Sichuan Dujiangyan
ujiangyan, located in Sichuan Province, China, is an ancient irrigation system that has been in continuous use for over 2,000 years. It was constructed around 256 BC during the Warring States period by Li Bing, a governor of the Shu region, and his son. The primary purpose of Dujiangyan was to control the flooding of the Minjiang River, the largest tributary of the Yangtze River, and to provide a reliable water supply for irrigation.
What makes Dujiangyan remarkable is its ingenious design, which harnesses the natural flow of the river without the use of dams. The system consists of three main components: the Fish Mouth Levee, the Flying Sand Funnel, and the Bottle-Neck Channel. The Fish Mouth Levee divides the river into an inner and outer channel, directing water to the irrigation network. The Flying Sand Funnel helps to discharge excess water and sediment, while the Bottle-Neck Channel regulates the flow of water into the Chengdu Plain.
Dujiangyan is not only a marvel of ancient engineering but also a testament to the wisdom and ingenuity of the Chinese people. It has transformed the Chengdu Plain into one of the most fertile and productive agricultural regions in China, earning it the nickname Land of Abundance.
Today, Dujiangyan is a UNESCO World Heritage Site and a popular tourist destination. Visitors can explore the ancient irrigation system, visit the Erwang Temple dedicated to Li Bing and his son, and enjoy the scenic beauty of the surrounding area. The site offers a fascinating glimpse into Chinas rich history and the enduring legacy of its ancient engineers.