Title:
Characteristics of Percolation Through the Karst Vadose Zone
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Description

The study of the vadose zone has been based on own continuous long-term measurements and analyses of precipitation on the surface and of several representative trickles in the vadose zone of Postojna Cave over consecutive hydrological years. It offers an explanation of the dynamics of the percolation of water and simultaneous transfer of contaminants and their impact on the dissolution of carbonate rock in the vadose zone. The research contributes to the understanding of the role of the vadose zone in the karst aquifer. The emphasis is placed on a multi-parameter approach based on the simultaneous use of a number of different methods, not only tracing natural tracers (such as the continuos measurement of discharge, temperature, electrical conductivity, isotopic composition of oxigen, content of carbonates, calcium, magnesium, chlorides, nitrates, sulfates and o-phosphates, electrical resistivity imaging) but also tests with artificial tracers using different methods of injection. The research contributes to the understanding of the role of the vadose zone in the karst aquifers and is directly applicable in planning the long-term protection of the quality of karst springs.

Table of content

1 INTRODUCTION

2 STUDY AREA

3 RESEARCH METHODOLOGY

4 INFLUENCE OF PRECIPITATION ON HYDROGRAPHS OF TRICKLES

5 OSCILLATION OF TEMPERATURE AND ELECTRICAL CONDUCTIVITY

6 ISOTOPIC CHARACTERISTICS (δ18O) OF PRECIPITATION AND TRICKLES

7 TRANSFER OF SUBSTANCES THROUGH THE VADOSE ZONE

8 TRACER TESTS WITH FLUORESCENT TRACERS

9 EXPERIMENT TO ESTABLISH THE DYNAMICS OF THE RECHARGING AND DISCHARGING OF THE VADOSE ZONE USING ELECTRICAL TOMOGRAPHY

10 INFLUENCE OF INCREASED CONCENTRATIONS OF CONTAMINANTS ON PROCESS OF LIMESTONE DISSOLUTION

11 THE ROLE OF THE VADOSE ZONE IN AN AQUIFER – EXAMPLE OF KORENTAN SPRING

12 COMPARISON OF PERCOLATION THROUGH THE VADOSE ZONE AT VARIOUS LOCATIONS

13 CONCLUSIONS

14 REFERENCES

15 ZNAČILNOSTI PRETAKANJA SKOZI VADOZNO CONO KRASA (POVZETEK)

Publishing House

Založba ZRC

ISBN

978-961-254-225-2

Specifications

hardback • 20,5 × 27,5 cm • 168 pages

Price

not for sale

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