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Occurrence of invasive plant species on slected locations of north-eastern part of Prague
Šebesta, Václav ; Holec, Josef (advisor) ; Václav, Václav (referee)
This thesis deals with the invasive plants in the northeastern part of the Prague. Data were obtrained from the monitoring during September 2015. The nomenclature of the species were united by Key to the Flora of the Czech Republic by Kubát et al. (2002).
A total of 18 species were found in 561 locations. The most numerous species from all locations include: Conyza canadensis (207 locations), Solidago canadensis (147), Robinia pseudoacacia (125), Symphoricarpos albus (89) and Parthenocissus inserta (77). The least numerous are: Pinus strobus (1), Reynoutria bohemica (6), Impatiens parviflora (7) and Rhus hirta (9). Five species from the designed species list were not found: Heracleum mantegazzianum, Reynoutria sachalinensis, Impatiens glandulifera, Senecio inaequidens and Rudbeckia laciniata.
Species that were most represented along the roads include: Solidago canadensis and S. gigantea, Conyza canadensis and Aster lanceolatus and A. novi-belgii.
Invasive species occurred in 75.6% in sunny locations, in 17% in the penumbra and in 7.5% in the shadow. In dry or drier water regime were found 90.5% of the species. 94.5% of the species were found in sandy and loamy soil. Low degree of coverage up to 10% of the area was found in about 50% sites of invasive species occurrence, average degree were 30% was found in 25% and a high degree of coverage was found in 25% sites of invasive species occurrence.
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Prevention and Management of Security Incidents in the Information Systems
Šebesta, Václav
To achieve correct security assurance of the firm information the analysis of the scope and value information being administered and technologies and tools used and considering the possible impact of the continuity of the organisation if they are lost or destructed. The presentation explains the basic steps connected with the development and implementation of the system managing and preventing the incidents.
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