not find any statistically significant correlation between canopy disruption and species diversity and species cover in the herb layer. Plots with dead and living canopy from the same reserve were more similar than plots with live canopy from different reserves. Spontaneous forest regeneration is relatively sufficient. Norway spruce regenerates most successfully, other species are suppressed by game grazing. The amount of dead wood is high in all reserves and the structure of dead wood is very diverse. The amount of standing dead wood correlates positively with forest regeneration but lying dead wood does not prevent grazing.
