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Structure, development and growing spruce-beech stands in the western Giant Mountains
Bulušek, Daniel ; Vacek, Stanislav (advisor) ; Michal, Michal (referee)
The subject of dissertation is to evaluate the structure, development and silviculture spruce-beech stands in the western Giant Mountains and design of differentiated silviculture of these stand in similar environmental conditions. The aim of this study was to describe the structure of trees natural regeneration and the structure of tree layer, evaluate their current development and to predict future developments and based on detailed analysis of habitat and stand conditions to propose a framework directive management of the studied stands and stands located in similar habitat and stand conditions in the Giant Mountains. For this purpose were used primarily permanent research plots (PRP) 1, 2, 8, 9 and 35 with the dimensions of 50 × 50 m, which were established and regularly monitored since 1980 (PRP 1, 2, 8 and 9), PRP 35 were established in 2004 and a number of other sub-plots. For the evaluation of natural regeneration was on each research plot marked transects 50 × 5 m (250 m2). Measurement of the natural regeneration included all individuals present at the individual transects, whose diameter breast-height diameter was smaller than 7 cm. After measuring all the data was evaluated spatial, species, height and thickness structure. To evaluate the tree layer were measured all individuals on permanent research plot with breast-height diameter greater or equal than 7 cm. The measured data were subsequently evaluated by mathematical-statistical methods. Visualization of the tree layer and development simulation was performed using the growth simulator biodynamic of forest SIBYLA. The results show that the structure stands was on individual permanent research plots very variable. Variability occurred in natural regeneration even within individual transects. Significant differences are evident in the development of stands that provide space for a wide range of near natural differentiated care within of stands type and individual types and subtypes of forest development.
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