Information about Weihe River Brief Introduction to Weihe River

1, Weihe River, formerly known as Weishui, is the largest tributary of the Yellow River. Originated in Bird and Rat Mountain in Weiyuan County, Dingxi City, Gansu Province, it mainly flows through Tianshui in Gansu Province, Baoji, xianyang, Xi and Weinan in Guanzhong Plain of Shaanxi Province, and joins the Yellow River in Tongguan County, Weinan City.

2. There is an east-west Qinling Mountains on both sides of Weihe River, and a Liupanshan barrier in the north. Weihe river basin can be divided into loess hilly and gully region in the west and Guanzhong plain region in the east.

3. The main stream of Weihe River spans eastern Gansu and central Shaanxi. The total length is 8 18km, and the total drainage area is 134766km2.

4. It flows through the central and southeastern parts of Gansu Province and the central part of Shaanxi Province. Generally, the west source is the positive source, that is, the Weihe River originated from Bird and Mouse Mountain. There are two sources: Qingyuan River in Nanyuan County, which originated in Huohuo in the southwest of Weiyuan County and gathered many tributaries in the mountainous area. It is a perennial river with a length of more than 30 kilometers, which flows to Qingyuan Town and Xiyuan River in Weiyuan County in the northeast. Xiyuan, named Yu He River, originated from Xiniaoshu Mountain in Weiyuan County. The river is short and intermittent, and it is called Weihe River only after it flows eastward with Xiyuan. Longxi county flows east. Then it flows into Wushan County in the southeast, with Bangsha River, Shandan River and Danan River on the south bank, Gangu County on the east bank, Sandu River on the north bank, Hulu River in Tianshui City on the north bank, Jinghe River in the west and Niutou River in the east. Cross Xiaolongshan and enter Shaanxi Province.

5. Among them, in Dingxi City, Gansu Province, it originated from the north side of Bird and Mouse Mountain at an altitude of 3,495 meters southwest of Weiyuan County, Dingxi City, with the source altitude of 1.383 meters. After flowing through Weiyuan County and Longxi County from west to east, the main stream flows into Tianshui in Yaerxia. The catchment area in China is 1024 1.78 km2, accounting for 7.6% of the total area of Weihe River, with an annual sediment discharge of 50.44 million tons and a domestic erosion modulus of 5100t km2. In Tianshui City, the main stream of Weihe River flows through Wushan County, Gangu County and Maiji District, with a total length of 270 kilometers.