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), which is 6380 km long, is the longest river in Asia and the third-longest in the world.The river is the longest in the world to flow entirely within one country.It drains one-fifth of the land area of the People's Republic of China (PRC) and its river basin is home to nearly one-third of the country's population.; literally: "Long River").The Yangtze plays a large role in the history, culture and economy of China.The prosperous Yangtze River Delta generates as much as 20% of the PRC's GDP.The Yangtze River flows through a wide array of ecosystems and is habitat to several endemic and endangered species including the Chinese alligator, the finless porpoise, the Chinese paddlefish, the (possibly extinct) Yangtze River dolphin or baiji, and the Yangtze sturgeon.



Some sections of the river are now protected as nature reserves.A stretch of the upstream Yangtze flowing through deep gorges in western Yunnan is part of the Three Parallel Rivers of Yunnan Protected Areas, a UNESCO World Heritage Site.In mid-2014 the Chinese government announced it was building a multi-tier transport network, comprising railways, roads and airports, to create a new economic belt alongside the river."Yangtze" was actually the name of Chang Jiang for the lower part from Nanjing to the river mouth at Shanghai.

However, due to the fact that Christian missionaries carried out their activities mainly in this area and were familiar with the name of this part of Chang Jiang, "Yangtze river" was used to refer to the whole Chang Jiang in the English language.

In modern Chinese, Yangtze is still used to refer to the lower part of Chang Jiang from Nanjing to the river mouth. Chang Jiang (长江/長江) is the modern Chinese name for the lower 2,884 km (1,792 mi) of the Yangtze from its confluence with the Min River at Yibin in Sichuan Province to the river mouth at Shanghai.