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Hydraulic assessment of a stream revitalization effect on a floodplain retention capacity
Berka, Ondřej ; Havlíček, Tomáš (referee) ; Dráb, Aleš (advisor)
Diploma thesis “Hydraulic Assessment of a Stream Revitalization Effect on a Floodplain Retention Capacity“ assess availability of revitalized stream and its floodplain to transform floods and compare determined values with transformed floods from model of technically modified stream, both by using coupling 1D/2D BASEMENT computational model. In the first part is overall introduction to research issue. In the second part the territory of interest is described and the hypothesis are set. In the third part are described input data, used tools, computational model, its making and computational versions. In the fourth part the hypothesis are evaluated. It was determined, that for in this thesis used terrain and hydrographs are floods smaller than Q20 transformed much more by revitalized stream and that technically modified stream can speed up the flood, floods Q50 and Q100 are more transformed by technically modified stream. For generalization of the results would be appropriate to make research on bigger ammount of case studies based on combination of 1D/2D and rainfall-runoff model.
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Effects of restoration and renaturation measures applied on watercourses
Brychtová, Anna ; Matoušková, Milada (advisor) ; Králová, Magdalena (referee)
This work focuses on the effects of restoration on watercourses, in particular on a planned restoration of Klíšský brook in Ohře basin and a finished restoration of Rokytka in Běchovice. The main goal is to use the methods HEM and MoRPh for evaluation of hydromorphology in both areas. In case of Klíšský brook, HEM is used to estimate ïts future condition after restoration. Another goal is to assess and propose a vegetation structure for the of Klíšský brook restoration, then to describe it on Rokytka. Research on the topic of river restoration, their goals and effects is included, as is an introduction to in the Czech Republic less known method MoRPh. The results of hydromorphological and vegetation structure assessment are introduced. Both utilised methods show adverse hydromorphological conditions on Klišský brook in comparison to Rokytka. Vegetation also shows higher diversity around and in Rokytka's channel. This work is a base for further monitoring of hydromorphology and vegetation evolution in both areas. The results from Klíšský brook were also used in its restoration proposal. Key words: river restoration, renaturation, hydromorphology, channel, riparian belt, flood plain, riparian vegetation
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Analýza střetů využívání údolní nivy malých vodních toků v urbánním prostředí
SCHWARZOVÁ, Šárka
This bachelor thesis sums up an overview of the current findings regarding floodplains and their usage. The pilot study focuses on the delimitation of floodplains of the right tributaries of the Vltava river on the territory of České Budějovice, alongside with the monitoring of the hydromorfological indicators of ecological guality of the Vrátecký stream. The thesis gives a description of the encounters between the functions and the current state of the floodplains' utilization. The thesis also contains a project proposal for terrain monitoring of the remaining tributaries of the Vltava river - the Dobrovodský stream, the Rudolfovský stream and the Hodějovický stream.
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Assessment of physical habitat quality as a basis for restoration of the Klíšský Brook
Vrška, Jaroslav ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
This bachelor thesis is focused on the issue of evaluating changes in physical habitat and possible revitalization of Klíšský stream. The bachelor's thesis uses the method of hydroecological monitoring HEM (Langhammer 2014), according to which the evaluation and presentation of the results of field research was performed. The research part of the thesis briefly summarizes the current knowledge in the field of hydromorphology. Furthermore, the research part focuses on current knowledge dealing with the evaluation of the effects of revitalization measures. The current state of the Klíšský brook is described and on the basis of the obtained data, data are collected as a basis for a possible revitalization study of selected sections of the stream. The negative anthropogenic influences acting on the given locality are also summarized. The performed hydromorphological survey and further analyzes are the basis material for further preparation of individual complex revitalization measures. Keywords: hydromorphology, fluvial-morphological characteristics, channel route, riparian belt, flood plain, restoration, restoration efect
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Assessment of physical habitat quality as a basis for restoration of the Klíšský Brook
Vrška, Jaroslav ; Matoušková, Milada (advisor) ; Kliment, Zdeněk (referee)
This bachelor thesis is focused on the issue of evaluating changes in physical habitat and possible revitalization of Klíšský stream. The bachelor's thesis uses the method of hydroecological monitoring HEM (Langhammer 2014), according to which the evaluation and presentation of the results of field research was performed. The research part of the thesis briefly summarizes the current knowledge in the field of hydromorphology. Furthermore, the research part focuses on current knowledge dealing with the evaluation of the effects of revitalization measures. The current state of the Klíšský brook is described and on the basis of the obtained data, data are collected as a basis for a possible revitalization study of selected sections of the stream. The negative anthropogenic influences acting on the given locality are also summarized. The performed hydromorphological survey and further analyzes are the basis material for further preparation of individual complex revitalization measures. Keywords: hydromorphology, fluvial-morphological characteristics, channel route, riparian belt, flood plain, restoration, restoration efect
