National Repository of Grey Literature 31 records found  previous11 - 20nextend  jump to record: Search took 0.01 seconds. 
Soil water regime of reclaimed and unreclaimed post mining heaps
Cejpek, Jiří
This PhD thesis compares the water regime of reclaimed and unreclaimed spoil heaps after brown coal mining, with special regard to the development of hydrological properties of soils, which are determinant for the movement and retention of water in the soil. The basic influence on the supply of soil water has the technology of pouring the spoil heaps and aging, which co-regulates the development of vegetation. During the development of soil's spoil heaps increases field water capacity and water retention, but also increases the wilting point. These changes are related to the accumulation of organic matter in the soil and the degradation of claystones to particle size of physical clay. The development of the ability of the spoil heaps soils to bind water is greater in reclaimed areas, where the upper organomineral horizon develops more rapidly, but there is also a wilting point and water consumption. On unreclaimed area, the soil substrate develops more slowly. Overall, the differences in water regime between reclaimed and unreclaimed areas are small.
Analýza stavu porostů smrku ztepilého (Picea abies) ve vztahu k pedologickým charakteristikám prostředí na LS Vsetín
Matějka, Petr
The bachelor thesis compares the prosperous and non-prosperous habitat in the cadastre of Velké Karlovic according to their pedological characteristics with respect to the growth and life of Norway spruce. The area of interest is located in the flysch zone of the Western Carpathians. The specific placement of claystone and sandstone layers has a significant impact on the total soil water regime at the sites under investigation. Both sites form ecologically unstable spruce monocultures, which amplifies the negative effects of water deficit. In the non-prosperous habitat, the physical and hydrophysical properties of the soil were assessed as unsuitable for spruce growing. An optimal woody composition with a predominance of beech was proposed, supplemented with larch, ate and cherry
Soil water regime of reclaimed and unreclaimed post mining heaps
Cejpek, Jiří
This PhD thesis compares the water regime of reclaimed and unreclaimed spoil heaps after brown coal mining, with special regard to the development of hydrological properties of soils, which are determinant for the movement and retention of water in the soil. The basic influence on the supply of soil water has the technology of pouring the spoil heaps and aging, which co-regulates the development of vegetation. During the development of soil's spoil heaps increases field water capacity and water retention, but also increases the wilting point. These changes are related to the accumulation of organic matter in the soil and the degradation of claystones to particle size of physical clay. The development of the ability of the spoil heaps soils to bind water is greater in reclaimed areas, where the upper organomineral horizon develops more rapidly, but there is also a wilting point and water consumption. On unreclaimed area, the soil substrate develops more slowly. Overall, the differences in water regime between reclaimed and unreclaimed areas are small.
Legal aspects of water retention in the landscape
Houžvičková, Markéta ; Žákovská, Karolina (advisor) ; Sobotka, Michal (referee)
Legal aspects of water retention in the landscape Abstract This diploma thesis deals with the legal aspects of water retention in the landscape in response to the current problems associated with impaired landscape retention capacity such as drought, erosion or floods. The author first outlines the factual and legal context of the issue, which is followed by an analysis of conceptual, administrative-legal and economic instruments of the Czech legal order that can improve water retention capabilities of the landscape. The diploma thesis analyses the relevant instruments of the Water Act, Forest Act, Act on the protection of agricultural land or Act on protection of nature and landscape. Consequently, it deals with the role of land-use planning, land consolidation and environmental impact assessment for the issue. The thesis includes comprehensive evaluation of the relevant legal regulation in terms of its effectiveness and possible proposals de lege ferenda.
Zpracování studie revitalizace malého vodního toku
EIBL, Jiří
This diploma thesis focuses on the possibilities of restoration of a small water stream and the construction of a small water reservoir. The small water streams and small water reservoirs are not only the landscape-forming element in the countryside but also, they are used mainly as rectification of water regime in the countryside. In the past there were used inappropriate ways how to modify watercourses or land, there came about ignoring water reservoirs and even water reservoirs were disturbed. Because of that, it came about the harming of ecosystems, small retention of water in the countryside and about the disruption of the natural functions of water streams.
