Nepedia
Back to Discover
Advanced Reader
🗺️

Wei River

geography Maturity 7-9 Next article →

The Wei River is a major river located in west-central China. It flows through the Gansu and Shaanxi provinces. This river is the largest tributary of the Yellow River. A tributary is a smaller river that flows into a larger one.

Weirivermap
Weirivermap

The Wei River is very important for the history of Chinese civilization. It has a total length of 800 kilometers. It also covers a massive drainage area of 170,000 square kilometers. Many smaller rivers join the Wei River along its journey. These include the Luo, Jing, Niutou, Feng, and Chishui rivers.

The river begins in the mountains of southern Weiyuan County in Gansu province. The westernmost headwater is the Qingyuan River. This river forms the head of the Wei River after joining two small tributaries. The source is less than 100 kilometers from the Yellow River at Lanzhou. However, the two rivers do not meet immediately. This is because the Yellow River takes a sharp north turn at Lanzhou. This turn creates what is known as the Ordos Loop. The Wei River travels east for a long distance before finally reaching the Yellow River.

202309 Tongguan Ancient City Overview
202309 Tongguan Ancient City Overview

It drains into the Yellow River at Tongguan County. This happens near the boundary of Shaanxi, Shanxi, and Henan provinces.

The path of the river changes direction several times. After passing Weiyuan County, it turns slightly southeast toward Wushan County. It continues east until it reaches Gangu County. At this point, it curves north of the city of Tianshui. The river picks up the Ji River near Tianshui. Then, the Wei River enters the Mount Long area. It emerges as the principal river in the Guanzhong Basin. The river flows past many large cities. These include Tianshui, Baoji, Xianyang, Xi'an, and Weinan.

The climate in the Wei River valley is a continental climate. This means the area has hot summers and cool, dry winters. The valley sits between different environments. To the north are arid steppes and deserts. To the south are the forests of the Qingling mountains. Originally, the natural vegetation was a steppe-forest. However, human activity has transformed the land. Today, most of the area is used for agriculture.

China 2a
China 2a

The Wei Valley was one of the earliest cradles of Chinese civilization. Many famous dynasties had their capitals along this river. These include the Zhou, Qin, Han, and Tang dynasties. The area of Dingxi in Gansu contains many Stone Age sites. These sites show that early cultures lived near the headwaters. The valley was also the site of China's first major irrigation works. Irrigation works are systems that move water to help crops grow. Some historians believe the Wei is the ancient Jiang River. This river is linked to the legendary heroes Shennong and the Yan emperor.

The river also played a role in famous trade routes. The headwaters were part of the development of the Northern Silk Road. This road connected the capital of Chang'an to the west. The route passed through Baoji and Tianshui. It also went through Lanzhou and Dunhuang. This path allowed people to travel and trade across large distances.

China 2a
China 2a

Even Chinese mythology mentions the river. The legend of Kua Fu tells of a giant who tried to drink the Wei River. He did this to quench his thirst while chasing the Sun.

Human engineering has changed how the river behaves. In 1960, the construction of the Sanmenxia Dam caused sedimentation problems. Sedimentation is when soil and sand build up in the water. In 1972, the Baojixia diversion works were built. These works created the Baojixia Irrigation District. This district provides water for 400,000 hectares of cropland. However, these works have also resulted in reduced river flows. In September 2003, heavy rainfall caused major flooding. This event caused over 30 fatalities and displaced more than 300,000 people.

635 words

Where will your curiosity go next?

Keep exploring at your chosen reading level.

🖼️ Images & Media (3)
File:Weirivermap.png
Weirivermap.png
File:202309 Tongguan Ancient City Overview.jpg
202309 Tongguan Ancient City Overview.jpg
File:China 2a.jpg
China 2a.jpg
More to explore

🔬 Go deeper

More advanced topics to explore

🪜 Step back

Simpler topics to build understanding

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.