The target to conduct the combined apply of river and underground water in Ejin oasis is to reduce the waste of water resources,resume the ecology water level and protect the oasis.

• 对日趋缺水的额济纳绿洲,进行河水与地下水进行联合运用的目的是:减少水资源浪费,恢复生态水位,保护绿洲。