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Toxicity of overburden and what determine it
Haurová, Jaroslava ; Frouz, Jan (advisor) ; Bartuška, Martin (referee)
The bachelor thesis provides an overview and summary of the possible causes of phytotoxicity on mineral extraction sites, mentions the impact on plant biota, the impact on surrounding ecosystems and explores the possibilities of reducing or mitigating the effects. The main cause of phytotoxicity is low pH, which arises from the natural weathering of native materials and results in most soil processes and contamination. A way in which phytotoxicity can be mitigated on spoil heaps sites are by choosing appropriate reclamation.
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Investment in Cryptocurrency
ŽIŽKA, Stanislav
The bachelor's thesis presents the basic pillars of cryptocurrencies, such as history and gradual development, what algorithms bitcoin uses and its functions, as well as introduces the main substance of this industry. Furthermore, this work presents the possibilities of using cryptocurrencies, like acquiring, selling, evaluating and taxing bitcoin, its conditions for taxation and possibility of safekeeping, using it as payment methods on the black market or financing other criminal activities. This part also includes an analysis of the possibilities and conditions of buying and selling selected cryptocurrency. The work also deals with calculating the returns and annual yield of investing in cryptocurrencies for a duration of eight years, and includes a survey of people's awareness of this issue. The conclusion of this thesis employs a multicriteria decision-making process to select an appropriate exchange and cryptocurrency for investment.
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Zpracování strategického scénáře vývoje zásob a těžeb buku na ŠLP "Masarykův les" Křtiny s výhledem na 30 let
Mašek, Michal
This piece of work seeks to suggest an optimal strategy for beech felling to avoid high felling fluctuations in the future. This particular suggestion is based on the last two forest management plans. Divisions based on the age class in the last two decades were analysed (described?) and compared with each other. The calculations of felling plan were based on two different scenarios. Based on felling balance comparison, both scenarios could be used. The second scenario is preferred based on economic reasons.
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Possibilities of land reclamation of areas afected by mining and waste disposal in suburban territory
KOSOVÁ, Markéta
The subject is "Possibilities o fland reclamation of areas afected by mining and waste disposal in suburban territory". The area is Odkaliště Hodějovice. This plant lies in three municipal territories {--} České Budějovice, Staré Hodějovice a Srubec. The decanting plant is used to stock of ash materiál from Teplárna Inc. České Budějovice and steam plant Nové Vráto. The area of this territory is c. 52,6 ha. In the decanting plant will proceed a biological reclamation. The purpose of this reclamation is {\clqq}return to nature``.
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Environmental contamination of mining areas and the possibilities of their phytoremediation
Pecina, Václav ; Pospíšilová, Ľubica (referee) ; Pavlů,, Lenka (referee) ; Komendová, Renata (advisor)
Environmental pollution with heavy metals is a global problem escalating in areas with mining. The search for solutions to this problem has been the subject of research for the past decades. This work is conceived as a set of four case studies focused on environmental pollution of mining areas and phytoremediation of polluted soils. The conclusions of all four studies are discussed in the context of the situation in Mongolia, where the investigation of this issue is at an initial stage. The results of the environmental pollution investigation in the mining areas showed (I) the unsuitability of the transformation of the mining-processing plant and the adjacent heap in Příbram into a forest park due to the persistent heavy pollution of the soil with the heavy metals (As, Cd, Pb and Zn) causing potential health risks for visitors and inhibition of the tree seedlings even after the implementation of the reclamation project and (II) the low level of soil pollution of the mining areas in Mongolia with no expected risks to the local population. The results of the phytoremediation studies confirmed the potential of Lupinus luteus L. and Festuca rubra L. in combination with specific additives (mainly biochar from willow chips, poultry feather ash and chalcedonite, respectively) for aided phytostabilization of soils polluted with Cd, Cr, Cu, Ni and Zn, and Cr(VI), respectively, and thus the potential for use in phytoremediation of heavy metal-polluted soils in mining areas. Regarding uncontrolled grazing in Mongolia, phytostabilization of heaps and making them inaccessible is necessary to reduce the risks of spreading contamination and intoxication not only of livestock. A promising species for phytoremediation in Mongolia may be Larix sibirica Ledeb.; a suitable type of mining waste management aided phytostabilization focusing on the use of potentially available manure and wood chips. Future research should implement experiments with identified plant species and additives and find other suitable local species capable of creating a continuous vegetation cover.
