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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Blockfields of the neovulcanic pits in Northern Bohemia: location, morphology, weathering rate.
 Plecháč, Petr ; Křížek, Marek (advisor) ; Hartvich, Filip (referee)
Blockfields as an indicator of landscape development with a specific microclimate is presented in many scientific publications. This diploma thesis is focused on finding the relationship between the hardness of stone blocks and the intake of potential radiation, with an assessment of morphology, location and local conditions. Within the selected study areas in Northern Bohemia was recorded a total of 73 blockfields, of which 22 sites were selected for further investigation. From the results of the statistical analyses was shown the relationship between the income potential of radiation and the degree of ventilation of stone blocks. The analyses also show the relationship between the hardness of stone blocks in the blockfields and the orientation of the blockfields to the world's sides, which proved to be significant. The tests performed by the analyses of each third (high) stone seas have shown the possibility of moving rock blocks downhill.
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Monitoring of turism and its impact on natural ecosystems in "Čertova stěna-Luč" National nature reserve
HYŠPLER, Robin
NNR Čertova stěna - Luč is at the eastern corner of Šumava Mts. region. The reasons for protection are mostly stony slopes, relict pine forests, acidophilous beech forests and Vltava river canyon. I assesed the impact of turism to the natural ecosystems at two localities {--} the first was Čertova stěna ``view point`` and the second one was the left riverside of the river Vltava, at the intersection of turistic paths. I made 14 field surveys, turist computation, questionnary evaluation, and striked introduced and ruderal species of plants. The heaviest impact of turism is at the Čertova stěna ``view point``, where the herb layer is strongly degraded by foots.
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