National Repository of Grey Literature 135 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Sustainable production capabilities of territory, depending on climatic drought.
Skůpová, Jana ; Uhrová,, Jana (referee) ; Dumbrovský, Miroslav (advisor)
In this work, I dealt with the repercussion of drought on agriculture and land in the cadastral Jinošov. For this area, I analyzed the erosion and ratio of outflow. I also conducted a proposal of adaptation measures against erosion and water retention in the area. In conclusion, I analyzed withholding data and assessed the retention before and after the proposal of adaptation measures. The result of my work is finding that rainfall is inadequate and largely come out of the growing season, that despite all the measures fail to create on the necessary retention for the correct functioning of the landscape. Therefore it is necessary to solve water supply from other areas where is sufficient supply of water.
Drip irrigation of a vineyard and orchard near Polešovice village
Pochylá, Nikola ; Szturc, Jan (referee) ; Hyánková, Eva (advisor)
This master thesis deals with irrigation systems with a focus on drip irrigation. The first part of the thesis is devoted to the reasons for the need for irrigation due to climate change, drought and its effects on crop yields and the impact of drip irrigation on improving crop quality. It then briefly discusses the types of irrigation and their water quality requirements. The theoretical part concludes with a discussion of drip irrigation, its advantages, disadvantages, practical applications and the different components of a drip irrigation system. In the second part, a drip irrigation system is proposed for a vineyard and an apricot orchard. The course of laboratory determination of soil type in the selected area, description of the information found about the former irrigation system and analysis of the selection of a suitable source of irrigation water are described. Furthermore, the calculation of the irrigation amount for each crop and the design of the storage tank are presented. The last section is devoted to the actual design of the drip irrigation system, its components and the irrigation schedule.
Plan for drought and water scarcity
Bakota, Filip ; Coufal,, Marek (referee) ; Kučera, Tomáš (advisor)
The aim of the diploma thesis is to describe and prepare the pilot plan for drought and water scarcity for the selected locality, according to the prepared amendment of water law. Recent years have shown that drought will play a significant role in water supply in the future. Therefore, the need for tools to provide procedures and guidelines for individual administrations is more than important. The first part of the diploma thesis deals with issues of drought and water scarcity, climate change and prospects for the future. The next section describes a plan for drought and water scarcity. In the next parts of the diploma thesis, there are procedures that can mitigate or completely avoid the consequences of drought. From this informations, a pilot study of the plan for drought and water scarcity for the town of Počátky is being prepared in the next part.
The effect of temperature and drought on the glutenin proteins content in two genotypes of wheat
Vybíral, Lukáš ; Vespalcová, Milena (referee) ; Hrstka, Miroslav (advisor)
This bachelor thesis deals with the influence of water and temperature deficiency on protein content of gliadin fraction and on glutenin/gliadin ratio in two wheat varieties. The varieties selected for the experiment are called Pannonia and RGT Reform. Samples were cultivated at three different temperatures, 26 °C, 32 °C and 38 ° C, and irrigation was checked at the time of flowering. For wet-grown samples, the soil had a moisture content greater than 70 %, and drought-grown specimens grew on soil with a moisture content not exceeding 30 %. After harvest, the grains were ground into flour and glutenins and gliadins were extracted from the individual samples. SDS-PAGE was used for separation and protein quantification was performed by computer densitometry. A significant effect of the variety on individual gluten proteins was found. In the Pannonia variety, it has been found that the interaction of higher temperature and drought has no major effect on glutenin content and glutenin/gliadin ratio. The RGT variety was significantly affected by these conditions, resulting in a decrease in glutenin content and a significant change in ratio. In both varieties, the glutenin content was higher when cultivated at higher humidity but only at two higher cultivation temperatures.
The Measures Provided in Water Supply Systems in the Dry Seasons
Machač, Tomáš ; Netušil, Lukáš (referee) ; Kučera, Tomáš (advisor)
The main objective of this work is to summarize the issue of water supply during drought. In a long dry periods may occur water shortage in water resources and difficulties in providing drinking water supplies due to this situation. The first part describes the drought in terms of meteorology and there is also described the occurrence of exceptionally dry seasons in Europe and the Czech Republic. The second part is devoted to water resources and their role in water supply systems. The following section describes the current status of legislation in the Czech Republic and water companies stances on the issue of drought and the creation of appropriate measures. The last comprehensive section is devoted to design concept of concrete measures that could be implemented in the future and can reduce the impact of drought on water supply systems and whole society.
