The ancient "Great Wall for Defending the Sea" that looks like fish scales can actually block the Qiantang Tide!

What methods did the ancients use to control floods? What kind of dam can withstand the mighty Qiantang River tide? Today, let us visit the China Water Conservancy Museum to uncover the ingenious methods of controlling floods from ancient times to the present, discover the many functions of Qiandao Lake, and trace the history of Zhejiang's water control.

Are you ready? Let's unveil the mystery of water conservancy projects together!

Popular Science Education Base // "The Most Scientific in Zhejiang"

The Zhejiang Association for Science and Technology Popular Science Education Base Consortium and the Zhejiang Science Popularization Federation have joined forces to make a big move and launched a super interesting program that takes you into Zhejiang’s popular science education bases - "The Most Scientific in Zhejiang" , which is like the "Running Man" of the scientific community!

This time, let's follow the footsteps of Cheng Kunli from the China Water Conservancy Museum and visit the China Water Conservancy Museum! Here you can find a wealth of water conservancy relics, an overview of ancient and modern water conservancy projects... Let's embark on this scientific journey together!

How can science popularization education bases tell China’s stories well?

China has a long history of water control, and the legendary "Yu the Great's Flood Control" is a famous example. In the China Water Conservancy Museum, water conservancy project relics from various dynasties are displayed.

Later generations unearthed ceramic three-way drainage pipes used for urban drainage at the Shang Dynasty site of Yinxu, which showed that a network branch had been formed when the underground drainage pipes were laid at that time.

△China Water Conservancy Museum - Tao Santong The Qiantang tide surged towards the shore. What stopped it? The Fish Scale Stone Pond is an important barrier against the invasion of the sea tide. The Fish Scale Stone Pond, the Great Wall and the Beijing-Hangzhou Grand Canal are known as the three major ancient projects in my country and are known as the "Great Wall for Defending the Sea".

△China Water Conservancy Museum——Fish-scale Stone Pond Model of Ming and Qing Dynasties

According to records, seawall projects have existed since the Han Dynasty, when Hua Xin built a large sea-defense seawall. During the Five Dynasties, King Qian of Wu Yue built a seawall and created a bamboo cage stone seawall. In the Ming Dynasty, Huang Guangsheng created the "five vertical and five horizontal fish-scale stone seawall." By the Qing Dynasty, the technology had gradually been perfected and finalized.

△ China Water Conservancy Museum - Stone blocks Ancient people used the most sticky glutinous rice to make paste and pour between each stone block, and then used iron rivets to fasten the tenons; iron ingots were used to lock the top of the stone pond to prevent it from loosening; earth mounds were added behind the pond to protect it. From the side, the layers of the pond body are arranged like fish scales, so it is called "fish scale stone pond".

△China Water Conservancy Museum - Ancient Water Conservancy Projects In addition, the China Water Conservancy Museum also displays various water conservancy projects from ancient times to the present, such as the Dujiangyan Irrigation System, Zhengguo Canal, the Three Gorges Dam, the South-to-North Water Diversion Project, etc.

The popular science education base takes you into Hangzhou's "big water tank"

The official name of Qiandao Lake is "Xin'anjiang Reservoir". It is a large artificial lake that integrates power generation, flood control, shipping, irrigation, and aquaculture.

△Xin'anjiang Reservoir The Xin'anjiang Reservoir has a water storage capacity of 21.6 billion cubic meters, which is approximately the water storage capacity of 1,500 West Lakes. It provides high-quality drinking water for nearly 10 million Hangzhou citizens.

Popular science education base talks about water resources protection

On the third floor of the China Water Conservancy Museum, there is an exhibition titled "Happiness Meets Rivers and Lakes in Zhejiang - Achievements of Exploration and Practice of the Zhejiang River and Lake Chief System under the Guidance of the '88 Strategy'", which showcases the process and achievements of water management in Zhejiang since the implementation of the river and lake chief system.

△China Water Conservancy Museum——"Encountering Happiness in Zhejiang's Rivers and Lakes" Exhibition

Taking Liyangkeng in Lishui City as an example, water samples from 2014 to 2017 are displayed here, and the changes in water quality before and after water treatment can be clearly seen.

△China Water Conservancy Museum——Liyangkeng water sample

Water can nourish life, but it can also take it away. Managing and improving water is closely related to our lives. There are many more wonderful things about water conservancy projects and water resource protection. Welcome to the China Water Conservancy Museum to explore them!

Diversity of science popularization education bases Zhejiang began to cultivate and develop science popularization education bases in 2001. So far, it has 53 national science popularization education bases, 251 provincial science popularization education bases, and 792 municipal science popularization education bases, spread across 11 cities in the province, covering large cities such as Hangzhou and Ningbo , as well as special bases in Jiaxing, Shaoxing, Jinhua and other places, realizing a balanced allocation of science popularization resources .

The types of popular science education bases cover many fields including history and culture, natural sciences , environment, technology, enterprise , health and medicine .

Zhejiang Natural Science Popular Science Education Base

Natural sciences: including natural history museums, zoos and botanical gardens, geological parks, etc., such as Zhejiang Natural History Museum and Zhejiang Oriental Geological Museum . They introduce various phenomena and laws of nature to the public and popularize ecological protection awareness through rich specimens, models and interactive experiences.