20210625 20085300 1.0 TRUE Saline Soils This map displays the occurrence of saline soils in the agricultural region of Alberta. A saline soil is a non-alkali (pH less than 8.5 and exchangeable-sodium less than 15%) soil containing soluble salts in great enough quantities that they interfere with the growth of most crop plants. For this map, saline soils were defined as having a soil horizon with an electrical conductivity (EC) of greater than or equal to 4.0 mS/cm within 30 cm of the surface. This is the level of salinity at which crop growth is significantly reduced. Copyright Government of Alberta