Water and Salt Transporting Feature of Soil with Different Degree Mineralization of Water Leaching Severe Saline-alkali Soil
Abstract：An indoor soil column experiment was carried out to investigate the water and salt transporting characteristics of severe saline-alkali soil,which was leached with different salinity of water.The results indicated that the soil infiltration rate of mincro-saline and saline water was obviously higher than that of fresh water.The soil salinity desended significantly after irrigation and the soil desalinization effect by leaching with fresh and mincro-saline water was better.After irrigation,soil pH and the concentrations of CO3^2- and HCO-3 increased in the three treatments soil,while the concentrations of Na^＋,Cl^-,SO4^2-,K^＋,Mg^2＋ and Ca^2＋ decreased,soil pH of leached with fresh water increased greatly.Among the three degree mineralization of water,the mincro-saline water has the best comprehensive effect of leaching severe saline-alkali soil.Therefore,replacements of fresh water with mincro-saline water shoud have better leaching effects.
Keywords：severe saline-alkali soilwater and salt transportmincro-saline waterleachingdesalting
Publication Date：2011-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)