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Design of erosion and flood control measures contributing to water retention increasing in the landscape
Krátký, Jindřich ; Uhrová,, Jana (referee) ; Sobotková, Veronika (advisor)
The introduction of this bachelor’s thesis is focused on analyzing the territory of interest – the cadastral area of the municipality of Vevčice in the South Moravian Region of Czechia. Using ArcMap, USLE2D and DesQ-MaxQ software, the erosion and runoff conditions are evaluated, including the determination of the so-called critical profiles, where the concentrated surface runoff and sediments are currently posing a threat to the built-up area. On the basis of the analyses carried out, erosion and flood control measures have been designed. The measures should ensure the reduction of the average soil loss on agricultural land to permissible values, minimization of peak flows and protection of the inhabitants of Vevčice and their properties. Concurrently, the measures should contribute to water retention in the landscape. Furthermore, locations where the construction of small waterbodies such as a small reservoir, pond or wetland could be considered in the future, positively impacting the retention capacity of the local landscape, have been identified in the area of concern.
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Identification of suitable places for retaining water in the landscape in the landscape in watersheds of the fourth order in the Trkmanka watershed
Valný, Patrik ; Larišová, Lucie (referee) ; Sobotková, Veronika (advisor)
The bachelor thesis is focused on the identification of suitable places for water retention in the landscape. The evaluated area consists of three selected catchments of the 4th order in the Trkmanka River basin in the South Moravian Region. In the first part of the work the analysis of the area of interest was carried out. Using ArcGIS, USLE2D and DesQ – MaxQ software, erosion and runoff conditions were evaluated to determine the critical points and critical profiles threatening the intravilanias of the municipalities by surface runoff and sediments. Also, the locations of the final profiles that threaten, for example, local roads were identified, these were then subjected to a field survey and photodocumentation was taken. Subsequently, small reservoirs were designed at the assessed and morphologically suitable locations. Finally, from the evaluated erosion and runoff data, a ranking of vulnerability was established.
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Design of erosion and flood control measures contributing to water retention increasing in the landscape
Krátký, Jindřich ; Uhrová,, Jana (referee) ; Sobotková, Veronika (advisor)
The introduction of this bachelor’s thesis is focused on analyzing the territory of interest – the cadastral area of the municipality of Vevčice in the South Moravian Region of Czechia. Using ArcMap, USLE2D and DesQ-MaxQ software, the erosion and runoff conditions are evaluated, including the determination of the so-called critical profiles, where the concentrated surface runoff and sediments are currently posing a threat to the built-up area. On the basis of the analyses carried out, erosion and flood control measures have been designed. The measures should ensure the reduction of the average soil loss on agricultural land to permissible values, minimization of peak flows and protection of the inhabitants of Vevčice and their properties. Concurrently, the measures should contribute to water retention in the landscape. Furthermore, locations where the construction of small waterbodies such as a small reservoir, pond or wetland could be considered in the future, positively impacting the retention capacity of the local landscape, have been identified in the area of concern.
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Impact of small water reservoirs on the occurrence of extreme runoff episodes in the upper Otava River basin
Šmrhová, Zuzana ; Kocum, Jan (advisor) ; Jeníček, Michal (referee)
The main objective of this thesis is to prove the influence of small water reservoirs on the extreme runoff situations in a watershed of upper Otava River. The system of small water reservoirs represents an effective part of flood protection, which can be realized without greater changes of landscape. The research part of this thesis includes a summary of knowledge about rainfall-runoff process, small water reservoirs and hydrological modeling. The work is applied to model watershed of Roklanský creek, which is situated in a central part of Šumava Mountains. There are a few rain gauges and laser sensors situated in this watershed, whose are needed for the modeling process. The thesis contains a selection of appropriate data and methods for a creation of digital model of terrain. This digital model of terrain is used for creation of most of the parameters, whose are used for modeling of rainfall- runoff process. This modeling is done in hydrological modeling program HEC - HMS (Hydrologic Engineering Center - Hydrologic Modeling System). HEC - HMS is one of the most used simulation programs. The main part of the thesis is a simulation of rainfall-runoff process, applied to two real rainfall-runoff episodes. Next important part of the thesis is a comparison of this simulation with and without...
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Small water reservoirs in the Krkonoše Mountains: What would their regeneration bring?
