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Thermal and moisture regime of patterned ground in the High Tatras
Pechačová, Blanka ; Křížek, Marek (advisor) ; Engel, Zbyněk (referee)
6 ABSTRACT Thermal and moisture regime of patterned ground is closely associated with the presence of the regelation phenomenon. Generally, the regelation includes all processes leading to the water freeze-thaw alternations in soil or bedrock. As a result of cyclic freezing and thawing of soil water under specific conditions, processes, such a moisture migration, ice segregation or frost heaving, operate. Termal and moisture regime is the main factor of these processes and consequentely, of the patterned ground formation. The submited diploma thesis is concerned with thermal and moisture regime of patterned ground in the High Tatras. The main aims of the thesis was to characterize thermal and moisture regime of patterned ground, to evaluate and confront the patterned ground regelation activity depending on the diverse soil depths and different types of the patterned ground and to evaluate the soil temperature relationship to the air temperatures, soil moisture content and the water level regime of the nearest lakes. The partial purpose of the thesis was to assess the applicability of different methods of the regelation cycle determination based on the soil temperature measurements. During the study period 2007 - 2012 the regelation activity of sorted paterned ground (Hincove oká, Lúčne sedlo and Skalnaté...
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The status and content equipment of physical geography in contemporary Czech geography textbooks for elementary schools and lower grammar schools
Šťovíčková, Irena ; Křížek, Marek (advisor) ; Hanus, Martin (referee)
This thesis evaluates the condition and status of physical geography in terms of quantity and quality of content, graphics and didactic in contemporary Czech textbooks for primary schools and lower grammar schools. To address the topic, specific textbook categories were selected and evaluated. We examined the scope and extent of sub-disciplines of physical geography, the number of didactic exercises, curricular links and theme context, graphic attachments and the accuracy of the content and terminology in the particular categories. Based on the evaluated data, it is possible to assess the rank of the examined textbooks in terms of the selected categories. The data was processed according the selected criteria and simple descriptive statistics. In terms of educational facilities have been positively evaluated by textbook publishers Fraus (Red, J. et al., 2007, 2009 ), while in terms of concepts that were textbook publishers Prodos (Voženílek V., Demek J. 2007, 2013) . The results of this thesis allow assessing the textbooks from different perspectives. The solution, presented in this thesis, will provide teachers with an overview of standing of different categories in given textbook. This could help the teachers to decide, which textbook fits the particular concept of their classes and teaching. Key...
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Regelation of patterned ground in the High Tatras.
Pechačová, Blanka ; Křížek, Marek (advisor) ; Voják, Karel (referee)
Regelation (freeze-thaw cycles) is the collective term used for a process of alternate freezing and thawing of water and solutions into the soil or bedrock. The series of geomorphological and pedological processes such as migration of soil water, formation of segregated ice or frost heaving, is connected with regelation. Condition of freezing-thawing process is a phase transition of water that leads to an important phenomenon - a release or consumption of latent heat. This phenomenon can be observed from the data obtained by measuring the temperature in the soil profile. In the present bachelor thesis, here are investigated sites of sorted patterned ground (Hincovo pleso, Lučné sedlo) and earth hummocks (Kopské sedlo) in the High Tatras for the purposes of the study regelation process. In addition to detailed description of the physical-geomorphological processes associated with phase changes of water in patterned groud, the main aim of the thesis is to set regelation cycles and their characteristics using different methods for determination of regelation on the basis of temperature measurements in patterned groug of the foregoing locations. The results indicate differences in regelation in the individual shapes within the locations, among the sites, but also between different types of patterned groud -...
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Morphology of valley networks
Kusák, Michal ; Křížek, Marek (advisor) ; Hartvich, Filip (referee)
This bachelor thesis is engaged in the juxtaposition and different methods account of valley networks. Thanks to the background research of the late published literature, there are known a lot of types of valley network, which result in various types of relief and the criteria by which can the different types of valley networks be identified and distinguished from other types of valley networks. Methods of characterizing the valley networks are used to describe the valley of the same type of networks in different areas, respectively allow their comparison. In the interested area of CHKO Kokořínsko, there were studied the valley network order, the type of the valley network, the bifurcation ratio, connected of valley network, the fractal dimension, the valley network homogenity and the allometry of the valley of some parts. Valley networks in the studied areas of Pšovka and Liběchovka were identified as trellis and valley network of studied area of Vlhošt was described as a radial type of valley network with elements of annular valley network.
