Chapter 956

Cheng Yaojin's laughter surprised Li Er and others.

"Wow, ha ha, your majesty and princes, what are you doing here? Ziyou, since he knows a lot about Tubo, is he afraid that he has no way to solve the plateau reaction? Ziyou, don't sell the key and come quickly!"

Cheng Yaojin's words made Li Er and others slightly stunned, and then nodded their approval.

Since Li's master is the Taoist ancestor, there's nothing to worry about.

Seeing that everyone looked at him, Li forgot to worry and smiled and touched his nose: "uncle and Duke, in fact, there is no special medicine for altitude sickness. The only way for the army to March and fight on the plateau is to adapt."

Although Rhodiola can effectively prevent altitude sickness, it is obviously impossible for hundreds of thousands of troops to have so much drug supply.

In this way, the only solution is to establish a training base on the plateau and let Tang Jun slowly adapt to altitude reaction.

Li Er asked, "Ziyou, tell me in detail how to adapt?"

"Uncle, due to the terrain on the plateau, the oxygen content in the air is low, which can not be changed even if I respect him. Therefore, if the army wants to fight on the plateau, it must slowly adapt to the plateau climate. Generally speaking, the army can gradually adapt to the plateau reaction after about three months of adaptation on the plateau. Although it will still be short of breath and palpitation during vigorous exercise But at least compared with the Tubo people, the gap will not be too big. "

Li Er frowned again: "Ziyou, I know your way, but where can I find a plateau in the Tang Dynasty to let the soldiers adapt?"

Li forgot to worry and pointed to the map with a smile: "uncle, Tuyuhun is the best place to train troops. Tuyuhun is located on the edge of the Qinghai Tibet Plateau, and many areas already belong to the plateau. As long as Uncle sends a large army to capture Tuyuhun and bring it into the territory in the future, he can train troops here, and it will be easy to reach the hinterland of the Qinghai Tibet Plateau from Tuyuhun in the future!"

In history, after Tuyuhun was defeated by the Tang Dynasty, it was picked up by Tubo and let Tubo swallow Tuyuhun.

Li forgets worry and knows history well. Naturally, he will not make such a mistake.

Li Er and Fang Xuanling immediately gathered together in front of the map and carefully figured out the terrain of Tuyuhun. They already began to think about how to annex this land.

Li Qieyou continued, "uncle and Duke, there are still two difficulties in attacking the plateau. One is the temperature, and the other is the difficulty in supplying the army."

"Ziyou, tell me in detail."

"Uncles and princes, I don't know if I've heard a word. It's very cold at high places?"

Li Er and others looked at each other and shook their heads blankly.

What Li forgets to worry about is nonsense, which comes from Su Dongpo's "water tune singer". Li forgot to worry about plagiarizing this noun in the future. Of course, Li Er and they haven't heard of it.

"Uncle and gentlemen, do you have a long-term view? Do you think it's colder at the top of the mountain?"

"Yes, that's true." the crowd still didn't understand what Li forgot to say.

"In fact, the higher the terrain, the colder it will be. Master said that if the terrain is 1000 meters high, er, it will be much colder."

Li forgot to worry about saying here, but I don't know how to explain it.

For every kilometer above sea level, the temperature drops by six degrees. The Qinghai Tibet Plateau is 3000 to 5000 meters above sea level, and the temperature is more than ten or twenty degrees lower than that of Chang'an.

However, since ancient times, China has no concept of temperature. It only uses cold, cold, cool, warm, hot and hot to express the temperature difference range.

He was interested in introducing the temperature to the public, but without a thermometer, it was too hard to explain the temperature with empty teeth.

To make a thermometer, you must have glass

After thinking for a long time, Li forgot to worry about how to express the temperature. He could only scratch his head and continued: "let's say that if Chang'an arrived on the plateau in midsummer, it would be just like early spring. If it was winter, it would be extremely cold on the plateau, just like the winter in Liaodong."

"Oh? What else? If so, it would be trouble." Li Er and others frowned again when they heard the speech.

Having been on the battlefield for a long time, they naturally know how troublesome it is for the army to fight in winter.

Especially in the early Tang Dynasty, the means to keep out the cold were relatively scarce.

"Uncles and princes, it's not difficult to protect the army from the cold. Fill clothes with cotton and make cotton padded jackets."

Li Er and others were foolish again.

Gao Shilian couldn't help shaking his head: "Ziyou, aren't you confused? How can the army afford to equip with such expensive jackets?"

Li Er and others also nodded one after another. They felt that Li forgetful was really not in charge of the family. They didn't know that daily necessities, rice, oil and salt were expensive.

The reaction of the crowd was naturally expected by Li forgetful.

In history, although cotton has long appeared, it was not really popularized in China until the Ming Dynasty.

Even up to the late Tang Dynasty, cotton was still rare flowers and plants in the gardens of many wealthy families in the north.

In the early Tang Dynasty, cotton was naturally available, and even once served as a tribute to the court hall.

But because the quantity is scarce, it is not easy to spin, and the price of cotton and cotton cloth is quite expensive. Just like when Su Changqing first met the empress changsun in the ready-made clothes shop and recommended cotton clothes to her, the price was not affordable for ordinary people.

At the beginning of the Tang Dynasty, wearing cotton padded jacket was more popular than wearing mink and velvet.

Therefore, Li Er and others will feel that Li forgetting worry is really unreliable.

Li forgot to worry and smiled. He went to the map again, pointed to the direction of the western regions and said, "uncle and Duke, although we don't produce cotton in the Tang Dynasty, the western regions are very suitable for cotton planting. As long as we pocket Gaochang, kuci and other countries, we can vigorously promote cotton planting. After a few years, cotton is no longer a rare thing and can be used to supply the needs of the army."

"As long as our Tang army is equipped with enough cotton padded clothes, whether my uncle wants to attack Liaodong or Tubo, the severe winter is not a difficult problem. Therefore, my nephew dared to speak before and can solve the problem of keeping the army warm in winter."

The more Li forgets to worry, the more excited he becomes. He has a feeling of playing strategy games in future generations.

"Uncle, gentlemen, my nephew's strategy for Tang Dynasty is to take the western regions first! After conquering the western countries, he spent several years managing the western regions and planting a large number of cotton. Then he conquered Tuyuhun and trained here to prepare for the attack on Tuyuhun. As for Koguryo, it's not enough to be afraid. As long as uncle is willing and cotton clothes can be equipped with a large number of troops, he can attack Liaodong at any time and serve our Chinese people My disciples revenge! "

"In addition, uncle can send detailed spies to infiltrate Koguryo, Tubo and other places. Learn more about the climate, geographical environment, cities and towns of Tubo and other places, so as to open the way for the army to fight in the future!"

"As for the supply of the army, I have to be taught by my master. I have learned some methods of making military grain that can be eaten by the army. These military grains can be preserved for a long time and taste delicious. It is most suitable to satisfy hunger..."

Li Qieyou was so excited that he poured out what he knew and thought.

This long speech fell on the ears of Li Er and others, but it was enlightening. It was like one thunder after another blowing in their ears, shaking everyone dizzy.

For a long time, Li Ercai suddenly smiled.

"Good! Good! Ziyou really has the ability to govern the country and the world! This strategy is very much in line with my heart! I'm very lucky to have Ziyou help! Xuanling, a decree is proposed to seal Li forget you of Huxian County as the prince of Fufeng..."