engleski

Mean residence time of water from springs of the Plitvice Lakes and Una River area

Within the FP5 project ICA2-CT-2002-10009 several tracers from springs that feed the Plitvice Lakes (Croatia) and springs in Una River valley (Bosnia and Herzegovina), as well as stable isotopes and tritium activity of precipitation from the Plitvice Lakes area were measured in the period 2003-2005. The aim of this work is to model the Mean Residence Time (MRT) by comparative measurements of concentrations of stable isotopes (2H, 18O), helium isotopes (3He/4He), chlorofluorocarbons (CFC-11, CFC-12., CFC-113), SF6 and hydrochemical analyses. The complexity of the karst system required a multi-tracer approach, since one environmental trace substance alone leaves too much ambiguity in interpretation.

MRT; tritium; 2H; 18O; Plitvice lakes; Una River; CFC

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