Wang Ju took out another painting.》

In fact, as long as you see the painting, 90% of the ministers have already understood it.

In addition to the Pearl River Delta, Guangdong and Guangxi are mostly mountainous terrain. The streams and rivers in most areas are mainly short, flat and fast. When typhoons arrive, mountain torrents and rivers surge, but in the dry season, there is no water. In this case, it is very difficult to build a weir. It is impossible to use a stone weir to be firm and block the impact of the mountain torrent. No matter whether the weir is big or small, even in later generations, many small weirs in Guangdong and Guangxi are still mostly stone weirs.

With the current relationship between the Song Dynasty and Guangdong and Guangxi, even if you have money, you will not spend it like this.

So Wang Ju changed his method and did not build an ordinary dam and also set up dams, which were located in small rivers and streams in various mountainous areas. These rivers and streams would not be navigable, so they set up dams in the river, but no steep gates. With this block, the water level upstream will inevitably rise and then overflow down the dam. The water will continue to leak, but the water level at the dam in the water will be raised. First, water can be diverted to irrigate, and second, it can also play a role in water storage during the dry season. It is low-cost and simple and easy to operate.

Don’t look at these two small things, if these two paintings are printed and distributed to the magistrates of Guangdong, Guangxi and Jingnan counties, and promoted by them, they can at least create tens of thousands of hectares of arable land.

And it also met Han Qi's appetite.

The people can buy these two small things by themselves, without the need for the state to pay a penny.

The money made Han Qi miserable, and he didn't dare to make a statement, otherwise he wouldn't know how many people would impeach him.

"Not bad, not bad, it's a good measure, keep talking," Han Qi said.

It's really good, even Peng Siyong has nothing to say, food is the most important thing for people. These two things will get a lot of "food" they will get.

Wang Ju picked up the brush again. He started from Dongting Lake and dragged it to Jiangning, and then said: "The ancients called this piece Jiangdong, so what Xiaguan said was the second line, Jiangdongwei."

"Environment?"

"Mr. Zhang is not a surround field, but a pier, and the land is in the pier."

"What's the difference?" Zhang Fangping asked in confusion.

"The fields of surround mostly refer to the Taihu area. Also known as Taihu area, from the Tang Dynasty, the Qian family of Wuyue has circulated the lakes to be cultivated land, and the southeast became the most important granary for our dynasty. However, to the west, there are also a large number of lakes, including the Taiping Army, Wuwei Army, Hezhou, Shuzhou, and Poyang Lake Dongting Lake and the ancient Yunmeng Daze area. The two forms are also circled lakes. However, the southeast is easily affected by sea breeze, especially when autumn comes. The autumn slums are severe, but because they are close to the sea, they come and go quickly. Jiangdongwei are different in forms, and they are far from the sea estuary. The water flow also takes time, just like the Battle of Dashun City, when the dead bodies float to Jingzhao Prefecture more than 20 days later."

"Stop talking about that," said Zeng Gongliang.

"Zeng Gong, Xiaguan is just to give an example. In fact, the flow of Huachi water and Beiluo water is relatively fast, but the flow of the Yangtze River is even smoother. Therefore, from the arrival of spring flood, the water level of the Yangtze River gradually rises, and the water level will not fall until after autumn. Therefore, its flood season is mostly in summer, and there are flood situations for several months, so it is distinguished by dikes and fences."

Wang Ju remembered that when he was a child, he didn't understand many things. For example, Wu Zixu passed Zhaoguan. In fact, the mountain in Zhaoguan was very short and there were no bad mountains around him. Why did he have to pass through that pass?

Also, why did Cao Cao go to the south of the Yangtze River and build a warship? It seemed that the Yuan people went south and the Qing people went south, but they did not train the navy. There was also such a good place as Jiujiang, why did Bai Juyi say it was a humid place?

Later I realized that this was the reason why he read a lot of books, otherwise many people would not know the secret, and then they would analyze the victory or defeat of the Red Cliff.

This is Jiangdongwei.

Since the Shen Kuo brothers developed Wanchunwei, the Northern Song Dynasty began to build polder fields under population pressure. The lakes and swamps turned into flat rivers. Do you still need warships? But during the Three Kingdoms, the polder fields were everywhere, so how could the navy take over Jiangnan without using a navy?

This is the credit of the Song people, but it has not appeared yet. Wang Ju took it out in advance. I am a person who understands water conservancy...

"So that's it. If that were the case, wouldn't these polder fields be underwater for less than half a year?"

It is not underwater, but the river surface is higher than that of the polder.

"That's why we have to build dikes and ridges before we can cultivate them."

"What if the plum rains cause waterlogging?" Zeng Gongliang said. He is from Fujian and knows the weather in the south.

