There is a modern song called "Descendants of the Dragon", and there is a lyric in this song that reads: "There is a river in the far east, and its name is the Yellow River......"

The Yellow River, the mother river of the Chinese nation, this surging mother river gave birth to the brilliant Chinese civilization, but she has never been a "good mother", and the continuous diversion and flooding in history have brought countless devastating disasters to the people of the Yellow River Basin. Even in the modern 21st century, there are still a large number of floating corpses on the Yellow River!

Throughout the development of human civilization, it is actually a history of struggle between man and nature, with harmonious coexistence and saber rattling. With the vigorous development of Chinese civilization in the Yellow River Valley, more and more human activities and the growing population will unsurprisingly develop into floods when they encounter floods.

From the perspective of the dynastic changes in Chinese history, the Yellow River Basin has been in a cycle of decline, war, reconstruction, prosperity and decline, and each new round of prosperity is a new round of disaster for nature. When the agricultural civilization of Han culture shifted more and more to the south, the sediment accumulated for hundreds of years finally ushered in a new round of explosion.

In the Ming and Qing dynasties, the Yellow River broke and diverted its course more frequently.

According to the "Introduction to the Governance of the River in the Ming and Qing Dynasties", in the two hundred and seventy-seven years of the existence of the Ming Dynasty alone, the number of breaches and diversions of the Yellow River reached a staggering 456 times, an average of once every seven months. In the 1,500 years from the Eastern Zhou Dynasty to the end of the Tang Dynasty, the number of embankment bursts in the entire Yellow River Basin was only more than 60 times, and there was only one embankment breach and flood in 25 years on average!

While the river floods have claimed millions of lives, they have also caused a large number of displaced people to flee and migrate, forming a population flow situation of "big disasters and big tides, small disasters and small tides". In the Ming Dynasty, about one-tenth of the more than 60 million registered people in the country became homeless, not only wandering in a foreign land without a fixed place, but also starving to death everywhere.

The hardest hit is in Henan. In the early Ming Dynasty, 72% of the floods occurred in Henan Province!

During the Ming Dynasty, the annual cost of building river embankments and controlling floods reached about 10 percent of the imperial court's financial revenue, and during the Qing Dynasty, this proportion once reached 20 percent!

In the Manna Palace, the atmosphere suddenly became tense.

Li Er asked with an ugly face: "There will be a flood in Luoyang in nine years~?" Li Zexuan, did Lingxu really have this prophecy before his death~? ”

The five ministers in the main hall looked at Li Zexuan with burning eyes, the Yellow River burst its banks and flooded Luoyang, this is not a trivial matter, and the Lingxu Zhenren has been infinitely mythologized by many people, and the prophecy he said has to be taken seriously!

Last year, Li Zexuan said that in June this year, a locust plague would break out in the land of Guanzhong, and finally the military general group headed by Qin Qiong and Cheng Yanjin came forward to guarantee that the imperial court would send a fleet to the south to trade and exchange grain.

At that time, the eldest grandson Wuji and other cadres of the Wenchen group felt that even if the locust plague would not break out as scheduled, the imperial court would not lose so much grain from the small Nanyang country at such a low price! And everyone can expect that the decisive battle between Datang and the Turks will be within a few years, even if there is no locust plague, Datang will also need a lot of grain and grass to prepare for the needs of the battle array!

So they also agreed to Li Zexuan's policy of Guangtun grain!

But now Li Zexuan said that a flood will break out in Luoyang in nine years, causing the whole city to be flooded, is this okay?

You must know that Luoyang City's status in Datang is second only to Chang'an. In the first year of Emperor Yang of the Sui Dynasty, Luoyang was already set up as the eastern capital, after Li Yuan established the Tang Dynasty, it was even more difficult for people to repair the palace in Luoyang, and then Wu Zetian, who had monopolized power and was called the system, directly renamed the eastern capital Luoyang as the divine capital, which shows the important position of Luoyang in the Tang Dynasty!

Chang'an City is the political center of Datang, and Luoyang is the economic and cultural center of Datang! Although the population in Luoyang City is not as large as Chang'an, it is not far away, with a population of at least seven or eight hundred thousand!

If Luoyang City is flooded, the loss will really be too great!

Under the gaze of everyone, Li Zexuan arched his hand towards Li Er with a solemn face: "Your Majesty, the stakes are very high, and the ministers dare not speak falsely!" The family teacher said, Zhenguan eleven years, yellow gas in the sky, heavy rain, valley overflow, into Luoyang Palace, four feet deep, bad left door, destroy the palace temple nineteen ~! ”

The stakes are very high, Li Zexuan really doesn't dare to talk nonsense, according to the official history, in July of the eleventh year of Zhenguan, Luoyang City will indeed be flooded, but these words are not said by Lingxu Zhenren, but written in the history books!

"What? Water into Luoyang Palace? ”

Listening to what Li Zexuan said, as if he had seen it with his own eyes, Li Er's face was suddenly covered with a layer of haze, how high is the terrain of Luoyang Palace, if even Luoyang Palace is flooded four feet, wouldn't the people be flooded and millions of corpses?

"Then if you follow your words and plant trees in the Yellow River Basin, the disaster of the Luoyang flood in nine years can be avoided~?"

Last year, there was no snow in Chang'an City all winter, and this year's locust plague was almost a foregone conclusion.

Li Zexuan pondered for a moment and arched his hand: "Your Majesty, as the so-called ten-year trees and hundred-year-old trees, it is not a matter of one or two days for saplings to grow into big trees, and improving the soil structure of the Yellow River Basin is by no means something that can be completed within one or two years!"

There is no guarantee that afforestation will change the fate of Luoyang flooded nine years later, but compared with building dikes and disaster relief and flood control, afforestation is definitely the most effective and cheapest way to control the Yellow River!

Once there is a large-scale shelterbelt in the Yellow River Basin, the sediment content in the Yellow River will be greatly reduced, and even if the Luoyang flood in nine years can not be avoided, the above-ground hanging rivers and dam bursts that may occur in 10 or 20 years will not easily occur again! This is a matter of merit in the present and in the future, Your Majesty is wise and martial, ambitious, and hopes that Your Majesty can make a prudent decision! ”

Although the number of floods in the Yellow River in the Tang Dynasty was indeed more frequent than in the previous dynasties, compared with the later dynasties of the Song, Ming and Qing dynasties, the floods in the Tang Dynasty were not frequent or serious at all!

However, Li Zexuan, as a descendant of Yan and Huang, as a traverser who knows the future, since he was reborn in such an open and inclusive era, he feels that he has the responsibility to deal with the Yellow River when it first begins to become dirty, so as to prevent tens of millions of Han people from dying in the flood in future generations!

Those people who died in the flooding of the Yellow River are all his compatriots!

His Tang Dynasty does not allow any regrets! Therefore, Li Zexuan spent a lot of effort and a lot of tongue to persuade Li Er, to persuade this group of imperial ministers, to believe in his afforestation and waterproof policy, thousands of years later, no one may remember Li Zexuan, Marquis of Yong'an, but those who grew up drinking the water of the Yellow River can remember him as the initiator of afforestation!

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