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Comparison of the effects of rain on the old and new rainfall simulator
Banzetová, Diana ; Vrba, Jan (referee) ; Milerski, Rudolf (advisor)
This dissertation is focused to modeling of the rainfall in laboratory conditions by the rainfall simulator invented in VUT Brno. Results of the measuring are compared with measured values of the original rainfall simulator located in VVU VSH VUT in Brno by the Kninicky village in 1976-1980. Dissertation verifies rightness of substituting the natural rain with the rainfall simulator on bare soil in the original location, kinetic energy of the rain drops is substituted with the energy gained from the weight of the drops - the flow. Generally the dissertation determines the possibilities of the rainfall simulator's current location.
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Set of arrangements in Javornický stream floodplain for Rosnička pond water quality improvement
Špaček, Ondřej ; Hubačíková,, Věra (referee) ; Hyánková, Eva (advisor)
This thesis deals with the projection of water management and erosion control measures in the Javornický stream floodplain to improve water quality in the Rosnička pond near the town of Svitavy. In the teoretical part, the author summarized current practices in the areas of small river restorations and protection against soil erosion in the Czech Republic. In the practical part, the analasis of the area was first made, including the analysis of natural conditions, hydroecological monitoring of watercourses according to the HEM 2014 method and quantification of soil loss conditions according to the USLE method. Then, revitalization measures on the Javornický stream were designed to improve the self-purification of water and the restoration of ground water in the floodplain, as well as two variants of erosion control measures on agricultural areas to reduce the input of sediments into the hydrographic network. Finally, conceptual and technical recommendations for the implementation of these measures were formulated, as a basis for planning and decision-making of the political leadership of the town of Svitavy.
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A study of erosion control system using biotechnical conservation measures
Moravec, Jiří ; Sobotková, Veronika (referee) ; Dumbrovský, Miroslav (advisor)
The objective of the bachelor thesis was the study of soil erosion control with application of system of semi-natural measures in chosen small catchment. Digital elevation model was generated and average soil loss was determined by ArcGis tools at each erosion parcel . Design of erosion control at chosen erosion risked locality was create in Microstation software and InRoads utilities. As a type of enviromental erossion control mesures was chosen a system of a earthfill dams with the sedimentation area in combination with grassing. The thesis efforts to point the differences between the possible optimal solution and a compromise solution which respects the requirements of agricultural entities. The solution respects the trend of water retention in landscape and use of low cost measures.
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Flood prevention by using biotechnical measures
Pospíšil, Jan ; Pavlík, František (referee) ; Dumbrovský, Miroslav (advisor)
This thesis investigates the design of complex systems-natural flood control measures in the area of the cadastral municipality Jeseník nad Odrou. Based on the analysis and exploration of the territory, it was suggested a possible solution by erosion and hydrological GIS tools. To identify areas at risk of erosion and runoff conditions were used a digital elevation model, Wischmeier-Smith equation and model DesQ. Subsequently, the effectiveness was evaluated by comparing the results navžených measure erosion and runoff conditions before and after measures.
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Meziplodiny a zaplevelení obilnin
Pluschková, Zuzana
The aim of this master’s thesis was to determine the types of weeds in intercrops and subsequent cereals, to evaluate changesin weeding and to estimate the long-term effects of intercrops on cereal weeding. The weeding rate was evaluated using a numerical method. In the company Hoštická a. s., weeding was observed in various mixtures of intercrops and subsequently cultivated spring barley and maize. In a field experiment carried out at the experiment station Ivanovice na Hané weeding was observed in a barley monoculture after a sown intercrop and after skimming. The results were processed using statistical methods. Weed species were also divided according to different criteria (according to biological properties, according to origin, according to invasive status and according to harmfulness). The results show that monoculture of barley can increase the species representation of weeds. In the long term, intercrops can suppress some types of weeds. Intercrops allow the sprouts of the previous crop to emerge and prevent weeding of subsequent crops. As the diversity of intercrops increases, the list of ecosystem services expands.
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