Xiao Yan retreated to his seat, and when he saw Li Yuzhen put down the tea bowl and had something to say to King Shen, he got up and sat down by the stove again, watching the fire and guarding the tea.

Li Yuzhen sat cross-legged and talked to King Shen quite casually, "Two days ago, I went to the Yellow River to inspect the water conservancy, from the mouth of the Luohe River to the north, all the way to Hukou Waterfall, I only returned to Beijing at dusk last night, and I haven't had time to enter the palace. ——The master has just returned from Tibet, what is the harvest? ”

Xiao Yan was slightly surprised when she heard this, and immediately understood why the sage did not arrange for her to enroll in the eighteenth academy of the first month, it turned out that King Shen had not returned from Tubo at that time.

Of course, Xiao Yan didn't know that King Shen had a fight with King Huo before he went to Tubo, in order to compete to be her martial master, so she didn't know that she was "targeted" by Tiance Academy a long time ago, and at this time she was only thinking in her heart: King Shen stayed in Tubo, he should be with the grandmasters of Sanqing Palace and Fanyin Temple to chase down the remnants of Tubo, right?

The snow-capped mountains in Tubo are reckless, the grasslands are vast, and it is easy to hide people; The Grand Canyon of the Zangbo River in the south is also high and deep, it is said that there are one or two thousand zhang in the deepest part, the terrain is steep, full of dense forests, and the Grand Canyon is covered with clouds and fog, even if there are more than 100,000 people hidden in it, it is difficult to find. In the terrain of snow-capped mountains and canyons and forests, it is difficult for the Tang army to send large troops to search, so it can only send small detachments one by one, but it is easy to be ambushed by the remnants of Tubo, or killed by wild beasts and poisonous insects.

If there is no martial arts master, this "extermination of the remnants of Tubo" is likely to be a long consumption of manpower and material resources, but with a grandmaster, it is different. Especially for the innate grandmaster, the divine consciousness is released in a concentrated manner, up to seven or eight hundred miles, and if there is a gathered crowd, it will definitely not be able to escape the divine consciousness of the innate grandmaster. In addition, there is also Yi Daoshi in the army, and it is not very difficult to determine a general direction. With this approximate range, it would take much less manpower and time to send out a Grandmaster search. The Tang Dynasty made the surrounding countries fearful, because not only the army is strong, but also the martial arts are strong, and there is also this mysterious and unpredictable Yi Dao that makes people headaches. It is said that the Great Cannibal and the Euroton also have astrology, which seems to be a branch of the same origin, but the Yi scholars of the Tang Dynasty said after research, "Only looking at the sky but not the earth, there is nothing yang but no yin, Xiao Daoer", saying that it can be used as a reference for the astronomy of the Tang Dynasty, but it is impossible to enter the Taoist realm. All in all, this Xiyi astrology, especially astronomical observation, is still somewhat useful, but compared with Yi Xue, it is just like the gap between one for "art" and one for "Tao"; And astrology, which is regarded as the "highest wisdom" by the Great Cannibals and Eurodonians, is not yet able to be mastered by the Tibetans, so if they want to escape under the search of the Tang Army, it really requires luck and a place that can allow them to hide their breath for a long time.

King Shen did not immediately answer Li Yuzhen's words, but asked her about the river: "Is there a danger of flooding in the spring flood this year?" - Hmm, are you planning to go through all the rivers in this year? ”

Dahe, Dajiang is the Tang people's habitual name for the Yellow River and the Yangtze River, which is their original name, and the "Dahe" officially has the nickname "Yellow River" from the time of Gaozong, when from the upper reaches of the Dahe River in the eastern part of Huolan Mountain to Bianzhou (Kaifeng) in the middle and lower reaches, because of the perennial sedimentation of sediment, the river water is already semi-turbid yellow. Although there have been floods in the big river since ancient times, but from the late Sejong Dynasty, it began to be more frequent than the previous generation, there is a flood almost every ten years, to the time of the Emperor Jingzong Dynasty, it is to fight the flood once every five years, to the current Changzhi Dynasty, the river officials have to actively guard against the spring, summer, and autumn floods every year, which is called the three flood seasons.

