Die Variabilität des Wasser- und Stoffkreislaufes im Einzugsgebiet des Gardno-Sees (Insel Wollin, Nordwestpolen) in den Jahren 1996 bis 2005


  • Robert Kolander


Kolander, R.: Variability of the water and material cycle in the Lake Gardno Drainage Basin from 1996
to 2005 (Wolin Island, northwestern Poland). – Hercynia N. F. 43 (2010): 189 –201.
The variability of chemical composition in water circulation is described, based on nine years of research
in young glacial forested experimental catchment on the Polish Baltic coast. The research is
summed up in a diagram showing variations in mineralisation and chemical composition of the water
cycle system. There are three specific hydrochemical groups in the coastal area. The first one consists
of three elements which are directly related – precipitation, throughfall and stemflow. This group represents
spheres that are strongly influenced by atmospheric deposition (anthropogenic immissions and
sea aerosols). Because of the low mineralisation and insufficient buffer system (which works only in the
vegetation season) in this group are characteristic seasonal fluctuations and low pH values. The second
group represents the throughflow and determines the processes at the boundary of the atmosphere and
biosphere to the lithosphere. The third group represents the lithosphere and consists of the surface water
and two groundwater levels. Their chemistry is mainly characterised by long-term chemical denudation
processes in sediments rather than the atmospheric delivery. This group has high mineralisation rates and
neutral to alkaline pH values, that means a high buffering capacity for acids. Environmental monitoring
will be continued in the area.
Key words: water cycle system, transformation of precipitation, mineralisation, throughfall, stemflow