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Assessment of disused sand and gravel pits in the Třeboň region from the perspective of landscape ecology
Eliášová, Kateřina ; Matějček, Tomáš (advisor) ; Lipský, Zdeněk (referee)
This thesis summarizes findings gained about abandoned sand and gravel pits located in the Třeboňsko Protected Landscape Area. A study of written documents, old maps, aerial images and a field survey of selected sites were used to find out information on mining and mining pits. In the survey, erosion of mining walls, pollution, land use, land cover, dominant and invasive plant species and moisture of mining pits were monitored in sectors of approx. 1 ha or the bank length of about 500 m. A total of 127 sites was included, 37 of which were surveyed in the field. A classification has been created based on age, size, moisture conditions and current land use. Changes caused by mining, including changes in land use and land cover before and after mining, as well as the interaction of mining sites with the Territorial System of Ecological Stability (ÚSES) were also monitored. The majority of sand and gravel pits are small with an area less than 1 ha, dry pits predominate, and most sites were abandoned in the 1970s to 1990s. In about half of the cases, the land cover or land use from before mining have been restored. The main land cover change is the formation of large lakes and forests while the non-forest surface is more diversified after mining. Sites converted into arable land or built-up areas are...
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Cryptocurrency – a modern kind of money
Petrenec, Vojtěch ; Baumgartnerová, Alena (referee) ; Jašková, Jana (advisor)
Kryptoměna se stala známým fenoménem ve světě bankovních a elektronických plateb, ale pro širokou veřejnost je stále záhadou, a ne vše je vysvětleno tak, aby s ní mohl kdokoliv obchodovat. Tato práce se zaměřuje na kryptoměny. Studie se zaměřuje na původ kryptoměn, principy, na kterých jejich zabezpečení funguje, proč jsou jejich transakce nevysledovatelné a jak jsou tyto převody prováděny. Následně se práce zabývá tím, kde může majitel uchovávat své kryptoměny, jaké typy peněženek existují, čím se těžba kryptoměn zabývá a co lze jejím prostřednictvím získat. Jednotlivé kryptoměny jsou diskutovány ke konci práce, včetně jejich historie a které peněženky jsou vhodné pro každou minci. Dále se tato práce věnuje fiat měnám, včetně jejich historie a ekonomických funkcí, které plní. Nakonec jsou tyto ekonomické funkce aplikovány na kryptoměny. Cílem této práce je získat větší přehled o kryptoměnách, včetně toho, co jsou zač, jak fungují a jak s nimi zacházet.
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Legal aspects of brown coal exploitation limits
Beňasová, Kateřina ; Sobotka, Michal (advisor) ; Damohorský, Milan (referee)
The thesis aims to provide an analysis of the legal limits imposed on brown coal exploitation in the Czech Republic, including an assessment of how these limits enter into particular stages of coal mining. The first chapter summarizes the applicable mining law legislation. The second chapter deals with restrictions set out by protection of the environment rules. Furthermore, the following chapter focuses on specific topic of so called ecological limits of exploitation. The fourth chapter points out the limits laid by the right of ownership. Finally, the thesis comprises a summary of contained conclusions.
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Properties of reclaimed post mining catchments and its effect of run of chemistry
Hurychová, Renata ; Přikryl, Ivo (advisor) ; Rojík, Petr (referee)
After the end of hydric recultivation from the monitored source of watering, artificially bulit-up lakes are fed with the water from their own basin. This water is not so systematically monitored as compared to the water from the new lake and the sources of its filling. This thesis summarizes findings about the developement of artificially made basin in the mining area and explains differences between various basins. Further, this work deals with the characteristics of water feeding lake "Chabarovicke jezero (Milada)", which was bulit-up during hydric recultivation of the mineshaft in the soft-coal quarry Chabarovice. Monitored basins have different area, slope, vegetation coverage and distribution of dissolved compounds. These factors have significant impact on the character of the water in affluents. We found out, that affluents from the own basin have high concentration of dissolved compounds resulting in the unwanted enrichment of the lake. Big problem was the high concentration of sulphates and nitrates, which in all affluents, except for one, exceed tolerated limits for surface waters. In the course of time, concentrations of dissolved compounds go down. Particular affluents differ between each other and the main impact on the water characteristic is the slope, exposition and area. In the...
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