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Dřeviny vhodné jako doprovod pozemních komunikací
Ferby, Vojtěch
This bachelor thesis deals with the issue of tree selection as an escort of the roads. Many factors influence the choice of the ideal type of wood. These are, for example, habitat conditions, genetic properties of trees, their demands of light, moisture, soil, etc. Moreover it is very important to take in consideration their resistance to salinization, pests or extreme urban conditions. Another choosing factor may lie in the hands of the greenery designer. This was noticeable particu-larly in history, when the selection of woody species was often led by the contem-porary fashion. These trees may not prosper on their location and therefore cli-matic conditions and demands are the top criteria. Nowadays, the nature of the entire planting, the principle of its maintenance, cutting and so on is determined by the up to date legislation.
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Pevnost lepeného spoje v ohybu v závislosti na klimatických podmínkách
Stehlík, Pavel
This diploma thesis deals with the effects on a type of selected wood joint within a specific exposure to natural external climatic conditions on the 3-point bending strength of the bonded joint. The solid robinia wood specimens were glued together with one component polyurethane adhesive. The specimens were joined in width using finger joint, edge joint and dowel joint. The glued joints were exposed to natural external climatic conditions for eight months and later tested for flexural strength every two months.
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Vliv podmínek skladování lepených materiálů na bázi dřeva na houževnatost lepených spojů
Steindlberger, Jan
The aim of this bachelor thesis is to analyze the influence not only of climatic conditions, but also of used adhesive and, last but not least, of the material used, on the toughness of bonded joints. Impact strength is determined when using a cutting machine, the Charpy Hammer. Acacia wood and beech plywood were selected as the gluing material. Three adhesives from different polyvinyl-acetate-based adhesives were used to bond these materials. The tested samples were before the cutting exposed to three different climatic conditions; standard climatic conditions, cold climatic conditions and extreme conditions at an elevated temperature and humidity.
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Hodnocení pěstitelských vlastností odrůdy Solaris v nevinařských podmínkách
Tryzna, Pavel
This diploma thesis deals with cultivation of grape wine varieties in unusual vineyard location. The advantage of PIWI varieties of grape wine are benefitial for this purpose. Grape wine varieties from Czech Republic wine-growing subregions and from northeastern non-wine growing region are examined in this methodology. The research compares analytical values of wines and processes them into graphs and tables. Based on results of this thesis there is a disccussion about whether it is worth to grow grapevine variety ‘Solaris‘ in the above mentioned conditions. The result shows that cultivation of this grapevine variety in the non-wine growing location gives valuable material from which it is possible to make competitive wine product.
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Veltlínské zelené a jeho variabilita ve Znojemské vinařské podoblasti
Jíra, Filip
This bachelor thesis deals with the influence of soil and climatic conditions on Grüner Veltliner. Furthermore, it examines its variability in the Znojmo wine-growing sub-region as the smallest sub-region in Moravia. The main task of the thesis is to map the Znojmo wine-growing sub-region from the point of view of climatic, geological and soil conditions and to mention important grapevine growers and wine producers. In the practical part of the bachelor thesis there is a sensory and basic chemical analysis of wines of Grüner Veltliner variety, year 2017, which are included in the VOC Znojmo appellation system. The acquired knowledge is evaluated and described in detail in the thesis.
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Vinice Šobes
Brimusová, Lucie
The Bachelor work is focused on the Šobes vineyard wich is in the centre of the National Park Podyjí. This paper describes influences on grapevine in general. These include climate, soil nad geology conditions as well as the line of grapevine and green works in the vineyard. The history of the vineyard and varietes of grapevine are also part of the papers research. There were also made certain sensory evaluation and basic chemichal analysis of selected samples of wine. Thanks to he vineyard´s natural conditions, the Šobes belongs among best vineyards in the Europe. The outcomes of the paper shows the necessity of Šobes vineyard´s recovery in order to keep its best status and quality.
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Hodnocení kosatců podrodu Limniris v klimatických podmínkách středoevropského termofytika
Kaššák, Pavol
Dissertation thesis is aimed on the valuation of the chosen taxons of irises from subgenus Limniris in the conditions of middle European termophytics, concretely in the climatically conditions of the Lednice, south Moravia region. Valuated were thirteen signs (length, width and colour of the leaf, height and width of flower, colour of sepals and petals, height of flower stem, number of the flowers on the flower stem, whole amount of flowers on plant in the third growing year, clump compactness in the fourth growing year, smell of the flower, flowering date) in sixty nine taxons (11 species).
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Dynamika rozkladu tlejícího dřeva v přirozených temperátních lesích
Přívětivý, Tomáš
The decomposition dynamics of deadwood was investigated using robust 40-years-long temporal dataset and physical properties of decaying logs in alluvial, fir-beech and fir-spruce-beech natural forests. While the downed logs of most alluvial tree species are decomposed in 23-42 years depending on DBH, the large-sized logs of Quercus robur had a residence time 73 years. Deadwood of Fagus sylvatica decomposed completely in 30-53 years and Abies alba in 53-95 years depending on the macroclimatic conditions and DBH. Deadwood of Picea abies had a decomposition time 58-81 years on the site of a mountain mixed forest. In addition, the effect of the mortality mode and position of logs on the decomposition time was confirmed. Evaluation of deadwood density on sampled logs showed that the remaining mass (decay rate) varies greatly between the logs with the same values of time since death. This confirmed the need for robust data for observations about deadwood decomposition.
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