Dujiangyan.

Dujiangyan is an ancient irrigation system located in Dujiangyan City, Chengdu, Sichuan Province, China. It was built around 256 BC under the leadership of Li Bing, the governor of Shu County in the Qin State, and his son. It is known for its unique dam-free water diversion design and still provides irrigation and flood control services for the Chengdu Plain. Dujiangyan is not only a testament to the wisdom of ancient Chinese laborers but also a UNESCO World Heritage Site, praised as "the world's oldest and only surviving grand water conservancy project characterized by dam-free water diversion." ### Historical Background The construction of Dujiangyan marked the peak of ancient Chinese water conservancy projects. Its construction completely solved the problem of flooding in the Min River, providing a stable water source for agricultural development in the Chengdu Plain, making it the "Land of Abundance." ### Project Components Dujiangyan consists of parts such as the Fish Mouth, Feisha Weir, and Baopingkou. These components work together to achieve automatic water flow control, effectively distributing the water of the Min River, ensuring irrigation needs while preventing flood disasters. ### World Heritage Dujiangyan is listed as a UNESCO World Heritage Site due to its unique historical value and technological achievements. ### Tourist Information Dujiangyan is a popular tourist attraction where visitors can explore attractions such as Lidui Park and Dujiangyan South Bridge, experiencing the greatness of ancient Chinese water conservancy projects. The scenic area offers guided tours and rich historical and cultural experiences, allowing visitors to gain a deeper understanding of the history and cultural value of Dujiangyan. Dujiangyan is not only a marvel of water conservancy engineering but also a popular tourist attraction, reflecting the wisdom of ancient Chinese people in harmonious coexistence with nature and serving as a model for modern sustainable development. Its story and value will continue to inspire future generations.