Fig. 6. Examples of estimation of the water retention curve using shrinkage properties. Comparison between experimental data (solid line), direct fitting of the exponential model equations (dashed line), direct fitting of van Genuchten equation (gray dashed line), and estimation with the use of (i) macroporosity limit (ML) or maximum swelling (MS) water content fitted on the shrinkage curve, (ii) the slopes of the linear parts, and (iii) recorded suction at MS or ML (see prediction methods 2 and 3, Table 3, for the equations used). C-17 and C-14 are Cambisols, V-46 and V-51 are Vertisols, F-9 and F-42 are Fluvisols.