Soil water regime of reclaimed and unreclaimed post mining heaps
Cejpek, Jiří ; Frouz, Jan (advisor) ; Moldan, Bedřich (referee) ; Tesař, Miroslav (referee)
This PhD thesis compares the water regime of reclaimed and unreclaimed spoil heaps after brown coal mining, with special regard to the development of hydrological properties of soils, which are determinant for the movement and retention of water in the soil. The basic influence on the supply of soil water has the technology of pouring the spoil heaps and aging, which co-regulates the development of vegetation. During the development of soil's spoil heaps increases field water capacity and water retention, but also increases the wilting point. These changes are related to the accumulation of organic matter in the soil and the degradation of claystones to particle size of physical clay. The development of the ability of the spoil heaps soils to bind water is greater in reclaimed areas, where the upper organomineral horizon develops more rapidly, but there is also a wilting point and water consumption. On unreclaimed area, the soil substrate develops more slowly. Overall, the differences in water regime between reclaimed and unreclaimed areas are small.
Assessment the effect of revitalizing measures of chosen peat bogs in the upper Vydra River basin on their water regime
Doležal, Tomáš ; Kocum, Jan (advisor) ; Kliment, Zdeněk (referee)
Assessment the effect of revitalizing measures of chosen peat bogs in the upper Vydra River basin on their water regime Abstract: Despite a number of research projects, the influence of peat bogs on the hydrological regime remains a largely unexplored topic. In the past, several peat bogs in the Šumava National Park were exposed to a very strong anthropogenic pressure. Subsequently, revitalizing measures were applied to mitigate the impact of human interventions, to stop the degradation of these precious habitats, and to reform the disturbed peat bog water regime. This thesis is focused especially on fluctuations of water table level and on the hydrological regime in the catchments of Rokytka and Cikánský Brooks. Thesis further develops the topic solved in author's bachelor thesis called "Peat bog revitalizing measures and their effect on runoff dynamics in the Otava River headstream area." It contains experimental research of the influence of drainage canals and revitalizing measures on water table fluctuation. It also aims to identify the extent to which meteorological factors contribute to changes in groundwater level and to assess the present state of revitalization measures and their influence on the runoff regime. Key words: peat bogs, revitalizing measures, Šumava Mountains, water regime
The influence of way and intensity of grassland exploitation on fodder value and biomass production
BĚLÍK, Michal
The main aim of this thesis was to evaluate the methods and intensity of use of grasslands that have an impact on the value of the forage and biomass production. The analysis of the selected four sites with different types of management. They chose two meadows and pastures two, of which one pasture is used in a combined manner.
Floristic diversity monitoring of the locality Branský les, South Bohemia, in the context of planned expansion of peat extraction
Konvalinková, Lucie ; Petrů, Anita (advisor) ; Vachová, Pavla (referee)
The aim of this bachelor thesis was to collect data on floristic composition in the territory of Branský les II, South Bohemia. The area of interest is situated in proximity to the peat extraction field. There existed assumption that the species composition would have been heavily influenced by the proximity of the mining site. In 2015, a detailed field survey was carried out in the area that included habitat mapping and floristic research. The evaluation of the data emphasized the current representation of problematic plant species (invasive and expansive), as well as abundance of rare or endangered species. The current species composition of the locality corresponds with that of degraded peat forest. Due to the massive drainage, the natural succession accelerates together with gradual eutrophication, moving from the nearby waterways to the centre of the territory. In the territory of Branský les II, biotopes influenced by human activities predominate over the natural ones.
Hydrological and soil erosion control importance of non-productive habitats in coal post-mining landscape restoration
Korol, Daniel ; Hendrychová, Markéta (advisor) ; Kovář, Martin (referee)
The present thesis deals with the issue of a literature review of surface mining in Most and its surroundings. It focuses on changes in the area due to surface mining, and describes their remedy in several ways. Emphasis is on water treatment and other affected constituents in nature. It also deals with describing a detailed definition of the area and non-productive habitat. The following section contains a methodology for field measurement - infiltration attempt made by a single-cylinder, during which found the average hydraulic conductivity of forests, meadows, successions and ruderals. The experiment was conducted at the lignite quarry dumps Czechoslovak army, Ležáky and Vršany.

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