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Added value of green roofs
Hrachovina, Vojtěch ; Žák,, Antonín (referee) ; Petříček, Tomáš (advisor)
Introduction is focused on analyze green roof like a part of buiding construction, when thesis assembly principles of right proposal green roof layers. Main part describes characteristic properties green roofs at global impact. We get some added values after comparison with classic roof types. Master thesis consists of survey of added values of green roofs in these categories: life cycle assessment, microclima, outdoor climate, water retention. End of thesis devote to psychological effect of green roofs include questionnare about relationship between czech society and green roofs.
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Response to abiotic stress in plants growing in green façades of temperate urban environment
Hrochová, Růžena ; Lhotáková, Zuzana (advisor) ; Havelková, Lenka (referee)
With increasing urbanization the temperature of cities is increasing and an effect of urban heat island arises. Vegetation, particularly vertical greenery systems: facades and walls, is mitigating urban heat island and reducing temperature. The aim of this work was to define these systems, their effects on the urban microclimate, to create an overview of the most used plants for greenery systems and to summarize their reactions to abiotic stresses of cities in a temperate region. Mediterranean studies were used in this work due to the scarcity of temperate climate research, which results could become valuable with climate change. Selecting proper vegetation can be done using habitat template, plants that are acclimated or adapted to the urban environment. Plants affect the urban microclimate through shading and transpirational cooling, which ideally contribute to reducing the heat island effect with optimal irrigation. Stressors followed in this work were drought, high temperature and irradiance, air pollution and salinity. To all these stressors plants reacted with limiting physiological functions and reducing growth. The common reaction was a decrease photosynthesis rate and chlorophyll content. Ractions of plants of vertical greenery systems to different stressors and their combinations are...
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Data Analysis of Heatmap of Brno
Kozubek, Jakub ; Hurta, Martin (referee) ; Mrázek, Vojtěch (advisor)
The thesis deals with the analysis of temperature data for the area of the city of Brno. It is focused on the design and verification of hypotheses for warming and cooling parts of the city. The result of the work are methods for statistical testing and for regression analysis implemented in the Python programming language, the results obtained using these methods and their subsequent interpretation in relation to the originally proposed hypotheses.
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Environmental assessment of the building impact on the surroundings of Dukla barracks in Opava
Selník, Petr ; Kolínek, David
The carried out environmental study of the original area of the Dukel Barracks in Opava provides an assessment of the impact of buildings on its surroundings and establishes evaluation criteria for comparing the original solution of the area with the newly proposed solution. It is provided with an international evaluation methodology GREENPASS, which aims precisely at determining the functional parameters of construction projects, for example, also from the point of view of the new European agenda EU Taxonomy. The study evaluates the overheating of the surroundings, the possibility of creating a heat island, the effect of wind flow and ventilation, the degree of shading, changes in outflow parameters and CO2 sequestration. Dukla barracks in Opava is a set of historical military buildings from the end of the 19th century, which the Statutory City of Opava plans to revitalize and transform into residential buildings with an emphasis on the creation of a community space for the creation of social ties between its residents. The new design of the area is involved selected historical reconstructed barracks buildings, new green areas, sports fields, parking for residents and visitors. The area of warehouses, original stables and operational buildings will be replaced by new modern apartment buildings of a private developer. The presented study evaluates an area of 5 ha with a central courtyard, a sports field, original buildings and new apartment buildings.
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Fenomén urban gardening
Kozáková, Petra
The diploma thesis aims to introduce the phenomenon of urban gardening and identify the benefits provided by the urban environment and society. The benefits of urban horticulture are identified as a possible adaptation measure concerning ongoing climate change. The types of urban gardening, approaches and possibilities of its application in practice are presented. Trends in urban horticulture and individual aspects are described on the example in the Czech Republic, the Netherlands and Sweden. The specific benefits of urban gardening were expressed on a specific example of a community garden in Brno using CBA analysis (cost-benefit analysis). The author worked here with data provided to her directly from the staff of the selected community garden and also based on the "willingness to pay" method, in which she addressed 100 respondents. The result of the CBA analysis was an evaluation of the community garden project, which determined the return on investment and its net present value.
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Green and blue infrastructure: means of reducing surface temperatures in the urban environment
SEDLÁČEK, Jan
Climate change may accelerate the Urban Heat Island (UHI) effect with many consequences for the well-being of human populations in cities. Green and blue infrastructures (GBI) are presented as a way to mitigate the UHI effect. In our study, the influence of GBI (primarily less studied types) on surface temperature (ST) was tested using a thermal camera. Various types of GBI (e. g. tree shade and lawn) and their combination were compared.
