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Drought as a topic in geography teaching
Navrátilová, Denisa ; Matějček, Tomáš (advisor) ; Kocová, Tereza (referee)
The diploma thesis deals with the teaching of the issue of drought, which in recent years has significantly affected the territory of the Czechia. With the ongoing climate change, it is necessary to prepare for more significant extremes of weather, which will be demonstrate by the longer periods of droughts, which consequences will be highlight by inappropriate anthropogenic interventions and improper water management. Therefore, it is important to include this issue in school education, so that students realize that our territory is also endangered by this problem, what are its causes and that they themselves can contribute to their mitigation. The main aim of this thesis is to create a model teaching dealing with the issue of drought. The questionnaire survey found out that major part of teachers devotes at least part of the lessons to the topic and that the main cause of non-devotion is lack of time and fear of incorrect grasping of the topic. A number of respondents were contacted based on the questionnaire survey, with whom semi-structured interviews were organized in order to obtain more detailed information and obtain examples of good practice. Within the questionnaires and interviews was investigate issue of the occurrence of misconceptions among pupils and work with them. Based on all the...
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Changes of geochemistry of surface water in selected catchments of the Ore Mountains
Navrátilová, Denisa ; Matoušková, Milada (advisor) ; Benešová, Libuše (referee)
This master thesis focuses on an analysis of surface water chemistry, long-term trends and the impact of drought on changes in concentrations of selected parameters in the upper Svatava, Rolava and Načetínský potok basins located in the Ore Mountains. Research on water quality in mountain spring areas is important, the consequences of various changes can be easily observed there. This work analyses the changes in surface water chemistry and discusses their possible causes, especially the impact of peat bogs and dry episodes. The parameters of water temperature, conductivity, pH, BOD5, COD, TOC, concentration of nitrate nitrogen, total phosphorus, phosphates, sodium, potassium, calcium and iron were investigated for the period 1993-2018. The available data are analysed using evaluation methods according to ČSN 75 7221 as well as box plots, Pearson correlation coefficient, PCA analysis and Mann-Kendall test. The greatest anthropogenic influence exhibited in Svatava, almost all concentrations reached their highest values there. In the Rolava and Načetínský potok basins, the influence of peatlands manifested itself by increasing the concentrations of iron, TOC and COD. The results of trends showed an increase both in pH and in surface water temperature related to an increase in air temperature, on the...
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Trends of hydroclimatic factors in selected catchments of the Ore Mts.
Navrátilová, Denisa ; Matoušková, Milada (advisor) ; Fraindová, Kateřina (referee)
The bachelor work deals with identification of the trends in data series of the chosen hydroclimatic factors (temperatures, rainfall and runoff) of the upper Svatava River basin and of the Načetín Brook which both drained the Ore Mountains. The main aim of the thesis is identification of the trends of both study catchments and their comparative analysis. The study uses mean daily discharges data from the gauging stations Klingenthal and Rothenthal and also from the German climatic stations situated near study catchments. The introductory part describes physical-geographic characteristics of study catchments. The main attention is paid to the analysis of temperatures, rainfall and runoff, e.g. by the method of linear regression, simple sum curves and by Mann-Kendall statistic test. More detailed analysis of the runoff was done using IHA software. Results of analysis show a significant annual trend of temperatures increasing and runoff decreasing during the examined period. The most significant changes in temperatures and runoff is recorded in the spring and summer seasons. Key words: outfall, rainfall, temperatures, the change of the rainfall-outfall régime, Mann- Kendall test, IHA analysis
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