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Impact of stream and floodplain modification on th eflood effects on the example of Stropnice basin
Douděrová, Šárka ; Langhammer, Jakub (advisor) ; Matoušková, Milada (referee)
This thesis deals with the evaluation impact of the modifications of floodplain and river network to the course and consequences of floods on the example of Stropnice river, located in South Bohemia. The thesis evaluate causes, course and effects of the floods, that took place in the basin with special focus to the recent floods. The basin was hit by extreme flood in 2002, while in 2005, 2006, 2009 other floods with different origin and magnitude took place in the basin. The assessment was based on field survey, and application of GIS analysis of results for identification of critical stream segments, which may influence the course of flood events. To get information about river network modification the HEMF field survey methodology was used. The following rivers were mapped: Stropnice river, Svinenský, Klenský and Žárský brook. The critical stream segments are spread in the whole Stropnice basin. It can be concluded that the anthropogenic effects are apparent in the whole basin including its headwater part in mountains. In several critical stream segments there were proposed measures aimed to reduce the consequences of potential flood events.
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A practical example of awards water treatment water flow on forest land as opposed to possible damage to property resulting from floods
Bureš, Petr
Object and purpose of the published post titled "A practical example of awards water treatment water flow on forest land as opposed to possible damage to property resulting from floods," is to design and appreciation of nature nearby flood protection measures the water flow in extraregion community with subsequent comparison to figures of the investment costs of building potential damage to real property which resulted from the flood flow (flood wave) in the urban community. The article discusses the possibility of using extraregion, forest land in the valley cheese to increase the retention capacity of the landscape, water features enhance the forest, increasing supplies of underground water and its relevance for forest ecosystems, and consequently contribute to the strengthening of flood protection active urban communities located in the catchment area pet stream. Active approach in solving the problems published in the watershed can lead to significant reduction or minimized damage to real property during flood flows in the municipalities.
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Hydraulic assessment of a stream revitalization effect on a floodplain retention capacity
Berka, Ondřej ; Havlíček, Tomáš (referee) ; Dráb, Aleš (advisor)
Diploma thesis “Hydraulic Assessment of a Stream Revitalization Effect on a Floodplain Retention Capacity“ assess availability of revitalized stream and its floodplain to transform floods and compare determined values with transformed floods from model of technically modified stream, both by using coupling 1D/2D BASEMENT computational model. In the first part is overall introduction to research issue. In the second part the territory of interest is described and the hypothesis are set. In the third part are described input data, used tools, computational model, its making and computational versions. In the fourth part the hypothesis are evaluated. It was determined, that for in this thesis used terrain and hydrographs are floods smaller than Q20 transformed much more by revitalized stream and that technically modified stream can speed up the flood, floods Q50 and Q100 are more transformed by technically modified stream. For generalization of the results would be appropriate to make research on bigger ammount of case studies based on combination of 1D/2D and rainfall-runoff model.
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Zpracování části koncepce uspořádání krajiny na Opavsku
Vrublová, Kateřina
This thesis is focused on the demarcation of significant landscape element "alluvial plain" in the process of making new a part of landuse layout conception for the broadened area of municipality of the town Opava. The thesis lays out the basis problematic of alluvial plain demarcation and its definition in law and other sources. It also mentions the position of landuse layout conception in spatial planning. Preceding methodologies for demarcation of alluvial plain are also mentioned as well as for the landuse layout conception and in the chapter Discussion these methodologies are compared. According to the chosen working methodology, areas with high probability of alluvial plain occurrence were singled out in the first basic area study and then these areas were localized and specified during the field survey. Results with comments as well as the final outcome of the project are part of the thesis as well. Nature and hydrological conditions in the area together with cultural and historical characteristics are also mentioned to anchor the phenomenon of alluvial plain in the region of Opava.
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