Wang Ju took out another painting.

In fact, as long as you see the painting, ninety percent of the ministers already understand.

In addition to the Pearl River Delta, the two Guangxi are mostly mountainous terrain, and the streams and rivers in most areas are mainly short, flat and fast, and when the typhoon comes, the flash floods occur, and the rivers surge big, but in the dry season, there is no water. In this case, it is very difficult to build a weir, and the earth weir is not good, and it must be firmly established with a stone weir in order to block the impact of flash floods. Regardless of whether this weir is big or small, even in later generations, many small weirs in Liangguang are still mostly stone weirs.

With the current relationship between the Song Dynasty and Liangguang, even if there is money, it will not be spent like this.

So Wang Ju changed a method, not to build ordinary weirs, but also to set up dams, located in the small rivers and streams in various mountainous areas, these rivers and streams will not be navigable, so in the middle of the river dam, but not steep gates, so that the water level in the upper reaches will inevitably rise, and then overflow down the dam. The water will continue to drain, but the water level at the dam will be raised, which can be used for irrigation and during the dry season, which also plays a role in storing water. The cost is low and simple and easy.

Don't look at these two small things, if these two paintings are printed and scattered to the hands of the magistrates of Liangguang and Jingnan counties, and they are promoted, at least tens of thousands of hectares of cultivated land can be created.

And it also appealed to Han Qi's appetite.

These two small things can be purchased by the people themselves, and they don't need to pay a penny from the state.

Qian made Han Qi miserable, and he didn't dare to speak out, otherwise I don't know how many people impeached him.

"Yes, yes, it's a good measure, go on," Han Qi said.

It's really good, even Peng Siyong has nothing to say, the people take food as the sky, how much "food" will they get when these two things appear.

Wang Ju picked up the brush again and started from Dongting Lake. dragged it all the way to Jiangning, and then said: "The ancients called this piece Jiangdong, so what Xia Guan said is the second one." Jiangdong Wei. ”

"Waida?"

"Gong Zhang, it's not Waitian. It's a polder, and the soil is in the polder. ”

"What's the difference?" Zhang Fangping asked puzzled.

"Wai Tian refers to the Taihu Lake area, also called Taihu Lake Wai, from the Tang Dynasty, to Wu Yue Qian's family wantonly encircled the lake for arable land, from the southeast has become the most important granary of our dynasty. But further west, there were still a large number of Hulang, including the Taiping army. Wuwei Army, Hezhou, Shuzhou, as well as Poyang Lake, Dongting Lake and Guyunmeng Daze area. It is also a circle of lakes for fields, but the two forms are different. The southeast is susceptible to the sea breeze, especially when autumn comes, and autumn is strict, but because it is close to the sea, it comes and goes quickly. The form of Jiangdong Wei is different. They are far from the mouth of the sea. It also takes time for the water to flow, just like the battle of Dashun City, where the dead bodies floated to Jingzhao Mansion after more than 20 days. ”

"Don't talk about that." Zeng Gongliang said.

"Zeng Gong, Xia Guan is just an example, the actual flow of Huachi water and Beiluo water is still relatively fast, but the flow of the Yangtze River is more gentle. Therefore, from the arrival of the spring flood, the water level of the Yangtze River gradually rises, and the water level will not go down until after autumn. Therefore, its flood season is mostly in summer, and there are floods for several months, so it is distinguished by wei and wei. ”

Wang Ju remembers reading history books when he was a child, and he couldn't understand many things. For example, Wu Zixu passed Zhaoguan, but the mountain in Zhaoguan was actually very short. There are no bad mountains around, so why do you have to go through that pass?

and Cao Cao went down to the south of the Yangtze River. Why do you have to build a warship? It seems that the Yuan people went south and the Qing people went south, and there was no training of the navy. There is such a good place as Jiujiang, why is Bai Juyi said to be a humble and wet place?

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

The reason for this is Jiangdong Wei.

Since the Shen Kuo brothers developed Wanchun Wei, the Northern Song Dynasty was forced to build polders on a large scale due to population pressure, and the lakes and swamps became Pingchuan. But during the Three Kingdoms, the polders that came there were full of lake swingers, how could Jiangnan be taken without a water army?

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

"I see, if that's the case, wouldn't these polders be underwater for half a year?"

Not underwater, but the river is higher than the polders.

"Exactly, that's why you have to build a polder to cultivate."

"What if the rainy season causes waterlogging?" Zeng Gongliang said. He is a native of Fujian and knows the weather in the south.

