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vol. 2, nr. 4 (2003)
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Result stabilization problem when determining repeatability of the oxygen flux measurements in soils
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Andrzej Bieganowski
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Institute of Agrophysics, Polish Academy of Sciences, ul. Doświadczalna 4, 20-290 Lublin |
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vol. 2 (2003), nr. 4,
pp. 691-706
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abstract:
The OFD (oxygen flux density) results obtained for 26 soil samples have been presented. The soils studied were representative samples for the South-East part of Poland (brown soil, chernozem, black soil, alluvial soil, muck soil, grey-brown podzolic soil, and rendzina). The soils investigated were saturated or nearly saturated soil solutions. Deposition of substances difficult to identify on the cathode surface during measurement taking was observed. The above substances can mechanically block the electrode surface and undergo oxidation a under low cathode potential in the following replications. Resignation of the replication procedure after electrode installation in the soil should be considered. An increase of the number single measurements followed by the electrodes reinstallation in different site of the same soil should be carried out instead.
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keywords:
oxygen flux measurement in the soil, Oxygen Flux Density (OFD), Oxygen Diffusion Rate (ODR), soil aeration
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original in:
Polish
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