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Hodnocení struktury bylinného patra lesních porostů založených na bývalé zemědělské půdě v okolí Huslenek
Kretová, Hana
This thesis deals with the development of phytocoenosis in spruce stands at a different age based on the farm lands nearby the village of Huslenky. In addition to that the development of the soil environment was monitored on this forest cover. One of the aims was to try to create a series of successional development phytocoenosis on the wooded farm land. Field survey consisted of phytocenological imaging in nineteen different age stands. It was made a total of 55 releves. For pedological surveys were dug seven soil pits and from them were taken soil samples from the Ah and B horizons. The interim results of the analyses are confronted with a typological map and it is evaluated whether it is really possible to differentiate the surface typologically on the selected locations. The results are divided into three parts. In botanical outputs set of data is broken down into 4 groups according to their similarity. Pedological output value pH and saturation of adsorption complex. Also it is evaluated ecological demands of plants. The discussion is distributed and commented on the process and results of the thesis, or the causes and consequences of phenomena occurring typically in the similar spruce stands.
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Comparison of forest stands on afforested agricultural vs. continuously forested soil
Květoň, David ; Podrázský, Vilém (advisor) ; Jiří, Jiří (referee)
There are many differences between environment of woodlands on afforested agricultural lands and continuously forested soils. These differences are able to persist for many years after afforestation. It is anticipated differences in the growth and condition of these stands. This thesis deals with these differences and aims to compare them. There were compare differences between spruce stands and larch stands and differences between thickness of overlying humus in four plots of the size 0,25 ha, in the area laying near to village Brložec, in region of Karlovy Vary. Results moreless confirm a greater production of both species of trees on former agricultural lands, they indicate greater production potential of larch compared with spruce and they clearly show thicker humus to continuously forested areas.
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