PORE-SIZE, PARTICLE-SIZE, AGGREGATE SIZE, AND WATER-RETENTION

A method of compared distribution curves was used to relate distributions of pore size, particle size, aggregate size, and pore size from water retention. Seven surface soils varying in texture and aggregation were tested. After normalization to 100% volume, the pore-, particle-, and aggregate-size distribution, as well as water-retention curves were each fitted to a linearly transformed logistic function to evaluate their interrelations using R(m/n), a coefficient for the ratio of the diameters of component m to component n. -from Authors