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Vegetation of heat pipelines and participation of invasive species
SVĚTLÍKOVÁ, Petra
Both climate change and plant invasions are phenomenons affecting vegetation structure and its functioning. This study compares vegetation of heat pipelines with surrounding vegetation and investigated survival of thermophilic species in the zone on heat pipelines. Reactions of plants on global warming, including possible invasive behaviour of alien species, are briefly discussed.
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Climate change and engineering precaution in all-planetary scale
Kos, Z. ; Košková, Romana
All the fundamental analysis of climate resulted in prediction of the climate change. The main impact of greenhouse gases production of mankind will be global warming. The political negotiations against climate change organised up to now require regulation of greenhouse gases only. Actions like the Kyoto Protocol will not stop the increase of concentrations of greenhouse gases and further global warming. On the other hand, the methods of engineering the whole planet - geo-engineering - are capable to reduce the global temperature by engineering methods.
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Climate change and plant transpiration
Šír, Miloslav ; Tesař, Miroslav ; Lichner, Ľ. ; Syrovátka, O.
The article shows how the plant transpiration cools the boundary level of the atmosphere. In a summer day, when the heat input is 5 to 6 kWh/m2 per day, in the mountainous and submontane areas of the Czech Republic (600 to 1400 m a.s.l.) the plant transpiration decreases: (1) maximum temperature of plant cover from 47 to 25 degrees C, (2) maximum temperature of boundary level of the atmos-phere from 29 to 21 degrees C, (3) maximum temperature of the soil in the depth of 15 cm from 15 to 8 degrees C. The cooling caused by plant transpiration substantially af-fects the energy balance of the land surface. Insufficient transpiration caused an increment of thermal energy of about 23
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Impacts of climate change on the water quality in a dimictic reservoir
Růžička, Martin ; Hejzlar, J. ; Cole, T. M.
The study deals with prospective change in water quality in a reservoir caused by predicted climit change. Change of quality of the water on its way through watershed and reservoir was simulated by an modeling system consisting of a precipitation-runoff model,an empirical model of the river water composition and a hydrodynamic and water quality model of the reservoir processes.Boundary conditions for model were based on the 20-year real data series(1981-2000) and predicted climate characteristics according to the results of the contemporary global circulation models(GCMs).
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Research on possible climate change impacts
Huth, Radan ; Dubrovský, Martin ; Žalud, Z. ; Šťastná, M. ; Trnka, M. ; Hejzlar, Josef ; Buchtele, Josef ; Růžička, Martin ; Kalvová, J. ; Nemešová, Ivana
Brief information about the projects on climate change impact research running at the Academy of Sciences. Their common part is the construction of climate change scenarios for experimental sites.
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Environmental Problems in Europe in Relation to the Environmental Policy of the European Union
Medková, Kateřina ; Jeníček, Vladimír (advisor) ; Abrhám, Josef (referee)
This thesis deals with certain environmental problems in Europe and with attempts to solve these environmental problems within the framework of the European Union. The purpose of this work is to make its readers acquainted with the scope of the EU environmental policy and Community legislation on the protection of the environment. The thesis is focused on four main subject-matters: (i) climate change as a consequence of the global warming process, (ii) air pollution and the ozone layer depletion, (iii) water contamination and (iv) soil degradation. The issue which of the environmental problems require a regional approach and which a global approach is also considered in the thesis.
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Specifics and problems of countries in the Horn of Africa
Mikeš, Martin ; Steinmetzová, Dana (advisor) ; Pavlík, Petr (referee)
The paper is concerned with the problems of countries in the Horn of Africa (Ethiopia, Eritrea, Djibouti and Somalia). The first part provides general geographical, historical and demographic information about the Horn of Africa. Further it analyzes the political and security situation in this region, with a special focus on piracy in Somalia. The second part, in particular deals, with economic problems and region specifics problems such as an economic dependence on agriculture and the impact of climate change, further macro economical development, foreign aid, standard of living and the fall-out from HIV/AIDS on poverty. The last part describes territorial and commodity structure of foreign trade with special an emphasis on Ethiopia, where important role has coffee growing.
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Development of EU's energy dependence
Glockner, Martin ; Vondrušková, Barbora (advisor) ; Bič, Josef (referee)
There is a huge disproportion, in the world we know today, in terms of geographical distribution between the mining sites and the location of final consumption of energy resources. The aim of this thesis is to analyze this imbalance, to quantify the dependence of the EU region and to analyze European energy policy, its conception, evolution and transformation.
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