Relationship between Fluctuations in the Water Table and Aquifer Salinization (Case Study: Aquifer Aspas-Fars Province)

Ground water has been important water source within all centuries. Due to this important, necessity is aware of how spatial and temporal changes in these variables that in many areas is important. Exploitation of the Aquifer Aspas and also continuous drought in recent years has caused a dramatic reduction in groundwater levels. In the past, the level of groundwater at a depth of 7-5 meters from ground level, but already because of excessive use numerous wells has reached to a depth of 60-50 meters. As a result, management factors are important in this the plains. The aim of this study, has been investigated the relationship between changes in the water table aquifer and salinity during the period of (2002-2010). For this purpose, were used the meteorological data (the average annual precipitation for the precipitation process), Groundwater monthly quality data (including electrical conductivity to investigation salinity), quantitative data Groundwater (includes monthly Groundwater level of observation wells of plains to show status of groundwater fluctuations and the unit hydrograph the plains). unit hydrographs shows that during the period of (2002-2010), groundwater level declined and the average of drop has been 0.7 meters per year, On the other hand can be seen an inverse relationship between the water table and salinity. Comparing of changes in electrical conductivity and groundwater level in the aquifer showed that Salinity is higher in areas where the water table is lower.