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Restoration of species-rich meadow ecosystems on mine spoil dumps.
MATOUŠŮ, Anna
Main object of this study was to accelerate and to direct succession in the course of a 5-year field experiment on a mine spoil dump. The effects of (1) transplanting whole meadow turfs, (2) spreading meadow soil with turfs, (3) spreading diaspore-rich mown vegetation and (4) different types of management, as possible restoration techniques are discussed in the thesis
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Possible utilization of grass material
KOBERNA, Daniel
The objective if this degree work is creating a survey of possible uses of surplus grass material which is caused by animal farming reduction and by bringing the ground in less fertile areas of our country to a standstill. In the work possible uses of the grass are described, especially its use in the energy industry as a fuel source for the production of heat and biogas. Classical usage of the grass material as a food source for livestock or for the production of compost is described here as well. Examples are shown there of energy kinds of grass, which seems to be a promising renewable resource of biomass for favourable economic results. The harvest of the grass material and its consequent prossesing is done by production lines, that is why a survey of such lines and their economic figures connected with the operation of these machines is also included in this work. The economic part of this work contains many formulae that can be used for counting out all the costs connected with the operation of the grass harvest machine and for evaluating the effectiveness of the return on investment into this machine
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The effect of different management on plant diversity and biomass production of grass stands
JÍLKOVÁ, Lucie
The aim of this study is to assess the effect of different management practises on submontane meadow plant diversity, species richness and biomass production. The experiment was carried out in the submontane region Šumava (Kaplicko, Velký Chuchelec, Údolí Velenovského potoka). There were applied four types of management {--} continual grazing, mulching, fallow (Velký Chuchelec) and mowing (Údolí Velenovského potoka). Plant diverzity and hay production has been observing for three years. Obtained data were used for calculation Simpson and Hill index diverzity, value of fodder quality and nutritive and water regime (condition) of site. Values were used for statistical computing (ANOVA, Fischer LSD test). The plant species diverzity and biomass production are significantly affected by grassland management (treatment). Mulching and fallow lead to lower species richness and increases the coverage of grasses. Hay production is higher on mulching and fallow stands and on mowed stands than on continuously grazed stands. Mowing leads to higher species richness. Is necessary to conserve this status by mowing or the better way is to intesify contemporary management.
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