"This is also easy to solve, first of all, there must be a large number of ditches and ponds in the polder to store water, and then let the people scoop up the ditch and pond silt, so that the cultivated land is raised, and some drainage and irrigation measures are set up, and at the same time, the south of the Yangtze River is planted with rice, as long as it is not completely submerged, it will not affect its harvest. But Zeng Gong, these are fertile soils that have been accumulated for hundreds of millions of years, and once they become cultivated land, it is possible to produce five stones and six stones per mu of rice in one season. ”

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

"Ouyang Gong, please believe. However, there is one, the enclosure and the encirclement can be, the river must be kept unblocked, a certain amount of deep lake water storage must be retained, the rainy season in the south is long, once there is a lack of water storage lake, the river is not smooth, it is another disaster. ”

"Wan Chunwei," Han Qi said.

"That Wanchunwei in Taiping Prefecture?" Zeng Gongliang also thought about it.

This happened in the sixth year of Jiayou, Wanchun Wei was built in the Southern Tang Dynasty, but it was broken in the Song Taizong period, and it seems that some people were drowned, so this Wei was idle and no one cared about it. It wasn't until Shen Kuo's cousin Shen Pi served as the magistrate of Ningguo that after careful investigation, it was decided that it could be rebuilt, and he drew a map of the terrain and presented it to Zhang Yi, the Jiangdong transit envoy, and Xie Jingwen, the judge. After reading it, the two agreed and reported it to the court.

However, there were objections in the court.

There was a cough from above, and there was thunder below.

As a result, many officials in Jiangdong objected, and it happened that his brother Shen Kuo lived where he was, and wrote "Wanchun Wei Tuji" and "Five Sayings of the Polder". In the end, the court agreed.

The three of them requisitioned 14,000 people from the eight surrounding counties, and spent more than 80 days to build a large polder, gaining 1,270 hectares of land, and also opened the curtain of building a large polder in Chinese history. But it hasn't really started yet, and the real start has to wait for Wang Anshi to come......

So I was happy at the time, and even Song Renzong personally named it Wanchunwei, and then everyone forgot about it.

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

The parishioner went down to find the archive.

Han Qi asked again: "Wang Ju, have you been to Jiangnan?" ”

"Han Gong, when has Xia Guan been to Jiangnan. Even Wan Chunwei hadn't heard of it. ”

Han Qi was stupid on the spot, and asked for most of the day: "Then how do you know?" ”

"Xiaguan is in Huachi County and has seen many maps. How can you not know the topography? Can't Han Gong see it? ”

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

The hall officials found the relevant archives together, including the two articles written by Shen Kuo, as well as the related memoranda. However, maybe the Shen brothers were also scared, and after the construction of Wanchun Wei, they did not mention the matter of building the Wei again.

However, how many lake swingers are there in Koto.

"Jiangdong Wei, Jiangdong Wei," Han Qi muttered, and then asked, "Then how to control the Yellow River." ”

But this time he was much more cautious.

"Han Gong. Xia Guan also luckily heard some of the imperial court's strategies for river control, but thought that they were all inappropriate. At the time of the founding of the People's Republic of China, the road of the Yellow River was still the road of the Eastern Han Dynasty King Jingzhi, and Wang Jing chose this river channel very cleverly at that time, so there was no major event in 800 years. However, the upstream water and soil are very badly damaged, such as the Dafei River, which used to be rich in water and grass, is now inhabitable and uninhabitable. Another example is the ancient road from Helan Mountain to Juyanhai, which is about to disappear. Therefore, there is more and more sediment in the Yellow River, and after so many years of accumulation, the Yellow River has become a hanging river, and the crisis in the Tang Dynasty is not serious. But when I arrived towards the hanging river, the trend was more obvious, so the river disaster continued. But why do you have more seizures from Mengzhou to Yunzhou? Looking down from Yunzhou, where there are many mountainous areas. Only this section is a plain area, and the trend of the hanging river is the most obvious, so it mostly occurs from this section. ”

"You mean you want to rebuild a river?"

"That's unlikely, how many mountains and mountains are there on both sides, Han Gong, I just reasoned down from the current inaction. Now the Yellow River divides into two rivers and flows into the sea. The Nangu River is the old channel of the Yellow River in front of the Wang Jingzhi River, which is shallow and narrow, and will soon be annihilated by the river sand, and all the river water will flow down the Beigu River into the sea. However, the discharge of water from the Beigu River is limited. So it began to flood again. Not to mention the military significance of the disappearance of those lakes, let's talk about the consequences of continuing to flood. The river is flooding, and the sediment continues to settle. Soon after, the low-lying terrain of Hebei was also quickly raised. The river cannot be drained, and it will find its own way, where to find it? There is only one way to go, and that is the old road of the gap in the Guangwu period, down the Huai River, from Haizhou into the sea. Even if the Huai River is raised, and the water level of the Huai River itself is added, the entire fertile Jianghuai region will be trapped by floods again. Then continue south, from Yangzhou down the Yangtze River. ”

Wang Ju said lightly, but everyone's faces became not very good-looking.

