1, Li Bing

Li Bing, who built Dujiangyan water conservancy project, is also an outstanding expert in water conservancy projects. During his tenure as the magistrate of Shu County, Li Bing inherited Dayu's experience in water control and built Dujiangyan with the scientific method of gravity irrigation without dam, which created the largest water conservancy project in the world and made Chengdu Plain "from waterlogging to drought, not knowing hunger". Dujiangyan is also a contemporary world cultural heritage, and its irrigation area has expanded from more than 3 million mu in ancient times to tens of millions of mu today.

2. Su Shi

Su Shi also has a set of methods to control water. He built the Yellow River Wooden Shore Project in Xuzhou, led the army and civilians to dredge the West Lake in Hangzhou, and left the famous "Su Causeway". Zhang Zhilie, honorary president of China Su Shi Research Association, introduced that Su Shi presided over or participated in countless water conservancy projects in different posts, and also wrote water conservancy works such as Protecting the River in Xining, Water Supply Methods in Yu and Qiantang six wells.

3. Dayu

The scientific nature of Dayu's water control is that he put forward the general plan of "changing the blockage into dredging and guiding the situation". Most importantly, he used 10 for many years before and after, and finally succeeded in harnessing the water, which reflected the fearless and hard-working spirit of the Chinese nation. Especially more than 4,000 years ago, Dayu was able to successfully harness water with the help of all people, which was of great significance to the formation of civilization. For thousands of years, Dayu's water control has been one of the important spiritual totems of the Chinese nation.

4. Sun Shuaio

More than 2,600 years ago, there were frequent floods in the Huaihe River, and Sun Shuai 'ao presided over the flood control and went bankrupt. After three years, quèbüI, the first water conservancy project in the history of China, was finally built, which used the ancient Huaihe River to flood and build ponds to irrigate agriculture and mulberry trees, benefiting the people of Huaihe River.

5. Guo Shoujing

In the first year of Yuan Dynasty (1264), Guo Shoujing was ordered to repair and dredge the ancient Xixia Canal, set up sluices and weirs, and irrigate local farmland. In the 28th year of Yuan Dynasty (129 1), Guo Shoujing was appointed as the water superintendent of the capital, responsible for repairing the canal from Dadu to Tongzhou. It took a year to complete all the projects, named Tonghui River, and develop north-south transportation and water transportation.