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Changes in the steppe vegetation of the solitary conic hill Oblík in the České Středohoří Protected Landscape Area
Zmeškalová, Jana ; Suchara, Ivan (advisor) ; Chýlová, Tereza (referee)
Změny stepní vegetace v NPR Oblík 8 2. Abstract Changes in the steppe vegetation of the solitary conic hill Oblík in the České Středohoří Protected Landscape Area This diploma thesis is based on a comparison of vegetation and chemical attributes of the soil between the years 1973 and 2006/7 in the model area of the Oblík hill. The primary source of old botanical and pedological data is a series of diploma theses by students from the Department of Botany, Faculty of Science, Charles University from the seventies of the 20th Century (Březinová 1973, Klimešová 1973, Suchara 1974). The study is limited by old methodology. Vegetation data were compared on the different levels - phytosociological relevés, non-destructive estimation of shrub biomass, photogrammetry of shrub communities and syntaxonomical classification. Environmental changes were studied by repeating chemical analyses (contents of N, C, K, Ca, C/N, pH) and indirectly using Ellenberg's indication values. Today, there is higher species diversity and a high turnover of species in the area. The number of pastures and mesophilous broad-leaved grassland species has decreased. The number of nitrophilous and margin species, weeds and shrubs has increased. The area of the syntaxonomical units Festuco valesiacae-Stipetum capillatae, Koelerio...
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The effect of past land-use on species diversity
Hubáčková, Barbora ; Münzbergová, Zuzana (advisor) ; Chýlová, Tereza (referee)
This thesis is review of scientific studies on the effect of past land-use on species diversity. The aim of the thesis is to summarise knowledge of past land-use changes and their impact on plant communities and species diversity of grasslands. Those are mostly affected by human activities and have been used already for more than 8 000 years. In recent time, the agriculture has intensified, the main production is concentrated and marginal areas are abandoned. Many studies focus on spontaneous succession on these abandoned areas and the relationship between species diversity and past land-use. Their results suggest that current vegetation composition is mostly determined by habitat continuity rather than by recent land-use. In the last part of the thesis, I introduce the area of White Carpathian Mountains where my future research will be held. Key words: seminatural grasslands, historical management, biodiversity, past land-use changes, secondary succession
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Changes in the steppe vegetation of the solitary conic hill Oblík in the České Středohoří Protected Landscape Area
Zmeškalová, Jana ; Suchara, Ivan (advisor) ; Chýlová, Tereza (referee)
Změny stepní vegetace v NPR Oblík 8 2. Abstract Changes in the steppe vegetation of the solitary conic hill Oblík in the České Středohoří Protected Landscape Area This diploma thesis is based on a comparison of vegetation and chemical attributes of the soil between the years 1973 and 2006/7 in the model area of the Oblík hill. The primary source of old botanical and pedological data is a series of diploma theses by students from the Department of Botany, Faculty of Science, Charles University from the seventies of the 20th Century (Březinová 1973, Klimešová 1973, Suchara 1974). The study is limited by old methodology. Vegetation data were compared on the different levels - phytosociological relevés, non-destructive estimation of shrub biomass, photogrammetry of shrub communities and syntaxonomical classification. Environmental changes were studied by repeating chemical analyses (contents of N, C, K, Ca, C/N, pH) and indirectly using Ellenberg's indication values. Today, there is higher species diversity and a high turnover of species in the area. The number of pastures and mesophilous broad-leaved grassland species has decreased. The number of nitrophilous and margin species, weeds and shrubs has increased. The area of the syntaxonomical units Festuco valesiacae-Stipetum capillatae, Koelerio...
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