Correlation Analysis on Correlation between Soil Salinity and Groundwater in Ili River Valley

Based on monitoring and sample analysis of soil salinity and groundwater conditions in Ili River Valley in 2009,a correlative analysis was made on the depth,salinity,EC,pH,main ions of groundwater and soil salinity in March,June,September and November.Results showed that the average salinity of soil in study area was 1.37 g kg-1,belonging to slightly saline soil.The average salinity of groundwater was 2.50 g L-1,belonging to slightly saline water.Soil salinity has stronger correlation with the depth,salinity,EC,SO42-,Cl-,Mg2+ and Na+ of groundwater.Soil salinity has less correlation with pH,K+ and Ca2+ of groundwater.Irrigation has less influence on the change of pH,salinity,EC,Mg2+ and Cl-concentrations of groundwater,and has much influence on the change of the groundwater depth,Na+,SO42-,K+,Ca2+ concentrations of groundwater.Mg2+,Na+ and Cl-concentrations of groundwater should be taken more attention for controlling and managing secondary soil salinization in the area.