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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Status of standing and flowing surface waters chemical parameters of the selected part of the Podkrušnohorská dump in the Sokolov
 KORANDOVÁ, Martina
This diploma thesis deals with the description of the chemistry of stagnant and flowing surface waters in selected part of the Velká podkrušnohorská dump and subsequent statistical processing of data. Sulfates are dominating element of the stagnant and flowing water, which form sulfato complexes with elements Ca2 + and Mg2+. The values CHSKCr in stagnat water are half compared to flowing water (upper and lower reaches). Higher values CHSKCr are result of biochemical, chemical and biological processes in the aquatic environment in stagnant water.
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Status of soil organic carbon content of selected reclaimed sites in the Podkrušnohorská dump.
 KOBESOVÁ, Martina
The main aim of this thesis was to assess the status of soil organic carbon in newly shaped soils called Velká podkrušnohorská dump in the Sokolov district and evaluate the information in relation to the physic-chemical properties of soils. Another objective was to determine the relationship between the stable and labile fractions of soil organic carbon. The amount of soil carbon (stable fraction) was measured in the solid soil samples and there was the analysis of basic physic-chemical parameters of the soil performed. The highest concentration of soil carbon was measured in the stand alders and larch. The amount of soil carbon (labile fraction) was measured in the water extract. The highest values were measured in the stand silver birch and alders. Based on this data the quotient of the labile fraction from the stable fraction was determined and the correlation of the labile and stable fractions was made. It was found out that the higher quality soils are located at the leafy trees, but it leads to leaching of organic carbon. The bulk density and coarse-grained soil fraction was determined from the physical properties and these data were used to calculate the stock of soil organic carbon. The highest value was measured in deciduous forests with small-leaved linden, in coniferous forests with larch. The stocks of soil organic carbon were converted into codes by land cover categories and the thematic map was created. It was found out that the leafy trees are much more appropriate for forest restoration, because they are characterized by the rapid initial growth, easily degradable plant litter and stable form humus. Deciduous forests are also characterized by more developed soil substrate, which is however unstable.
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