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Landslides, Scree and the Other Unusual Terrain Features in Topographic Databases and Digital Cartography
Šákrová, Michaela ; Lysák, Jakub (advisor) ; Kubín, Tomáš (referee)
Landslides, scree and other specific terrain objects in topographical databases and digital cartography Abstract Topographic maps capture detailed information about terrain. In traditional analogous way of creating these maps, understandable and illustrating cartographic symbology was used. However, certain spheres of symbology were modified with transition to digital topographic databases and digital cartography. Now they carry less information and are less illustrative. Main cause of this inaccuracy is imperfection of the cartographic software, which is unable to create appropriate symbology. This diploma thesis tries to solve aforesaid problem for some specific terrain objects as scree and landslides. These shapes are distinctive geomorphologic phenomenon in terrain, but they are often neglected as their occurrence in our territory is infrequent. Key words: topographic maps, digital cartography, scree, landslide, specific terrain object
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Changes in the fluvial valley network at NW Šumava foothills
Hošek, Roman ; Hartvich, Filip (advisor) ; Borská, Jana (referee)
This bachelor thesis is focused on the processes causing the changes of the river network. Among the most important processes are tectonics, landslides, headward and lateral erosion, anthropogenic activities, lithology of a stream bed, changes of the erosion base and climate, as a factor influencing the morphology of valleys. The information from the literature search is applied on finding potential valley network changes localities based on indicators of changes of the river network, which were analysed in the GIS environment. Each potential locality was chosen for a presence of an indicator, which may signify changes of the river network: sudden direction changes of a stream, wind gap, streams which flow through topographic barrier, captured stream. The main criterion for finding potential localities was elevation above the valley-floor interpolated surface, where low values indicate low water divide between valleys. These selected localities were compared with the position of the anomalies on the longitudinal profiles of the rivers. The longitudinal profiles with sudden changes of inclination (knickpoint) indicate possible changes of the river network. Key words: changes of the river network, headward erosion, lateral erosion, river piracy, landslides, tectonics, anthropogenic activities, Šumava...
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Slope movements in Semily region
Kujan, Ondřej ; Novotný, Jan (advisor) ; Kudrna, Zdeněk (referee)
In this thesis author deals with slope movements affecting the area around the river Jizera near the town Semily in Liberecký region. The aim of the work is to gather available resources and evaluate the results of research carried out so far in this area. Author also tries to point out the threat of some partially built-up slopes. They could be activated in the future for example by influence of increased precipitation or imprudent human activity.
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Comprehensive search of problem of forest management in the areas affected by landslides and rock falling
Bajer, B. ; Buček, A. ; Divíšek, Jan ; Friedl, M. ; Halas, Petr ; Kirchner, Karel ; Kuda, František ; Lacina, Jan ; Roštínský, Pavel ; Simon, J. ; Vavříček, D.
The present report represents the 1st outcome of research project “The optimization of forest management strategies on slopes endangered by landslides and rock falling – a methodology for forest-planting practices”. Submitted report is search of published and unpublished data relating to geomorphological, geological and landscape aspects of origin as well as distribution of the landslides and rock falling to the forest management.
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Engineering geological survey evaluation of area affected by lanslides in Budkovice
Prechtlová, Kateřina ; Paseka, Antonín (referee) ; Erbenová, Alexandra (advisor)
This Thesis deals with evaluation of engineer-geological survey of area affected by landslides near Budkovice. The area of interest is situated in the south part of Boskovická brázda on the left bank of the river Rokytná. The Thesis first outlines the problems of slope movements in general: why it’s appropriate to study them, what factors play role in their creation, what areas are prone to their creation, how to proceed with engineer-geological survey and how the slope stability is solved. Next itfocuses on the above mentioned landslide in village Budkovice. Geology and hydrogeology of the area of interest were studied. Carried out survey works were summarized. I became familiar with their results and outputs.Friction angle of the residual strength on the slip plane was calculated using Pettersson’s method, it’s value was 11,27°. Simple geological cuts though the slope area and calculation cut were made. Groundwater level was measured on the preserved drill holes and it was compared with former values.
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Rate of accumulation of carbon into soil after disturbance
HELLEROVÁ, Šárka
I wrote this thesis with intention to use its obtained data in order to ask for a grant application. The main goal of this thesis is to quantify the amount of carbon in soil in different stages of soil development with accent on forests ecosystem. My thesis promotes the idea of better accumulation of carbon in early stages of soils development
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