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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Long-term trends in water chemistry and matter flows of three watersheds due to their management.
 VÁCHA, Aleš
The diploma thesis is based on long-term monitoring of small watersheds in the Šumava region, differences and trends in the water chemistry in the years 1998 - 2015 and the differences in water balance and erosion of solutes in the years 2008 2015 are evaluated. Comparing average rainfall-runoff relationship on the catchments revealed little difference between the basins of the Horský (wetland) stream (runs off 37 %) and Bukový (forest) stream (32 %), while the basin of Mlýnský (drained pasture) creek runs off 60 % of incident precipitation. Basin of drained pastures Mlýnský - showed worsening of the parameters, which are expressed in lower proportion of water retained in the basin and also a higher proportion of dissolved solids in the effluent water. This corresponds to the overall erosion of substances from the basin, which is evident from the results, both forest and wetland basin matters detained while the drained basin is losing them for a long time. Only in the case of nitrate, ammonia, Ca2+ and Mg2+ loads from the forest and wetland basin are three times lower than the load from the drained pastures. For PO43- it is about one third less and in the case of SO42-, Cl-, K+ and Na+ it is about one half less.
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The agricultural management impact on matter losses in the model catchment of the Stropnice river
SLAVÍKOVÁ, Lucie
The content of this thesis The agricultural management impact on matter losses in the model catchment of the Stropnice river was to observe the quality of surface water and matter losses in five small catchments of Stropnice river. The samples from physico-chemical analysis were medium values from 2001 to 2011. There were observed pH, conductivity and concentrations of main ions and carbon in the surface waters. The results were analysed with multivariate Measures Anova - Tukey HSD post- hoc analyse. For the selected parameters a correlation analysis of the closeness of relationships was performed. There were differences between in sulphates surface water chemism in the upper parts of five streams. In the lower parts of five streams were significant differences between arable soils and meadows. The results confirmed that occurs a positive relation between the chemism of surface water and land use.
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Dynamism of soil carbon and selective soil characteristics in model landscape Stropnice subcatchments
 BODLÁK, Lubomír
The aim of the theses was to describe soil organic matter changes in model landscape Stropnice subcatchments that have different biotopes and agricultural and forest management.Particular aims were: 1) to determine the link between landuse, soil environment changes and catchment matter losses. 2)to experimentally prove the water regime impact on carbon and other substances losses during and between vegetation seasons.
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