"This is also easy to solve. First, there must be a large number of ditches and ponds in the ditches and ponds to store water, and then let the people catch the ditches and ponds to raise the arable land. In addition, some drainage and irrigation measures are set up. At the same time, rice planted in the south of the Yangtze River will not affect its harvest as long as it is not completely submerged. However, Zeng Gong, these are all fertile soil that has accumulated billions of years. Once it becomes arable land, it is possible to produce five stones and six stones per mu of rice in one quarter."

"Five stones and six stones?" Ouyang Xiu asked inconclusively. He had served as the prefect of Chuzhou, and this circle also circled Chuzhou, where the output of five stones and six stones came.

"Mr. Ouyang, please believe it. But there is one thing, both circles and dikes can be used. The river channel must be kept unobstructed and a certain amount of deep-water lakes must be retained to store water. The rainy season in the south is long. Once there is a lack of water storage lakes and the river channel is not smooth, it will be another disaster."

"Wanchunwei," Han Qi said.

"The Wanchunwei in Taipingzhou?" Zeng Gongliang also remembered.

This happened in the sixth year of Jiayou. Wanchunwei was built in the Southern Tang Dynasty, but it broke the embankment during the reign of Emperor Taizong of Song Dynasty, and some people seemed to have drowned. So the embankment was idle and no one cared about it. Until Shen Kuo's cousin Shen Pi was the magistrate of Ningguo, after careful investigation, he decided to rebuild it. He painted the terrain into a picture and presented it to Jiangdong Transportation Commander Zhang Yi and judge Xie Jingwen. After reading it, the two agreed and reported it to the court.

However, some people in the court objected.

A cough above and a thunder below becomes thunder.

So many officials in Jiangdong opposed it. His younger brother Shen Kuo was there, and wrote "The Picture Records of Wanchunwei" and "Five Theory of the Whirlpools". In the end, the court agreed.

The three of them recruited 14,000 civilians from the surrounding eight counties. After more than 80 days, they built a large dike, and obtained 1,270 hectares of land, which also opened the curtain for the construction of a large dike in Chinese history. However, it has not really started yet, and they have to wait for Wang Anshi to come...

So I was happy at that time, and even Song Renzong personally named Wanchunwei. Then everyone forgot.

Han Qi said: "Colle all the archives of Wanchunwei together."

The officials went down to find the archive.

Han Qi asked again: "Wang Ju. Have you been to Jiangnan?"

"When did Xiaguan go to Jiangnan? I haven't even heard of Wanchunwei."

Han Qi was stunned on the spot and asked for most of the day: "How do you know?"

"Xiaguan is in Huachi County and saw many maps. Compared with the terrain, how could he not know? Can't Han Gong see it?"

"I, I..." Han Qi almost choked to death.

The officials found the relevant archives together, including the two articles written by Shen Kuo and related memorials. However, the Shen brothers were also afraid, so after building Wanchunwei, they did not mention the construction of thewei again.

However, how many lakes are there in Jiangdong?

"Jiangdongwei, Jiangdongwei," Han Qi murmured and asked again: "Then how to control the Yellow River."

But this time he became much more cautious.

"Han Gong, the subordinates also luckily heard some strategies for the imperial court about river management, but thought it was inappropriate. When the founding of the country, the Yellow River was still the way of the Eastern Han Dynasty. Wang Jing chose this river path very cleverly at that time, so no major incident happened in eight hundred years. However, the water and soil destruction of the upper reaches was very serious. For example, Dafeichuan, which used to be rich in water and grass, is now unable to live in and survive. For example, the ancient road from Helan Mountain to Juyanhai. This road is about to disappear gradually. Therefore, the Yellow River has become a hanging river. After so many years of accumulation, the Yellow River has become a hanging river. The crisis in the Tang Dynasty is not serious, but the hanging river trend is more obvious when it comes to our dynasty, so the river disasters continue. But why do we often attack from Mengzhou to Yunzhou? Looking down from Yunzhou, there are mostly mountainous areas. Only this section is a plain area, and the hanging river is the most obvious, so it often occurs from this section."

"You mean you want to rebuild a river?"

"That's unlikely. How many mountains and ridges are there on both sides? Han Gong, I just follow the current inaction and make a decision. Now the Yellow River is divided into two rivers and into the sea. The river in Nangu is the old Yellow River road in front of Wang Jingzhi River. It is shallow and narrow, and will soon be destroyed by the river sand. All rivers will enter the sea along the Beigu River. However, the water discharge of the Beigu River is limited, so it began to flood and cause disasters again. Not to mention the military significance of the lakes after the disappearance, it will continue to flood and become after the disaster.

As a result, the river water is flooding and the mud and sand continue to settle. Soon after, the low-lying Hebei terrain was quickly raised. The river water cannot be leaked, so it will find its own way. Where can it find it? There is only one way to go, that is the old way of the gap during the Guangwu period. Going to the Huai River and entering the sea from Haizhou. Even the Huai River is raised. With the water level of the Huai River itself, the entire fertile Jianghuai region will be trapped by floods again. Then continue to go south and descend the Yangtze River from Yangzhou."

