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Article: Anion and cation leaching through large undisturbed soil cores under different flow regimes. 1. Experimental results.
- Article from:
- Australian Journal of Soil Research
- Article date:
- July 1, 1999
- Author:
CopyrightCOPYRIGHT 1999 CSIRO Publishing. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract
The movement of anions and cations under different unsaturated flow regimes was studied in 2 large undisturbed cores from a soil under pasture. Sequential leaching of calcium sulfate (Ca[SO.sub.4]) and potassium bromide (KBr) solutions was carried out at water fluxes which ranged from a normal 5-20 mm/h rate in one core (the slow flow core), to unusually high values up to 350 mm/h in the other (the fast flow core). The objective was to examine the leaching behaviour of the applied cations and anions under these contrasting flow conditions, and determine the relative influence of soil physical and chemical processes in governing ion movement. A better ...
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