The governor of Wuyuan County said somewhat embarrassedly, "I have been driven away by you."

Liu Tan was filled with questions: "What? Why are you driving them away?"

The governor of Wuyuan County was very nervous: "He has strange eyebrows and eyes, and he talks a lot of weird things. I thought he was talking nonsense, so..."

Liu Tan's head hurt from hearing his dialect, and he couldn't help asking, "Are you from Yizhou?"

Well, the year before he traveled through time, the Bashu area was divided into Yizhou. This Sichuan flavor is so Yizhou-esque.

The governor of Wuyuan County was surprised: "How did Your Highness know this?"

Liu Tanxin waved his hand tiredly and said, "Bring that person back."

The people of Bashu are too stubborn. If you go to the north to be an official, even if you don't learn the local dialect, you should at least be assimilated, right?

Liu Tan remembered that this Wuyuan County Magistrate had been the county magistrate for nearly twenty years, and his accent had not changed at all!

Seeing that the Wuyuan County Magistrate wanted to speak, Sang Qian couldn't help but cough lightly and said, "Then... Your Highness, shall we continue?"

Liu Tan was stunned for a moment: "Where was I just talking about?"

His thoughts were originally very coherent, but after being interrupted, he became completely confused and even forgot what he had said before.

Sang Qian reminded him quietly, "Your Highness said that we have little rainfall and severe desertification here, so there are no natural rivers."

Liu Tan then remembered and continued, "Oh, yes, the number of times the Yangtze River has changed its course..."

Liu Tan was stuck for a moment. He originally wanted to say that the Yangtze River changed its course rarely, but suddenly he remembered that he had forgotten when the Yangtze River changed its course, and he was not sure whether the Yangtze River had changed its course at all.

He quickly changed his tone and said, "The Yellow River has changed its course more times than the Yangtze River. The connection between them is actually very easy to understand."

Everyone: ???

They were completely confused by what they heard. In fact, they had already found it very difficult from the very beginning. Under Liu Tan's "intimidation", they knew a lot about the geography within their jurisdiction, but they had no idea about the macro-level connections.

Liu Tan looked at the county governors, who looked at each other, wanting to say something but not daring to, and couldn't help feeling tired: "Don't you understand?"

The county magistrates shook their heads frantically, and Liu Tan felt even more exhausted. "If you don't understand, just say it. If you don't understand now, what will you do if I ask you to control the flood later and you can't come up with a solution? Are you waiting for me to deal with you?"

The governor of Wuyuan County whispered, "We will do whatever His Highness tells us to do."

Liu Tan slowly turned his head to look at him, and asked with a stern face, "Do you all need me to feed you when you eat?"

Sang Qian finally couldn't bear it any longer and said, "Your Highness, managing the Yellow River is not easy. We haven't learned much about it before. Why don't you give us some time..."

Liu Tan took a deep breath. "I can give you time, but how can the people give you time? This year's harvest was poor, and the Emperor exempted the Northern Border from taxes. Will he do the same next year? And the year after? Of all the vassal states, only the Northern Border has been exempted from taxes. Don't I have any respect for myself?"

To be honest, if Liu Tan said that it was for the people to have enough food and clothing, these county governors would not believe it at all. But if he said that it was for face, everyone would understand.

But when you think about it, especially Sang Qian, he came to the Northern Border Kingdom in the beginning to gild himself, but when he was thrown into Xi'an Yang County, he felt that his life was bleak for quite a while.

But there was no way, he could not defeat the King of the Northern Territory. Not to mention him, even his father might not be a match for the King of the Northern Territory. So in order to be able to return as soon as possible, Sang Qian also tried hard to make some achievements in Xi'an Yang County.

Thanks to his efforts, Xi'an Yang County was changing little by little. The feeling that his efforts were rewarded really made him feel good, so he gradually found some fun and developed a competitive spirit, wanting to make Xi'an Yang County the best county in the Northern Kingdom, oh, except for the royal capital.

But now Liu Tan gave him a wake-up call - what's the point of being good in the Northern Border Kingdom? When he returns to the capital, his old father will ask him about the poor harvests and tax exemptions in the county he leads every year, and he will be ashamed.

Not only will he be unable to explain to his father, but when his former friends come back and ask him about it... where will he save face?

At this moment, Sang Qian and Liu Tan had the same mood. The other county governors didn't think it was a big deal. After all, their family was here, so it didn't matter whether they saved face or not.

Then they heard Sang Qian say in a resounding voice, "That's right. We must change the current situation in the Northern Border Kingdom and strive to become the granary of the Han Dynasty next year!"

As soon as Liu Tan finished speaking, he picked up the teacup and drank water. After all, he was the one who talked the most from the beginning to now.

When I heard Sang Qian's words, I almost choked to death!

He placed the teacup heavily on the table and said under the frightened gazes of the other county governors, "Stop talking nonsense and be realistic!"

Liu Tan looked around and felt that if he continued to go deeper, these people might not be able to understand what he said. Finally, he said, "Let's disperse. Think carefully about what I said. Oh, right, we must find that person from before!"

The prefect of Wuyuan County also wanted to find that person at this time. If that person really had some experience in flood control, then he would definitely have a common language with His Royal Highness the King of the Northern Territory.

