Lakes Supplied by Springs : Selected Examples

Abstract

The article discusses the influence of springs upon the physical properties of two postglacial lakes located in the Central European Lowland (lakes Kielskie and Wapienne), and one karst Lake Okońskie located in the Volhynia Polesiye (the Ukraine). The impact of the springs upon the postglacial lakes was restrained most frequently to a dozen or so meters, and was different during winters and summers. The author found big diversity of surface water layer temperatures (approx. 7-9°C in the section of merely 6 meters), and of water electrolytic conductivity (to over 40 μS cm-1). Water reaction was significantly less diversified. On the other hand, Lake Okońskie is entirely influenced by waters coming out from the springs. There is the so-called crenogenic mixis, so typical of limnocrene springs.