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Hysteresis effect of water retention curves for different aggregates of mineral [Haplic Luvisol] and organic [Gleyic Phaeozem] soils

100%

Witkowska-Walczak B.

Polish Journal of Soil Science

2003

tom 36

nr 1

The results of studies on the hysteresis effect of water retention curves of mineral and organic soils showed that Gleyic Phaeozem aggregates are characterized with a greater ability to retain water than are Haplic Luvisol aggregates. The highest values of moisture differences were noticed for 0.5-1 mm Gleyic Phaeozem aggregates at low soil water potential. The effect of hysteresis was small for aggregates of 3-5 and 5-10 mm in the whole range of the soil water potential and for pF higher than 1 for aggregates bigger than 0.5 mm. The maximum surfaces of the hysteresis loop were noticed for 0.5-1 and 0.25-0.5 mm aggregates of Gleyic Phaeozem and these were about 2.5 times higher than those for the aggregates of Haplic Luvisol.

Ograniczanie wyników

1 Polish Journal of Soil Science

1 Witkowska-Walczak B.

1 2003

Wyniki wyszukiwania

Hysteresis effect of water retention curves for different aggregates of mineral [Haplic Luvisol] and organic [Gleyic Phaeozem] soils