Even if Han Gang is far away in the capital, he still cares about the affairs of Xihe, after all, his foundation is there.

The strategy now implemented in Xihe Road is basically formulated by Wang Shao and him, from the general plan to the implementation rules, Han Gang's hard work is everywhere.

Han Gang also knew that any official who was willing to serve in Xihe Road had great ambitions and would never be willing to be hidden in the shadow of his predecessor. He will definitely do everything possible to make a career to show his talents, win immortal achievements, and not let Wang Shao be beautiful, this matter Han Gang can understand. But if someone acts recklessly and destroys the current stable situation in Xihe Road for the sake of merit, he will definitely not let it go.

It's just that Wang Shao and Han Gang are in Beijing, and Gao Zunyu has recently been transferred to Jingyuan Road as the chief of soldiers and horses.

With the tiger and leopard leaving the mountain, it is not surprising that the newly moved monkeys have some ideas.

After a little bit of making Cai Yanqing calm, old in eunuchs, he can put it away, and he can start from a small place, if it is replaced by Shen Qi, the governor of Qinzhou, he will definitely make a bold move and try to provoke trouble. In the middle of last year, Shen Qi asked to be transferred to Guizhou, Guangxi. During this time, even Han Gang heard that he was teaching soldiers in Guizhou, preparing war ships, sharpening knives Huo Huo didn't know who to take the knife - most of them were Jiaozhi - without any strategic considerations, and in vain for his own merits, Han Gang could only be glad that he went to harm the Jiaozhi people.

However, on Xihe Road, there are still a group of people under Cai Yanqing who are not willing to be lonely, hoping to do something to make them meritorious. Wang Shao is worried about these people today.

The Privy Council has Wang Shao in charge, and if he wants to deal with military affairs related to Xihe Road, Wu Chong can't bypass him. Therefore, what Wang Shao asked Han Gang to do was not to let there be a leak under the door of Zhongshu. In particular, it is necessary to change the system that has already been effective, and it is necessary to directly cut off it from the root.

"Privy rest assured, after Han Gang goes back, he will state his interests to Jiayue, so as not to let people spoil the good situation of Xihe Road." Han Gang assured Wang Shao.

Wang Shao nodded and said happily: "As long as the Chinese book can be consistent, there will be no waves in the Xihe Road." ”

Wang Shunchen and Zhao Long are now the backbone generals of Xihe Road, each of them is divided into towns, Wang Houyue directly transferred from Di Daozhi County to Xizhou Soldiers and Horses Supervisor, sitting in the center of Xihe Road, and can support Minzhou or Hezhou at any time. The lower-level generals and colonels in the army were all under Wang Shao's command back then, and the officials and low-level officials in various states and counties were also able to get in touch with several chief officials of Xihe Road back then.

As long as these foundations are still in hand, and the two governments in the capital support the stability of the road, no matter who is the chief official of Xihe Road, Wang Shao and Han Gang can hold their ground.

After some drinking, seeing that the rain was getting lighter, Han Gang borrowed the carriage from Wang Shao's mansion and went straight to Wang Anshi's mansion. And Wang Shao also has something to do. Since it has rained so heavily today and resolved a bit of drought, he has been promoted to a member of the government, and he will definitely enter the palace to congratulate him, and it is almost time.

Sitting in a rickety carriage, the road was full of the cheers of the people, braving the rain, clapping and shouting in the street.

Listening to the sound outside, Han Gang's heart was also infected with a little joy. It's just that after calming down, I began to think about how to convince my father-in-law again.

With Wang Anshi's character, he will not care about his son-in-law in governance. But after Yan and the palace confronted him, he owed himself a big favor, and even his right to speak in the new party was rising. Once it comes to the matter of Xihe, I believe that Wang Anshi will not and cannot ignore his own opinions. No matter who wanted to set up a horse herding supervisor on Xihe Road, Han Gang could make him put his mind away.

When we arrived at the Prime Minister's Mansion, it was already late and the rain had already stopped. Han Gangjing has been in the mansion since he entered the mansion, and only Wang Yan is there. As soon as Han Gang asked, he realized that his father-in-law had indeed gone to the palace like Wang Shao, first congratulating today's rain, and then asking the Son of Heaven to celebrate his birthday tomorrow as usual.

This birthday, Zhao Ji was originally not prepared. At the head of the great drought, it also consumes the people's fat and ointment to celebrate their birthdays, not only can not show the prestige of the court, but will make the envoys of all countries who enter the congratulatory look down on it, and it is also difficult for the courtiers and the people to discuss. But it happened to rain the day before his birthday, and there was a good omen in the sky, of course Wang Anshi had to lead the table, and tomorrow he would still celebrate the birthday of the Son of Heaven in the Daqing Palace.

There was a delay in entering the palace, and Han Gang sat down and waited for Wang Anshi to come back.

After hearing Han Gang's intention, Wang Yan said: "Since Yukun said that the Xihe pastoral supervisor should not behave properly, that is not the right thing, can the adults still believe you?" ”

Wang Yan's answer was unexpected, and Han Gang smiled: "Why do you have to make a statement to your father-in-law." ”

"Yukun, you're just thinking too much...... That's right. Wang Yan seemed to remember something, "There is one thing I want to ask Yukun about you." ”

"What?"

"I don't know if Yukun, do you think Junchuan is useful?" Wang Yan asked.

"Junchuan Tsuki?" Han Gang vaguely seemed to have heard of it somewhere, but he couldn't remember it at once.

Wang Yan saw that Han Gang didn't know much about this, and hurriedly found an official document with a very rough sketch attached to it.

Han Gang frowned as he looked at it.

