Hanjiang River, with a total length of 65,438+0,577 km, in which the main stream of Shaanxi is 657 km long and the main stream of Hubei is 920 km long, with a total drop of 65,438+0,964 m. ..
Extended data
Hanjiang River, also known as Hanshui River and Hanjiang River, is a tributary of the Yangtze River. According to modern hydrology, there are three sources: Shui Yang in the Central Plains, Qushui in Beiyuan and Daiyu River in Nanyuan, all of which are located in ningqiang county, Shaanxi Province at the southern foot of Qinling Mountains. When it flows through Mianxian (now Mianxian) and flows eastward to Hanzhong, it is called Hanshui River. The section from Ankang to Danjiangkou was called Canglang Water in ancient times, and Xiangyang was nicknamed Xiangjiang River and Xiangshui below.
Hanjiang River is a tributary of the Yangtze River and occupies an important position in history. Often juxtaposed with the Yangtze River, Huaihe River and Yellow River, they are collectively called "Jianghuai Hehan".
The Hanjiang River flows through Shaanxi and Hubei provinces and joins the Yangtze River at Longwang Temple in Hankou, Wuhan. The river length 1.577 km, and the basin area 1.959 years ago was 1.743 million square km, ranking first among all the basins in the Yangtze River system. After 1959, it was reduced to159,000 square kilometers.
The upper reaches of the Hanjiang River are 956 kilometers long with a drainage area of 95,220 square kilometers. The main stream runs east-west, between Qinling Mountain and Daba Mountain. Canyon basins alternate along the way. The riverbed is mostly composed of pebbles, gravels and bedrock, and the river slope is large.
After the main stream enters Hubei Province from Yunxi, the Qinling remnant vein is in the north and Wudang Mountain is in the south. The bending coefficient of the reach is 1.78, and the average ratio is reduced to 0.6‰. It belongs to a meandering river in mountainous area, with fast-flowing water and rich hydraulic resources, and its reserves account for about 6800 of the theoretical storage capacity of the main stream. Moreover, it has good dam-building conditions and is an important section for developing the hydraulic resources of the Han River.
The main stream is above Danjiangkou, Hubei, and the valley is narrow, about 925km long; Danjiangkou to Zhongxiang is the middle reaches, with a wide valley and many beaches, about 270km long; Zhongxiang to Hankou is the downstream, about 382km long, flowing through Jianghan Plain, and the river twists and turns gradually shrink. There are many dangerous canyons in Hanjiang beach, with large runoff, rich hydraulic resources and good shipping conditions.