ABSTRACT
Since August 1995 three observation stations of infiltration water have been in operation under different cultivation types in a small cristalline catchment area S of the Alps. In May 1996 a combined tracing and irrigation experiment has been carried out using water from the Northern Calcareous Alps. This water is characterized by a different chemistry comparing to the natural background in the cristalline catchment and different values of the stable isotope 18O. As artifical tracers Lithium and Bromide were used. The first results of the tracing experiment indicate important differences between the landuse systems forest, pasture and arable land concerning water movement and solute transport and allow the comparison of the transport behaviour of the natural and artificial tracers used.
