How the Malenscica karst spring, Slovenia is feed - Results by environmental and artificial tracers

摘要

The Malenscica karst spring on Planina karst polje is captured for water supply of Postojna and Pivka communities. By tracing method of environmental tracers such as temperature, conductivity, nitrate, sulphate, calcium, magnesium, o-phosphate levels, turbidity and by artificial tracer Uranin, we studied the dynamics of inflow from separate contributing areas. After first intensive autumn rain the first to drain is the old water from well permeable part followed by squeezing of old water out of less permeable part of aquifer and consecutive rise in rapidly infiltrated rainfall and rise of secondary feeding by washing off the pollution.