The greatest project in ancient China was not the Great Wall, but Dujiangyan, which was characterized by non-dam diversion.

After reading Yu Qiuyu’s prose “Dujiangyan”, Yu Qiuyu commented: “I think the most exciting project in Chinese history is not the Great Wall, but Dujiangyan.” And moved, this time I went to Northwest Sichuan and came to Dujiangyan to see this. It is a famous water conservancy project in ancient times. Dujiangyan was built in the third century BC. It is a large-scale water conservancy project built by Li Bing, the governor of Shu County in the Warring States Period of China, and his disciples. Water conservancy project. After more than 2,000 years, it still exerts tremendous benefits.

The Chengdu Plain, known as the “land of abundance”, was a place with severe floods and droughts in ancient times. The reason for this situation is formed by the “bad” natural conditions of the Minjiang River and the Chengdu Plain. The Minjiang River flows out from the Minshan Mountains and flows southward through the west side of the Chengdu Plain. For the entire Chengdu Plain, this is an out-and-out suspended river above the ground, and it hangs very strongly. The Minjiang River slopes to the southeast from Yulei Mountain at the exit of the mountain. The distance from Dujiangyan to Chengdu is only 50 kilometers, but the drop is as high as 273 meters. Whenever the Minjiang River is flooded, the Chengdu Plain becomes a vast ocean; when there is a drought, the land is red, and there is no harvest. The Minjiang River floods have long harmed Xichuan, swallowed fertile land and disturbed the people’s livelihood. It has become a major obstacle to the survival and development of the ancient Shu Kingdom. At the same time, the establishment of the Dujiangyan Water Conservancy Project has its specific historical roots. During the Warring States Period, wars continued and the swordsmen rose. The people who suffered from the wars longed for China’s reunification as soon as possible. At that time, the State of Qin, which was engaged in the reform of Shang Yang, became more and more powerful due to the reform, and people of knowledge came out in large numbers. “If you get Shu, you will get Chu, and if Chu loses, you will get the world together.” Under this historical background, King Qin Zhao appointed Li Bing, who knew astronomy, geography, and lived in Min’e, as the governor of Shu Kingdom at the end of the Warring States Period. After Li Bing took office, he first made up his mind to eradicate the Minjiang flood, develop agriculture in western Sichuan, benefit the Chengdu Plain, and create an economic foundation for the Qin State to unify China. In fact, two or three hundred years ago before the completion of the Dujiangyan Water Conservancy Project, King Du Yu of the ancient Shu Kingdom followed the advice of people of wisdom and excavated an artificial river at the outflow of the Minjiang River to drain the water from the Minjiang River into the Tuojiang River and partially eliminate the water damage. Li Bing’s creative Dujiangyan project is the main achievement in the eradication of this flood. This magnificent project has been benefiting the water and soil of the Chengdu Plain for more than 2000 years, and it has given the people here a foundation for living and working in peace and contentment. Dujiangyan is a grand water conservancy project featuring the wisdom of the ancients and featuring diversion without a dam. At that time, the crude production tools made full use of the characteristics of water flow and terrain to create an epic great project. The most important part of the Dujiangyan Water Conservancy Project is the Dujiangyan Canal Head Project, which is a key facility in the Dujiangyan Irrigation System. The ancients skillfully used and excavated the three major projects, namely the Yuzui diversion dike, the Baopingkou water diversion project and the spillway of Feishayan. Through water diversion, flow limitation, sand discharge, and flood discharge, the floods of the Minjiang River are effectively controlled, and the Chengdu Plain has truly become the “land of abundance”, a land of fish and rice. On the surface, the Great Wall of China is a magnificent and magnificent project. With the tenacious willpower of the Chinese nation, it has left a proud and magnificent project for our living planet. But the great Dujiangyan project is even more admirable in terms of benefiting future generations for millennia and tens of thousands of years. What’s more, the Dujiangyan water conservancy project is decades before Qin Shihuang ordered the construction of the Great Wall. With Dujiangyan, the Sichuan Plain has become a livable place in the rear of China. Whenever our nation encounters a major disaster, the land of abundance always provides a steady stream of shelter and nourish the Chinese descendants. It is no exaggeration to say that it has permanently irrigated the Chinese nation, giving the rise of China a guarantee from the rear. Nowadays, water conservancy projects mainly focus on the establishment of dams to reduce flow and divert floods, and at the same time provide a steady stream of clean resources for hydropower. Therefore, as an ordinary tourist coming to Dujiangyan, you may not understand the mystery of this project. It is recommended to ask a tour guide. If there are few people, it is recommended to listen to it, so that you can clearly understand the wisdom of this dam-free water diversion project and conquer the creativity of the ancients. Talent.