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vol. 9, nr. 3 (2007)
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Effect of freezing on air properties of compacted Mollic Leptosol
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Maja Bryk
, Beata Kołodziej
, Tomasz Serzysko
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Institute of Soil Science and Environmental Management, Agricultural University ul. Leszczyńskiego 7, 20-069 Lublin
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vol. 9 (2007), nr. 3,
pp. 571-582
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abstract:
The influence of freezing processes on the air properties (porosity, air capacity, air permeability) of a compacted Mollic Leptosol derived from chalk (Sielec, Pagóry Chełmskie, cultivated field) was investigated. Soil samples for the experiment were taken from the seasoned superficial soil layer of 0-10 cm. The freezing processes caused an alteration in the differential porosity of the studied soil, related to its compaction. The strongest growth of air diffusivity - causing the greatest improvement of soil pore permeability - was observed for strongly compacted soil after 3 cycles of freezing and thawing. There was no apparent correlation between the number of freezing-thawing cycles and the intensity of changes detected in the measured properties, caused by freezing.
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keywords:
Mollic Leptosol, air properties, compaction, freezing
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original in:
Polish
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