Do you know the Mekong River?

I know, but I don't know much about it. After seeing the problem, I quickly Baidu it.

The Mekong River originates from the northeast slope of Tanggula Mountain in China, and is called Lan-ts'ang Chiang in China. After it flows into Indo-China Peninsula, it is called Mekong River. The Mekong River, with a total length of 4,909 kilometers, is the most important transnational water system in Asia and the seventh largest river in the world. The main source is Zhaqu, which originated in Zaduo County, Yushu Tibetan Autonomous Prefecture, Qinghai Province, China. It flows through China, Laos, Myanmar, Thailand, Cambodia and Vietnam, and flows into the South China Sea in Ho Chi Minh City, Vietnam. Except China and Myanmar, this basin is a member of Mekong River Commission.

The upper reaches of the Mekong River are the Lancang River in China and the lower reaches are in Viet Nam. Because there are nine estuaries in Vietnam flowing out of the South China Sea, Vietnam calls it Jiulong River? u Long Giang).

Among them, 3 1km from Nan 'an estuary to Nanla estuary is the boundary river between China and Myanmar; Laos, the main stream of Mekong River in Laos is 777.4 kilometers; The border between Laos and Myanmar is 234 kilometers; The border river between Laos and Thailand is 976.3 kilometers; Cambodia 501.7 km; Vietnam Mekong Delta is 229.8 kilometers.

Because the discharge of Mekong River changes greatly in dry season and rainy season, there are many rapids and waterfalls in the main stream, and the shipping capacity of Mekong River is poor. At present, the lower reaches of the Mekong River are only 550 kilometers navigable. (from Baidu)