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Impact of Pedogenetic Processes on Pore System Development and Consequently on Soil Hydraulic Properties
Kodešová, R. ; Kodeš, V. ; Žigová, Anna
Soil micromorphological properties were studied on soil thin sections to define configuration of soil porous system that is reflected in a shape of soil hydraulic properties. The micromorphological study of soil porous systems discovered multimodality of pore-size distributions and hierarchical pore configuration. Some pore systems were affected by clay coatings. The soil water retention curves also frequently display multimodality. The single-porosity and dual-permeability models in HYDRUS-1D (Šimůnek et al., 2003, 2005) were applied for description of soil hydraulic properties and soil water flow. Results showed a very important impact of multimodality of soil porous systems and effect of clay coatings on water flow process in soil.

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