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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Monitoring of water quality in the river Stropnice
 Petrlíková, Kateřina ; Tesařová, Eva (advisor) ; Potužák, Jan (referee)
Five indicators of water quality, namely biochemical oxygen consumption in five days, chemical oxygen consumption by dichromate method, nitrate nitrogen, ammonium nitrogen and total phosphorus, were determined in the river Stropnice. The samples were monitored at four offtake places along the river monthly during the year 2013. Twice a year water samples were analyzed also fromthe dischargeof the wastewater treatment plants. The results show that some changes of the individual parameters can be traced during the year, such as increase of oxygen consumption and total phosphorus in the summer months. However, no significant fluctuation was indicated for the measured parameters at any of the offtake places. Based on the values of the individual parameters water in Stropnice can be ranked to quality classes II. - IV. In the long-term frame of water quality examination from the year 2008 average indicators' values and characteristic values were determined. The results revealed that neither in this case substantial changes of water quality regarding the measured indicators can be observed.
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Land use changes of agricultural landscape in selected areas of Novohradsko and Stropnicko in broader historical context.
 JIROUŠKOVÁ, Lenka
Changes of land use influence landscape structure, ecological stability, biodiversity and course of biotic and abiotic processes. The intensity of these changes mainly depends on geographic location of the area, land attractiveness and a level of maturity or development of the society. This thesis is focused on evaluation of historical and present changes of land use in Novohradsko and Stropnicko area. This area had in past decades and centuries undergone major landscape changes that are shown on many map sources. These data were elaborated through GIS tools and subsequently analyzed. According to my conclusion, the long- and short-term trends in observed changes of land use have been identified. Since the early 19th Century the arable land area had declined whereas the grasslands had spread out in the studied area. In contrast, recent years resulted in fact that an increase of grass area has stopped which does not coincide with the general effort to grass the LFA.
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