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Vliv vegetace na letní teplotní extrémy ve městech hodnocené z pozemních a leteckých dat
ROHÁČ, Václav
This thesis examines the effect of surface types and vegetation types on ambient temperature during summer temperature extremes. The theoretical part targets the topics of remote sensing, electromagnetic radiation, urban and global climate. Within the practical part, 3 areas of interest were selected from aerial hyperspectral data from the territory of the statutory city of České Budějovice, each representing a different part of the city in terms of land use. By means of data analysis, graphs showing the influence of the relative representation of the variant surfaces on the temperature were created using the linear regression method. From the maps of tree species occurring in the parks of the first two areas, the most abundant species were selected and the average temperature within 2 meters of them was examined. The thesis also includes an evaluation of a questionnaire answered by city residents on the topic of preferences and knowledge about the urban green space.
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Časové změny vlivu vegetačního krytu na místní klima intravilánu obce pomocí metod dálkového průzkumu Země
NÁROVEC, Václav
The diploma thesis deals with changes in vegetation indices and surface temperatures of previously undeveloped peripheral areas of České Budějovice and its immediate surroundings, which were built up after 1990. Areas that were undeveloped before 1990 and spread over either permanent grassland or arable land with agricultural crops. These areas are divided into four types - industrial areas, service areas, residential areas of multiapartment houses and residential areas of solitary family houses. The work uses Landsat satellite images for the years 1990, 1993, 1999, 2006, 2010, 2015 and 2020. The studied areas were examined in the period before construction, just after construction and with a distance after construction. In the period before the transformation (1990), there were high values of vegetation indices NDVI (Normalized Difference Vegetation Index), SAVI (Soil Adjusted Vegetation Index) a NDMI (Normalized Difference Moisture Index) and low values of surface temperatures in most of the studied areas. However, during the construction, the vegetation decreased and thus the values of vegetation indices decreased and the surface temperatures increased. Subsequent improvements were observed in areas with multi-apartment and family houses, where the vegetation of parks and residential gardens grew after a certain time. In the vicinity of the industrial area and service areas, where vegetation did not grow, the values of the monitored indices remained low.
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Tepelný ostrov města - analýza stavu a možnosti zlepšení
CHVOJKOVÁ, Aneta
Increasing surface temperature in urban environments along with the creation of heat islands is one of the most visible phenomena of a worsening climate in general. This phenomenon is inherently linked to the increasing rate of urbanisation and urban development. Heat islands in cities are formed by an accumulation of high surface temperatures and differ significantly from areas in their rural surroundings. The surface temperature depends on several factors. These include, including but not limited to, colour, permeability or material of the surface, as well as the presence of vegetation in the given area or the layout of the streets. Anthropogenic activity caused by fossil fuel combustion or transport also has a significant impact on the temperature in urban environments. One of the most efficient tools to reduce the rise in temperatures is in particular high-quality vegetation and water retention in urban environments and the landscape in general. The area of interest of this work, which deals with the topic described above, is Kardašova Řečice with twelve determined locations. Using satellite data analysis, problematic areas in terms of surface temperature and several smaller heat islands were identified. The results of the spectral vegetation indices analysis showed a mutual correlation between the surface temperature and the presence of vegetation, which was analysed by NDVI and NDMI spectral vegetation indices data. The highest temperatures and the lowest surface humidity were found in areas with the least vegetation (greenery). The situation was the opposite in areas with sufficient vegetation cover and water for evapotranspiration. Since vegetation has been proved to have a significant positive impact on reducing the surface temperature in urban environments, a strategy was suggested to improve the urban living conditions by implementing a suitably selected green and green-blue infrastructure.
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Vliv vegetace na teplotní režim městského prostředí
SEDLÁČEK, Jan
This thesis is aimed at the influence of vegetation on temperature in urban areas. In order to research this influence, a thermal camera was used to measure surface temperature in a number of places in České Budějovice. The results show that vegetation not only reduces thermal amplitudes, but also influences the temperature of surrounding surfaces (up to a few metres). Lower temperatures compared with conventional surfaces were reached during the summer days not only by trees, but also by less common green structures, such as ornamental plants or a green roof and wall. According to the results, some suggestions were brought in order to increase the effectivity of green infrastructure and to reduce the Urban Heat Island effect.
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