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Energy production and use of fast growing trees
Šebela, Jakub ; Štelcl, Otakar (referee) ; Moskalík, Jiří (advisor)
This bachelor thesis is aimed at the theme production and energy use fast growing trees and implements a comprehensive energy balance of production of fast growing trees. The first part is aimed at definition, origin, sources, chemical composition, important energy properties of biomass and how to obtain energy from biomass. The next part is aimed at fast growing trees, especially those that are cultivated in the Czech Republic. This part includes history of cultivation, sources and establishment of short rotation plantations in the Czech Republic. The last part is aimed at energy balance of production of fast growing trees at the short rotation plantations and it also includes economic aspect of short rotation plantations.
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Problematika zalesňování zemědělské půdy a růstové podmínky pro pavlovnii z aspektu fyzikálních půdních vlastností
Polách, Vojtěch
The aim of the work was to analyze the issue of agricultural land a orestation by fast-growing trees and to explore the soil environment in relation to the ecological and growth demands of the Paulownia in terms of soil physical properties. The subject of the work was the area of the plantation on agricultural land with the planting of Paulownia (clone in vitro 112) from the years 2016, 2017 and 2018 near the village of Střelice u Brna. Data gathering was focused on the physical properties of soil in terms of water and air mode and compaction. The basic soil chemistry obtained data will be given for the evaluation of growth conditions. The resulting data were statistically evaluated and the results were presented using appropriately designed tables and graphs. The charts were supplemented with comments and evaluated. The results revealed suitability of researched soil environment of aspect of chemism while the physical properties became evidently insu?cient. In addition to soil environment also the climatic conditions were found critical for Paulownia planting. Although the climatic data collection was not direct subject of this research I found – on the base of ?eld investigation – I can state their unsuitainability for Paulownia cultivation due to frost threat.
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Energy production and use of fast growing trees
Šebela, Jakub ; Štelcl, Otakar (referee) ; Moskalík, Jiří (advisor)
This bachelor thesis is aimed at the theme production and energy use fast growing trees and implements a comprehensive energy balance of production of fast growing trees. The first part is aimed at definition, origin, sources, chemical composition, important energy properties of biomass and how to obtain energy from biomass. The next part is aimed at fast growing trees, especially those that are cultivated in the Czech Republic. This part includes history of cultivation, sources and establishment of short rotation plantations in the Czech Republic. The last part is aimed at energy balance of production of fast growing trees at the short rotation plantations and it also includes economic aspect of short rotation plantations.
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Growing of over - growth tree species
KOSTOHRYZOVÁ, Lenka
The comparison of agronomical practices and land capability of selected deciduous with coniferous wood species, especially fast growing tree species on agricultural land, is the theme of this bachelor work. This work deals with the cultivation of fast growing tree species, the comparison of their growth figures and agricultural techniques. Fast growing tree species were cultivated in these localities: Svatý Jan nad Malší (Chlum nad Malší), Všemyslice- Neznašov and Lesy města Český Krumlov s.r.o. The research was focused on the comparison of yields of deciduous (poplar) with coniferous trees (spruce, larch), agricultural techniques. There is the comparison of yields with yields from the available literature, in conclusion.
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