Chapter 395: Song’s Weakness Brings Disaster to Who

【The Tang Dynasty said that this is not over yet.

The warm and humid climate is also beneficial to the water resources in the middle and lower reaches of the Yellow River, which also makes agricultural irrigation and fishery resources quite rich.

The shortened cold period prolongs the time suitable for crop growth. There is no need for specific literature on this point. Records can be found in literary works from the Tang and Song dynasties.

The time for wheat harvest in the Tang Dynasty was April, and in the Song Dynasty it was May.

The earliest record of the two-crop system in ancient times was also found in the Tang Dynasty. Although this relatively advanced agricultural technology may not have been fully rolled out, it can still increase the output of grain.

From this, it can be simply concluded that although the temperature has only changed by two degrees Celsius, the impact and changes it has brought can be said to be overwhelming.

It enabled the Tang Dynasty to have the largest cultivated land area and pleasant climate among all dynasties, and thus obtained abundant grain output and natural resources, and finally created the magnificent and prosperous Tang Dynasty with a brilliant history.

But because of this, the waste of natural resources in the Tang Dynasty may also be regarded as the best in all dynasties. 】

At this moment, Liu Bei was really a little dazed.

He stretched his head and looked at the window.

This general's mansion is a relatively well-preserved mansion in old Chang'an. After a simple renovation, you can still see the past grand scene, such as the two glass windows with good lighting and ventilation.

At this moment, through this window, Liu Bei can clearly see that the leaves of the tree in the courtyard outside are not very big at this time, and it is obvious that it has not been long since the leaves were pulled out.

It is now the end of April, but you can still feel the winter chill that has not yet dissipated when you go out.

But at the same time, people in the Tang Dynasty have harvested wheat...

At this moment, Liu Bei suddenly felt no wonder or envy of the abundant martial virtue of the Tang Dynasty. He just wanted this favorable climate.

Just now, after copying it, Kong Ming briefly told him the simple meaning of the climate change map, and Liu Bei also saw it clearly:

What they will face in the next hundred years is the irreversible cooling of the climate, and the environment in the north will only become worse and worse.

Kong Ming whispered that he might have to try to develop the south in advance in the future, and at the same time, he would also build a strong army and strong city in the Yellow River area to deter the Hu people and eliminate their evil intentions.

In this environment, Liu Bei sincerely envied this climate.

Can rice be grown north of the Yellow River? Liu Bei said he dared not even think about it.

However, Kong Ming didn't care to say anything at this time, because he was busy copying the relevant words of the "Manshu".

Pang Tong and Fa Zheng beside him also breathed a sigh of relief, at least now they are not unfamiliar with agronomy.

"This method of farming for double harvest of rice and wheat is called advanced by the younger generation, so it seems that this method will also be used in the future?"

Pang Tong is now very sensitive to these words commonly used in the future, and he attaches great importance to this farming method based on just two words.

Fa Zheng has been in Hanzhong for a long time, and now he has become much darker, but he is more comfortable with agronomy:

"Later generations can succinctly summarize it as the double-cropping system, which shows that this double-cropping method is not limited to rice and wheat."

"And since it can be called the system, it can be seen that it is widely used. The climate in later generations is not as warm as that in the Tang Dynasty. Even if rice can be grown, it must be quite laborious."

"Maybe we can try it in a certain field to see if wheat, beans and other crops can be double-cropped."

Kong Ming nodded slowly and said:

"Then I'll have to trouble Xiaozhi."

The two-cropping system belongs to the method that can be seen at a glance. Its prospects, but they don't have the magical theories of later generations, and it is difficult to understand the subtle principles of various crops.

Therefore, if you want to double-crop in addition to rice and wheat, you can only try it slowly with the dumbest method.

Since Fa Zheng can see it so clearly, just assign it.

Fa Zheng has no objection. To be honest, leaving Hanzhong to assist Xuande Gong to restore Guanzhong is exactly what Fa Zheng wants to do.

After all, he was born in Youfufeng, and was a native of Sanqin. How could he be tired when returning home in glory?

After assigning the tasks simply, Kong Ming felt that he could probably imagine what would happen next.

Such a favorable climate would certainly make it easier for plants to grow, and the population was sparse after the turbulent times in the early Tang Dynasty.

Under such circumstances, it would be difficult for officials of the Tang Dynasty to care about cutting down trees.

And with the change of climate, the consequences of such carelessness quickly backfired on the Tang Dynasty.

The predecessors cut down trees and the descendants suffered, Kong Ming deeply agreed.

And it seems that the Tang Dynasty does not need to wait until the future, the current dynasty has already suffered the disaster.

…

The dispute in the warm room of Bianjing subsided for a while, Zhao Guangyi rubbed his shoulders and sat down carefully, Zhao Kuangyin's face was still angry, but it was too dark and no one could see it.

And listening to the simple narration of the light curtain, Zhao Kuangyin was also envious from the bottom of his heart.

Now he knows the difference between the Song Dynasty and the Tang Dynasty in farming.

I just didn't expect that behind the simple "the weather is getting colder", there could be such a complicated thing.

Therefore, it is inevitable that like Liu Bei, he fantasizes that if he could be like this Tang...

Then he saw that Zhao Pu's face was even more bitter than his - Zhao Pu's face was still fair, and he could see his expression clearly.

"Although the climate here is not as good as the Tang Dynasty, but..."

Before Zhao Kuangyin finished speaking, Zhao Pu shook his head and uttered two words in a hoarse voice:

"Yellow River."

So Zhao Kuangyin was instantly alert.

Just now, he was only concerned about the good fortune of the Tang Dynasty, and almost forgot the big trouble left by the Tang Dynasty: the Yellow River.

Guangmu said it simply, but now thinking back, his whole back was cold: treating the symptoms but not the root cause.

The meaning is very simple and straightforward, but the subsequent meaning is probably that the entire Song Dynasty will fight against the Yellow River.

Oh no, the Southern Song Dynasty seems to have lost the Yellow River...

Zhao Kuangyin's already dark face is now even darker than the bottom of a pot, and the reason is very simple:

Bianjing City is right next to the Yellow River.

How to face the Yellow River is probably an unprecedented problem.

...

And Li Shimin simply couldn't accept it. After all, he had previously laughed at the weak Song Dynasty without any concealment, believing that it was not suitable to be the dynasty that succeeded the Tang Dynasty.

As a result, it seems that the reason for the weakness of the Song Dynasty is also the fault of the Tang Dynasty?

This is something Li Shimin can never accept.

"Starting tomorrow, we will go to survey the coal mines in the Tang Dynasty!"

What later generations said may be sensational, but with the map of climate change as a supplement, he also understood:

Such a climate will last for at most two hundred years, and the subsequent cold climate will not change due to the will of the emperor or the Khan.

Now the history of the Tang Dynasty has slowly changed. The Tang Dynasty may last for another hundred years, or it may perish early due to some accident.

But in short, they have to consider their descendants.

After all, even if the dynasty changes and the emperor moves, it is still the Chinese people who live and reproduce on this land.