تحلیل روند ماهانه تراز آب زیرزمینی دشت ایزدخواست

Iran with an average annual rainfall of 280 mm, is one of the arid and semi-arid regions of the world. The average annual rainfall is less than 130 mm in 65% of it. Therefore, studying the trend of precipitation changes and consequently changes in groundwater level level can be very important in different aspects. Therefore, in this research, we try to determine the trend of changes in the groundwater level of the Izad-e Khast plain during (2008-2018) using the statistics of 10 piezometric wells in the region and the Mann-Kendall method and the slope of the age line.
The results showed that the slope values of the age line were estimated positive in most months, but these values were not significant according to Mann-Kendall test and only the values of December and annual values of trend level were estimated positive. Based on these results, it can be said that the increase in groundwater level relative to the ground level indicates a decrease in the amount of water reservoirs in this basin, which indicates the indiscriminate harvesting of groundwater resources in agriculture and decreasing rainfall in the past few years.