By leaching small soil column simulation experiments with salt water,the infiltration characteristics and desalination principle of a sandy loam coastal saline soil,and water saving potential with salt water were studied.The results indicated that,the salt water had a light negative effect on soil infiltration characteristics,but infiltration ability no longer decreased when mineralization degree of salt water was above 15.61 g/L.The change of effluent's mineralization degree could be characterized by three...