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Limestones of Český kras and their use for hydraulic limes and natural cements
Kozlovcev, Petr ; Kuchařová, Aneta (referee) ; Přikryl, Richard (advisor)
ii Summary This bachelor thesis is focused on the possible use of limestones from the Český kras area for the preparation of alternative inorganic binders, namely for hydraulic limes and natural cements. In the introductory chapters, the geology of Český kras is described. Silurian and Devonian beds make the most important lithostratigraphic members. Then, the history of limestone exploitation and processing is explained. It is followed by the petrographical characteristic of limestone - its mineralogical and chemical composition, the structure and the texture, the classification, the genesis and the diagenesis. Major part of the thesis focuses on inorganic binders - their basic characterization and evaluation. Limestones are discussed from the point of their general use in the industry. The limestones from the Český kras area are analyzed based on their chemical composition (based on the previously reported data) and evaluated for the potential use for burning of hydraulic limes and natural cements.
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Productivity dynamics of herb layer in the thermophilous oakwood in the Nature Reservation Na Voskopě (Czech Karst) with respect to the solar radiation intensity
Mevald, Ondřej ; Černý, Tomáš (advisor) ; Josef, Josef (referee)
The Nature Reserve Na Voskopě is a special site where a long-term experiment was established in 2013, dealing with the switch of a long abandoned coppice back to its actively managed form. The project aims to examine the long-term impact of the proposed measures on the structure and diversity of plant species in herb layer especially in lighter woods at lower altitudes. The specific aim of this study was to examine the hypothesized crucial role of light conditions on the dynamics of plant biomass production in the undergrowth of such experimentally opened up thermophilous oak-dominated stand. A design was set up based on 40 permanent plots, where there were taken biomass samples from the herb layer in 2015. Further on, hemispherical images of forest canopy were photographed in the centre of each permanent plot. These images were evaluated in the analytical program WinScanopy, which calculates the amount of direct and diffuse radiation. The obtained datasets were evaluated by the regression analysis. The only decisive variable affecting the productivity of the herb layer turned to be diffuse radiation. The biomass data were also compared with light conditions sampled in the previous season (2014) as a part of ongoing experimental research. Season 2014 is characterized as a normal one and we managed to find a much stronger relationship between light conditions in 2014 and biomass productivity in 2015. Light conditions in season 2015 were significantly affected by the extremely dry and hot weather leading to strong defoliation of forest canopy. Still, we managed to demonstrate the positive impact of light conditions for the production of herb layer biomass. Weather extremes may also indicate an increase in biomass production in the next season, since a significant proportion of nutrients remained unused in the soil due to stopping the growth of vegetation. The current composition of the vegetation is very often determined by the extreme events in the abiotic environment occurring not long ago. Hemispherical images also proved as a very effective way to determine the light conditions, so it is also recommended to use for further research.
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Bryophytes of dry grasslands in southern part of PLA Český kras
TENČÍK, Aleš
The aim of the thesis was to survey the occurrence of mosses in the different types of calcareous dry grasslands in the southwestern part of the Bohemian Karst and assess the impact of major abiotic and biotic factors to their diversity.At seven habitat types was acquired a total of 35 plots of 1x1 m. The most important factor influencing the diversity of mosses turned out to be the degree of coverage of herb layer markedly influenced by used type of management.Dry grasslands with Festuca pallens (T3.1) and Sesleria grasslands (T3.2) appeared to be rich in moss species. Conversely mossy low diversity here is presented by broad-leaved dry grasslands (T3.4).
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Organization and conduct of a geological excursion to the Bohemian Karst
RYDRYCHOVÁ, Jitka
This Master thesis summarizes the characteristics of geological conditions in the Bohemian Karst and presents a proposal for organizing a geological excursion for lower-level gymnasium students or ninth-grade pupils to this territory. The goal of this Thesis is to set up a methodological proposal for preparing an excursion to the Bohemian Karst. It sums up the theoretical assumptions for organizing a geological excursion, lays down methodological proposals for on-site work and compiles worksheets. This Master thesis was created as a part project GA JU 065/2010/S
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Habitat association of moths (Lepidoptera: Macrolepidoptera) in a structurarly diverse nature reserve (Koda National Nature Reserve, Cesky Kras)
ZÁVITKOVSKÁ, Lenka
Based on light trapping carried out in 2010, I studied moth communities of the Koda National nature reserve, part of Český kras landscape protected area, in order to compare moth communities inhabiting major biotope types within the reserve. The obtained material consisted of 295 species in 4455 individuals. Steppe enclaves hosted more species than overgrown coppices and beech-dominated high forests. Ordination analyses distinguished between steppe and forest biotopes. Steppe catches differed from forest catches in habitat associations of constituent species (more species of grassland habitats), whereas the two forest types did not differ in this. Identical patterns applied for all moths analysed together and for analyses restricted to Geometridae and Noctuidae moths. Steppic enclaves represent the most valuable sites within the Koda reserve.
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Aerophytic cyanobacteria from limestone quarry Malá Amerika
KOČVARA, Luboš
The presented work was aimed on discovery of diversity of aerophytic cyanobacterial vegetation of Malá Amerika limestone quarry located in Český kras Protected Landscape Area, Czech Republic. It was found and determinated 20 morphotypes of cyanobacteria. Moreover, putative effects of light, water availability and a distance from water level on species diversity have been studied. It has been shown that the limiting factor on this locality is humidity, not light.
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Potential of rural tourism as a development factor for Berounsko and Křivoklátsko
BROŽENSKÁ, Lucie
This diploma thesis evaluate tourism in Karlštejnsko and Křivoklátsko regions. These questions were firstly evaluated from sight of quantity which shown offer range of touristic activities and activities in selected regions. The points of the next research are estimations of government, promoter subjects and information centres in question of importance of case country-side tourist traffic and level of its support from public domain.
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Spontaneous succession of vegetation of abandoned quarries in the Bohemian Karst: Occurrence of species in quarries and their surroundings
KAREŠOVÁ, Petra
Variation of vegetation during spontanneous succession was researched in ten limestone quarries in the Bohemian Karst in central part of the Czech Republic. Five abandoned quarries surrounded by woodland and five quarries with grassland prevailing in the surroundings were chosen. The age of quarries varied from 33 to 97 years. The complete list of plant species was recorded for each quarry and near surroundings (up to 100m).Resulting analyses demonstrated the close relationship between the occurrence of species in the quarries and their surroundings. The quarries may act as refugia for rare and retreating specie
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