Pěstební východiska a modely pro spontánně vzniklý březový porost – objekt Losí

The paper deals with silvicultural models for transformation of one silver birch dominated, naturally regenerated, 22.5-year-old stand, which is situated in the central part of the Czech Republic and grows in an Abieto-Fagetum illimerosum mesotrophicum forest site. Field analysis comprised measuring of the DBH and qualitative analyses of birch trees in a permanent research plot 0.25 ha in size. High growing stock – 241 m3/ha (the best site index for birch) was accompanied by 48 of the best quality birch trees with a smaller DBH – only 17 cm. In total, 10 basic models combining forest management intensity and silvicultural system were designed for this experimental stand. The SWOT analysis was conducted to compare the silvicultural models.