Flooding has become one of the three major internal political diseases of Datang.

Xiao Yan couldn't help but listen attentively, although she was not interested in government affairs, she was still concerned about this kind of thing involving people's livelihood.

I heard Li Yuzhen reply: "Well, there is this plan." After that, it wasn't so convenient. ”

Once the saint is driven, the crown prince ascends the throne as the emperor, and makes her the crown prince, with the prince's unbearable government body, he will immediately issue an edict to her to supervise the country, and it will not be so convenient to inspect the local area.

She didn't say about the flood immediately, but she talked about the population, and said in a cool voice: "In the 30th year of Changzhi, the household population census totaled 17.56 million households in the whole Datang area, and the population was about 110 million people. If you add the population of hidden households and slaves, as well as the population of unregistered households in the deep mountains and old forests, there are about 10 million.

"Before the Tang Dynasty, the population was at its peak in the Western Han Dynasty, and before Wang Mang usurped the throne, it was 60 million. When the Tang Dynasty unified the north and the south, the population was only more than 40 million, and now, it has more than doubled. The population multiplies faster than the previous dynasties. This is a matter of course, the country is peaceful, the taxes are not heavy, and the population will increase quickly. That's a good thing, but it's not entirely a good thing. ”

She looked at the lush bamboo sea outside the bamboo window, the green could not be seen, and the voice was as cool as a bamboo forest, "It is not surprising that there are too many people, too many fields, too many trees destroyed, and floods are becoming more and more frequent." ”

It is indeed not surprising that Xiao Yan has also heard the fourth brother Xiao Cong speak, because there are two edicts related to this after reading "Gaozong's Record", Xiao Cong gave her a detailed explanation of the causes and consequences.

It was the thirtieth year of Gaozong, Si Tiantai, Tiance Academy, and Guozijian together invited the Yi Dao people of Daomen and Buddhism to gather in Chang'an to discuss and debate Yi Dao, and the Yi Dao of Daomen put forward the theory that "excessive population reproduction is not conducive to water and soil", which caused a fierce debate and also attracted the attention of Gaozong who was listening at that time, and then ordered the Yi scholars of Hanlin Yuan to study this theory together with Yi scholars who are proficient in geography in the Tiance Academy and the Diyuan Academy. After comparing and studying the historical data of population and disasters in previous dynasties, Yi scholars came to the conclusion that the destruction of the surface of the land by deforestation will lead to soil erosion and man-made flooding.

The research of Yi scholars is very rigorous, the research of historical materials has reached the point of nitpicking, which also makes the conclusion of the study very credible, taking Guanzhong as an example, there are still large areas of primeval forests in the pre-Qin era, after the Qin unified the six countries, a large number of people poured into Guanzhong, the area of reclamation increased, and the first emperor built palaces and mausoleums, and a large number of trees were cut down, causing the loess soil to begin to flow into the river; In the Western Han Dynasty, the world was under great rule, and a large number of forest areas became agricultural areas; Then to the Tang Dynasty, the national strength is strong for the prosperity of the dynasties, the scale of the capital is also unprecedented, the consumption of wood is innumerable, only as far as Chang'an is concerned, in addition to logging in the mountains of neighboring states and counties, but also as far as Qishan, Longshan procurement, Qinling and Zhongnan Mountain feng shui are destroyed a lot, Daomen and Buddhism have great opinions on this, so there is a joint difficulty at the Yidao exchange meeting "reclamation and felling of forests are harmful to water and soil".

