Taohuayu to the mouth of the Yellow River is downstream. The basin covers an area of 23,000 square kilometers, accounting for only 3% of the total basin area. The river is 785.6 kilometers long with a drop of 94 meters. The gradient is steep and gentle, with an average value of 1. 1.65438? . The lower reaches of the river cross the North China Plain, and most rivers are constrained by dikes. The total area of the river is 4240 square kilometers. Due to a large amount of sediment deposition, the river channel is raised year by year, and the riverbed is 3-5 meters higher than the back river. Cao Gang, Fengqiu and some other river sections in Henan are 10 meters higher, which are world-famous "suspended rivers" and become the watershed of Huaihe River and Haihe River systems.
The Yellow River is a big river in the north of China, with a total length of about 5,464 kilometers and a drainage area of about 752,443 square kilometers. The fifth longest river in the world and the second longest river in China. ?
Heyuan to Hekou Town, Togtoh County, Inner Mongolia Autonomous Region, is upstream. The rocky gorge in maduo county in the upper reaches of the Yellow River is called Heyuan District, with a river length of 347 1.6km and a drainage area of 428,000 square kilometers, accounting for 53.8% of the total drainage area. .
The Yellow River runs from Hekou Town to Taohuayu, Zhengzhou City, Henan Province. The middle reaches are1206.4km long, with a drainage area of 344,000km2, accounting for 43.3% of the total drainage area, with a drop of 890m and an average gradient of 7.4? .
The middle and upper reaches of the Yellow River are dominated by mountains, while the middle and lower reaches are dominated by plains and hills. Because the middle section of the river flows through the Loess Plateau in China and carries a lot of sediment, it is also called the river with the largest sediment concentration in the world. However, in the history of China, the diversion of the lower Yellow River has brought great influence to human civilization.
Taohuayu to the mouth of the Yellow River is downstream. The basin covers an area of 23,000 square kilometers, accounting for only 3% of the total basin area. The river is 785.6 kilometers long with a drop of 94 meters. The gradient is steep and gentle, with an average value of 1. 1.65438? . The lower reaches of the river cross the North China Plain, and most rivers are constrained by dikes.
The Yellow River basin starts from Bayan Kara in the west, reaches Yinshan Mountain in the north, Qinling Mountain in the south and Bohai Sea in the east. The inland potential in the basin is high in the west and low in the east, and the height difference is very large, forming three steps with high in the west and low in the east.
(Reference:
Baidu Encyclopedia: Yellow River)