澜沧江是中国纵贯横断山区最长的南北向河流。中国水电重点开发河流。总长2354千米。“澜沧”,傣语意为百万头大象。上源有2:东源(正源)扎曲,西源昂曲。都出自青海境内唐古拉山脉的岗果日山,2源由西北流向东南,至昌都汇流后始称澜沧江,经西藏自治区,于德钦县布依进入云南,流于南北走向的横断山间,流经迪庆、怒江、大理、保山、临沧、思茅、西双版纳7个地州,于南腊河口汇合出境后称湄公河。省境内干 The Lancang River is the longest north-south river running through the Hengduan Mountains in China. China’s hydropower development of key rivers. The total length of 2354 km. “Lancang”, Dai language means millions of elephants. On the source 2: Eastern (positive source) Zhaqu, Xianyang Qu song. Both originate from Ganggousi Mountain in the Tanggula Mountains in Qinghai Province. The two sources flow from the northwest to the southeast. After the convergence to the Changdu, the Lancang River called the Lancang River, passing through the Tibetan Autonomous Region and entering the Yunnan Province through Buyi in Deqin County. Diqing, Nujiang, Dali, Baoshan, Lincang, Simao, Xishuangbanna seven prefectures, in the mouth of the South River after the merger of the Mekong called convergence. Provincial dry