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Virtual Interactive Walk through Scenery
Halas, Petr ; Dvořák, Radim (referee) ; Stružka, Jaroslav (advisor)
This bachelor's thesis describes the issues of modelling a scenery in OpenGL. It contains theoretical principle of 3D displaying with OpenGL functions and description of some of the technologies made for realistic objects and efects modelling. These technologies are demonstrated on an application modelling an interactive walk through scenery, which is eventually tested with questionnaires, filled by a group of volunteers.
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Landscape photography in the research of landscape change
Skokanová, H. ; Halas, Petr ; Koutecký, T. ; Kallabová, Eva ; Havlíček, M. ; Slach, T.
The paper presents partial results of “entering” landscape photography, which can be considered as a complementary method for the research of landscape changes. Unlike the usual assessment of landscape changes using cartographic and other archival sources, old landscape photographs can contribute to the deeper knowledge of the local specifics of the examined places or supplement the conventional procedures. Thanks to the ongoing project, supported by the Technology Agency of the Czech Republic (TL02000222), we documented changes in photographic shots of various landscapes in the 20th century. We also added information about environment, vegetation, and geography and photo documentation of the details of the researched shot. This creates a comprehensive output for each old landscape photograph. Such processed photographs have been presented at exhibitions in museums and galleries. Furthermore, they will be available to municipalities and public at a web page created as a tool to support public recreation. Here we present some examples from the Bohemian-Moravian Highlands. They show four types of landscape changes: 1) afforestation and overgrowth bywoody vegetation, 2) changes in the agricultural landscape, 3) loss of the grazing landscape, and 4) changes related to watercourses.\n
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Resuscitation of landscape painting by research of landscape changes
Havlíček, M. ; Slach, T. ; Skokanová, H. ; Halas, Petr ; Kallabová, Eva ; Koutecký, T. ; Šebesta, J.
An analysis of selected landscape paintings shows that only a third of them are located directly on a hiking trail, bike path or nature trail. In the case of other landscape paintings, it is possible to make other, hitherto neglected parts of the territory more attractive to tourists by locating the places of the painter's shots, which may lead to their desired deconcentration from the places that are frequently visited by tourists.
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The optimization of forest management strategies on slopes affected by landslides and rock falling – a methodology for forest-planting practices
Bajer, A. ; Balková, M. ; Buček, A. ; Divíšek, Jan ; Friedl, M. ; Halas, Petr ; Kirchner, Karel ; Kuda, František ; Lacina, Jan ; Martiník, A. ; Roštínský, Pavel ; Simon, J. ; Vavříček, D.
Landslides, as well as rock falling, are among natural disturbances, the origin of which the forest management has only a secondary influence. On the other hand, adequate management can reduce the risk of landslides (rock falling). In some specific cases, it can be expected that this management can also prevent origin of landslides. The basic recommendation in the area of forest cultivation in areas affected by landslides is the creation of forest stands of species, age and thickness (height) differentiated, with a small-scale texture. In some cases it is also possible to recommend the shape of the associated forest. Consistent management of the forest transport network must be an integral part of measures in risk areas.
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Monitoring of ecosystems in the area of mining and processing of uranium ores near Rožná and in the Bukovský potok basin in 2018
Lacina, Jan ; Halas, Petr
The study was prepared on the basis of a contract of work from 14.12.2017 for the client DIAMO, s., Of GEAM in Dolní Rožínka. According to this agreement, this year's follow-up follows similar research work from 1998 to 2017, focusing in particular on the repeated examination of vegetation in the form of phylocenological pictures on the test areas defined in previous years, and special attention is again paid to the avifauna of anthropogenically conditioned habitats of the K1 and K2 ponds. In addition, the monitoring of the status of biotopes of ecologically important landscapes was carried out with regard to their potential impact on the activities of the uranium industry. The field survey was conducted between mid-January and mid-November 2018.
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Assessment of Changes of Forest Landscape During the Past 50 Years in the Vihorlat Highlands (Eastern Slovakia)
Lacina, Jan ; Halas, Petr ; Koutecký, T. ; Šebesta, J. ; Veska, J.
In the years 1968 – 1970 the forest typological survey were carried out in the western half of the Carpathian volcanic mountain range Vihorlat (Slowakia). Differentiation of forests into the units of potential natural vegetation followed geobiocenological school prof. A. Zlatník. During the typological survey 155 geobiocoenological plots were established on which phytocenosis and mostly also soil conditions were studied. In the years 2013 - 2015, thus after 45-47 years, most of these research plots were resampled. Our data showed that current phytocenosis doesn´t indicate habitat change resulting in conversion of potential forest vegetation. In terms of today´s forest management wide using of natural regeneration of deciduous tree species we consider as highly positive. However, some landscape changes, especially adverse succession on abandoned pastures located at the foot of the mountain range could cause impoverishment of biodiversity.
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