[In fact, the problem of eating has always been a problem for the emperor of the Tang Dynasty.

Emperor Li Zhi went to Luoyang seven times, and in the old days, some people ridiculed that the royal drive to the eastern capital was to "eat".

In fact, this is not slander, for example, the last time Li Zhi went to Luoyang was in 682, this year Guanzhong was first hit by a storm and then a flood, and the price of rice skyrocketed to 400 yuan per bucket, and there was no market.

As a comparison, the price of rice in Chang'an in the fifteenth year of Zhenguan was 20 yuan per bucket, and the highest price of rice in the entire Zhenguan period did not exceed 40 yuan.

Another lowest point of rice prices in the Tang Dynasty was during the reign of Xuanzong, when each bucket of rice only cost thirteen yuan in the thirteenth year of the Kaiyuan Dynasty.

At that time, Guanzhong had already suffered a tragedy of Yizi eating because of the disaster, in this case, Li Zhi drove "Linxing" to the eastern capital of Luoyang, you said that he didn't flee to eat? Who of the people believes?

During the time of Tang Zhongzong, there was another famine in Guanzhong, and the ministers wanted to emulate the old things of the Emperor and persuaded Zhongzong to go to Luoyang to ask for food, but Zhongzong angrily reprimanded:

"How can there be an evil son of heaven chasing food!"

After the Anshi Rebellion, this situation became more serious, Dezong was unstable because of the lack of grain in Chang'an, and later heard that the Jiangnan grain fleet had passed Sanmenxia, and excitedly hugged the prince and cheered:

"The rice has arrived in Shaanxi, and my father and son have to live!"

So, Qinchuan, known as the 800-mile fertile soil, really can't afford to raise a prosperous Tang Dynasty?

Of course, this is not necessarily the case, and the changes in the situation of Guanzhong Liangtian can be seen from the history books.

According to the record of "Yuanhe County Atlas", in the sixth year of Yonghui, Sun Xiang, the governor of Yongzhou, said that Zheng Baiqu, which used to be able to fertilize more than 40,000 hectares of fertile fields, is now truncated by rich monks and great families, resulting in only less than 10,000 hectares of fertile fields can be irrigated now.

Li Zhi ordered a thorough investigation to re-dredge the Zhengbai Canal, but less than a year later, the old story was repeated.

According to the record of "All Tang Wen", Xi Zong, who later got a green card in Chengdu, once openly sighed:

Guanzhong Zhengbai two canals, ancient and modern Tongli, 40,000 acres of fertile industry, the source of food and clothing for hundreds of millions of people. The power of the competition is in a race to take possession.

In the second year of the Dao Dynasty (996 AD), Emperor Taizong of the Song Dynasty ordered the emperor of Dali Temple and Guanglu Temple to select He Liang and others to survey the land, and finally after a field investigation, Song Chen reported:

Zheng Canal is more than 300 li, irrigated 40,000 hectares, Baiqu is more than 200 li, irrigated 4,500 hectares. The two places totaled 44,500 hectares. The number of survivors today is less than 2,000 hectares, but a twenty-second part.

In stark contrast to the rapid decline of irrigated fields, the Tang Dynasty intensified its reclamation of Guanzhong.

"The mountains are overwhelming, and the mountains are also full" is the description of the scenery of Guanzhong by the literati in the Kaiyuan period.

During the Tang Dynasty, Guanzhong had a population of more than 3 million people alone, and the huge population base made Guanzhong reach the true sense of "the fields are exhausted, and the land is exhausted and the mountains are exhausted".

However, this is not useful, on the contrary, because of uncontrolled reclamation, Guanzhong soil erosion, land salinization, and fertility decline.

During the Kaiyuan Tianbao period, it was necessary to transfer at least two million stone of grain from Luoyang every year to be enough for the capital to eat.

But the Yellow River used for Cao Yun is also overwhelmed, from the middle of the Tang Dynasty to the Song Dynasty in the three hundred years of records it is not difficult to see that the flow of the Yellow River is steadily declining year by year, and the time that can be used for Cao Yun navigation in a year is getting shorter and shorter, at the end of the Tang Dynasty, there has been a scene of "hanging river on land" in Shandong, and the people of the time recorded that the Yellow River "is more than a foot in the house".

