or 3g "Your Majesty don't be in a hurry, this levee burst has nothing to do with Your Majesty, it has to be related, it is our courtiers who did not do well and dereliction of duty that caused the Yellow River to burst." "Domain name-nos-please be familiar with it," Zheng Lang comforted.

There are some rumors in the fang, saying that the Song Dynasty ushered in the best era, the emperor loves the people, and the prime minister also loves the people. In fact, Zheng Lang loves the people, and loves him equally, but it is far less than Zhao Zhen.

For example, when appropriate, Zheng Lang also disregards life. Zhao Zhen is completely a good person, and what he is most afraid of hearing is that someone will die. Otherwise, it would be impossible to break the embankment in front of the news that the news came to Zhongshu, and in spite of a heavy rain in the back, from the dormitory to Zhongshu Province.

Looking at the twists and turns, Zhao Zhen's face was very sluggish, and this attitude made Zheng Lang feel a little sour.

"Zheng Qing, what else is there to control the Yellow River?" Zhao Zhen asked in a hoarse voice.

What I just said is unrealistic, and it is possible to plant more trees, but it is impossible to return farmland to forests and forests in the entire Yellow River Valley.

Zheng Lang said slowly: "There are two strategies. ”

Every crisis is an opportunity for Zheng Lang.

The disaster of the embankment is still a good opportunity.

At this time, in the second half of the night, coupled with hearing this bad news, several people were all depressed, and when they heard that there were two strategies, they were refreshed and stared at Zheng Lang.

Zheng Lang said: "Let's talk about governing the river first. ”

"Say," Zhao Zhen said solemnly, and then looked at a small official on the side, who understood, and began to take a pen to record.

"Your Majesty, the way to govern the river starts from Dayu, the legend is that the nine rivers are dredged, the dragon is chiseled, the Yique is opened, the river is guided, the Ji and the sea are poured into the sea, the Ru Han is broken, and the Huai Si enters the river." Zheng Lang used the word legend, with the labor force and technology of the primitive society at that time, it was impossible to have such a large range of activities, and I am afraid that the water of the Yellow River would be injected into the sea. If there is something to do, most of them are only active in the Heluo area, that is, with Luoyang as the center. Change the blockage to dredging and control the river water. Therefore, except for one block, it is better to learn from it, and the others have no reference meaning, and they are skipped in one sentence. He also said: "In the autumn of Cūn, various countries began to build embankments, but the countries were beggar-thy-neighbor, and the construction of embankments was very unreasonable. No warp prevention. But at that time, the river water was relatively stable. In the Warring States period, the number of people increased, farming and animal husbandry also increased, the water and soil damage was serious, the Yellow River began to be turbid, and there was more sediment, and it began to be harmful in the Western Han Dynasty. There are eleven breaches in history. The Han Dynasty was forced to have no choice but to openly solicit a plan for river governance in the early years of Emperor Wai. Jia Rang offered three strategies to govern the river. Its policy is to lead the Yellow River to retake the old road of the Yugong River, so that between the Taihang Mountains and the old Yellow River embankment, there is a wide and unhurried place. Zhongce is to give up the old embankment of the Yellow River and build another embankment, so that the Yellow River and Zhangshui will contract to go to the sea, and build water on both sides of the river to transfer water management. However, the topography has changed, and the old road of the Yugong River is close to the Taihang Mountain, and the terrain is high, which is difficult to recover, and the assumptions of the upper and middle policies are unrealistic. So there is only a strategy. Relying solely on embankments for flood control, although it is inferior and thin, and the labor cost is not self-sufficient, it is the best policy, but it is mostly used by future generations. ”

In fact, Zheng Lang is skeptical of the so-called Yugong Taihang Mountain Old Yellow River Old Road, and it may not be such a thing at all.

Ran Yao Shun Yu soup has become a saint. It is not necessary to discredit suspicions, cause controversy, and only say that the terrain is inconvenient.

