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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Effect of global climate change on hydrological patterns in headwater catchments
 Lamačová, Anna ; Hruška, Jakub (advisor) ; Tesař, Miroslav (referee) ; Kalvová, Jaroslava (referee)
The aims of this theses were (i) to evaluate trends in spring yields in the Czech Republic (period 1971-2007) and trends in runoff from small forested catchments of the GEOMON network during the period 1994-2011, (ii) evaluate the impact of climate change on streamwater chemistry in acid-sensitive catchment (Lysina), and (iii) estimate the impact of anticipated climate change projected according to different CO2 emission scenarios on flow patterns forested (GEOMON) and alpine headwater (Skalnaté Lake) catchments in the periods 2021-2050 and 2071-2100. Significant negative trends on the annual level were observed at 18% of springs while positive trends at only less than 0.5% of 157 tested objects and 4 of 18 regions revealed significant decreasing trend. To these regions belonged the zones of Carpathian Cretaceous and Paleogene sediments in the southeast and northeast of the Czech Republic, the zones of tertiary and Cretaceous basins in the southeast and Proterozoic and Paleozoic crystalline rocks in the central part of the Czech Republic. Most spring yields were decreasing within the summer months June- August (on average 24%) and least between February and April (on average 15%) (Paper I). There were no general patterns found indicating either significant increases or decreases in runoff on either...
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