I became the son of Renzong

Li Yi is over 60 years old. The moment the old man saw the effect of Shushui attacking sand, he forgot that there were still many political discussions and cabinets ahead of him, and directly challenged the officials!

"Li Aiqing, don't worry."

For officials who do things, Zhao Xi has always supported them.

"Officials, attacking sand with beams of water should have a very obvious effect. It just washes down the sediment in Gyeonggi Province, and the flood control of Hebei Road will increase the pressure..."

"As the rich minister said, drawing water to attack sand is only a temporary measure, and it will treat the symptoms, not the root cause. Let's look down, fellow ministers."

The second sand table model, just like the terraced fields seen by Zhao Xi's later generations, can also be said to be a graded Doumen sluice.Each floor, each level of the dam, set up several small canals at different positions of the reservoir...

As Wang Zhongzheng commanded the inner supervisor to open the second set of models, the water in Jinming Pond rushed down instantly... the reservoir on the first floor was full, and while overflowing the embankment, those water diversion tanks The small canal also began to flow through.

In this way, the amount of water reaching the second layer has been significantly reduced by overflowing the dam.By analogy, the third and fourth floors... This time the water released by Jinming Lake is obviously much more than the first model. However, everyone can see the effect of such flood control... ····Obviously avoided the disadvantage of transferring the pressure to the downstream!

At this time, no one spoke anymore.

The officials have prepared three sets of models, and looking at this arrangement, it seems that one set is more effective than the other.I have forgotten the coldness of the autumn wind, and I am looking forward to seeing the surprises that the third group of modes will bring to everyone.

"The officials said that this is also a temporary water control method, and it also cannot change the nature of the Yellow River carrying sediment."

Wang Zhongzheng commanded the inner prisoner to close the gate of the second model... and led everyone to the third group of models.

Chapter 660 Another Purpose

The third group of models is Zhao Xi's most attentive.

Soil and water conservation is recognized in later generations, but it is not easy for people in this era to understand the principles.

This group of models is not for the river, but for the surrounding environment of the watershed. The shape of the model makes the ministers a little confused.

It's not a river form, and there are no dikes, gates, or anything like that.On one side is a bare mound. It can be seen that it was newly built. The soil quality has been treated, as if it has been rammed, and it is not as solid as ordinary rammed earth.

On the other side, there seems to be an original mound in Jinmingchi Garden, but the surrounding area has been dug out, leaving only a solitary mound with vegetation.After digging out the waste soil, it should be the bare mound.

The two mounds form a group, both of which are close to Jinming Pond. On the upwind position of the two mounds, two huge wooden barrels were specially built to store water... I don't understand...

"All the elders and ministers, you can first feel whether the soil quality of the two mounds is the same, whether the hardness is similar, and then do two experiments."

Wang Zhongzheng continued to serve as the commentator.

The ministers and workers didn't know why, but they did it anyway.In terms of soil hardness, the vegetation-covered mounds that existed originally seemed to be looser than the newly rammed mounds.

Around the two mounds, the ground was paved with cement, which is still bare.

Wait for the ministers and workers to take their positions... that is, leave the side of the mound.Wang Zhongzheng commanded the inner eunuch again, and opened the bucket on the top of the mound.

The way the bucket is opened is different from the previous two models, it is opened bit by bit.The water in the bucket slowly began to wash the two mounds...

incredible!Under the mound with vegetation, there is hardly any soil washed down, and the bare mound, just looking at it, has been washed out, a bit like the ravines in Linfu and Huanqing...

At this time, Wang Zhongzheng directed the inner prison again, adding water to the bucket while cleaning the concrete floor under the mound.

"The last test was to show water erosion, this time to test rainwater..."

As Wang Zhongzheng's words fell, the inner eunuchs moved the buckets at the top of the mound directly to the top of the two mounds.Then, a layer of baffle at the bottom of the bucket was removed... Only then did I find that the bottom of the bucket turned out to be two layers, and the remaining layer was densely packed with small holes.

It can be seen clearly with the naked eye. With the rain... let's say it is rain.As the rain falls, there is almost no change in the vegetated mounds, and even no water flow down the mounds can be seen, and the surroundings of the vegetated mounds are still clean.

