A THEORETICAL APPROACH TO THE AREAL DISTRIBUTION OF SOIL SURFACE CONDUCTIVITY

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Abstract
It is often assumed that the distribution of static soil properties is normal and that of dynamic properties (involving flow), for the same pore structure, is lognormal. We examined this assumption for a particular model in which the hydraulic conductivity is derivable from the distribution of pore sizes, numbers, and locations, using Poiseuille''s law. The resulting distribution of flow is not exactly lognormal, but is approximately so under certain conditions. A difficulty in interpreting soil data at the high-intensity limit (intensity of pores per unit area) is pointed out.

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