Development of the spruce natural regeneration on mountain sites in the Sumava Mts.
2006
Ulbrichova, I. | Remes, J. | Zahradnik, D.
The aim of this study was to evaluate the growth and development of naturally regenerated spruce stands in Modrava and Plechy areas (Czech Republic) which represent the first and late bark beetle attack areas. The study was done on 13 permanent research plots, partially covered with vital tree layer and canopy cover and partially characterised by open or none canopy, due to bark beetle attack. The regeneration is sufficient (more than 12,000 pcs/ha on average in the living stands and almost half of this amount in the declined stands) on the both types of plots. Faster growth is usually observed in the stands with dead trees. The occurrence of dead wood has a positive effect on the regeneration. On the contrary, the presence of fern and grasses has a negative impact.
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