Abstract
Soil-water diffusivity values of a sandy loam soil, measured by Bruce and Klute's and Gardner's methods, were compared with those calculated from the moisture-suction relationship. The measured values of diffusivity were significantly correlated with calculated values of diffusivity. Bruce and Klute's method overestimated diffusivity values at different moisture contents compared with those calculated from the moisture-suction relationship. Diffusivity values measured by Gardner's method and those calculated were almost identical.
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