长江古时称“江”,历史很久。江的名称,早在春秋时期的吴王铜剑的兵器上就刻有“处江之阳”的铭文;春秋战国时期著作的《左传》有“江汉沮漳、楚之望也”、“江汉之浒”及《禹贡》有“岷山导江,东别为沱……江汉朝宗于海”的记述,这些都是长江最早的记载。六朝以后,又通称“长江”,以代表整个干流,而各段又有很多地方名称,自河源至当曲河汇口一段称沱沱河;至玉树巴塘河口以上,其间称通天河;往下经西藏、四川、云南至宜宾为闻 The ancient name of the Yangtze River “River”, a long history. Jiang’s name, as early as the Spring and Autumn Period of the weapons of the King of Wu sword engraved with “inscription Jiang Yang” inscriptions; Spring and Autumn period of the book “Zuo Zhuan” with “Jianghan Ju Zhang, Chu hope”, “ Jiang Hu of the Hu ”and“ Yugong ”there are“ Minshan River, East do not Tuo ... ... Jiang Han Chao Zong in the sea, ”the account of these are the earliest records of the Yangtze River. After the Six Dynasties, also known as the “Yangtze River”, to represent the entire mainstream, and each section has a lot of place names, from Heyuan to Dangquhehuitou said a section of Tuotuohe; to Yushu Batang estuary, which is called Tongtianhe; to Under Tibet, Sichuan, Yunnan to Yibin smell