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Predikace druhového složení těžeben na základě biotopového mapování okolní krajiny: využití charakteristických druhů vyšších rostlin
SLABA, Michal
The surrounding habitats play an important role in the spontaneous vegetation succession in disturbed sites. They serve as donor sites for species colonizing various post-mining sites from the close surrounding. This diploma thesis deals with the species composition in post-mining sites and the surrounding habitats up to the 1 km distance from the locality. The results indicate, that basalt quarries share the largest amount of species with their surrounding habitats. The studied methods have got limited capability to predict the species composition of post-mining sites using only the knowledge about habitat types occurred in the surrounding. On the other hand, species composition of the surrounding habitats, defined by a selection of the representative relevés of the Czech National Phytosociological Database (CNFD), seems to be more promising approach. It could provide more precise results applied in ecological restoration of post-mining sites in the Czech Republic.
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Dry grassland restoration on a limestone quarry landfill using different sowing densities
Strušková, Eliška ; Kuťáková, Eliška (advisor) ; Mudrák, Ondřej (referee)
Grassland restoration by sowing seeds of native species is one of the most commonly used methods of community restoration, especially in cases when conditions are not favourable for spontaneous succession, for example due to absence of a suitable seed source in the vicinity or introduction of unsuitable substrate. Although seeding is commonly used, there is still no consensus on what seeding densities are sufficient to restore the target community. The aim of this thesis is to assess the influence of seeding density on species composition of the restored xerotherm grassland on two different substrates in a limestone quarry in the Czech Karst during eight years from the beginning of the restoration. It also assesses the influence of the subsequent management of the site, specifically grazing. The results of this thesis show that the sowing density influences plant community composition and vegetation cover only in the first five to six years of the community development and only on the quarry substrate. On the ex-arable soil seeding density does not significantly affect the community composition. Plant community on this substrate is dominated by ruderal species. Grazing promotes vegetation development towards a community of dry grassland and suppresses non-target ruderal species. These findings can...
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Revitalisation of post-mining sites
Veselý, Martin ; Chuman, Tomáš (advisor) ; Matějček, Tomáš (referee)
This work introduces and compares some basic facts about recultivation and alternative methods of restoration, such is revitalization and natural succession. Recultivation is the way of quick revegetation, but it's expensive and in many cases contraproductive considering biodiversity of recultivated sites. Whereas, approaches based on principles of ecological restoration have many positives. They can create much valuable landscape structures and ecosystems than recultivation, and they enhance biodiversity and conservation of rare species.
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Uranium mining, its impact on environment and recultivation
Peterková, Alena ; Malíček, Jiří (advisor) ; Frouz, Jan (referee)
In past, the Czech Republic was one of the most important areas for mineral resources mining. In the period after the Second World War, the country was a very important conqueror of the uranium ore, thanks to a massive production of nuclear energy and nuclear weapons. However, in the 1980s, the interest in uranium declined and in the 1990s almost all of the uranium mines in the country were closed. Rožná was the last place of uranium mining, but it was closed in 2017. Nowadays, there are reclamation works in these mining places. Planning of a reclamation for is not always simply. It is necessary to think about the account of the method of extraction, which was used in the territory, the subsoil, distance from dwellings, underground water, fauna and flora of the surrounding nature etc. The land reclamations are often done in the wrong way and therefore, the extraordinary potential of the landscape is not exploited. People have a strong tendency to interfere this landscape, for example by supplying nutrients for creating of an intensive agricultural landscape. They often do not realize that the mining caused a change of abiotic conditions. The newly created habitats are often inhabited by rare and endangered organisms, living in early succession stages and missing in the surrounding landscape....
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Grassland restoration in abandoned quarries by sowing seed mixtures
Strušková, Eliška ; Kuťáková, Eliška (advisor) ; Knappová, Jana (referee)
There are many former or still active quarries in the Czech Republic that had disrupted the natural landscape. Under certain conditions, species-rich herbaceous communities can develop in abandoned quarries and these can also serve as a refuge for species that slowly disappear from our landscape due to human activity. In order to create suitable conditions for establishing valuable habitats, it is necessary to choose thoroughly the method of recultivation. Since abandoned quarries are frequently isolated from natural seed resources, sowing of regional mixtures is one of possibilities of recultivation. This bachelor thesis deals with all the steps of this method of recultivation, from the importance of seed origin and their composition in a mixture, through the method of seed collection, methods of sowing, to the combination of seed sowing with the other approaches supporting recultivaton. Keywords: recultivation, abandonded quarries, ecological restoration, seed sowing, semi-natural vegetation
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Uranium mining, its impact on environment and recultivation
Peterková, Alena ; Malíček, Jiří (advisor) ; Frouz, Jan (referee)
In past, the Czech Republic was one of the most important areas for mineral resources mining. In the period after the Second World War, the country was a very important conqueror of the uranium ore, thanks to a massive production of nuclear energy and nuclear weapons. However, in the 1980s, the interest in uranium declined and in the 1990s almost all of the uranium mines in the country were closed. Rožná was the last place of uranium mining, but it was closed in 2017. Nowadays, there are reclamation works in these mining places. Planning of a reclamation for is not always simply. It is necessary to think about the account of the method of extraction, which was used in the territory, the subsoil, distance from dwellings, underground water, fauna and flora of the surrounding nature etc. The land reclamations are often done in the wrong way and therefore, the extraordinary potential of the landscape is not exploited. People have a strong tendency to interfere this landscape, for example by supplying nutrients for creating of an intensive agricultural landscape. They often do not realize that the mining caused a change of abiotic conditions. The newly created habitats are often inhabited by rare and endangered organisms, living in early succession stages and missing in the surrounding landscape....
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Revitalisation of post-mining sites
Veselý, Martin ; Matějček, Tomáš (referee) ; Chuman, Tomáš (advisor)
This work introduces and compares some basic facts about recultivation and alternative methods of restoration, such is revitalization and natural succession. Recultivation is the way of quick revegetation, but it's expensive and in many cases contraproductive considering biodiversity of recultivated sites. Whereas, approaches based on principles of ecological restoration have many positives. They can create much valuable landscape structures and ecosystems than recultivation, and they enhance biodiversity and conservation of rare species.
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Reclamation of land affected by mining and their possible integration into project of comprehensive land adjustment
MATOUŠKOVÁ, Jana
The aim of this thesis is detailed description of solved reclamation in the selected location Cep II after gravel extraction. The part of thesis solves property settlements on the parcels concerned. The literary review outlines generally issue of mining and its impact on the landscape and ways of deal with these negative impacts. Besides the classical methods of reclamation (agricultural, forestry and hydrological reclamation) is described a method of using spontaneous restoration. There is also particularised the possibility of incorporating suitably reclaimed parcels into territorial system of ecological stability in terms of land adjustment.
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