Baopingkou

The bottle mouth really shocked me! Standing there, watching the water of the Lijiang River rushing through the narrow mouth, how did Li Bing and his son think of such a wonderful design more than 2,000 years ago? It is like a precision sluice, accurately control the water volume, so that the Chengdu Plain Drought and Flood Protection. Surrounded by trees, antique, and then listen to the explanation, understand its history and principles, I am full of an idea: the wisdom of the ancestors is too good!

Baopingkou is an important scenic spot in Dujiangyan Park. It plays a very important role in the water conservancy project. It is like a hole in the Minjiang River, and it is an important gateway for regulating and controlling the water inflow of Neijiang River! The scenery here is also very beautiful. Although there is only one building, it is worth stopping to take pictures!

The Dujiangyan Canal Headworks Project is mainly composed of three main projects: the Yuzui Diversion Dike at the Canal Headworks, the Feishayan Spillway and the Baopingkou Water Diversion Channel. These three projects adopt the scientific method of "diverting the river, building weirs and diverting water", with a rigorous structure and perfect layout, forming an organic whole that is interdependent and mutually restrained, and has achieved the benefits of "diverting water to irrigate fields, diverting floods and reducing disasters". Moreover, this project is still in use today and is called the "Living Water Conservancy Museum". It is also the oldest and only remaining grand water conservancy project in the world that features damless water diversion. Baopingkou is the key to the Dujiangyan Project. The Minjiang River is surging here, flowing to the vast fields and villages, benefiting all things in the world. This place was originally the long ridge of Xian Mountain (now called Guankou Mountain and Yulei Mountain) stretching towards the Minjiang River. Two thousand years ago, Li Bing and his sons faced the unruly Minjiang River and attacked Yulei Mountain with fire, digging out a 20-meter-wide, 40-meter-high and 80-meter-long opening. Because of its bottleneck shape and unique function, it was later called "Baopingkou". This Baopingkou, known as the "Neijiang water diversion throat", is equivalent to a "regulating gate" that can automatically control the water inflow of Neijiang. The small hill with 42 steps on the right side of Baopingkou, which was originally part of Xian Mountain, was the solitary pile separated from Yulei Mountain when Li Bing and his sons led the working people to open Baopingkou and divert Minjiang water to irrigate the western Sichuan plain. Because it is separated from the mountain, it is named Lidui. On the one hand, the excavation of Baopingkou made the Neijiang water rush here and be supported by Lidui, forming water blockage and vortex, making the water clearer and then entering the mouth. During flood season, the Neijiang River is forced not to flow into the narrow Baopingkou. Instead, it is forced to flow back along the vortex and drain to the outer river from Feishayan, acting as a control gate to ensure the safety of the Chengdu Plain. On the other hand, after the Neijiang River flows through Baopingkou, it is divided into tens of millions of irrigation channels through the main canal, forming a crisscrossing fan-shaped irrigation network, making the western Sichuan plain fertile and agriculturally rich, becoming the "Land of Abundance".

The whole water conservancy project is magnificent and unforgettable. It is great.

In 256 BC, Li Bing, the governor of Shu, and his son presided over the construction of the Dujiangyan Irrigation Project. Li Bing first dug a 20-meter-wide, 36-meter-long, and 18-meter-high opening in the Yulei Mountain that extends to the Minjiang River. The entrance is 70 meters wide and the exit is 50 meters wide. It is shaped like a bottleneck, so it is called "Baopingkou". The water of the Minjiang River is introduced from this opening into the Chengdu Plain.

Baopingkou is one of the three important components of the Dujiangyan Water Conservancy Project. It is the throat of the Minjiang River leading to the Neijiang River. The water passing through Baopingkou irrigates the Chengdu Plain. Due to the regulating function of Baopingkou, the Chengdu Plain is free from floods and droughts and does not suffer from famine.

Baopingkou is one of the most important parts of the Dujiangyan water conservancy project. Baopingkou is a gorge artificially dug out of Yulei Mountain. It controls the amount of water flowing into the Chengdu Plain, thus preventing the Chengdu Plain from flooding and ensuring water for irrigation and daily life.