How wide is the Yellow River?

The widest part of the Yellow River is Dacheji in Changtan County, Henan Province. The banks of the Yellow River are 20 kilometers apart, and the narrowest is only a dozen meters.

The Yellow River originates from Zhaqu at the southern foot of Cha Hasila Mountain in bayan har branch of Qinghai-Tibet Plateau to the north, and from Kaliqu at the northern foot of Bayan Kara branch to the south, which is in the shape of "Ji", and flows through Qinghai, Sichuan, Gansu, Ningxia, Inner Mongolia, Shaanxi, Shanxi, Henan and Shandong provinces (autonomous regions) from west to east, and finally flows into Bohai Sea.

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.

Historical changes of extended data

The gestation, birth and development of the Yellow River are controlled by geological processes in geological history. The tectonic movements caused by crustal changes are external forces, and the erosion, transportation and accumulation generated by itself under hydrogeological conditions are internal forces.

In the historical process of becoming a river, it keeps moving forward and keeps pace with the times. Soil erosion in the Loess Plateau and sediment deposition in the lower reaches of the Yellow River began in prehistoric geological times, and have been increasingly influenced by human activities since then.

According to various studies, the ancient Yellow River has three stages of development, and the early Pleistocene from Tertiary to Quaternary is the gestation period of the ancient Yellow River. The middle Pleistocene in Quaternary (110.5 million years ago) was the birth period of the ancient Yellow River. In the late Pleistocene (654.38+ 10,000 years ago ~ 654.38+ 10,000 years ago), the Yellow River formed a marine water system.

Baidu Encyclopedia-Yellow River