I became famous for broadcasting my life as a social animal to different dynasties

[45.22 meters, this is the highest water level of the Yangtze River in Jingzhou in 98. The fierce flood rushed in with a flow of more than 6 cubic meters per second, almost exceeding the Jingjiang embankment.]

Everyone was stunned: 45.22 meters!

What a terrifying height this is!

All dynasties in Jingzhou were somewhat afraid that once the levee could not hold back the flood, the town behind the levee would be completely destroyed!

[In order to improve the defense level, people raised the dam by 1-2 meters, with a total height of 12 meters. However, this is not a long-term solution, because floods often carry a lot of silt, which is easy to accumulate and cause the riverbed to rise, thereby causing the river level to rise. If the river embankment is raised blindly, it will be difficult to sustain in terms of cost and scientificity. ]

So that’s it! !

Officials in charge of water conservancy in various dynasties suddenly realized that if raising the river embankment was not a solution, then how could this problem be solved?

[This would require a huge reservoir to store the flood water.]

Reservoir? Save?

The emperors and ministers of various dynasties were all dazzled!

The people's eyes suddenly brightened up, then darkened again!

Reservoir! How big would a reservoir that can store flood water have to be! How many generations would it take for this corvée to complete the digging of the reservoir?

It would be better for us all to die together!

Ordinary people are filled with despair.

The emperor and his ministers cheered.

The video of the sky screen continues.

The winding river was blocked by a huge and majestic building.

[This is the Three Gorges Reservoir, the largest reservoir in China, which has not been surpassed so far.]

The camera moves forward and the Three Gorges Reservoir, which is discharging floodwater, makes a huge noise. Thick columns of water rush out rapidly like ferocious water dragons.

How shocking!

The emperor, his ministers, and the common people all opened their mouths wide, speechless.

[The reservoir area of ​​the Three Gorges Reservoir can hold 3000 West Lakes! ]

Wow! People who were visiting the West Lake looked at the West Lake next to it and shook their heads: West Lake is already very big, the size of these more than 3000 West Lakes is really unimaginable.

[Not only the Three Gorges, there are more than 50 large reservoirs on the Yangtze River! Every year when the flood season comes, these reservoirs will free up a part of their storage capacity in advance to prepare for the flood. This part is called flood control storage capacity. Once the flood comes, these flood control storage capacities can be used to accommodate the flood under the interception of the dam, so as to prevent the flood peaks from entering the downstream at the same time and overlapping to create greater risks. ]

【At the same time, these intercepted floods can enter the downstream in order by controlling the flood discharge time. This will achieve the purpose of peak reduction and peak shifting, and ensure the safety of the downstream river channel.】

[Adding more than 3 rainfall and water level monitoring stations and meteorological satellites covering the entire basin, scientists can use accurate rainfall and flood data as a basis to ultimately achieve joint scheduling of the entire reservoir group.]

Pan Jixun thought deeply: the flood discharge method of reservoirs in later generations is similar to the current method of controlling water and attacking sand.

It’s just that reservoirs in later generations were built larger and had more powerful functions.

When there is no flood discharge from the reservoir on the Guantianmu, no water flows out. So how is the flood discharge outlet of the reservoir controlled?

And hydropower, hydropower, how does water generate electricity?

There are more than 50 large reservoirs. How many years will it take to build such a huge project?

Wouldn’t such frequent conscription of the people for labor service cause social unrest?

There are also water level monitoring stations, so the conditions of rivers can be fully monitored, but how do weather stations predict accurate rainfall?

Pan Jixun had too many questions in his mind.

And the more I read, the more questions I have.

The same is true for each dynasty.

[In addition to the Jingjiang Dam on the north bank of the Yangtze River, there is also a low-lying area with extensive farmland on the south bank, which is a flood storage area.]

[This means that once a flood exceeds the capacity of the reservoir group, the people here will evacuate in advance, and then open the sluice gates to allow this land to temporarily store the flood as a "temporary reservoir". There are as many as 46 such flood storage areas.]

[These areas will not be opened unless absolutely necessary. ]

Pan Jixun sighed: People in later generations really tried their best to prevent floods.

Moreover, such a large project should have the support of the country. Thinking of the many difficulties he encountered in river management, Pan Jixun's face looked a little gloomy.

[Water resources in the north and south of China are extremely uneven. In order to break this uneven distribution of water resources, we must recreate rivers with human power.]

As soon as these words were spoken, the faces of the emperors, ministers and common people of all dynasties suddenly changed color.

The man-made canal meant a huge expenditure on the imperial treasury, and a large number of people had to be conscripted for labor service, and how many people would die?

Excessive corvée labor is often accompanied by riots among the people, and the possibility of the regime being overthrown...

Didn’t the imperial courts of later generations consider these things?

Of course they knew the huge benefits of opening the canal, but the dangers that came with it were also too great.

The imperial court was overthrown by the people if it was not careful.

When the common people thought of corvee labor, their faces turned pale. How could such a country in later times still have corvee labor?

But looking at Miss Zhou's appearance, it doesn't look like it.

Perhaps corvee labor in later generations was different from that of today?

Later generations actually dug tunnels under the Qinling Mountains to transport water? How did they do it?

Won’t they encounter landslides while digging?

Emperors and ministers of various dynasties marveled at the fact that it was possible to transfer water from the Han River to the densely populated Guanzhong Plain through a tunnel!

In this way, has the water shortage problem in the Guanzhong Plain been completely solved?

So great and amazing!

There is also a project to bring the Yellow River water through the desert and turn the desert into an oasis! !

This is the Yellow River! How can this river, which frequently bursts its banks and changes its course, be used in this way?

Some people couldn't help crying, for the Yellow River that is flooding now, and for the Yellow River that will turn the desert into an oasis in the future...

[However, even so, the most spectacular "man-made river" in contemporary China has not yet appeared. This is the world's largest inter-basin water diversion project: South-to-North Water Diversion! ]

South-to-North Water Diversion!

Everyone gasped again. Was this the South and the North that they understood?

Pan Jixun was so excited that his whole body was shaking: Water Diversion from South to North!

What a great idea! What a grand project! Once completed, it will be able to feed so many northern cities!

With tears in his eyes, Pan Jixun bowed respectfully to the sky: I am so fortunate to witness such a great water conservancy project in later generations. I have no regrets in this life.

The emperor and his ministers were dumbfounded. They thought that digging so many artificial canals was the most massive project in history, but they didn't expect there would be more! !

"Water Diversion from South to North", these four simple words contain so many astonishing technologies and demonstrate the powerful execution ability of future generations. The emperors shook their heads, saying that they could not do it, they really could not do it.

If this were to be done, the consequence would certainly be the resentment of heaven and people, and the dynasty simply could not afford it.

Kublai Khan was shocked and thought of one thing: Is this the benefit of not having an emperor in the future?