Abstract
A method of calculating both the water characteristics and hydraulic conductivity of a short soil core at high water contents from a single transient flow experiment is described and evaluated. The method is based on measurements of cumulative inflow or outflow of the water entering or leaving the core through a high-resistance porous plate on one end, and measurements of soil-water suction at the other end. The results indicate possibilities of good determinations in the soil-water region between 0 and 100 or 150 cm H2O suctions. Higher porous plate resistances gave better calculations over a wider range of water contents than did the low resistances. The higher hydraulic conductivity values for an Inceptisol from Hawaii and the tendency of these values to decrease more sharply with decreases of water content than corresponding values for the Yolo soil were confirmed by this method.
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