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National Repository of Grey Literature 2 records found  Search took 0.03 seconds. 
Influence of physiogeographic conditions on runoff extremity (Case study: Comparison of small catchments in the central area of Šumava Mountains)
 Hojovec, Daniel ; Janský, Bohumír (advisor) ; Matoušková, Milada (referee)
In connection with the increasing occurrence of extreme hydrological situations, new opportunities for flood protection are emerging. Among these options also includes the gradually increase water retention capacity and to reduce runoff variability in headstream areas. This bachelor thesis deals with the comparison of three physical geographical different river basins in the headstream area of Šumava mountains. The main aim of this study is a research influence of physiogeographic conditions on runoff extremity in the catchment of individual selected streams on the basis of a comparative analysis. Extremity runoff is represented by selected flood situations that were processed on the basis of data from the experimental monitoring of Department of Physical Geography and Geoecology, Faculty of Science, Charles University in Prague. The opening part of this thesis consists of literary research, physical geographical and hydrographical characteristics of all catchment areas. The main part of the thesis is focused on description and comparison of extreme situations in the monitored catchments. The conclusion of the thesis is an evaluation, which consists in the assessment of the influence of physiogeographic conditions on runoff extremity. In the final evaluation it was found that the reaction of Černý...
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Potential natural vegetation of the model transect in Třeboň basin (South Bohemia, Czech Republic)
 Boublík, Karel
The paper deals with preliminary results of reconstruction vegetation mapping based on geobiocoenological principles (soil, climatic and growth conditions) and published palynological studies from the study area. On the basis of occurrences and growth features of climax trees (especially Fagus sylvatica and Abies alba) and published palynological studies, I suppose lower potential occurrence of Pinus sylvestris and Quercus robur in contrary to existing reconstruction maps (maps of reconstructed natural vegetation, potential natural vegetation and forest site maps). In these maps, proportion of Fagus sylvatica is probably underestimated. I assume potential occurrence of beech forests or forests with a great proportion of beech also on dystric cambisols and podzols developed from gravel sand of pleistocene alluvial terraces or on pseudogleys.
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