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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Vliv drenážního odvodnění na jakost vody
 Svobodová, Natálie
The thesis deals with the issue of drainage of agricultural soils and its effect on water quality. The aim was to describe the basic concepts associated with drainage systems, especially with controlled drainage, and specifications of the quantities measured in the field. Data obtained from monitoring of drainage water quality at the controlled drainage site in Uherčice has been evaluated. Based on this data the effect of regulated drainage and drainage without regulation on the quality of drainage water was compared. The results indicate that conductivity is most influenced by the nitrogen content in the water. Although the concentrations of substances are largely higher in regulated drainage, their proper controlled drainage can encourage the retention of substances in the area, while reducing the removal of substances by the drainage system from the area.
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A effect of drainage system on quality of surface water
 KAMARÝT, Jiří
My bachelor thesis is focused on quality of surface water. My thesis is written by the form of framework literature search. And it inteferes with the fields of climatology, geology, topography and especially hydrology and water chemistry. The content of the literature search is getting acquainted with the reasons of building of underdrainage and its particular development in the Czech Republic. Furthermore there are contrivances described which cause the change of quality of water after building drainage system and quantification of holding of drainage systems in concentration of analytes of surface water. Water is important environmental component in nature and it is necessary to pay attention to its high quality. The soil contrivances, causing pollution of surface water, were considerably affected by building of drainage system in a large area of the Czech Republic in 1950?s. Those drainage systems were built due to intensive agriculture. But there were no thoughts about following conservation of countryside, particularly water and soil. There still have been consequences of insensitive interference with countryside even these days. My bachelor thesis can be used as a base for my thesis which is supposed to enrich it with my own measurement and further comparison.
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