National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Peat formation and peat meadow restoration
Krejčová, Jana ; Frouz, Jan (advisor) ; Picek, Tomáš (referee)
This work aims to clarify and describe the necessary conditions of the peat soil horizon formation. The following three types of locations were compared. Drained locations that were revitalized afterwards. Locations which were drained and never revitalized. And lastly undrained localities where the original peat horizons are still presented. It has been proven that the grounwater level differs in drained and undrained areas. However, there was no significant differrence between revitalized and non-revitalized areas in drained types of locations. The results confirmed that Sphagnum spp., which is the most important species in peat formation, dominates the plant community where the groundwater level is higher than 25 cm. If the grounwater level is lower than 25 cm below the surface, Sphagnum spp. disappears very quickly and degrades peat soil horizons. The work also proved the groundwater level directly affects plant comunities that more or less promote carbon accumulation in the soil but water level and anaerobic conditions have no direct affect on soil carbon accumulation and only affect the vegetation composition of the peat soil horizon.
The use of different types of turbines in small hydro power plants
Picek, Tomáš ; Polák, Martin (advisor) ; Adamovský, Radomír (referee)
This thesis deals with the development of hydropower through water motors. It contains the basic parameters of watercourses and classification of small hydropower plants. It describes the basic distribution, construction, operation principle and scope of application of the most widely used water turbine in small hydro power plants. The second part deals with small hydroelectric power Skála Hlaváček mill basin on the Pearl creek. It describes the history and location of the building power plant, hydropower potential of the Pearl creek in the area and overall economic assessment of investment in selected small hydropower plants.

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