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Vliv výsadeb borovice kleče (Pinus mugo) na biotopovou a druhovou diverzitu arkto-alpinské tundry ve východních Sudetech (CHKO Jeseníky‚ NPR Kralický Sněžník)
Zmrhalová, Magda ; Zeidler, Miroslav ; Wild, Jan ; Treml, Václav ; Souček, Jiří ; Šenfeldr, Martin ; Potůčková, Markéta ; Petr, Libor ; Novák, Jan ; Majkus, Zdeněk ; Kyncl, Tomáš ; Kuras, Tomáš ; Křížek, Marek ; Kopalová, Irena ; Kočvara, Radim ; Kočí, Martin ; Kašák, Josef ; Holuša, Jaroslav ; Hédl, Radim ; Černá, Karolína ; Banaš, Marek ; Hošek, Jan
Zpráva shrnuje výsledky řešení projektu za rok 2007. 2. část zprávy obsahuje řešení těchto úkolů: Vliv borovice kleče (Pinus mugo) na půdní kopečky (thufury) v Hrubém Jeseníku; Hodnocení růstových parametrů smrkových skupin nad alpinskou hranicí lesa; Vliv alochtonní borovice kleče na vybrané skupiny bezobratlých; Stav vegetace na pasekách po odstranění kleče (Pinus mugo) v Malé kotlině v Hrubém Jeseníku; Rychlé svahové procesy a jejich vztah k porostům borovice kleče; Návrh managementových opatření porostů borovice kleče (Pinus mugo) v Hrubém Jeseníku a Králickém Sněžníku.
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Optimalization and application of iodine spectrophotometric determination in soils.
HŘIVNÁČ, Jakub
This work deals with the content of iodine in soils, furthermore with obtaining and processing samples from four selected sampling areas, all of which are in the proximity of the Arnoštov settlement in district Prachatice in the foothills of Šumava. The soil samples were obtained from forest, meadow, pasture and fallow soil in 2009 to 2011. The iodine content in the soils was determined by using the spectrophotometric method, which had been optimized for the soil samples. Iodine concentration in lysimeter water was determined by using method inductively coupled plasma - mass spectrometry. The results obtained from each sampling areas were compared with each other and with the results from other areas. Consequently, the iodine concentration results in the soils were compared with the iodine concentration in lysimeter waters. It was found, that the highest iodine content in soils was measured in a sample obtained from Area 1 (meadow), part B in a depth of 16 - 30 cm in June of 2009, namely a content of 8,67 mg of I per kg of dry soil. The lowest content of 1,42 mg of I per kg of soil was found in the area 4 (forest), sample obtained in June of 2010, in the L horizon. By comparing iodine content with iodine concentrations in lysimeter waters, it was concluded that the concentration of iodine in lysimeter waters does not depend on iodine concentrations in soils and that it does not even represent the absolute iodine content in soil, as was determined by comparing the results from Arnoštov with data acquired from Agrovýzkum Rapotín in Jeseníky.
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Conflict between biofuels support and food security
Vyhnalová, Kateřina ; Jílková, Jiřina (advisor) ; Pělucha, Martin (referee)
In recent years biofuels support is on the rise and is leading to rise in their productions. Biofuels are produced on land with agricultural products that is why there is rising land competition. Food prices are rising fast and food security is deteriorating. Hypothesis is that countries and international organizations are introducing measuress to guarantee food security. The aim of the thesis is to analyze interventions that respond to impacts of biofuel support in selected countries. The hypothesis is right. States are introducing measures to guarantee food security. Developed states give more financial donations to humanitarian institutions and support development of second generation biofuels that is not competitive with food production. Developing states implement for example increasing food export duties or prohibition of food exports, reducing food import duties and reducing tax levy on food. Some developing states have decided for food safeguarding.
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The hazards of soil pollutants and their effects on the human health
ŠVEHLOVÁ, Jana
Good soil condition belongs to the basic requirements of well-ballanced environment. That is why the soil has to correspond to hygienic requirements and be protected against substances harmful to human health, e.g. toxic materials, germs of transmissible illnesses and parasites. The most common cause of soil contamination is anthropogenic incidence. Contaminated soil belongs to waste and has to be removed in a proper way. is A special way of waste removal is soil decontamination. Its goal is to remove harmful substances and regain the original use of the soil.
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Examples of road networks considering water retention and accumulation in rural and settled zones.
MARKOVÁ, Dana
This bachelor thesis' s main purpose is to earmark suitable examples of road networks considering water retention and accumulation both in rural and settled zones. The background research in this thesis presents theoretical survey about road networks in the cohesion with water. This research has been composed from the open sources, most of them valid technical standards and from the recommended literature. The second part of thesis includes demonstration focused on documentation of road networks already realized in compliance with technical knowledge contained in the background research (braced field road in the cadastre land Skřípov, Prostějov county; field roads including drains in the cadastre land Chotěbudice; main drain including road drain along the filed road C5 in cadastre land Vojnice).
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Biofuels and food safety
Štěpničková, Zuzana ; Melichar, Jan (advisor) ; Kaprová, Kateřina (referee)
The aim is to draw attention to an inefficient allocation of resources and capital, which has resulted in rising food prices and the high number of hungry people in developing coutries, which European and U.S. subsidy policy does nt accumulate capital and invest in their production. I focused on the prices of raw materials for biofuel production in connection with legislative obligations and CO2 emissions, including the impact of indirect land use changes (ILUC) and based on searches draw conclusions from primary studies that deal with macroeconomic modeling. This thesis confirmed the hypothesis that the current agricultural policy on biofuels does not comply with the theory of comparative advantage of growing food where it is advatageous both economically and environmentally.
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