continued: "The Eastern Han Dynasty used this strategy to achieve some achievements. However, at the time of Wang Mang, Zhang Rong applied for a plan to control the river, and proposed another method, according to the water xìng down, the water flow is fast, and the sediment will naturally be scraped and silted, so that the river cáng will become deeper. However, Wang Mang did not adopt it, and then the two Han Dynasty were replaced. Then to the Eastern Han Dynasty Wang Jing to control the water, with Jia Rang to make a policy, but do very meticulously, send hundreds of thousands, and Wang Wu to repair the canal, from Xingyang East to Qiancheng Haikou canal, Jing Nai degree mountain, dig the mountain mausoleum, break the achievements, straight cut the ditch stream, prevent and curb the rush, dredge the accumulation, make the Yellow River into Si, and ten miles of a water mén, along the natural topography to build a flood route closer than the Western Han Dynasty River, with water mén and embankment constraints, due to the river ratio of the large drop, the water flow and sand carrying capacity is strong, so that the Bianqu has become an ideal floodway in the lower reaches of the Yellow River, Reduce the rate of sediment uplift in the river cáng. This project benefited the Wei, Jin, Northern Dynasties, Sui and Tang dynasties a lot. There is also a change, due to the irrigation of the Huanghuai Si, the sediment enters the sea, and the coastline extends to the sea. In addition, I have also benefited from this project. ”…,

Zhao Zhen and Chen Zhizhong were all stunned.

Wang Jingzhishui knew, but most of the others didn't know, especially the eastward expansion of the coastline.

"In the Tang Dynasty, due to Taizong's resettlement of the Hu people, from Lingwu to the north and south of the Hetao, most of the Hu people of various ethnic groups, to live on herdsmen, serious harm, when the Tang Dynasty and Tubo confronted, and in the Dafei River and watering river area more cultivation and planting, from the Dafei River, all the way to the Hehuang area, the Nanhetao, the former abundant water and grass, all become the Gobi Desert and desert, the sediment content is large, Wang Jing's water conservancy project is beyond the power of the power, plus the people of our dynasty are better than the previous dynasties, the river cement and sand content is higher, this is the main reason for the river flooding many times."

Talk about the history of the Yellow River from beginning to end.

But no one was surprised, Zheng Lang is very knowledgeable, and it is not surprising to know the history of these cold méns.

Zhao Zhen said: "He ceased to control the water. ”

Wang Jing led Huang into Bian, but where to lead now? It can't lead anywhere!

Zheng Lang pondered.

After that, the Yellow River became more and more seriously flooded, and it has been treated countless times.

Zheng Lang can't remember the small governance clearly, but he still remembers some of the big governance luck.

In the Yuan Dynasty, Jia Lu and Ouyang Xuan governed the Yellow River, dredging the South River and Saibei River, so as to restore the old road and kill the water potential. However, after the North River was blocked, the water could not be discharged, and the embankment burst five times in a row, which was a mistake. However, his companion Ouyang Xuan wrote a book "Zhizheng River Defense Record", which described in detail the methods of building embankments, repairing silicon, and opening canals, which became the first systematic work on water conservancy engineering in China.

Jialu failed to govern the river, and in the Ming Dynasty, Pan Jitao served as the fourth governor of the river, before and after more than ten years, in Mō Suo the method of river governance, and finally turned Zhang Rong's strategy out, in a simple sentence, is to bind the sand to govern the river. Build embankments to restrain water, and attack sand with water!

The specific method is to build embankments, which are divided into four types: embankments, moon embankments, remote embankments, and lattice embankments: embankments are close to the river, which are used to restrain the flow of water, and are intended to bind water and attack sand; The moon embankment is built within the embankment, as an avant-garde, so as to prevent the water from rushing directly to the embankment, and play the role of protecting the embankment; In addition to the embankment, another remote embankment was built as the second line of defense; A lattice embankment was built between the remote embankment and the embankment. In the event of an accident on the embankment, the cross-flow will be stopped to prevent the water from flowing down the embankment and becoming a separate river. In addition, water-reducing stone dams were built in low-lying areas along the river. When the flood water rises to a certain height, it is vented to the flood distribution area through the water reduction stone dam to kill the water potential.

The former can be said to be the most scientific method of harnessing the Yellow River.

However, he regarded the construction of embankments and the sand as the only standard, opposed the diversion of water to kill the water potential, regardless of the strength of Huang and the weakness of Huai, and built embankments to block Huai, bī Huai and enemy Huang. As a result, the backflow of Huai water has become a problem, and it has still become a failed river control law.

As a result, the troubles of the Yellow River continued to be left to the Qing Dynasty.

