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Using the Erosion Potential Method in the Czech Republic
Hloušek, Jakub ; Larišová, Lucie (referee) ; Dumbrovský, Miroslav (advisor)
The aim of this thesis was the evaluation of the loss of soil for the area of interest, located in the north-western part of the Němčického basin, in the district of Blansko. The calculation was made using two methods, namely erosion potential method (EPM), commonly used in Serbia and the Wischmeier-Smith universal soil loss equation (USLE), used in Czech Republic. Finally, both of these methods were compared with each other. Both methods use a different method of calculation. USLE method utilizes the universal equation for calculating the long-term average soil loss per year (G), the EPM method utilizes equation for specific average annual soil loss (Wsp, Wy). The calculation was performed with both methods in program ArcGIS while the USLE method was also supplemented with calculation of the factor (LS) with USLE2D program. When comparing the soil loss each of evaluated areas, the EPM achieved higher values of soil loss in the most of them. In contrast to the USLE method, the EPM the total loss of the soil from the evaluated areas also accounted the soil loss from forest areas. In terms of accuracy of the achieved real world results, it was determined that the conditions in the Czech Republic are more suitable for the USLE method and not only due to more accurate data input, but also because with EPM there is no factor that would better reflect the topographic factor and conditions of surface runoff in the territory.
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Stabilization the ways of concentration surface runoff
Vlčanová, Veronika ; Dohnal, David (referee) ; Dumbrovský, Miroslav (advisor)
The subject matter of this thesis is the identification and stabilization the ways of concentration surface runoff in the catchment area, Opatov na Moravě. Identification was based on the GIS analysis and it was using a digital terrain model. Hydrological model DesQ was used for calculation direct surface runoff individual ways of concentration runoff and software Dimenzov was used for dimension profiles of ways. Theoretically it has been described possible ways of stabilizing. On the basis of previous findings that was chosen for stabilization of individual ways in the area of interest.
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