Fig. 3. Plot of observed _d vs. calculated SA^0.52_vol (with unknown proportionality constant A). The FLTF, VOC, and ITS soils are each denoted by an oval. The straight line fit through the origin is an approximate minimum value of _d for a given SA^0.52_vol, and is, on account of its lack of a y-intercept, compatible with the Moldrup relation, Eq. [11], for the threshold moisture content for solute diffusion.

Return to article