Hysteresis Effect of Karst Vadose Zone in Spring Kr5, Mt. Kräuterin, Austria

by Dachang Zhang,
Rudolf Pavuza,
Karl Mais,
Hans Fischer,



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

Hysteresis effect is considerable in Spring Kr5, involving a chain of processes of recharge-infiltration-discharge. The lag time of each process to another can be briefly summarized and expressed by a triangular matrix. Flood water with a single source spent about one hour to run through the varlose zone but other 4 hours to present at Spring Kr5. Cation balances gave a possible range of old and new water components in spring discharge. Most flood water discharged within a half day. With the help of statistics and oscillation analysis, the rainfall threshold is determined only 2 mm for this spring.

Subject Headings: Hysteresis | Karst | Vadose zone | Floods | Infiltration | Austria | Europe

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