Wang Ju said lightly, but everyone's faces became less beautiful.

If that were the case, the Song Dynasty would be miserable, and even the entire Jianghuai and Hebei would not be at peace.

Wang Ju said again: "This is not the most terrifying thing. When I talked to Zhang Zhifu, I once said that releasing water and silt fields means that the river water is in a gentle state, so that the silt will settle down. But when it is flooded, it is not like this. The water is flowing, and only sand is settled down, and the silt will continue to run downstream with the flood water. Not only that, it also scrapes away the thin soil on the ground in Henan and Hebei. It won't take long for the entire Central Plains to become a large saline-alkali land. Our dynasty has established its capital in Tokyo, and then a great disaster will come over the Song Dynasty."

This is an assumption, provided that the Song Dynasty continues to do nothing, and the Song Dynasty can continue to establish its country for three hundred years and four hundred years.

However, would Han Qi and others think that the Northern Song Dynasty will perish in decades?

In fact, the Yellow River did not harm the Song Dynasty in history, but it harmed the Jin Kingdom. It made the Jin people miserable.

"Then your sage is..."

"One is a fantasy, starting from the Tubo region, banning cutting, nomadic landslides, and afforestation, which reduces the proportion of sand in the Yellow River, but this is unlikely. One is a more realistic method. The strategies of the masters could not be adopted before, and they were divided into two sections. One is to start from Sanmenxia and end until Yunzhou, and build Yuedi and Ludi along the riverside."

Wang Ju said, and took out two more drawings.

"Their function is to rinse the sand. The worst time of sand accumulation is not during the flood season. At that time, the water flow is fast, not during the accumulation of sand, but rather to scrape sand, leading the sand along the river to the sea. The sand accumulation season is from late autumn to early spring. The water flow is small and the water flow is flat, so the river sand quickly settles. Therefore, Xiaguan designed these two embankments and built them outside the Yellow River. In fact, it is the same principle as the water dam. During the flood season, the river water is flooded with rays of embankments and moon embankments and continues to rush towards the sea. However, when the river water is dry, these embankments are exposed to the water surface, which will bind the river water and narrowly, making the river water flow faster, and continue to drive the mud and sand to the sea."

"It seems to make sense," Ouyang Xiu's eyes shined.

Why did he write a letter to Liutahe at that time, but the court did not adopt it, which was right, but Jia Changchao’s method was not a solution, and Ding Du was not right if he did not do anything, and Wenfu and Liutahe were not even better. So what strategy should we use? If we don’t work in the east or the west, we can’t do it. Do you continue to argue? So we just pretended that Ouyang Xiu’s book was fart.

It was this time that Ouyang Xiu and Wen Fu walked farther and finally got closer and closer to Han Qi.

But from the bottom of his heart, he also wants to solve the problem of the Yellow River.

"Mr. Ouyang, this is the opinion of the Xiaguan family. It's just a throw-in to attract jade."

"Continue to talk about it, what should I do after passing Yunzhou?"

"After passing Yunzhou, you cannot walk the old path of the early Song Dynasty, nor the ancient path that is now. However, there is a new path, that is Jishui. If the site is properly selected, just dig a new canal of thirty or forty miles, and the water of the Yellow River can be injected into Jishui. This project will not be too big, but the embankments on both sides of the Jishui River must be re-strengthened, and the Jishui itself must be dredged and deep. The water of Jishui comes from Wuzhang River and Liangshanpo, with a large amount of water and clearer river water. As long as the Yellow River injects Jishui, the Jishui will continue to impact the river sand. The Yellow River's disaster can be solved by more than half, and there will be no major harm for at least three or four hundred years."

"This project is quite large," said Lu Gongbi.

Wang Ju didn't know him, so he said, "This man, this is a river management. Did the drawings cure the river? Just like Wang Jing's river management, he almost dug a new section of the river that hundreds of miles long. Isn't it a larger project than this project?"

Zeng Gongliang sighed and said, "The country has suffered disasters in recent years and has financial difficulties."

Wang Ju didn't actually say much. This painting painted almost half of the Song Dynasty, but the draft mentioned only did not mention the details. But this draft is already amazing enough. Especially this strategy.

However, the imperial court has finance to govern the river.

Wang Juzheng was waiting for him to say this: "Mr. Zeng Gong, the same is true for re-Zheng Guoqu. If you give your subordinates enough support, including manpower, material and financial resources, you can do it. But without sufficient financial resources, how can you re-built Zhengguoqu?"

But Wang Ju was saying in his heart that Han Qi asked me to rebuild the Zheng Guo Canal, but I was not stupid where the money was. God knows what kind of monsters would cause after the cultivation was completed. But the problem is that Wang Ju really wants to jump down this pit... (To be continued, please search for Astronomy, novels are better, updated and faster!
Chapter completed!