Fig. 2. Retention measurements, optimized soil water retention curves, and associated pore size distributions. VG = van Genuchten (1980), MVG = modified van Genuchten (Vogel and Cislerova 1988), and BVG = bimodal van Genuchten (Durner 1994). The circles in 25 and 45 cm of VG highlight the third small pore size maximum.