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vol. 4, nr. 1 (2004)
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Comparison of effluent and TDR breakthrough curves Of electrical conductivity in a laboratory column experiment
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Rita Kremper1, Kálmán Rajkai2
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1 Agricultural Centrum, University of Debrecen, P.O.B. 36, H-4032 Debrecen, Hungary |
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2 Research Institute for Soil Science and Agricultural Chemistry, P.O.B. 35, H-1525 Budapest, Hungary |
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vol. 4 (2004), nr. 1,
pp. 69-75
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abstract:
Steady state downward flux was carried out in laboratory for 2 soil columns containing sand and aggregated loam. The bulk elekrical condictivity (EC) was measured at the bottom of the column by horizontally installed TDR probes. The bulk EC data were evaluated by continuous flow and convolution method and they were converted to relative concentrations, as were the effluent EC data. For sand, the relative concentrations obtained from the effluent were similar to those for TDR, while for aggregated loam there were significant discrepancies. The results were explained by the different pore distribution of the soils.
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keywords:
TDR (Time Domain Reflectometry), BTC (Breakthrough Curve), soil column, effluent
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original in:
Polish
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