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Scarificator for mechanical soil preparation
Mašek, Petr ; Pokorný, Přemysl (referee) ; Mergl, Václav (advisor)
The bachelor's thesis deals with the design of a mounted disc scarificator connected in the frontal three-point hitch of a universal agricultural tractor with the performance class up to 160 kW. The scarificator working parts are the disc trencher and the ripper knife. The introductory part includes a research analysis which concerns with reforestation and the mechanization used for it. The next part focuses on the conceptual design of the scarificator, the necessary power calculation for the disc trencher drive and the determination of the drive type. In the final part, the thesis focuses on the stress analysis of the machine frame. The work also includes drawing documentation.
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The bark beetle and decline of the spruce forests - educational program
KOŠKOVÁ, Anna
Bachelor thesis focuses on creation of educational curriculum about bark beetle and decline of the spruce forests. Whole curriculum is aimed to pupils of the 6th and 7th class of elementary schools. The literature review deals with forest vegetation stages, life cycle of the bark beetle, then there are described ways how to avoid its uncontrollable spreading and possibilities of growing new and resistant forests. Practical part of this bachelor thesis is devoted to educational curriculum itself. In conclusion is discussed the usage of this curriculum in other educational facilities.
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Evaluation of global changes of forest land based on remote sensing
Hladká, Anna ; Štych, Přemysl (advisor) ; Kupková, Lucie (referee)
Evaluation of global changes in forest area based on remote sensing data Abstract: The aim of this project is using remote sensing data to assess change in global forest area. This work should give the outline of the principles of land cover classification, with a focus on forests based on satellite images, but also show a real solution in the evaluation of changes in forest areas in two selected regions. The first part is performed a literature review of all aspects of this sub-topic from the basic principles of remote sensing across the typology and characteristics of satellite sensors, which are giving the satellite images to land cover classification systems and characteristics of forest area. The next section describes the basic procedure for classification of satellite imagery and its possible variants. In my work there are explain the image corrections, the supervised and unsupervised classification, the method of checking the accuracy of classification or use of software. Selected area for my work was Riau in Indonesia and state of Oregon, USA. To these regions there are demonstrated practical procedure for classifying land cover and then its changes from the forest areas. In conclusion of my work the results are discussed and compared with available land cover databases. Key Words: Remote Sensing,...
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Evaluation of global changes of forest land based on remote sensing
Hladká, Anna ; Štych, Přemysl (advisor) ; Kupková, Lucie (referee)
Evaluation of global changes in forest area based on remote sensing data Abstract: The aim of this project is using remote sensing data to assess change in global forest area. This work should give the outline of the principles of land cover classification, with a focus on forests based on satellite images, but also show a real solution in the evaluation of changes in forest areas in two selected regions. The first part is performed a literature review of all aspects of this sub-topic from the basic principles of remote sensing across the typology and characteristics of satellite sensors, which are giving the satellite images to land cover classification systems and characteristics of forest area. The next section describes the basic procedure for classification of satellite imagery and its possible variants. In my work there are explain the image corrections, the supervised and unsupervised classification, the method of checking the accuracy of classification or use of software. Selected area for my work was Riau in Indonesia and state of Oregon, USA. To these regions there are demonstrated practical procedure for classifying land cover and then its changes from the forest areas. In conclusion of my work the results are discussed and compared with available land cover databases. Key Words: Remote Sensing,...
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