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Microforms of sandstone relief and their using in relative dating
Krbcová, Klára ; Křížek, Marek (advisor) ; Engel, Zbyněk (referee)
Microforms and mesoforms play the main role in the sandstone relief. Their origin is conditioned by some processes, the main are weathering and erosion. Based on the background research, the deffinition, classification, diagenesis and occurrence of sandstones was described. The second part of the bachelor thesis is focused on the mechanism of weathering and erosion. The microforms and mesoforms of the sandstone relief were divided into groups according to the guiding process of their origin. The description of the sandstone forms, the way of their origin, the stage of development and their extension were described. In the practical part of the bachelor thesis, the microforms in the gorge Apatyka in CHKO Kokořínsko were analyzed. The practical part was focused expecially on honeycombs, because their extension in the gorge is huge and they enable the complex analyse of their location in the gorge and in the rock outcrops. Using suitable methods it was found, that the honeycombs are located primarily in the eastern quadrant, their coverage decrease with the decreasing height of the rock outcrops and their presence in the lowest and the highest parts of the rock walls is limited. The second part of the fieldwork was focused on the relative dating of the parts of the gorge with honeycombs. The odlest part of the...
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Morfological displays of valley's evolution in Králický Sněžník Mountains
Košíková, Karin ; Křížek, Marek (advisor) ; Štěpančíková, Petra (referee)
Valley as an area where records of former activity in upper and lower partsof the region have been deposited, is a valuable source of information suitable for research from which the evolution of the area and the surroundings can be understood. The core of the tesis were the measurments of longitudinal and cross profiles in the field focusing on recording the protrusions. Longitudinal profiles were displayed in the form of a normative graph and based on the characteristics of shape were, using the cluster analysis, dividend into four main classes. With regards to the classification into classes, the distribution of levels in longitudinal and cross profiles has been studied, in connection with tectonics condition of the area. To better understand the development of the Králický Sněžník Mountain, planation surfaces have been defined in altitudes 925-955, 980-995, 1070-1120 and 1210-1325 m.a.s.l.. All the findings have led to better understanding the relationship among levels in longitudinal and cross profiles, planation surfaces and the litological and tectonical conditions in area of interest. The places where the fault had not been expected were further studied and the presence and mutual relation of relief elements indicate the fault might run there. Keywords: valley, longitudinal profile, cross...
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Exoscopy of sediments of glacigenous accumulation landforms
Křížová, Lenka ; Křížek, Marek (advisor) ; Lisá, Lenka (referee)
This thesis looks at the comparison between grain micromorphology of moraines, debris flows and similar accumulations. Moraine samples were taken in the Černé jezero Lake area, Bohemian Forest, in the Velická dolina Valley, High Tatras, and in the Labský důl Valley, Krkonoše Mts. Samples of debris flows and unverified accumulations were taken in the Důl Bílého Labe Valley, Krkonoše Mts., and further samples of accumulations were obtained from the valley of Prudký potok Stream, Králický Sněžník Mts., the valley of Vražedný potok Stream and Velká Kotlina, Hrubý Jeseník Mts. Sediments were examined under electron microscope and their morphological characteristics and influence of the environment were identified and described. Calculated exoscopic moraine standard was used for comparison of examined forms of relief using distance coefficients, statistical analysis were carried out which identified diagnostic characters for distinguishing moraines and debris flows. There was also calculated exoscopic standard for different types of moraines (frontal, lateral, basal). This research highlighted the differences between moraines and debris flows, and between different types of moraines. The study also proved that typical glacial microtextures, that are generally accepted, occur at similar levels on grains...
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