Possibilities of wastewater reuse for irrigation
Kolajová, Lucie ; Kriška-Dunajský, Michal (referee) ; Hyánková, Eva (advisor)
Bachelor thesis is based on waste water treatment system and treated waste water reuse for irrigation in the Czech Republic and in the world. Thesis describes individual types of waste water treatment and differences between vertical wetlands and biomechanical water treatment plants and different quality of effluent. It also deals with the individual ways of using this water for irrigation or infiltration. The second part is focused on practical experiment. Subject of experiment is irrigation with treated waste water from constructed wetland in Drazovice village. Experimental fields are planted with technological crops and grass. Experiment investigates final concentration of COD and ammonia and their influent on the crops and groundwater.
Extreme hydrological events in the context of urban planning
Klimeš, Zdeněk ; Dráb, Aleš (referee) ; Duchan, David (advisor)
The purpose of the bachelor thesis was to describe known extreme hydrological events and potential attitudes to minimalize their negative impacts. The thesis was written as literature recherche from different points of view, not only from a one-sided technical or ecological point. It proceeds systematically from describing the historical evolution of the subject matter through the presentation of global ecological problems, outlining the legislative background and the findings from specialised literature, to the examples of current trends. In view of the fact that the issue is so broad, the thesis treats only certain parts in detail. The subject of interest is the demonstration of separate measures against floods and droughts and the effects of their synergy concerning the minimalization of the repercussions of extreme hydrological events.
Water management study at the upper part of the Štinkovka stream
Svoboda, Vojtěch ; Vrba, Jan (referee) ; Veselý, Jaroslav (advisor)
The diploma thesis deals with the study of water management in the upper part of the Štinkovka river basin based on water management analysis. In the past, there was water in the area that is currently lost. Therefore, a terrain reconnaissance was carried out in the thesis to identify problematic areas and to collect samples for laboratory analysis, which were used for sediment studies. Since 2017, water level monitoring has been carried out using an ultrasonic sensor. Measures are proposed to increase water retention in the landscape. The possibility of sports and recreational boating on the Přední rybník pond with a connection to a cycle path and increase public interest in the area are evaluated.
Drip irrigation of agricultural land
Pikna, Jan ; Kameníčková, Ivana (referee) ; Hyánková, Eva (advisor)
This thesis is about irrigation systems, especially drip irrigation. The first part of the thesis is a research of irrigation. It mentions reasons of constructing irrigation systems and causes and types of droughts and climate change. Briefly, the types of iffigation and ways of treatment irrigation water is are mentioned. The main part of the research is about drip irrigation, its advantages and disadvantages, using in practice and different parts of drip irrigation systems. The filtration of drip irrigation water is also discussed. The second part of the thesis is a design of drip irrigation in practice. There is determinate assessment of land droughts, design of land crop in the area, determinate moisture need of plants and irrigation amount of water, and design of dripline. The practical desing is ended by design of filters and pump.
Impact of temperature and drought on gliadins content in two varieties of wheat
Seidlová, Kateřina ; Brázda, Václav (referee) ; Hrstka, Miroslav (advisor)
This bachelor’s thesis focuses on the effect of high temperature and drought on protein content of gliadin fraction on two varieties of wheat. Chosen varieties were Hyfi and Julie, cultivated at 26, 29, 32, 35 and 38 °C during flowering in watering controlled conditions. The condition for ‘wet’ samples was at least 70 % soil moisture and for ‘dry’ samples less than 30 % soil moisture. After harvesting, the seeds were milled into flour from which the gliadins were extracted with 2-chlorethanol. A-PAGE method was used for gliadin separation, quantification was carried out through computer densitometry. A significant genotype effect was discovered. Whilst temperature ranging from 26-38 °C with simultaneous drought stress had no significant effect on gliadin content of Hyfi variation, gliadin content of Julie variation shown obvious maximum at 32 °C. Therefore, Hyfi variation shown better resistance to heat stress than Julie variation. Both variations had higher gliadin content under drought stress than under good watering conditions.

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