Název:
Dynamics of surface water quality changes in model headwater areas of the Czech Republic
Autoři:
Fraindová, K. ; Matoušková, M. ; Kliment, Z. ; Vlček, Lukáš ; Vlach, V. ; Šajnarová, L. Typ dokumentu: Příspěvky z konference Konference/Akce: První konference projektu PERUN, Průhonice (CZ), 20231016
Rok:
2023
Jazyk:
eng
Abstrakt: River headwaters have a high environmental value. Unfortunately, the biogeochemical processes in headwaters in context of different rainfall-runoff conditions and specific land cover have not been fully examined. This study focuses on changes in correlations of 16 biogeochemical parameters related to different types of rainfall-runoff events and land cover condition for eight headwater catchments in Central Europe. Multiple methods as linear regression, Spearman rank correlation, Principal Components Analysis and C/Q hysteresis loops revealed main relationships. Presence of peatlands and waterlogged spruce forests had decisive influence on the biogeochemistry (mainly for CODMn, humins, Fe, P-PO43− TP, and N-NO3−). The strongest positive correlation of organic matter (CODMn) and Fe is represented in a catchment with the largest area of damaged forest (70%), but with a smaller proportion of wetlands (8%). High flow rates influence the release of greater amounts of organic matter and N-NO3−.
Klíčová slova:
electric conductivity; headwater areas; organic matter; peatbogs; raifall-runoff events; water quality; waterlogged areas Zdrojový dokument: Sborník příspěvků z První konference projektu PERUN, ISBN 978-80-7653-063-8