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Stabilization of bank of river
Odehnalová, Zuzana ; Ing.Pavla Pilařová (referee) ; Šlezingr, Miloslav (advisor)
The aim of this work is to design stabilizing the banks of the watercourse Svratka in the cadastral Tišnov. The chosen site was divided into ten sections. Each segment was classified in terms of the status of riparian vegetation. Stabilizing elements are designed in three sections chosen location, where banks are most stressed. In other parts do not necessarily represent a significant stabilization measures. The result is a proposal biotechnical stabilization, completed the design of riparian vegetation.
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Stabilization of the flooded sand pit near Hulín
Tomšej, Lukáš ; Svoboda, Ondřej (referee) ; Šlezingr, Miloslav (advisor)
The diploma thesis assesses the current state of the Hulín gravel and sand plant and pays attention to abrasions of severely damaged banks of the reservoir. With the help of the design of a suitable biotechnical stabilization, the receding of the shoreline in the section of interest will be prevented. The basis for the processing of appropriate bank stabilization proposals is the results achieved using a method of determining shore retreat. The individual developed variants of the bank remediation solution emphasize the use of vegetation support, especially suitable bank stands to ensure the stability of the banks and protection against abrasion.
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Habitat selection by dragonflies - effect of littoral and riparian vegetation
Bonková, Anita ; Černý, Martin (advisor) ; Waldhauser, Martin (referee)
Dragonflies form one of the important pillars of most aquatic ecosystems and play an important role in maintaining their balance. The main goal of this bachelor's thesis is to summarize current knowledge about the habitat preferences of members of the order Odonata, with a focus on the effect of littoral and riparian vegetation, which are critical components of aquatic biotopes and significantly influence the distribution, abundance and reproductive success of dragonflies. In my work, I focus on all developmental stages, from larvae to adults. These findings are important for the maintenance and revitalization of freshwater ecosystems, in which it is necessary to pay attention to the composition of littoral and riparian vegetation to support the diverse needs of this unique insect order. Key words: habitat preference, dragonflies, Odonata, riparian vegetation, littoral vegetation
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Zpracování návrhu revitalizační studie pro malý vodní tok
ZÁBRANSKÁ, Dora
This diploma thesis is focused on stream restoration. In the literature review is described why the need of this discipline arose, its evolution, objectives and effects. Then particular measures within restoration are characterized, also documents needed for the restoration project and possible sources of funding are described. The practical part of this thesis deals with the restoration design of a small watercourse - Měkynecký stream. First, information about the watershed of this stream are compiled. Local hydrological, climate, pedological, geological and geomorphological conditions are analyzed, as well as land use and the system of ecological stability. The soil erosion risk and the riparian vegetation are also assessed. Next, the watercourse is divided into homogeneous parts, which are described in detail. Then comes the design part of the thesis, which contains the restoration design itself. It includes the design of a new stream bed route and its cross sections, also the design of new pools and the riparian vegetation. A solution to the high rate of soil erosion is also comprised.
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Distribution of invasive neophytes in the riparian vegetation of the Berounka river
Randová, Nela ; Matějček, Tomáš (advisor) ; Romportl, Dušan (referee)
The river banks are very often colonized by invasive alien plants. The aim of this paper was to monitor the presence of invasive neophytes in riparian vegetation of the Berounka river and to compare the results with those of Boháčková (2007) from the year 2006. The research was completed during August in the year 2015. In every segment of the riparian vegetation were observed the presence and approximate population of seventeen invasive neophytes. In the riparian vegetation of the Berounka river were observed thirteen invasive neophytes on the whole. Impatiens glandulifera occured in the largest number of the segments, very closely followed by Robinia pseudacacia. Reynoutria sp. represented the largest population of individuals in the entire study area. The results of the comparison showed that the invasive neophytes are spreading to new locations but their population is not getting bigger. Key words: invasive neophytes, riparian vegetation, stream, changes in vegetation, monitoring of vegetation
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Stabilization of the flooded sand pit near Hulín
Tomšej, Lukáš ; Svoboda, Ondřej (referee) ; Šlezingr, Miloslav (advisor)
The diploma thesis assesses the current state of the Hulín gravel and sand plant and pays attention to abrasions of severely damaged banks of the reservoir. With the help of the design of a suitable biotechnical stabilization, the receding of the shoreline in the section of interest will be prevented. The basis for the processing of appropriate bank stabilization proposals is the results achieved using a method of determining shore retreat. The individual developed variants of the bank remediation solution emphasize the use of vegetation support, especially suitable bank stands to ensure the stability of the banks and protection against abrasion.
