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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Fytogeografická analýza rozšíření vybraných xero-termofilních taxonů bylin podél kaňonu Sázavy ve středních Čechách / Phytogeographical analysis of distribution of selected xero-thermophilous herbaceous taxa along the Sázava River valley in Central Bohemia

Vlasák, Tomáš January 2017 (has links)
This study is focused on a phytogeographic analysis of the distribution of selected xero thermophilous herb taxa along the Sázava Canyon in Central Bohemia. The research was done in 62 localities scattered along the major river stretch from Ledeč nad Sázavou to the confluence of Sázava with the Vltava Riever. The Sázava River was divided according to the river mileage into 8 even sections where there were 6 or 7 larger representative localities further selected. In each locality there was obtained the semi quantitative floristic inventory of species according to a pre prepared check in list with 57 taxa, further a detailed exploration of the locality was performed including the measurement of the area (in ha), direct perpendicular distance to the Sázava riverbed (in km), distance of the locality related to the river mileage, proportion of slopes of southern expositions, by means of conservative method using paper maps, calculation of the coefficient of variation of local altitudes (i.e. the assessment of vertical complexity), reading of geographical coordinates by tourist GPS receiver and finally a detailed determination of bedrock types at individual localities. The results were processed and then statistically evaluated in the program CANOCO software for multivariate analyses. The CANOCO program calculated that the influence of species composition in the given areas describes approximately 8.6 % of the total variability of individual species. This influence is proven to be statistically significant on the alpha level = 5%. The analysis, using observed data, calculated that 28.9 % of total variability of the vegetation composition in the studied floristic areas is influenced by the chosen variables. This work may serve as a comprehensive resource of the sites for future research, also it brings a valuable floristic data for the nature conservation purposes.
62

Návrh revitalizace zeleně ve zvolené lokalitě / Proposal for a revitalization of greenery in the selected area

MAREK, Michal January 2017 (has links)
In this diploma thesis is being solved a castle garden in Český Krumlov. It's current state and historical development is summarized. The garden was founded by Jan Kristián from Eggenberg in 17. century. The garden has gone through significant changes over the years. Those changes can be seen from attached plans. At first baroque garden become mostly romantic one. The biggest change is placement of revolving auditorium though. Before the auditorium was built, beautiful flower beds ware on this spot. Those beds ware the pride of the garden. Most of this work is focused on current state of the garden. From summarized current state and discussed gardens in Kroměříž and Lednice is obvious, that current state of the garden is very neglected and the garden needs regeneration.
63

Sukcese vodní a mokřadní vegetace na pískovnách

MÜLLEROVÁ, Anna January 2017 (has links)
Vegetation sampling was carried out to determine processes of succession of aquatic and wetland plant species. Different stages of wetland and aquatic vegetation were analyzed in sand pits in the Třeboňsko Protected Landscape Area in the Czech Republic. Moreover different sizes of phytosociologial relevés of aquatic vegetation were analyzed to determine sufficient size for detection of successional changes.
64

Živé ploty v krajině

Drábková, Kateřina January 2016 (has links)
The focus of master thesis are hedgerows in the landscape. The aim is to describe particular aspects of hedgerows in the landscape and define their structure and spatial arrangement. The main output is project documentation containing draft hedgerow and reflecting the theoretical findings. Thesis should also contribute to enhancing the public awareness of this important element of scattered vegetation.
65

Návrh rekonstrukce doprovodné vegetace vodního toku

Zielinski, Filip January 2016 (has links)
Watercourses cross our landscape and they are indispensable part of it as part of water cycle. Watercourse and its accompanying vegetation constitute a functional element of the landscape. In The thesis summarizes information from available domestic and foreign literature sources in the literature review. It describes the characteristics of watercourses, banks and accompanying vegetation, its features and principles of a restoration and care. Possibilities of a biological and biotechnical stabilization of banks are also mentioned. This information has been applied in the design of reconstruction of accompanying vegetation of watercourse. 850 meters long stretch of Mohelka River in northern Bohemia was selected as a model object. On the stretch analyzes of vegetation and banks were carried out. The design of silvicultural measures, new plantings and banks stabilizations was based on these analyzes. The care plan was also designed. For all the designed measures the costing was made.
66

Srovnání semenné banky s recentní vegetací různých stanovišť v nivě řeky Lužnice

JONÁŠOVÁ, Barbora January 2017 (has links)
The thesis reports comparison of soil seed bank with actual vegetation in alluvial sites of the upper stream of Lužnice river in respect to three biotopes. The study focuses on two different methods of soil seed bank investigation and aims to reveal the applicability of macrofossil analysis for palaeoecological records and its interpretation.
67

Hodnocení vegetace pobřeží zatopených pískoven s využitím obrazové analýzy fotografického materiálu / Evaluation of vegetation flooded coast sand using image analysis of photographic material

HEYDUKOVÁ, Kateřina January 2012 (has links)
The main aim of this study was added and verified metodology, analysis of quality and quantity coastal vegetation, considering experience about my previous bachelor´s work and with help pictorial analysis. The ekotonal vegetation were analysed at 9 km long section of coastline, included three sandy-gravel lake (Cep II., Tušť a Františkov). Pictorial analysis, photographs about coastline, was refilled in fytocenology snapshots. Pursuase of this study were discussed influences of cause succession coastal vegetation, species variety and utility of method analysis of pictorial to evaluace vegetation.
68

Srovnání vegetace sjezdových tratí s umělým a přírodním sněhem v CHKO Bílé Karpaty a v CHKO Beskydy / Comparison of vegetation on ski slopes with artificial or natural snow in CHKO Bílé Karpaty and CHKO Beskydy

KOCKOVÁ, Jitka January 2011 (has links)
Vegetation cover of 24 ski slopes both with artificial and natural snow was studied; on each slope 5 phytocenological relevés measuring 4 x 4 metres were taken. A method of direct gradient analysis (RDA) was used to detect differences in composition of phytocenological reléves on the ski slopes with natural or artificial snow. However, no impact of use of artificial snow on vegetation was identified. During the winter season of 2009 and of 2010 samples of artificial and natural snow were taken for chemical analyses. The chemical composition differed significantly; artificial snow contained more NO3-, SO42- and Ca2+ ions and its pH was more alkaline in comparison with natural snow.
69

Hodnocení vlivů na životní prostředí - případová studie. Prostorové variantní řešení vnitřní výsypky a navazujícího prostoru velkolomu ČSA. / The avaluation of influences on environment - case study. Spatial variant arrangement of inner dump and connected area of the ČSA mine.

ŠRÁMKOVÁ, Lucie January 2007 (has links)
Evaluation datums about development landscapes. Surveying vegetative types. Evaluation influence elements anthropogenic empty weight on landscape and proposal solving special - interest territory.
70

Paleoekologická studie prameniště v centru starosídelní oblasti. / Palaeoecological study of mire in the centre of an old-settlement area.

BERNARDOVÁ, Alexandra January 2009 (has links)
The palaeoecological development of alum mire since early Eneolithic on the basis of the results of macro-remains, pollen, and chemical analysis. The developement of local vegetation and nearest surrounding area was studied.

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