Therefore, in a sense, the demise of the Tang Dynasty was also an inevitable event, because the deteriorating environment had made it difficult to provide for Guanzhong.

The more hungry the more reclamation, the more reclamation became more hungry, and finally directly dug off the lifeblood of the Tang Dynasty, which maintained Guanzhong, which is a true portrayal of the reclamation of Guanzhong in the Tang Dynasty for 300 years.

This can also be regarded as one of the reasons why the Tang Dynasty "fell into the national capital six times and the Son of Heaven fled nine times". 】

In the Ganlu Palace, Ma Zhou and Liu Renliang's eyes widened together, and they almost subconsciously looked at Li Shimin uncontrollably.

After all, the light curtain said it twice, and both times it was directed at the protagonist, and it was difficult for the two of them to ignore it.

Chang'an fell and fell, and the Son of Heaven fled and fled, is this really the Tang Dynasty where they lived and served?

Li Shimin's face was like a piece of ice, and the face of the living did not approach, which also made Ma Zhou and Liu Renliang stop inquiring.

Last year, the Tang Dynasty destroyed Jieli, and the scene of General Li Jing's sacrifice of prisoners at Shuntianmen is still vivid, and the entire people of Chang'an are honored, and Ma Zhou is no exception.

Therefore, it is hard to imagine that now that His Majesty is full of martial arts, how can the latecomers make such a field?

Liu Renliang is even more uncomfortable, after all, he knows more, the Baijiang Estuary exterminated the Japanese, and accumulated more than ten years of work to destroy Goguryeo, and the martial arts of the Tang Dynasty are incomparable.

So unexpectedly......

Of course, Li Shimin didn't say a word, he just remembered these things carefully, and remembered these simple eating problems that caused the Tang Dynasty emperor to lose his temper.

And the Son of Heaven is already like this, let alone the common people?

So Li Shimin finally sighed lightly:

"The Tang Dynasty has been prosperous for a hundred years, but the Tang Dynasty has not been prosperous every year, nor has it been prosperous everywhere."

The praise of the first emperor of the ages is gone.

The generals who rushed thousands of miles with the sword of Le Ma Yang, and the rats who were incapable of exhausting the three armies.

The red flames at the mouth of the Baekgang River were full of fear, and Baekje vowed to restore the country and survive against the Tang Dynasty.

In the meantime, the eldest grandson Wuji, who was forced to hang himself, was interspersed with the Wu daughter who was in love and finally replaced the Tang Dynasty.

All these things were painted in front of Li Shimin into a vast and magnificent picture scroll, as well as the people who supported this magnificent scene and died.

His gaze moved away from the light curtain and looked at the map of Datang again, and finally an idea could not help but float in his heart:

Is the dual capital system feasible?

……

In the conservatory in Bianjing, Zhao Pu looked at his nose and nose, and his eyes did not squint, but at the same time, his two ears had been propped up.

But what made him a little disappointed was that it was quiet in the warm house at the moment, and the two brothers of the Zhao family's noble status were silent.

In the conservatory, only the sound of the stove burning and the occasional cold wind passing by outside the house could be heard.

Zhao Kuangyin kept silent, silently calculating his lifespan.

Because this Song Taizong is probably the second emperor of the Song Dynasty, if the new emperor ascends the throne, the old emperor will probably be gone, he doesn't believe that his son can play out the Xuanwu Gate operation like that Tang Taizong, neither the ability nor the need.

His knowledge is not bad, and he also understands that later generations seem to have a unique calendar, which includes more than 2,000 years.

According to the corresponding years of the Tang Dynasty, it is slowly estimated which year the first year of the Song Taizong is the first year of the Tao.

Zhao Guangyi, who was sitting opposite Zhao Kuangyin, also finished the calculation in his heart, boldly raised his head and glanced at his brother who was frowning, and felt a little regretful in his heart:

I don't know how many years this Tao is the name of Taizong of the Song Dynasty.

After all, if it is the first era name, it means that the elder brother can live a long time.

That would definitely not be good news for him.

There was a problem with the data research, and it took a long time.

(End of chapter)