Experimental study on salt and water movement affected by mineralization degree of infiltration water

Reasonable development and utilization of salt water and saline water resources have become a heat issue in the world recently. In order to study the effected of mineralization degree of saline water, soil moisture content and soil initial conditions on water and salt movement, the experiment of brackish water infiltration with earth pillar were conducted in doors. Impact of the salinity of the infiltration water on the process of infiltration was analyzed, the mathematical model between infiltration water mineralization degree and soil salt content was established, and the soil salt movement law in soil profiles were summarized. The results showed that ability of soil infiltration raised with the increasing of water mineralization degree. As mineralization degree is ranged from 1～5 g/L, the extent of accumulated salt increases along with increased mineralization degree of infiltration water. The surface soil water content was close with different mineralization degree levels water, which approached saturated water content.