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

Wang Ju said: "This is not the most terrible, when I talked to Zhang Zhifu, I once said that the release of water and lake silt to fertilize the field, which means that the river water is in a gentle state, and the silt will settle down." But when it came to flooding, it was not like this, the water was flowing, and all that settled was sand, and the silt continued to rush downstream with the flood. Not only that, but also scrape away this thin soil on the ground in Henan and Hebei, and it will not be long before the entire Central Plains will become a large saline-alkali land. The capital of our dynasty was set in Tokyo, and it was then that a great catastrophe befell the Great Song Dynasty. ”

This is an assumption, provided that the Song Dynasty continued to inaction, and second, that the Song Dynasty could continue to be established for three hundred or four hundred years.

However, would Han Qi and others have thought that the Northern Song Dynasty would perish in a few decades?

In fact, in history, the Yellow River did not harm the Song Dynasty, but it harmed the Jin State. Forced the golden man hard.

"Then your plan is ......"

"One is utopian, starting from the top of Tibet, banning logging, banning nomadism, and wantonly afforestation, so that the proportion of sand in the Yellow River will decrease, but this is unlikely. One is a more realistic approach. In the past, the strategy of the princes could not be adopted, and it was divided into two sections, one was to start from Sanmenxia and go to Yunzhou, and build the moon embankment and the wisp embankment by the river. ”

Wang Ju said, and took out two more drawings.

"Their function is to bundle the water and wash the sand, and the time when the sand accumulation is the strictest is not in the flood season, when the water flow is fast, not the sand accumulation, but the sand is scraped, and the sand is carried down the river into the sea. The sand accumulation season is between late autumn and early spring, when the flow of water is small and the flow is gentle, so the river sand settles quickly. Therefore, the lower officials designed these two kinds of embankments, and built them on the outside of the Yellow River, but in fact they are the same as the water dams. During the flood season, the river floods over the dikes and moon dikes and continues to rush towards the sea, but during the dry season, these dikes are exposed to the surface of the water, and the river water is tied up and narrowed, making the river flow faster, and continuing to drive the sediment to the sea. ”

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

Why did he write to Liutahe at that time, but the court did not adopt it, which is good, but Jia Changchao's method is not a way, Ding Du's inaction is not right, and Wenfu and Liutahe are even worse, so what strategy is used? The east can't work, the west can't work, and you can't help it, do you continue to pull the skin? So he thought Ouyang Xiu's book was a fart.

It was this time that Ouyang Xiu and Wen Fu went far, 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.

"Ouyang Gong, this is the words of the lower official's family, and saying it is just a brick-throwing."

"Go on, what should I do after Yunzhou?"

"After Yunzhou, you can't take the old road of the early Song Dynasty, and you can't take the ancient road now. However, there is a new road, that is, Jishui, if the site is properly selected, as long as a new canal of thirty or forty miles is dug, the water of the Yellow River can be poured into Jishui. This project will not be too big, but the embankments on both sides of the Jishui River must be reinforced, and the Jishui itself must be dredged deep. As long as the Yellow River is injected into the water, the water will continue to impact the river sand, and the trouble of the Yellow River can be solved by more than half, at least three or four hundred years without major harm. ”

"It's a lot of work." Lu Gongbi said.

Wang Ju didn't know him, so he said: "This duke, this is to control the river, alas, can you draw drawings to cure the river?" Just like Wang Jing's control of the river, he almost dug up a new section of the river for hundreds of miles, isn't it more than this project? ”

Zeng Gongliang sighed and said: "The country has suffered many disasters in recent years, and its finances are embarrassed. ”

Wang Ju actually didn't say much, this painting painted almost half of the Song Dynasty, but only said the draft, not the details. But this draft is amazing enough. Especially this policy.

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

Wang Juzheng was waiting for his words: "Zeng Gong, it's the same thing to re-Zheng Guoqu, if you give enough support to the lower officials, including manpower, material and financial resources, the lower officials can do it." But there are no sufficient financial resources, so how can the lower officials rebuild Zheng Guoqu? ”

But Wang Ju said in his heart, Han Qi asked me to rebuild Zheng Guoqu, but where is the money, I am not stupid, God knows what kind of demon moth will be caused if I go down to repair it. But the problem is that Wang Ju really wants to jump down this pit...... (To be continued) R655