Šádková, Eva ; Janský, Bohumír (advisor) ; Daňhelka, Jan (referee)
This thesis deals with the evaluation of influence of small water reservoirs on the extreme runoff events (floods and drought) in the upper Úpa River basin. It summarizes knowledge about both hydrological extremes and their manifestations in the basin of interest as well as about small water reservoirs in the sense of water retention measures and their possible importance during the periods of low flows or floods. In this thesis two localities of possible reservoirs at place of former splash dams in Obří důl and on the Lysečinský Brook were chosen. To assess the influence of small water reservoirs on runoff during two chosen flood events and two periods of drought, the hydrological model HEC-HMS was applied. The results of model simulation proved a positive influence of reservoirs on the reduction of flood peaks (except for a concurrence of transformed flood waves in the outlet that occurred during one flood event), but the effect was decreasing with the increasing catchment area and the intensity of precipitation and with smaller storage capacity of a reservoir. During the low flows, a positive influence of reservoirs was observed as well, relating to the release of stored water. However, the ability of a reservoir to reduce deficit volume and to balance the flow was decreasing with smaller...
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Splash dams in the Krkonoše (Giant) Mountains - the past and the present
Šádková, Eva ; Janský, Bohumír (advisor) ; Jeleček, Leoš (referee)
The idea of renovation of former small water reservoirs (splash dams) that were used while log driving is coming to the fore in connection with an effort to gradually increase water retention capacity and to reduce runoff variability in headstream areas. On the basis of study of historical sources and literature and own field research this bachelor's thesis describes causes of origin and period of origin of the Giant Mountain's splash dams and deals with the function and the location of the splash dams in the field. The thesis also focuses on their current state. A total of 22 Giant Mountain's splash dams built mainly in the second half of the 16th century were traced. Half of them were accurately located, the rest of the splash dams were located with an accuracy of watercourses. In the thesis there are 6 diverse localities described in detail, selected from the accurately located splash dams e.g. on the base of degree of the splash dam's preservation or degree of the anthropogenic influence on the watercourse. Key words: log driving, splash dam, Giant Mountains, history, current state
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Impact of small water reservoirs on the occurrence of extreme runoff episodes in the upper Otava River basin
Šmrhová, Zuzana ; Kocum, Jan (advisor) ; Jeníček, Michal (referee)
The main objective of this thesis is to prove the influence of small water reservoirs on the extreme runoff situations in a watershed of upper Otava River. The system of small water reservoirs represents an effective part of flood protection, which can be realized without greater changes of landscape. The research part of this thesis includes a summary of knowledge about rainfall-runoff process, small water reservoirs and hydrological modeling. The work is applied to model watershed of Roklanský creek, which is situated in a central part of Šumava Mountains. There are a few rain gauges and laser sensors situated in this watershed, whose are needed for the modeling process. The thesis contains a selection of appropriate data and methods for a creation of digital model of terrain. This digital model of terrain is used for creation of most of the parameters, whose are used for modeling of rainfall- runoff process. This modeling is done in hydrological modeling program HEC - HMS (Hydrologic Engineering Center - Hydrologic Modeling System). HEC - HMS is one of the most used simulation programs. The main part of the thesis is a simulation of rainfall-runoff process, applied to two real rainfall-runoff episodes. Next important part of the thesis is a comparison of this simulation with and without...
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Revitalization study for small water reservoir
POSLUŠNÝ, Marek
This Diploma Thesis deals with small water reservoirs as significant landscape elements, that have the essential influence on preservation or increase of generic diversity of the whole territory. In a specific example of the proposal of restoration of a small water reservoirs the pond Panský in the cadastral area of Lhota by Kamenice nad Lipou is presented the suitable way of approach to original, natural functions of this minor dam considering the interest of the owner, who uses the pond for semiintense fish farming.
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Assessment of the condition of small water reservoirs in terms of landscape functions.
RUČ, Karel
This thesis is focused on evaluation of landscape functions of small water reservoirs. The aim is to analyze their basic parameters. For this purpose a realized project of the whole range of water reservoirs with special focus on revitalization was chosen. The source materials and the field research contributed to the final evaluation of the analysis of the water reservoirs condition before and after their completion. The basic data and revitalizing arrangements were identified according to the chosen indicators and criteria. Prevailing functions of the water reservoirs are derived from these indicators and criteria.
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