Investigating spatial and temporal changes in the quality of underground water sources in the Izadkhash basin

The increase in the world's population, the effects of climate change and lifestyle changes have put increasing pressure on water resources and have led to widespread water stress in many countries. An effective way to reduce and control the continuous degradation of groundwater quality is to understand spatial and temporal changes and identify the main sources of pollution. In this research, using the geostatistical method, temporal and spatial changes in the underground water resources of Izadkhasht basin were investigated in a period of 11 years, considering the factors of water quality change. In this regard, different interpolation methods were compared, and the kriging method with exponential variogram showed better results for water quality parameters. The results of these analyzes showed that the most important factors in the salinity of water and soil resources in the region are destructive formations in the basin. So that in the quality maps of water resources, all parameters showed an increase in three points.