And the bare mound, seeing the mound was drenched by the rain and turned into scars, and the clean and smooth mound was cleaned up again, it was already unsightly, full of potholes.And those water droplets, except for a few that seeped into the mounds, more of them formed tiny gullies again, flowing down slowly.

After a while, the entire mound was covered with a yellow mudflat-like water flow, and then formed a small stream along the terrain...

"This is the Yellow River flood, and this is how the real Yellow River flood was formed."

It was also the first time for Zhao Xi to have such a real insight, and he was a little dignified.

"The so-called knowledge from the small, you can try to imagine, enlarge this model, make it infinitely large, and place it in the northwest where you have seen or imagined. When the water flows together and forms a river, it is the Yellow River... "

Zhao Xi's remarks are actually not rigorous. In order to effectively explain the role of water and soil conservation, this is the only way to go.

No one does not believe it, it is seen in the eyes.

"Officials, is it possible that this is the root of water control?"

"It is also not true, or not all of them, but for the Yellow River, in order to completely control the floods of the Yellow River, the latter two must be organically combined."

"Actually, you can compare and think that the Yellow River is not the only big river in the country. For example, the Yangtze River, such as the Pearl River, etc., which river is like the Yellow River, and it wreaks havoc on the basin every few years?"

"What the upper reaches of the Yellow River are like, compared to the ministers and workers who worked in Qinzhou and Huanqing, I have seen it. There is no vegetation, and there is no channel for flood discharge. It is so sweeping down with sediment all the year round. Over time, the entire middle and lower reaches of the riverbed are covered. The sediment is piled up, and the pile is getting higher and higher, and even the annual cleaning of the sediment and the heightened dams cannot keep up with the speed of the sediment deposition!"

"If you want to control the water, especially the fundamental control of the Yellow River's floods, you must ultimately maintain the water and soil, and build various hierarchical doumen for flood discharge and irrigation in the upper reaches."

"The Yellow River is full of evils, but the only thing that is rich is the rich one. This one is the Xingqing Mansion in Xixia and the Yinshan Ranch in Beiliao, and further down is Guochao..."

In today's so-called banquet, my ministers and workers are not limited to the cabinet, and some even participate in politics. There are some things that Zhao Xi can't talk about in depth.

"Officials and veterans think that the current plan should start with a tentative approach. During the dry season this winter, the Ministry of Industry will lead the method of slashing water and attacking sand, and it will be used simultaneously on Jingxi Road, Gyeonggi-do, and Jingdong Road."

"Officials, the weather is cold. Your colleagues are old and should not live outside for a long time. The veteran thought that this time the appearance and statement have been completed, leaving the cabinet to discuss matters, and all colleagues can disperse!"

Fu Bi became more and more intimate.Indeed, some of the following words should not be announced to the public.

······

"Officials, the method of radical cure is not something that my Song Dynasty can lead..."

Fu Bi still didn't dare to speak out. Although he guessed the official's intentions, he couldn't be sure.When leaving the cabinet to discuss matters, Fu Bi said so.

"Indeed, to cure the floods of the Yellow River requires the joint management of the entire river basin. Whether it is Xixia or Beiliao, there is naturally no reason to accept the order of the Guochao. But what if they are all under the jurisdiction of the Guochao?"

"I said before that the unification of the Kyushu is not necessarily the king's ambition, nor is it the king's militarism. It is the need of a dynasty's security and defense, just like the dynasty needs the barrier of Yanyun sixteen states."

"Similarly, there is another point, which is the need to control floods. As we all know, in ancient times, the ancestors devoted themselves to water control, and it was because of water control that they created the living space for our descendants."

Zhao Xi carefully explained the cause of the flood in the Yellow River and the solution to it. The launch of Shushui to attack the sand is one aspect, and another purpose. Zhao Xi thinks it is time for the ministers to prepare: I want to fight Xixia!

"Official, are you ready?"

"The four-year conscription law is about to come. The plan of the Privy Council and the Ministry of War for one million conscripts can basically be completed at present. Even if we can't achieve the ability to recruit and win the battle, the country should have nearly 50 available. Soldiers!"

"Officials, I think it needs to be postponed for two or three years..."

Wen Yanbo solemnly raised his opinion.

"I think it is a safe strategy for new recruits to spend two or three years going to the northwest border to experience it in turns."

Chapter 661 The way of talking