Figure 7. Soil solution saturated paste extract (ECsat) versus soil solution SAR of soil material prior to treatment (baseline) and following treatment with various water quality x wetting regimes. Solid lines represent salinity and dispersion risk thresholds previously reported by Ayers and Westcott, 1976; Hansen et al., 1999; Miller and Donahue, 1995; and others. Home Page Questions/Comments: waterquality@montana.edu