Dujiangyan, a dam that determines the fate of the world, and water that nourishes the land of abundance.

Dujiangyan is an ancient Chinese water conservancy project located in Dujiangyan City, Chengdu, Sichuan Province. It is not only famous for its grand scale and unique damless water diversion design, but also still provides irrigation and flood prevention services for the Chengdu Plain. 1. **Historical Background**: Dujiangyan was built around 256 BC during the Warring States Period, and was built by Li Bing, the governor of Shu County, Qin State, and his son. Its construction marked the peak of ancient Chinese water conservancy projects and demonstrated the wisdom of the ancient Han laborers. 2. **Project Composition**: Dujiangyan is composed of parts such as the Fish Mouth, Feisha Weir, and Baopingkou, which work together to automatically control the flow of water, effectively distribute the water of the Minjiang River, ensure irrigation needs, and prevent flood disasters. 3. **World Heritage**: Dujiangyan, due to its unique historical value and scientific and technological achievements, was listed as a World Cultural Heritage by UNESCO and was hailed as "the world's oldest, only surviving, and grand water conservancy project characterized by damless water diversion". 4. **Function and Impact**: The construction of Dujiangyan completely solved the problem of the Minjiang River, provided a stable water source for the agricultural development of the Chengdu Plain, and made it a "land of abundance". Its irrigation area covers more than 30 counties and cities, with an area of nearly 10 million mu, and it has played an important role in food security, economic development, and social stability in Sichuan and even China. 5. **Tourist Information**: Dujiangyan is not only a miracle of water conservancy projects, but also a popular tourist attraction. Tourists can visit Lidui Park, Dujiangyan South Bridge and other attractions to experience the greatness of ancient Chinese water conservancy projects. The scenic area provides tour guide services and rich historical and cultural experiences, allowing tourists to have a deeper understanding of the history and cultural value of Dujiangyan. The construction of Dujiangyan not only embodies the wisdom of the ancient Chinese people's harmonious coexistence with nature, but also is a model of modern sustainable development. Its story and value will continue to inspire future generations.