Fig. 1. (a) Soil water characteristic curves calculated for each texture class using Eq. [1] and average hydrologic properties; (b) Relationship of the slope, b, and intercept, a, (solid line) calculated with Eq. [1] and [2] and the average hydrologic properties for each texture class. Using the p and q values of Gregson et al. (1987), the slope (dash line) was calculated for each textural class based on Eq. [1] (Williams and Ahuja, 2003); (c) Results of scaling the soil water characteristic for the 11 texture classes (Williams and Ahuja, 2003).