Dujiangyan is located in the west of Chengdu City, Sichuan Province, across the Minjiang River in west Chengdu Plain. Dujiangyan Irrigation Dam construction was started in 256 BC, and serves as the oldest water conservancy project in the world, which is still used to control water without the help of dam.
The historical background of Dujiangyan began in the Warring States Period, Li Bing, the governor of Shu County in the Qin State, decided to build the Dujiangyan water conservancy project in order to control the Minjiang River flood and develop agricultural production and economy. This project not only solved the water source problem in the Chengdu Plain, but also had a profound impact on the development of water conservancy engineering in China, and was hailed as one of the masterpieces of water conservancy engineering in ancient China.
The scenery near Dujiangyan Irrigation Project is beautiful, and there are many cultural relics and historic sites. Dujiangyan scenic area is composed of Lidui Park, Dujiangyan Water Conservancy Project, Erwang Temple and Yulei Mountain. With a history of more than 2000 years, Dujiangyan City originates from weir and prospers from water. As early as the Neolithic Age, it was the area where ancient Shu ancestors lived and was one of the birthplaces of the ancient Shu state. The Minjiang River is located in Aba Tibetan and Qiang Autonomous Prefecture, It flows from Gonggang Ridge in the east, Langjia Ridge in the west, and Songpan, Wenchuan and other counties in the south to Dujiangyan City. The water flow is abundant, and after reaching Chengdu Plain, the flow rate drops sharply, which is easy to silt and collapse. Before the construction of Dujiangyan water conservancy Project, the flood was serious.
The construction of Dujiangyan Irrigation Dam has enabled the Chengdu Plain to make full use of water resources, greatly increased agricultural production and promoted economic prosperity. This has also laid the foundation for the development of Chengdu, and Chengdu Plain gradually became the political, economic and cultural center of Southwest China, known as the "land of abundance". The construction of Dujiangyan Irrigation Project not only solved the problem of water source in Chengdu Plain, but also had a profound influence on the development of water conservancy projects in China.