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The spread of invasive neophytes in the riparian vegetation of the Kamenice river
Holzknechtová, Nikola ; Matějček, Tomáš (advisor) ; Bartoš, Jan (referee)
Watercourses and especially their riparian vegetation are habitats that are very sensitive to spreading of invasive plant species. Rivers create natural migration routes (corridors) and help propagules to spread quickly and easily. The theoretical part of this thesis is focused on plant invasions and covers also the most recent knowledge in the field of invasion ecology. In the practical part of this thesis the spread of invasive neophytes in the riparian vegetation of the Kamenice river in Northern Bohemia is described. The plant species were examined during the field survey along the entire stream of the Kamenice river. In total, common occurence of 7 invasive taxa were recorded, namely Impatiens parviflora, I. glandulifera, Reynoutria japonica, R. sachalinensis, R. bohemica, Solidago gigantea and S. canadensis. The distribution of observed taxa along the stream as well as on the banks was relatively uneven.
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The spread of invasive neophytes in the riparian vegetation of the Úpa River
Tomeš, Miroslav ; Matějček, Tomáš (advisor) ; Flašarová, Kristýna (referee)
The presented bachelor thesis deals with the distribution of invasive neophytes in the riparian vegetation of the East Bohemian river Úpa and compares the findings with other streams. In the practical part, in the summer of 2020, the occurrence and abundance of 17 selected taxa of invasive neophytes in segments with a length of 500 m are monitored, for statistical evaluation merged into sections 2-3.5 km long. In almost 60 km of vegetation (in the sum of both banks) there are 7 taxa of invasive neophytes with different degrees of representation. Unequivocally dominant is in terms of the absolute number and share of occupied segments the taxon Impatiens parviflora occurring in almost the entire mapped area. Reynoutria sp., I. glandulifera and Solidago sp., which are concentrated in certain localities, can also be mentioned as numerous taxa. All segments are invaded. A more significant invasion process is taking place on the right bank of the river. In the Czech context, Úpa is one of the more invasively loaded streams. Keywords: invasive neophyte, riparian vegetation, the Úpa River, stream, monitoring of vegetation
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Changes in the distribution of invasive neophytes in the riparan vegetation of the Berounka river
Randová, Nela ; Matějček, Tomáš (advisor) ; Lipský, Zdeněk (referee)
Riparian vegetation along the water courses is one of the places that are highly vulnerable to the spread of invasive alien plants. Water corridors allow their easy and rapid spread to new area. The diploma thesis occupies with changes in the distribution of the invasive neophytes in the riparian vegetation of the Berounka river during the years 2015-2018. The objective of this study was to find out how changes in the course of each year will be reflected and whether a certain trend of population development can be traced. In connection with this, the thesis occupies with the possible influence of extremely dry years 2015 and 2018 on the occurrence of invasive neophytes. Field research took place on the banks of the Berounka river from the village of Čilá near Skryje to the confluence of the Berounka and Vltava river in Prague-Lahovice during the summer months in 2015, 2016, 2017 and 2018. The riparian vegetation was divided into 500 ± 150 m long segments. There were 90 segments where the occurrence and abundance of 17 invasive neophytes were mapped. In total, occurrence of 14 taxons was registered. The most frequent taxons were Robinia pseudacacia, Impatiens glandulifera and Solidago sp. in the Berounka riverbank vegetation. The highest number of specimen was recorded for invasive neophyte...
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The spread of invasive neophytes in the riparian vegetation of the Lužnice River
Eliášová, Kateřina ; Matějček, Tomáš (advisor) ; Hrdina, Aleš (referee)
This thesis studies the spread of invasive neophytes along the South Bohemian Lužnice River. The literature search deals with plant invasions, floodplains and the area of interest. The riparian vegetation along the Lužnice River was mapped with emphasis on 17 taxons of invasive neophytes. The mapping was realized in four sections that were 3-5 km long. The results are compared with the state ascertained by monitoring in the same location in 2008. The results indicate a general increase of invasions and an intensive spread of Impatiens parviflora since the previous mapping. Generally widespread invasive taxa in the studied area are Impatiens parviflora and Impatiens glandulifera of the herbaceous plants. The occurence of Robinia pseudacacia of the woody plants is also common. Other observed taxa occur only locally or in smaller amounts. Keywords: IAS, riparian vegetation, plant invasion, vegetation mapping, watercourse, vegetation change
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