Groundwater Overexploitation and Water Quality Degradation in a Typical Inland River Basin of the Agro‐Pastoral Ecotone in Northern China

concentrations are primarily associated with strong evaporation processes. These findings reveal critical risks associated with continued groundwater overextraction and quality degradation and emphasize the urgent need for integrated groundwater management strategies to ensure long-term water security and ecosystem resilience in semiarid endorheic basins.