The most direct impact is that Gaozong successively issued the "Edict on Planting Trees in the River Basin" and the "Edict on Limiting Felling in Mountains and Forests", ordering timber merchants to obtain a logging permit issued by the local river yamen to cut down trees, and levying a logging tax on large-scale logging, and those who steal trees will be severely punished, or even the death penalty. This edict has brought a series of impacts: for example, it has caused an increase in the demand for masonry building materials, and promoted the great development of the private brick-making industry and the quarrying industry; Another example has led to the emergence and extensive use of bamboo paper using bamboo as raw materials; Another example led to the emergence of a new fuel to replace firewood, which is the largest consumption of wood, that is, the coal (coal) that is now used in large quantities in smelting; The defect that charcoal is inferior to charcoal in smelting has promoted the "purification" (coke) of charcoal, which has improved the purity and toughness of iron and steel, thus promoting the innovation of iron and armament, and the innovation of iron tools has promoted the development of agriculture, which in turn has led to further rapid population growth and further increase of cultivated land...... In short, an edict caused changes in all aspects.

These gradual changes attracted the attention of the imperial court because the academic articles written by the Mohist scholars of the Hanlin Yuan on the study and comparison of historical materials were published in the "Hanlin Jiyuan" and attracted the attention of the emperor and the prime ministers—compared with the Confucian study of history, which was "learning from the past and the present, knowing the gains and losses", for the emperor's use of governing the world, the Mohist study of history was concerned with the changes of "the daily use of the people", so as to comment on the gains and losses of the country's governance, and urge the court to reform or formulate policies for the benefit of the country. Although the use of the Mohist after the unification of the north and south of the Tang Dynasty was to obtain the support of the Mojia Sword Pavilion, the Mohist scholars and officials "pragmatic and seeking the interests of the people" were beneficial to the rule of the Tang Dynasty, and the emperor paid more and more attention to the Mohist family because of this, and even produced Jianzong such a "shipbuilding emperor", of course, Jianzong advocated the technology of the Mohists rather than the ideology, but the leapfrog development of the shipbuilding industry and maritime trade during the Zhaozong Dynasty was due to the fact that Jianzong was "obsessed with the art of ink making", and the great prosperity of commerce and trade promoted the prosperity of the country. It also caused a rapid increase in population and an increase in cultivated land, so that mountains and forests were destroyed and soil erosion occurred...... Xiao Yan had thought so far for a moment, and his brain couldn't help but knot: this is really a dead cycle that is difficult to unravel.

It's so hard to govern the country!

She sighed in her heart and glanced at Li Yuzhen sympathetically.

Li Yuzhen raised his eyebrows at her sideways, which means: You know that I am difficult, but you still don't come to help me?

Xiao Yan immediately lowered his eyebrows, this really can't help, if he can help us, he will be the prime minister. Lifted the soup bottle and added two teas, one to King Shen and one to Li Yuzhen, replacing the tea bowl they had drunk half, and said in his heart: We are still capable of serving tea and water.

King Shen took a sip of the tea bowl and put it down: "This matter has been debated by the imperial court for many years, and the scholars of Hanlin Yuan have not studied an effective policy. What's more, there is also the chronic disease of 'land annexation'. If the peasant households have no land, the number of customers and displaced people will increase, and it will be relatively easy to dig out hidden fields from the hands of wealthy families and local wealthy households, destroy forests to reclaim new fields, or enclose lakes to make fields. Cultivating fields and enclosing fields was originally a good thing for the benefit of the people, but if it is excessive, it will cause drought and flood, and natural disasters will come from people. Woe to you, that's true. The rise and fall of the I Ching and the Confucian mean are all about the principle of 'degree', and excessive population growth is indeed not a good thing. Then he smiled again, "But it's also difficult to make people not live." Not to mention the change in the concept of 'more children and more blessings', it is difficult to make people not give birth, and the poor family does not have the money to buy shunzi soup. ”

Laughing again, "It's far away." These literary things, we old bones don't understand. You young people should bother. ”

Li Yuzhen rolled her eyes in her heart, she still doesn't know these uncles and ancestors? - It would be best to be able to bother them in everything, just sit in the temple and be a town temple bodhisattva.

