![]() HANUMANTHA RAO BPh. D.
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DETERMINATION OF HYDRAULIC CONDUCTIVITY OF UNSATURATED SOILSVarious in-situ and laboratory techniques, empirical relationships and Pedo-transfer functions (PTFs), have been developed by earlier researchers to establish soil-water characteristic curve (SWCC). However, most of these techniques are elaborate, cumbersome, time consuming, employ expensive experimental setups and resort to destructive and invasive methods of determining soil moisture content. Also, though the SWCC so obtained can be employed for estimating hydraulic conductivity of unsaturated soils, which is an indirect method, and they are soil specific. This calls for development of techniques that can be employed for direct determination of hydraulic conductivity of unsaturated soils, under laboratory and field conditions. |