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Land Use changes under the influence of the process of societal integration
Mareš, Petr ; Bičík, Ivan (advisor) ; Kolejka, Jaromír (referee) ; Lipský, Zdeněk (referee)
Mgr. Petr Mareš Land Use Changes Under the Influence of the Process of Societal Integration ABSTRACT The PhD. thesis discusses impacts of a long term process of socio-economic integration on the changing Land Use structure in the Czech Republic and Slovenia and puts forward a hypothesis that "together with the integration of socio-economic relations into hierarchically higher structures, sub-areas tend to be more specialized within every such structure". For the Czech Republic, the main data source used was the LUCC Czechia Database comprising information on 7 Land Use categories in 8 903 CTUs (Comparable Territorial Units, derived from cadastres) in four time horizons 1845-1948-1990-2000 (at the national level) and detailed analyses of maps of four selected CTUs in 1845-2005 (at the local level). For Slovenia we tested our hypothesis using the trial version of the LUCC Slovenia database where data for four Land Use categories had been completed for 2 403 CTUs in 1825-1900- 1961-2002. In order to understand the specialization processes the following indicators were used: the coefficient of variation; the frequency of CTUs in classes of percentage share of selected land use categories and the development of selected different land use categories in diverse areas at the national level (database); then the map...
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Landscape typology of the Czech republic
Romportl, Dušan ; Lipský, Zdeněk (advisor) ; Kolejka, Jaromír (referee) ; Hrnčiarová, Tatiana (referee)
29 number of framework was set expertly. The next step affected by author of classification is the choice of training objects. For each of the classes 5 objects were considered that cover the range of variability of natural conditions. However, their selection was also a affected by author's choice. Verification and comparison of the results of object-oriented analysis with traditional methods of pixel-based classification showed differences in the of classification methods. In the case of object- oriented analysis spectral information are evaluated for the whole object. The highly heterogeneous objects such information may be averaged out and the object is thus classified as atypical representative of a certain class. Pixel classification methods, however, assess the quality of each pixel of the raster, so that any heterogeneous objects are divided into several classes. Using the results of the supervised classification the accuracy of object-oriented classification has been confirmed, considering a few exceptions. 4.1 THEORETICAL ISSUES Serious question of developing comprehensive landscape typology is the purpose and reason for such action. Pedroli et al. (2006) points to a general demand for accurate, highly detailed and high quality representative spatial information on the status and development of...
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Regional and flash flood as a limiting factor for development
Kolejka, Jaromír ; Krejčí, Tomáš ; Rapant, P. ; Inspektor, T.
Locating and developing factors are generally well known, studied and taken into account in the accepting of the solution. In contrast, the limiting factors of development usually stands in the background. Current data sources, knowledge and modelling technologies allow greatly anticipate the extent of the flood situation. Evaluation of the risk of regional or flash floods is not discouraging information for investors, but rather to guide their activities to a safe area. Knowledge of risk locations in the Czech Republic in terms of these types of floods also help for the safety of visitors and the local population. Appropriately incorporated findings into the development plans of all dimensions support the initiatives of local and external investors. The paper illustrates the unconventional use of public available geodata in the form of an offer vital information into regional development plans.
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The geographical drought – a different view of the issue and its application in practice
Kolejka, Jaromír ; Batelková, Kateřina ; Ruda, A.
Czech Republic, the land locked Central-European country faces the risk of drought in the last two decades. This problem is being studied by number of academic and applied institutes. We have focused on the so called geographical drought caused by an integral impact of representative factors of all natural landscape components and human land utilizing. Using GIS technology, we have carried out an exemplar research ignited by the hot wave and the precipitation deficit in the 2013 summer. Using detail natural component maps and land use data at the resolution 1:50 000, five territorial classes of drought risk were distinguished. Some of the most endangered areas cover large territory in the most fertile agricultural land in Southern Moravia. The artificial irrigation has to be planned and constructed on large plots primarirly to prevent harvest loses after hot wave has started.
Fulltext: content.csg -  PDF
Plný tet: UGN_0472644 - PDF
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The GIS support to measures on the ground in case of leakage of liquid pollutant on the road
Kolejka, Jaromír ; Rapant, P. ; Zapletalová, Jana
Accidents on roads associated with the leakage of hazardous substances are one of the major challenges encountered by disaster management. Because of the impossibility of predicting the place and time of the event, then it is necessary in the event of such an accident to proceed in quick succession of steps. They are designed primarily to protect human life and health, and then to minimize to property and environment damage. The paper describes the response to this event using GIS tools and generally available geodata. The simulated accident on the D1 highway near Ostrava is applied as a demonstration example.
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The possibilities of flash floods prediction
Rapant, P. ; Kolejka, Jaromír ; Inspektor, T. ; Batelková, Kateřina ; Zapletalová, Jana ; Kirchner, Karel
Flash floods are very important natural phenomenon today, which is devoted considerable attention in the general public, the media, the public administration system in the professional community The main characteristic of flash floods from the perspective of crisis management is the short time between the cause (torrential precipitation) and the result (flooding of the territory and the emergence of major damages or even loss of life). Right the shortness of time implies that to save lives it is necessary to obtain a warning of impending danger in the shortest possible time after the cause. To do this, a new methodology that enables to identify streams, which may be the subject of intense water runoff and thus manifestations of flash floods was created (Rapant, et al., 2015).
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Geoinformatic support of an efficient scenary for an operative solution of a toxic road accident
Kolejka, Jaromír
Accidents on the road with the release of toxic substances are characterized with a relative unpredictability as with regard to time and place of occurrence. For the operational phase of the problem, the geoinformation support can lies firstly in the early provision of information about the event´s environment, and the availability of assess for the intervention unit, and possibly sufficient minimum amount of time for the primary analysis of the "pollutant-environment" interaction within the meaning of estimating the further development of the event and the selection aof an appropriate place for response. The demonstrated example of distribution of geoinformation support to individual steps is one of possible GIS applications of GIS and spatial data in the procedure of a road toxic accident management.
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Typology of Post-Industrial Landscape in Usti Region
Kolejka, Jaromír ; Klimánek, M.
The location, mapping and typology of post-industrial landscapes (PIL) are the most common requirements of planners and decision makers on all levels of administration or resolution. Data on industrial heritage was applied for the identification and typology of the post-industrial landscapes on the regional level on the example of the Usti Region in the North of the Czech Republic. This Region was presumably the most industrialized territory in the country and was significantly changed after the structural changes in regional economy. The industrial heritage is represented by objects and traces in any landscape left by the industry in the previous period which is not serving the present industrial activities. Accessible data sources on man-made land, land use, brownfields, undermined sites, contaminated sites, industrial architectural heritage, etc. were applied to identify and classify the post-industrial landscape (PIL) in the study region using GIS technology.
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