Effects of Additional Soil Amount on Saturated Hydraulic Conductivity and Salts Leaching in Sodic Soil
Bases on simulation experiments in laboratory, the effects of the amount of additional soil on saturated hydraulic conductivity ( K10 ) of sodic soil, electrical conductivity ( EC ) and pH of leachates were investigated, and relationships between K10 and EC of leachates,K10 and pH of leachates were established.Results showed that K10 increases with the increments of additional soil amounts,and the relationships between them follow linear functions significantly; values of EC and pH of leachates decrease with the increases of additional soil amount; EC and pH values of leachates decrease with the increases of K10, the relationships between EC and additional soil amount and between EC and additional soil amount follow linear function and power function, respectively.