| Název článku: | Typizácia porastových štruktúr a analýza stavu prirodzenej obnovy zmiešaného lesa v Národnej prírodnej rezervácii Mláčik |
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| Číslo: | 2 |
| Rok: | 2012 |
| Autor: | Jaroslav Vencurik, Stanislav Kucbel, Peter Jaloviar |
We performed the classification and quantification of forest stand structures and analysis of state and damage of natural regeneration in a mixed fir-beech forest that was left to the natural development after the cessation of management in 1982. In National Nature Reserve Mláčik, twenty circular research plots (500 m2) were established in 2009. In the research plots, the basic dendrometric characteristics for all living trees of the height >1.3 m, standing and downed deadwood were measured and natural regeneration (individuals with the height 0.2─1.3 m) were registered. Using the non-hierarchical cluster analysis, six types of forest stand structures were distinguished. Thirty years after the last silvicultural intervention, homogenous structures (homogenous sparse structure, homogenous structure with high volume, and homogenous structure with medium volume) still formed 60% of the stand area. On the remained 40% of the stand, more or less differentiated structures (two-layered structure without lower layer, two-layered structure with upper and lower layer, and differentiated structure with high stem density) were present that confirmed the successive and spontaneous age, diameter and height differentiation. Various stand structures influenced to the large extent also the density and tree species representation of the natural regeneration.
