Hydraulic conductivity, symbolically represented as , is a property of vascular plants, soil or rock, that describes the ease with which water can move through pore spaces or fractures. It depends on the
intrinsic permeability of the material and on the degree of saturation. Saturated hydraulic conductivity, Ksat, describes water movement through saturated media.
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The rate at which water can move through a permeable medium. (i.e. the coefficient of permeability.)
The extent to which a given substance allows water to flow through it, determined by such factors as sorting and grain size and shape.