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Thoughts of Plants
ŠOBROVÁ, Lenka
This diploma thesis called "Thoughts of Plants" consists of two parts, theoretical and practical. The theoretical part focuses on an explanation of the basic thoughts and inspiration that comprise the main resources for the practical part in my thesis. In context of this thesis subject, there is a documentation of the main points in the current art scene, which deals with plant and landscape detail. The practical part is composed of the monumental triptych connected to the subject. This triptych is made of acrylic paint on canvas.
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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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Rural villages as biocentres. Plants mapping utilization for biodiversity evaluation.
JURÁŠ, Jan
Rural villages are important elements in cultural landscape. Thanks his variety here often enact biocentres and make possible to existence wide spectrum of plant, that could occur in other places and by other conditions only rock hard. At present however happens under the thumb of wasteful management to typical provincial nature suppression and to extinction of some species. This work was bent on vegetation investigation in three villages in Volyňsko in district Strakonice. Ascertained kinds spectrum distinguish on the basis of many factors, for example location position, abiotic factors or way of management. To other subject of interest was derived, let us say invasive kinds occurrence as well as protected species. On the basis these results can tell, that the rural villages are in monotonous agricultural landscape significant biotope that it is necessary to protect.
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An experimental study of initial succession on different substrata: analysis of changes in plant species cover and some soil biological parameters and their relationships
KRESÁČ, Martin
A four year experimental study of initial stages of succession on different substrata (sand, peat and gray clay overburden from brown coal mining) was carried out. The substrata were transplanted into two different landscape types in the Czech Republic. Control plots were filled with autochthonous topsoil treated with high temperature vapor. Plots with un-treated autochthonous topsoil were also established. Plant species cover and several soil-biological parameters (soil microbial biomass, basal soil respiration, exchangeable pH(KCl), organic-C extractable by potassium sulfate solution, and nitrate-N content) were measured once a year. Obtained data were mainly processed by unimodal (plant cover data) and liner (soil-biological data) ordination methods. Biological species traits (life span, seed dispersal vector, seed bank type, ecological strategy type following Grime, life form following Raunkiaer) were used to characterize early stages of plant succession. Vegetation and measured soil-biological parameters, except pH(KCl), were significantly changing during four growing seasons. Variance partitioning analysis based on plant species cover data indicated the landscape type to be the main governing factor and physico-chemical characteristics of substrate to be less important during the studied initial stages of succession. The same analysis based on soil-biological parameters showed the reverse result. Great variability of plant species ecological traits was noticed during four growing seasons. The earliest plant colonizers were mainly ruderal, anemochorous terophytes with persistent seed bank. The number of species with C-strategy type increased during the study. The relationship between the average plant species cover and measured soil-biological parameters was also examined during the experimental study of early succession. Direct and indirect ordination revealed the average sum of plant species cover to be weakly positively correlated with soil microbial biomass, basal soil respiration, nitrate-N, potassium sulfate extractable organic-C, metabolic quocient (qCO2) and negatively correlated to exchangeable pH(KCl). The relationship was significant only in the case of microbial biomass and potassium sulfate extractable organic-C. More detailed studies of the relationship between aboveground plant species biomass and soil microbial communities in initial stages of succession are required. Comparability of presented study is limited because not many experimental investigations of similar kind have been presented until now.
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