n.上游(河源)

Maqu Wetland is the crucial headwater of the Yellow River, whose protection counts for the sustainable regional development and safety of the whole Yellow River. 瑪曲濕地作為黃河上游的重要水源地，它的發(fā)展不僅關乎到本地區(qū)經濟的可持續(xù)發(fā)展，更事關黃河水資源的安全，關系到整個國家的生態(tài)和經濟安全。

n.河源上游