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Water regime of reclaimed and nonreclaimed heaps
Cejpek, Jiří ; Frouz, Jan (advisor) ; Kuráž, Václav (referee)
Summary: Great Podkrusnohorska spoil heaps in the Sokolov region in Western Bohemia is the largest spoil heaps in the Czech Republic, which was pour million tonnes of overburden soil surface mining of brown coal. The thesis is setting on the basic characteristics of the water regime and water balance of spoil heap soil and thus follows a series of previous works dealing with the comparative development of the reclaimed and unreclaimed area. The areas are long-term monitoring of soil moisture using a dielectric soil moisture meter total water regime was monitored by subsurface with gravitation lyzimeter, runoff and throughfall rainfall. Older unreclaimed plots as well as reclaimed plots have higher porosity, water field capacity and moistre than young sites, however there are limited by water deficiency in similatr way as young sites due to increase in wilting point. Keywords: Spoil heaps, Recultivation, Soil humidity, Water supply, Water balance
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Water regime of reclaimed and nonreclaimed heaps
Cejpek, Jiří ; Frouz, Jan (advisor) ; Kuráž, Václav (referee)
Summary: Great Podkrusnohorska spoil heaps in the Sokolov region in Western Bohemia is the largest spoil heaps in the Czech Republic, which was pour million tonnes of overburden soil surface mining of brown coal. The thesis is setting on the basic characteristics of the water regime and water balance of spoil heap soil and thus follows a series of previous works dealing with the comparative development of the reclaimed and unreclaimed area. The areas are long-term monitoring of soil moisture using a dielectric soil moisture meter total water regime was monitored by subsurface with gravitation lyzimeter, runoff and throughfall rainfall. Older unreclaimed plots as well as reclaimed plots have higher porosity, water field capacity and moistre than young sites, however there are limited by water deficiency in similatr way as young sites due to increase in wilting point. Keywords: Spoil heaps, Recultivation, Soil humidity, Water supply, Water balance
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Influence disturbance of forest on the temperature and humidity of soil
PAVLAS, Jiří
In this study, I attempted to evaluate the impact of two forest disturbances on the soil temperature and humidity in spruce forest. The spruce forests were attacked by bark beetle in the Březník area 17 years ago. Two types of management were applied after the bark beetle attack. The first approach was clear cutting and removing dead trees. The second approach was non-interventional and this zone was left to natural succession. This study compares differences in daily temperature amplitude and volumetric soil humidity between both types of management. I tried to evaluate whether the soil temperature and humidity conditions are explained more by influence of the management or by vegetation cover. Results showed significant difference in daily temperature amplitudes. Temperature amplitudes are about 49 % higher in clear cut areas than in areas with natural succession. Differences are insignificant in soil humidity conditions. The influence of the vegetation on soil temperature and humidity is insignificant. I, too, compared soil temperature and humidity from Březník areas (17 years after disturbance) and Prameny Vltavy areas where the spruce forest decayed recently.
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Hydraulic conductivity under various recultivated growth
CEJPEK, Jiří
Velka podkrusnohorska spoil heap in the Sokolovsko region is the largest heap in the Czech republic, which was created by transfering millions of tons of soil from opencast mining of brown coal. According to a large measuring (large land surveying) of physical and chemical properties on the reclaimed and unreclaimed heap soil were found many hydrological properties. Hydraulic conductivity was measured by Guelph permeameter, moisture was measured by Dielectrical indicator of moisture and last but not least soil carbonates Ca was measured by Janek`s carbonmeter. Water mode and percantual representation of carbonates is markedly influenced by the technology of sending and by the age of heaps of both types, differencies between bottom parts and top parts on unreclaimed soil are conclusive due to crevasses on the top parts. The other factor is the presence of reclaimed vegetation, which have an important role in the pedogenic process.
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