Phreatic groundwater hydrochemistry is important for sustainable water utilization and ecological stability in arid regions. Based on the test data from collected samples, this study explored phreatic recharge, hydrochemical evolution, quality of Sugan Lake Basin using hydrogeochemical, isotopic, multivariate statistical analyses. The stable isotopic results showed that alluvial fan, plain, wet...

in many arid and semi-arid regions, groundwater resources exploitation is inevitable to meet water demands. this paper aims to study the response of phreatic and confined aquifers in a multilayer groundwater system to climate variability. to achieve this aim, gorgan plain multilayer aquifer has been investigated using different meteorological and hydrological drought indices (di, pni, spi and g...