The so-called Junchuan loquat is a huge iron rake. Because of the silt and sediment accumulation in the Yellow River, someone suggested to Wang Anshi to build a huge iron rake, hang it behind the boat and pick up the mud at the bottom of the river, loosen the silt and sand accumulated at the bottom of the river, and then let the water wash away. In this way, the riverbed will not be raised year after year.

Wang Yan stared at Han Gang's expression and asked, "Yukun, what do you think of this thing?" ”

Through the sleigh car, plus the invention of thunderbolt cannons, magnifying glasses and other things, Han Gang has become an authority in terms of tricks. Wang Yan wanted to ask his opinion, but Han Gang's answer was to shake his head: "This matter must not be done!" ”

"Why?" Wang Yan asked in surprise, "There is already a precedent for this matter. ”

Exception?!

Han Gang finally remembered when he had heard about this, it was last year that Fang Xing joked about it, and promoted Fan Ziyuan, the Jindi of the Daimyo Mansion - that is, the minister who governed the river - on the Ergu River, where the Yellow River was divided, and requisitioned dozens of boats, dragging a big rake back and forth on the river, saying that it was to loosen the soil and dredge the river.

This is a joke at all, there are too many people who want to agree, since Wang Anshi likes Junchuan Quat, he naturally dares to echo it regardless of the facts.

In fact, there is no actual scene of dredging the river, and it is not the right thing to say that this is not feasible. However, Han Gang can be sure that without the means of river control that have been handed down to later generations, most of them are not feasible.

Han Gang organized his words and asked Wang Yan rhetorically: "Dare to ask Yuan Ze, there is also the Yellow River in Guanzhong, why don't you see Chang'an to increase the embankment every year?" ”

"When the water is slow and urgent, the sediment does not sink." Wang Yan is very clear about this truth, "The purpose of Junchuan is to loosen the sediment at the bottom of the river and let the water flow carry it into the sea." ”

"This is the fate of the wood to ask for fish. The water of the Yellow River, a bowl of water and half a bowl of mud, in autumn, is eight points of sand and two points of water. Dig up the soil today and silt it up tomorrow. Is it impossible to implement it every day? How much labor does this cost?! ”

"Then Yukun, what is your good plan?!"

Han Gang had heard too much about the story of the Yellow River's water control, and he could also give a rough idea of the effective plan in the later world, and now he finally had the opportunity to mention it in front of others, "It's very simple." Go with the flow. Since the water of the Yellow River can bring sediment, it can also carry away sediment - that is, to harness water and attack sand! ”

"Attacking the sand?"

"Build another embankment inside the embankment to forcibly speed up the flow of the Yellow River, so that the sediment cannot be silted. The river is constrained by the inner embankment, so it is natural to cut the river channel deeply. The deepening of the river trough is equivalent to the daily height of the embankment, and the embankment is naturally stable. Even if there is a flood, it will flow in the inner embankment, and more sediment will be washed away. Even if the flood is so large that it overflows the trough, there is a wide shoal enclosed by an outer embankment on the outside to divert the flood. At that time, the sediment accumulates on the wide beach, which is equivalent to increasing the height of the inner embankment. ”

Han Gang's words were unique, and he casually took the pen, ink and paper and drew a sectional drawing, which made Wang Yan think deeply.

Seeing Wang Yan frowning and thinking, Han Gang went further and said: "Set up double embankments inside and outside, and the embankments can be solidified. If the embankment is solid, the water will not overflow and will naturally return to the river channel. Since the river water belongs to the river channel, it cannot overflow and must be brushed down. The reason why the sand is cleansed, the reason why the canal is deep, and the reason why the river leads into the sea are all due to this. ”

Historically, the solution used to control the Yellow River's flooding has been to divert the flood water and slow it down so that the Yellow River does not burst its banks.

"But the more the water is divided, the slower the water will be. The slower the water, the more sediment will be deposited. The more sediment is deposited, the more difficult the river channel becomes. It has accumulated over and over again year after year, and now it has become a boat on the roof. This will only make it more and more difficult to control the water, and the Yellow River will break its banks more and more frequently. ”

Wang Yan thought for a while, and felt that what Han Gang said was extremely reasonable, but he didn't dare to nod his head, but said: "This has to make the foolish brother think about it more, and I have to discuss it with my father." ”

Han Gang said with a smile: "In fact, this is only a palliative technique, after most of the sediment enters the sea, it accumulates over time, and there is also the risk of vicissitudes of the sea, and when the time comes, maybe the river water will be poured back due to the tide." ”

"What about the root cause?"

A voice came from behind him.

Han Gang and Wang Yan got up in shock. Fang just said and listened, and they were all attentive, and they didn't even notice when Wang Anshi came back.

Wang Anshi did it: "Yukun, you go on, what is the way to cure the root cause?" ”

"Just let the Yellow River stop carrying sediment. As soon as the water of the Yellow River is clear, the river channel will not rise every year, but will continue to wash and sink, and it will no longer flood. The sediment in the water of the Yellow River comes from Guanzhong and Guanxi. Further up, it is as clear as a spring all year round. The reason is that there are too many barren mountains in Guanzhong and Kansai, and when there is rain, the muddy water will flow into the river. If the mountains are covered with vegetation, the water in the mountains will be much clearer. ”

The truth of soil erosion, in fact, don't Han Gang say, people who are a little concerned about water conservancy in this era can have a hazy consciousness. As soon as Han Gang said this, Wang Anshi's father and son both nodded.

"Guanxi and Guanzhong are all loess piled up into mountains, and if you want to make the mountains covered with grass and trees, you can't do it for a hundred years. Recently, the son-in-law heard that someone in the court proposed to cut wood from Xihe Road to govern the palace. This must not be done. Nowadays, Xihe Road is rich in vegetation and has little cement and sand. If the trees in the mountains are cut down, the sediment in the river will multiply, and the Yellow River will inevitably become more difficult to manage. ”