The Yangtze River originates in the southwest of the winter peak of Tanggula Mountain on the Qinghai-Tibet Plateau, and its main stream flows through Qinghai, Tibet, Sichuan, Yunnan, Chongqing, Hubei, Hunan, Jiangxi, Anhui, Jiangsu, Shanghai1/provinces (autonomous regions and municipalities directly under the Central Government) and joins the East China Sea at Chongming Island in Shanghai.
The tributaries extend to Guizhou, Gansu, Shaanxi, Henan, Guangxi, Guangdong, Zhejiang and Fujian provinces. The Yangtze River basin covers an area of 6.5438+0.8 million square kilometers, and its main stream is 6,397 kilometers long, ranking third in the world after the Nile and Amazon rivers.
The Yangtze River Basin refers to the vast area where the main stream and tributaries of the Yangtze River flow, spanning the three major economic zones in eastern, central and western China, covering 19 provinces, municipalities and autonomous regions. It is the third great basin in the world, with a total area of 1.8 million square kilometers, accounting for 18.8% of China's land area, and is rich in natural resources.
The total length of the Yangtze River is customarily called 6397 kilometers. Yichang, the main stream of the Yangtze River, is upstream, with a total length of 4,504 kilometers and a drainage area of 6,543.8+0,000 square kilometers, of which Zhimenda to Yibin is called Jinsha River Basin, with a total length of 3,464 kilometers.
Yibin-Yichang reach is called Chuanjiang, with a length of 1040 km. Yichang to Hukou is the middle reaches, with a total length of 955 kilometers and a drainage area of 680,000 square kilometers. Hukou to the Yangtze River estuary is the downstream, with a length of 938 kilometers and a drainage area of 6,543,800 square kilometers.
Extended information The Yangtze River originates from the "roof of the world"-the southwest side of the winter peak of Tanggula Mountain in Qinghai-Tibet Plateau, and is the mother river of the Chinese nation.
The main stream flows through Qinghai, Tibet, Sichuan, Yunnan, Chongqing, Hubei, Hunan, Jiangxi, Anhui, Jiangsu, Shanghai1/provinces, autonomous regions and municipalities directly under the Central Government, and flows into the East China Sea east of Chongming Island, with a total length of 6397km, which is more than 900 km longer than that of the Yellow River (5464km). The length of major rivers in the world is second only to that of the Yellow River.
Among the world's major river flows, the Yangtze River also ranks third in the world, second only to the Amazon River and the Congo River. However, the Nile River basin spans nine African countries, the Amazon River basin spans seven South American countries, and the Congo River basin spans seven African countries. The Yangtze River is unique to China.
The main stream of the Yangtze River runs through central China from west to east. Hundreds of tributaries converge north and south, extending to Qinghai, Sichuan, Tibet, Chongqing, Hubei, Hunan, Jiangxi, Anhui, Jiangsu, Shanghai and other provinces and regions. The drainage area is 6.5438+0.8 million square kilometers, accounting for about 20% of the total land area of China. Most of the water in the Huaihe River also flows into the Yangtze River through the Grand Canal.
Above Yichang, the main stream of the Yangtze River, is upstream, with a length of 4,504 kilometers and a drainage area of 6,543.8+0,000 square kilometers, of which the branch from Zhimen to Yibin is called Jinsha River, with a length of 3,464 kilometers. Yibin-Yichang section, commonly known as Chuanjiang, is 1040 km long.
Yichang to Hukou is the middle reaches, with a total length of 955 kilometers and a drainage area of 680,000 square kilometers. Hukou to the sea mouth is downstream, 938 kilometers long, with a drainage area of 6,543,800 square kilometers.
The Yangtze River is the most abundant river in China, with a total water resource of 961600 million cubic meters, accounting for about 36% of the total river runoff in China and 20 times that of the Yellow River. The Amazon River and the Congo River (Zaire River) are second only to the equatorial rainforest, ranking third in the world.
The parana river-La Plata River in South America and the Mississippi River in North America, which are similar in latitude to the Yangtze River basin, have a basin area larger than that of the Yangtze River, but their water consumption is far less than that of the Yangtze River. The former accounts for about 70% of the Yangtze River, while the latter accounts for about 60% of the Yangtze River.
The Yangtze river basin is located between 90 33 ′ ~122 25 ′ east longitude and 24 30 ′ ~ 35 45 ′ north latitude.
From Heyuan to Hekou, the whole terrain is high in the west and low in the east, forming three huge steps. The first level consists of the plateau and Hengduan Mountain in southern Qinghai and western Sichuan, with an altitude of 3,500-5,000 meters.
The second step is the Qinba Mountain area, Sichuan Basin and Hubei-Guizhou Mountain area of Yunnan-Guizhou Plateau, with an elevation of 500-2,000 m generally .. The third step is composed of Huaiyang Mountain, Jiangnan hills and plains in the middle and lower reaches of the Yangtze River, with an elevation of less than 500 m generally .. There are various types of landforms in the basin, including mountains, hills, basins, plateaus and plains.
References:
Yangtze river-Baidu encyclopedia