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Dujiangyan Irrigation System

The Dujiangyan Irrigation System is a great project in the water works construction of ancient China. It lies on the Minjiang River in the northwest of Dujiangyan City in Sichuan. Built over 2,200 years ago, it still provides benefits for locals.

As the Minjiang River was ordinally blocked by the Yulei Moutain, the Chengdu Plain had no the plain had no access to river irrigation and agricultural development in the region was therefore seriously affected. About 250 BC, after making careful survey on the region, Li Bing, the governor of the Shu Prefecture of the Qin State, had a channel cut through Mount Yulei and form a man-made river. In the middle of the Minjiang River, a dyke was built to divide the river into two parts :the inner river and

the outer river. In order to control flood and charge silt, two spillways were built at the end of water-dividing dyke. So the river was tamed and serves for the people ever since.

The ancient Dujiangyan Irrigation System is a scientific marvel. The main system consists of three parts: a fish-mouth-like water-dividing dyke, two spillways for discharging flood waters and silt, and a channel cut through Yulei Mountain as a water inlet. These three parts interact and depend on one another, constituting a carefully designed and reasonably arranged water diversion hub that contributes to irrigation, flood control, and shipping.

The Dujiangyan is encircled by beautiful landscape, also there are many cultural relics and historical sites, such as the Fulong Temple, Erwang Temple, and the trail bridge.


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