Before Li Zheng could speak, Pei Xingjian said again: "But it makes sense for the teacher to count downstream rivers. According to the teacher's drawings, it is necessary to build a river embankment upstream. After the river embankment is built, you must pay attention to the width of the river channel downstream to determine how high the river embankment is. If it is not done well, it is easy to cause floods downstream."

Pei Xingjian is quite talented.

The relationship between the river channel and the dam can be seen at a glance.

Li Zheng said to Pei Xingjian: "Actually, this is a small dam."

Pei Xingjian didn't know about the dam, but he could roughly understand the meaning after looking at the drawing, and said: "If this is built, it can not only be used to store water, but also store water during flooding and release water during drought, which is indeed beneficial to farming."

After saying that, Pei Xingjian put away the drawings and handed them to Li Zheng and bowed and said, "Teacher, the student is willing to take people to help the teacher measure the upstream river."

Li Zheng still handed the drawings to Pei Xingjian, "I'll hand this drawing to you. If you have any needs, just tell me, you can choose the construction address."

"this……"

Pei Xingjian said hesitantly: "The students think it's okay to measure the river, but they may not have much experience in building it."

Li Zheng smiled and said, "It's always shallow to get what you get from paper. You have to try everything before you get experience. You have been studying in the academy and have not practiced the knowledge you have learned. This is not possible."

Seeing that Pei Xingjian was a little nervous, Li Zheng said again: "This way, you can ask Yan Liben to help you."

Pei Xingjian bowed and said, "The teacher dared not refuse the teacher's instructions, but the students need some things."

"explain."

Since Pei Xingjian has this idea, Li Zheng is certainly willing to test how many abilities these children have now.

Children can do simple math, physics and chemistry knowledge. Li Zheng is confident that these children in his academy can solve all the problems in the nine chapters of mathematics.

And this guy Li Chunfeng kept calling the children to know mathematics in the academy.

These children now have a poor application and integration of various operations.

These children need to be given an opportunity to display their knowledge.

Pei Xingjian bowed and said, "Students felt that they needed some classics in the court. The students heard from Teacher Chu Suiliang's lecture that there was a man named Li Chun in the Sui Dynasty. He was a bridge master. Now all kinds of classics he built the bridge are in the Imperial College. Students want these classics."

Li Zheng smiled and said, "No problem."

Pei Xingjian held the drawings as tall as himself and said, "Please ask the teacher to give the students some time."

"Okay, if you need anything, you can come to me with any manpower and material resources."

Pei Xingjian nodded slightly and left.

Li Zheng stood there, feeling a little worried at this moment.

The land is not enough.

This more than 10,000 acres of land in Jingyang is not enough to squander yourself.

If you don’t rebel, the land in the whole world belongs to mine. That would be great, well! It’s really beautiful.

Back at the horse circle, Li Zheng spread out the land in Jingyang today. Now the Niu Jinda family's territory has belonged to him, and the land in the southeast of Jingyang has expanded to Cheng Yaojin's family.

It borders Cheng Yaojin's fief fief.

The east side of the Jingyang River channel connects Dongling to Weishui.

The piece of land that intersects the Weishui River and the Jingyang River is very good and also a very fertile piece of land.

The Weishui River starts from east to west, and starts from Lintong to divide two tributaries, one is the Jingyang River in Jingyang.

One is the Ba River south of the Wei River, and then several tributaries were divided into westwards.

Looking at the current water conservancy branch, we have to say that the ancients were superb.

The Zhengguo Canal built by Zheng State back then opened several rivers in Guanzhong from the central part of the Guanzhong Plain to the north to the Neijing River in Zhongshan.

It has created a fertile land and benefited future generations.

It is a good idea to build a dam from Gaoling, and there will be a Gaoling Reservoir in later generations.

Li Yi's mansion walked and said, "Chang'an Order, General Feng sent another 300,000 stones of old grain."

“Have all handed over?”

"Okay, it's settled."

Li Zheng nodded slightly, pointed to Gaoling on the map and said, "Whose territory is our east?"

Li Yifu glanced at it and said, "It is Qin Qiong, the fief of General Qin."

"General Qin Qiong..." Li Zheng thought about it and said, "It seems that he is not very familiar."

Li Yifu smiled bitterly. Chang'an Ling has been living in Jingyang for a long time and has never left the village for many years, so he is not familiar with many people.

Li Zheng said to Li Yifu: "You send someone to give it to you General Qin Qiong, and I will buy his land."

Li Yifu nodded, "I'll make arrangements now."

As soon as the man left, Xu Jingzong came, "What happened to Chang'an Order."

Li Zheng took his eyes off the map and said, "Tell me."

Xu Jingzong whispered: "They started to check and satisfied. After Changsun rushed to Yumen Pass, he immediately sent someone to Tubo to see Songzan Gampo. He found out that Songzan Gampo also told Changsun Chong that something satisfactory."

Li Zheng sighed, "This Changsun Chong is really not calm."

Xu Jingzong nodded, "Chang'an Order, what should we do next?"

"Pour me a cup of tea."

"What?"

Li Zheng said to Xu Jingzong, who was a little surprised, "I said I'll pour me a cup of tea."

Xu Jingzong then came to his senses and poured Li Zheng a cup of tea.

Li Zheng took the tea poured by Xu Jingzong, and it was almost summer. "The weather is getting hotter and hotter now."

Xu Jingzong whispered: "Jingyang is pretty good, but Chang'an is getting hotter and hotter. Many people are starting to stockpile saltpeter and prepare for ice making."

Li Zheng shook the fan in his hand and said, "Are people still alive?"

"What?"

Xu Jingzong was a little unturned.

Li Zheng said: "I mean, are you still alive if you are satisfied?"

"It should be alive. There is no news about it still in Tubo."

It was so tiring to chat with Chang'an Ling. Xu Jingzong wiped the sweat from his forehead, "I am afraid that Songzan Gampo will hand over the person to Changsun Chong."

After Xu Jingzong finished speaking, he looked at Li Zheng's expression.

There seemed to be no nervous expression at all.

Even a little calm.

Li Zheng said: "When you buy it, have you done it clean?"

Xu Jingzong bowed and said, "Don't worry, Chang'an Order, I don't know anything. Even the Taichang Temple Minister doesn't know that he is the one who bought it."

"You did it all, even if you found out, it's your business. It shouldn't have much to do with me." Li Zheng said.

"I am loyal to Chang'an, and I have always been unparalleled." Xu Jingzong said immediately.

"I haven't said anything yet. Why are you doing so nervous?" Li Zheng said.

"Is that true?" Xu Jingzong wiped the sweat from his forehead again.

It has not yet entered the summer, and Jingyang is in a good location, even if it is in the summer, it will not be too hot. It is a good place to escape the summer heat, especially with a forest area around Jingyang as a barrier.
Chapter completed!