King Shen got to the point, talking about the extermination of the remnants of Tibet.

When the Tang army had not yet attacked Luo, the second prince of Tubo, Osong, saw that the situation was not good, so he first took his private army and his loyal tribes, and about 40,000 people left Luoqi and went to the Yalong River valley in the south of the Tibetan River, which was the birthplace of their ancestor Yalong. The valley is in the valley forest south of the Zangbo River, on the edge, of course, and after many generations of reclamation, it is already a fertile field, where 100,000 peasant families and serfs plough, and if the men and horses of Deoson multiply here, within thirty years, it will be a great disaster for the Anzang Protectorate. As soon as the city was broken, Osong was reported by the spies, and he was so frightened that he immediately led his men and horses to hide in a cave deep in the canyon. If there was no Yi Dao Master to calculate the location, even if there was a Grandmaster searching, such a large place would have to work for at least a few months, and if a small group escaped, it would be difficult for even the Grandmaster to find out which deep ditch and cracks it would be - the Divine Sense would not have scanned one place for a long time.

“…… Osong and the rest of the 45,000 men and horses have been captured, but they escaped from the two royal grandmasters, one in the middle of the Dongzhen Realm, and the other in the early stage, abandoned Osong and slipped away in advance, and it is estimated that he fled to Tianzhu along the Zangbo River, and went south from the Yalong River Valley for 15,600 miles, which is the boundary of Tianzhu. - But two grandmasters, not enough trouble. ”

King Shen took another sip of tea and said: "On the side of the Tibetan monks, after withdrawing from Qingtang Nagqu, Grand Master Degong did not lead the monks to Kapila......"

Xiao Yan couldn't help but think to himself when he heard it, what kind of place is Kapila?

Then he listened to King Shen's words: "Master Duyin led the master of the Fanyin Temple to garrison Kapila with the army, and received the monastery of the Tibetan monks in Kapila, and then it was time to advance the entire Nibhara." As you said before, Nibora was originally a vassal state of Tibet, and now the king was a prince when he went to Chang'an with the Tibetan delegation to pay tribute. Now that the Tang Dynasty has been changed to the suzerainty state, the resistance of the royal family is not strong, according to King Deng's letter, from the king down, the royal family and ministers are very happy. As for the local Buddhism of Nibhara, there are some differences with the Tibetan monks, like our Han Buddhism, because of the righteousness of not killing, opposing the sacrifice of human and livestock, and also opposing the burial of heaven, which is also opposed by the Nibhara Buddhism, just because the Tibetan monks are powerful, the local Buddhism is squeezed to the remote side of the temple. Now that the temple is going to establish a pilgrimage site in Lumbini Garden, the royal family of Devhara certainly welcomes it, and as for the abolition of false teachings such as live animal sacrifice and celestial burial, it is not a big deal——"

Turning his eyes, he saw that Xiao Yan was at a loss when he heard it, so he explained a few words with a smile: "Shakyamuni is the prince of Nibhara, born in the city of Kapila, that is, he became a Buddha under the Bodhi tree in the Lumbini Garden in the city. At that time, the country of Kapila was a vassal of the ancient Tianzhu Saluo, so the Buddhist scriptures called him the prince of Tianzhu, which is an exaggeration, but in fact he was the son of the head of the tribal alliance of Kapila City, the head of the Shakya tribe. When he said this, he smiled meaningfully, "Our Master Xuanzang of the Tang Dynasty went to the Tianzhu Continent to learn scriptures, and he went on a pilgrimage to Kapila. At that time, Fanyin Temple sent three martial arts masters to escort the whole process, among which Master Wukong was the master of the Congenital Realm, who was the master of the Congenital Realm, and the Dharma name was Dukong, in order not to attract attention, he changed his name to Wukong, and the other two grandmasters were also in the Cave True Realm. Otherwise, how could it be so easy for Master Xuanzang to travel west to 137 countries to learn scriptures? ”

- Unfinished, continue

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