Relationship between van Genuchten’s parameters of the retention curve equation and physical properties of soil solid phase
 
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Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, P.O. Box 201, 20-290 Lublin 27, Poland
 
Int. Agrophys. 2006, 20(2): 153–159
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ABSTRACT
Van Genuchten parameters were determined for 24 Phaeozems and 54 Gleysols samples taken from surface, subsurface and subsoil horizons. No evident dependences between van Genuchten’s parameters and the physical properties of Phaeozems soil samples were observed, which was due to a similar genesis and similar properties of soil solid phase. Analysis of Gleysols, on the other hand, revealed dependences between the physical soil properties and van Genuchten’s parameters resulting from different geneses of these soils and, hence, different physical properties of soil solid phase. The obtained results should be considered as preliminary and further studies on a larger number of soil samples are planned.
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