Heterogeneity in properties of bottom sediments in selected lakes of the Wel Landscape Park

Determination of Degradation Products of Plant Origin Pigments in the Bottom Sediments of Lakes / Oznaczanie Zawartości Produktów Degradacji Barwników Pochodzenia Roślinnego W Osadach Dennych Jezior

“…Therefore, it can be inferred that the conditions prevailing in the sediment of these lakes, mainly the low pH value, could be unfavourable to the preservation of pigments. Based on the research conducted on lake bottom sediments in Drawienski National Park and Wel Landscape Park, it was found that bottom sediments characterised by low pH values, despite the high content of organic matter, had low concentrations of pigments [11,12]. It should also be taken into account that Stegwica and Gardzien are shallow lakes, and thus photooxidation and good oxygenation of waters (which accelerate the oxidation processes) could be yet other factors accelerating the degradation of pigments.…”