江河源头和水源涵养区生态保护 ecological protection of river sources and water source conservation areas

河有源泉水才深 a river runs deep because of its source.

傍河水源地 riverside source field ; riverside well field

河源水平 headwater level

黄河包头段水源污染 the Yellow River in Baotou water source pollution

黄河水源地保护 yellow river source water protection

黄河流域水资源 yellow river basin water resources ; he yellow river basin water

河流水能资源 waterpower resources of river ; hydropower resources of river

河流水资源 river water resources