Spatial Heterogeneity of Groundwater Hydrochemistry, Quality, and Degradation Mechanisms in Hyperarid Endorheic Watersheds: Insights From the Qaidam Basin on Tibetan Plateau
Phreatic groundwater sustains ecosystems and human livelihoods in hyperarid endorheic watersheds but faces severe threats from widespread nitrogen pollution and extreme salinity. This study systematically investigates water quality suitability, nitrogen health risks, and geochemical degradation mechanisms in the Golmud...