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Right arrow Hydraulic Conductivity/Relative Permeability
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Joint Distributions of the Unsaturated Soil Hydraulic Parameters and their Effect on Other Variates

Gerrit H. de Rooija,*, Roy T. A. Kasteelb, Andreas Papritzc and Hannes Flühlerc

a Wageningen Univ., Dep. Environ. Sci., Sub-Dep. Water Resources, Soil Physics, Agrohydrology, and Groundwater Management Group, Nieuwe Kanaal 11, 6709 PA The Netherlands
b Forschungszentrum Jülich GmbH, Institute of Chemistry and Dynamics of the Geosphere IV, Agrosphere, 52425 Jülich, Germany
c Institute of Terrestrial Ecology, Soil Physics, Federal Institute of Technology Zürich, Grabenstraße 3, 8952 Schlieren, Switzerland


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  		Fig. 1. Soil water retention data for the plough layer and the subsoil.

 


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  		Fig. 2. Unsaturated hydraulic conductivity data for the plough layer and the subsoil.

 



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  		Fig. 3. Histograms of the fitted van Genuchten (1980) parameters. For the plough layer, {theta}r was fitted at zero for all samples.

 


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  		Fig. 4. Analytically derived pdfs of K(h) of the plough layer and the subsoil. Numbers indicate pressure heads in centimeters.

 


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  		Fig. 5. Analytically derived pdfs of {theta}(h) of the plough layer and the subsoil. Numbers indicate pressure heads in centimeters.

 


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  		Fig. 6. Analytically derived pdfs of {theta}avail of the plough layer and the subsoil.

 




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