Le Fu and Chen Huang ruled the river, and Le Fu still inherited Pan Jitao's strategy of rushing the sand in the river, but it has developed. It is believed that the water control must start from the lower stream, the lower stream is dredged, and the river water enters the sea quickly, and the upper stream is not full, so the Sichuan River is picked between the Huanghuai inlet waterway. The embankment is built with the dredging pass, and the dredging mouth and the embankment are unified. And the scope of construction was extended to the middle reaches of Henan, and its effect of river control was far greater than that of Pan Jitao. It was even suggested that the middle and lower reaches of the Yellow River were only a palliative measure. Only by trying to stop the sediment from the upstream is the remarkable vision of the root cause.

Of course it is impossible.

If you want the upstream water to be clear, the only way Zheng Lang just now, to return farmland and grazing, so that both sides of the Yellow River and its tributaries become forests and grasslands, which makes sense, but it will never be realized.

I went through the front and back.

If it had been governed in the Song Dynasty, as long as the method was reasonable, the water and soil damage would not have been as serious as it had been later. There may not be a way, but he hesitated a little and said: "Your Majesty, if you control the Yellow River, if it is a standard treatment, the effect is not great." If you want to achieve some results, you must spend a lot of manpower and material resources. ”…,

"Let's talk about it......" Zhao Zhen was a little ashamed.

is ashamed of the money, Zheng Lang repeatedly said that the country should save expenses in order to recover the Western Xia, this statement is not new, Zhao Kuangyin mentioned it very early, it is considered the ancestral family law, but the target is different, from the sixteen states of Youyun to the Western Xia.

However, the treasury has been very empty, and this summer harvest was slightly better, but in the event of this catastrophe, the surplus of the treasury will be squandered again.

"Use Zhang Rong's strategy to bundle the water and wash the sand."

"What is the sand rush?"

"Restrain the water of the Yellow River, increase the flow of water, wash sediment into the sea, make the river cáng deeper again, and reduce the harm caused by the above-ground river."

"That's more dangerous."

Now there is a continuous phenomenon of embankment breaking, and the river is constrained again, and I don't know how many embankments have to be broken.

"There is a way to solve it, build an embankment and build a dam, close to the river embankment, restrict the flow of water, and build a moon embankment in the embankment to protect the embankment. Another remote embankment is built in the embankment, as the second line of defense, the embankment and the embankment are built again, and the cross flow is stopped when it meets the grid, so as to prevent the water from flowing down the embankment, break the embankment, and become a river channel. Then build a stone dam to reduce water at a low place, in case the water potential is huge, pull the stone mén, and bring the water to the flood area to kill the water potential. This effect will be discussed in the second policy by the ministers. As he spoke, he was afraid that everyone would not understand, so he drew the shape of the four embankments with a pen.

"That's a feasible strategy...... Zhao Zhen said.

Although there is a lot of labor, there will be labor available soon, and I don't know how many victims will appear, so I have to give relief anyway, so it is better to use them to build embankments when the water is a little smaller.

"This alone is not enough, if you want the river to reach the estuary as soon as it reaches the downstream, you have to treat the downstream so that the sediment enters the sea quickly, and the second is to reduce the amount of water stored upstream. It is necessary to build another canal in the lower reaches of the Yellow River, Jishui and Huai River, so that the three rivers can be melted and then dredged into the sea, which is conducive to water transportation and water diversion. And the embankment area will be started from the Long Mén Gorge, so that the effect can be achieved. Zheng Lang said again.

Le Fu channeled the Huanghuai, there was a front embankment, the Yuan Dynasty set the capital in Beijing, rebuilt the Grand Canal, diverted Shandong, on this basis, this is the realization of his plan. The Song Dynasty did not have this innate condition, and this is precisely the root of the water and sand. Otherwise, if the water is bound, the water will not be quickly discharged into the sea, and it will flood again. This is another reason for Pan Jitao's failure to control the water, not only because it blocked the Yellow River in the north.

In this way, it is more reasonable.

But the monarch and the ministers were silent together.

I don't know how much money it takes to build an embankment to contain water just from the dragon mén, and then a canal, and then a lot of water mén and dikes, where does so much money come from?

After a while, Zhao Zhen said, "The second strategy." ”

"The second strategy is not only to control the water, but also another problem, the minister once said, people have their strengths and weaknesses, choose their strengths, abandon their shortcomings and employ people. The same is true of the land, and if you want to govern the place, you must adapt it to local conditions. ”

In the past two months, Zheng Lang has rarely spoken, but in the middle of the night in this stormy Jiāo, it finally bloomed with dazzling brilliance. (To be continued.) If you like this work, you are welcome to vote for recommendation and monthly passes, and your support is my biggest motivation. )RQ