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vol. 14, nr. 2 (2009)
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Critical peat soils moisture content as a criterion of irreversible swelling process
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Ryszard Oleszczuk, Tomasz Gnatowski, Tomasz Brandyk
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Department of Environmental Improvement, Warsaw University of Life Sciences – SGGW ul. Nowoursynowska 159, 02-776 Warszawa |
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vol. 14 (2009), nr. 2,
pp. 403-412
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abstract:
The paper presents the application of TDR method for determination of the values of critical soil moisture contents for lowland fen peat soils (sedge, willow, moss and reed). The drainage of peat soils below the values of the critical soil moisture content causes irreversible changes in their volume after rewetting. Due to anisotropy of peat soil shrinkage during drainage process, the critical values of soil moisture contents together with irreversible volume changes (taking into account changes of height and diameter) of soil samples were determined. The presented values of the critical soil moisture content can be used for proper water management during restoration of degraded peat soils.
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keywords:
peat soil, moisture content, critical moisture content
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original in:
Polish
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