The unsaturated hydraulic conductivity was determined in the laboratory for some red and black soils, following water movement into a horizontal column of homogenous soil of uniform packing. A highly significant positive relationship was found between moisture content and hydraulic conductivity values in all the soils studied. Correlation coefficients calculated for the relationships between soil constituents/properties and the change in hydraulic conductivity per unit change in moisture content (regression coefficient between hydraulic conductivity and moisture content) have shown positive relationship to sand and negative relationships to silt, silt + clay, clay, carbonates, aggregates > 0.25 mm and saturated hydraulic conductivity. It is concluded that the unsaturated hydraulic conductivity decreases rapidly with decrease in moisture content and this decrease depends on the soil constituents/properties and differences between soil types are clear. The amount of water stored in a soil profile and the rate of its transmission are of great interest to the Soil Scientists and Agronomists. Water is transmitted through soil both under saturated and unsaturated conditions. Unsaturated flow processes are, in general, complicated and difficult to describe quantitatively. Nevertheless,
Beliehungen mischen WasserleltfiihigLeit und
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