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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Industrial deposits: Are they habitats of threatened or invasive species?
 Vojtíšek, Pavel ; Tonika, Jaroslav (referee) ; Kovář, Pavel (advisor)
There was made many deposits of industrial slags on our landscape during second half of 20th century. Many of deposits were abandoned without recultivation because of missing or inadequate legislation. Often very extreme habitat enables scientific research. Deposits and their surface are developing and stabilizing because of primary succession. This study works with two types of deposits: ash-slag and ore-washery sedimentation basins. During succession many plant species are introduced onto basin plateau. Ecosystem contains many unoccupied habitats and for invasive plant species it's easy to introduce into these free habitats. Contrariwise the ecosystem should pose a refuge point for ecological important plant species. In this study are worked data about total vegetational cover of vascular plants on 21 sedimentation basis (12 ash-slag and 9 ore-washery). From the data package were sorted out plants demonstrably invasive, potentially invasive and endangered plants. An occurrence of the species was compared with the type and age of sedimentation basin. Key words: Sedimentation basin, invasive plant, potentially invasive plant, endangered plant, life strategy, management
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Vliv alelopatických látek obsažených v biomase Ambrosia artemisiifolia L. na vybrané rostliny a odhad aktuálních rizik pro zemědělskou produkci
 Kašparová, Markéta
The effect of the allelopathic substances contained in Ambrosia artemisiifolia L. was monitored on selected plant species. As an accompanying plants Common wheat (Triticum aestivum L.) - spring form, Common Bird's-foot Trefoil (Lotus corniculatus L.), Red Clover (Trifolium pratense L.), Red Fescue (Festuca rubra L.), Timothy grass (Phleum pratense L.), Tall oat-grass (Arrhenatherum elatius L.) and Ribwort (Plantago lanceolata L.) were selected. In cultivation experiments were used extracts from the aerial parts of common ragweed, root extracts and common ragweed plant sown to the tested plants. From the values obtained in cultivation experiments the influence of common ragweed on selected plant species and its impact on agricultural production was evaluated.
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