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Biologie, rozšíření a způsoby regulace Křídlatky {Reynoutria sp.}
VRBOVÁ, Jana
In my diploma thesis I deal with an invasive species of plants of the genus knotweed, the distribution of species and the possibilities of regulation in the area of interest. The work is divided into theoretical and practical part. The theoretical part describes plant invasions, invasive species, basic characteristics and distribution of plants of the genus knotweed. Other negative impacts of plant invasions, costs of combating invasive species, methods of vegetation regulation are also mentioned. The practical part describes the actual monitoring of the area of interest, identified and measured localities, the possibility of regulating the winged vegetation in the area of interest and a comparison with the results of mapping the winged vegetation in the same area of interest, carried out in 1999.
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Possibilities of utilization of knotweed plants ( genus \kur{(Reynoutria)}
VRBOVÁ, Jana
In my bachelor thesis I deal with a summary of information about the possibilities of treatment of invasive plants of the genus Knotweed and the possibilities of using these plants in the Czech Republic. The thesis is divided into several parts. In the first part, I deal with detailed characteristics of specific plants of the genus Knotweed in the Czech Republic, including taxonomic classification and extension. In the next part I deal with ways of using plants of the genus Knotweed in several sectors and possibilities of cultivation and processing. In conclusion, I suggest possibilities of elimination and liquidation of wild knotweed with subsequent useful and effective use of the large amount of phytomass that the plants provide.
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MONITORING OF CHOSEN NON-INDIGENOUS PLANT SPECIES IN SELECTED LOCATIONS OF THE SOUTH BOHEMIAN REGION (FOR EXAMPLE DISTRICT OF ČESKÝ KRUMLOV AND ČESKÉ BUDĚJOVICE)
KORFOVÁ, Gabriela
The main aim of this dissertation is to determine the global occurence of geografically non-indigenous plant species - Giant Hogweed (Heracleum mantegazzianum), Himalayan balsam (Impatiens glandulifera), Japanese knotweed (Reynoutria japonika), Sakhalin knotweed (Reynoutria sachalinensis) and Reynoutria x bohemika in selected locations of the South Bohemian region, for example in district of Český Krumlov and České Budějovice. The theoretical part is focused on the characteristics of selected localities where there is an occurrence of these plants and description of the above-mentioned invasive plant species and thier subsequent liquidation. The result of the dissertation (of the work) are the map´s outputs processed in the Geographic Information System, which record the global occurance of geografically non-indigenous plant species.
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ImageJ - program for scientific processing of digital images
ŠKRABAL, Miroslav
Because image analysis is a very broad topic, this thesis deals only with the use of computer vision and image analysis for common tasks solved in the scientific industry. The thesis investigated the applicability of common hardware and software tools for creating a methodology for measuring the mass area of knotweed leaves. Part of the methodology is a description of its steps, including addressing possible pitfalls that can occur during application of the methodology. Furthermore thesis contains a description of the included macro created for ImageJ analysis program and introduction to the program itself. Finally, there are presented results obtained by application of the methodology.
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