He didn't expect to be able to control the flood. Frankly speaking, the flood pressure in the Hetao Plain was not very great. Even though the Yellow River often changed its course, it rarely caused large-scale losses of manpower and material resources.

He now only hoped that someone could divert His Highness's attention so that they could be freed.

The county magistrates all ran away in a flash. Liu Tan sighed softly, stood up, returned to his tent, walked over and collapsed beside Gun Gun.

When Miao Rui and Big Gao brought him some snacks, they saw that the postures of the man and the bear were very similar. The only difference was that Liu Tan was rubbing his bulging belly while lying down.

For a moment, neither of them could tell whether Liu Tan was influenced by Gun Gun or Gun Gun was influenced by Liu Tan.

Liu Tan asked, "Have you received any letter from the capital? Any news?"

Miao Rui said, "There are two letters. Your Highness, would you like to read them now?"

Liu Tan waved at him, and then saw at a glance the letter written to him by Lu Xuan, and the other one was from Huo Guang.

Although he knew that Huo Guang must have written to him for serious matters, Liu Tan hesitated for a long time, but in the end, his selfishness prevailed and he opened Lu Xuan's letter.

This time, Lu Xuan's letter was unusually brief, but it made Liu Tan very excited: "A Xuan is back!"

Bi Gao glanced at Miao Rui and held back from saying anything, thinking that this wasn't the little Kunmi's home, so how could it be considered "coming back"?

However, his prince treated the little Kunmi as his own, so they couldn't say anything.

Lu Xuan's letter was brief because he had already returned to the Northern Territory Palace. He also told Liu Tan to be careful when he went out and not to worry.

Finally, I added a sentence at the end of the letter: Waiting for you to come back.

If Liu Tan hadn't still had a little bit of rationality, he would have really wanted to jump up and order his way back to the capital in an instant.

Unfortunately, it was not possible. He had to come up with a simple plan and let these county governors go back and work on it first.

If he were to follow his temper, he would want to solve all the problems before next year's spring plowing.

But he also knew that flood control was no trivial matter. It was normal to take five to ten years, and this was even considered a short period. Not only would it consume manpower and material resources, but the most important thing was that there might not be any effect. He had just started here, and the Yellow River had changed its course over there. Isn't that a shame?

It was just his longing for Lu Xuan that made Liu Tan eager to return home. Originally, he had wanted to let these county governors fully understand the situation of the Yellow River and how to manage it.

No one dares to say that the Yellow River can be completely prevented from changing its course. Even if Liu Tan is really a god, it would not be possible, not to mention that he is not one.

Therefore, local officials must understand water management and be able to make flexible adjustments.

But now... forget it, I'll assign this as homework later and let them learn it slowly. I'll do it myself first!

Liu Tan didn't expect these people to help him much, as long as they listened to him. Fortunately, he went out for a trip, otherwise it would be difficult for him to come up with an effective solution just by relying on the descriptions of his subordinates.

The first thing is to plant vegetation. I have to say that planting vegetation in Hetao is actually easier than in other places. After all, there are sufficient water resources. As long as you have patience and perseverance, and don't plant and cut it down right after, it will be fine.

After writing this, Liu Tan began to think about whether to create the concept of a protected area, send people to patrol day and night, and impose heavy penalties on anyone caught illegally cutting down trees.

This method is actually good, but the only problem is that it requires a lot of expenditure, whether it is planting trees or sending people to patrol.

At that time, the national treasury would need to pay for it. Liu Tan thought about it and put this matter on the pending items - he had to go back and discuss it with Huo Guang.

The second thing is to dig canals. It is best to dig a self-irrigation water system so that farmland will no longer be short of water and the amount of water in the Yellow River can be reduced to the greatest extent.

However, the self-irrigation water network also needs to be designed carefully, otherwise it will be ruined if it is accidentally dug into a swamp.

In order to return to see Lu Xuan as soon as possible, Liu Tan diligently studied the map in his tent.

Although he did not summon the county governors, who among them would dare to let the King of the North work while they just watch?

Especially Sang Qian, who was also very excited for the sake of face. His cultural level was a little higher than that of other county magistrates, but the problem was that there was no course on controlling the Yellow River in his education. So when Liu Tan stopped explaining and started to work on his own, Sang Qian could only watch and understand it by himself.

After Liu Tan had been busy for two days, the governor of Wuyuan County came to him excitedly and said, "Your Highness, I found it, I found it!"

It has to be said that under Liu Tan's high pressure, the elegant speech of the Wuyuan County Magistrate has improved a lot. It is hard for him because he has not changed in the past twenty years, but he has changed a lot in just a few days. I don't know what kind of pressure he has been under.

Liu Tan looked up, somewhat bewildered: "What did you find?"

The governor of Wuyuan County said cautiously, "It is... the person that His Highness asked us to find. We have found him."

Liu Tan thought about it carefully and then realized: "Where is the person? Bring him here. Oh, and where did he come from?"

The Wuyuan County Magistrate said somewhat embarrassedly, "I... don't know either."

Liu Tan was shocked: Did they let me in to see you without even checking my identity?

When the man was brought over, Liu Tan finally understood why the Wuyuan County Magistrate did not check the other party's identity and background, because there was no need at all. The risk factor of this person was too low.