In the Qianqiu Hall of Daxing Palace, a huge Great Sui sand table has been placed, including mountains, rivers, cities, bridges, and roads.

Yang Dong, Li Jing, Huangfu Wuyi, Yang Gongren, Wei Yunqi, Yang Gongren, and important civil and military ministers in the dynasty are all on the side.

Not long ago, according to this year's weather and the heavy snow that swept the country at the end of the year, Si Tianjian astronomers deduced that there would be a big flood in the coming year, although Yang Tong did not know what their basis was, but in the face of such an inference, no one in the Manchu Dynasty dared to ignore it.

You must know that it was once designated as the great cause of the great cause of the great water for seven years, there was a rare flood in a hundred years, the flood swept Jizhou, Yanzhou, Qingzhou more than 30 counties, the affected people up to millions, after the flood, it was another plague, because Yang Guang's focus was on Goguryeo, so there was no timely disaster relief, which made the disaster all over the Yellow River on both sides of Jizhou, Qingzhou later became a major place of rebellion.

Yang Tong and the important ministers of the imperial court, who received the report of Si Tianjian, immediately paid attention to it, and strictly ordered officials from all over the country to check the big rivers and rivers, and before the rainy season of the coming year, once they found that a certain embankment was low or not solid, they should report to the imperial court urgently. At the same time, officials and craftsmen from the Ministry of Water and Resources of the Ministry of Industry were dispatched to inspect the Yellow River, where floods occur from time to time, and to assess the flood resistance capacity of each section of the embankment.

Last night, Yang Tong received a report from the Ministry of Water Resources, saying that if the water volume is calculated according to the six percent of the water volume in the seventh year of the Great Cause, Jingshui is very dangerous, even if the Zhengguo Canal and Baiqu are fully discharged, they cannot channel the flood, and Jingyang and Yunyang upstream are in danger of bursting their embankments at all times.

Jingyang and Yunyang are just two inconspicuous small counties in the territory of Dasui, with a population of only tens of thousands.

As an important town in ancient times, Xianyang needs to have a very important status, and there are more than 10 people living outside the city, once the Jingyang section of the Jingshui bursts the embankment, the water is bound to go down, not only Xianyang City is swept in, but half of the 800-mile Qinchuan will be flooded, which is absolutely irreparable for the blow to the Great Sui.

"To the east of Jingshui, there is the Zhengguo Canal and the Baiqu Canal, so that a large area of land can be irrigated, since the amount of Jingshui is large, why not dig an irrigation river similar to the Zhengguo Canal and the Bai Canal in the west? Wouldn't that turn harm into good? Yang Tong asked with some puzzlement.

"The Holy One doesn't know!" Lang Yuwenwen, the right attendant in charge of the Ministry of Water Affairs, said: "This Jingshui is the largest tributary of Weishui, and the amount of water is indeed abundant. However, the problem is that Jingshui is lower than that of the western plains, and if it is diverted to the west, it will cost more effort and material resources than it can be estimated. ”

"Eliminate the cost problem!" Yang Tong looked at the sand table in front of him and said. "In your opinion, can you open a canal from Ganquan to Jingshui, which goes straight to Xuwei County in the southwest and flows into Weishui?"

"It's definitely going to work, Holy Lord, please see." Yu Wenwen took the wooden stick, drew a line according to Yang Tong's ideas, and finally pointed to the plain south of Ganquan water, and said: "However, if you want to bring Jing water to irrigation, you have to dig a few mountains, and the terrain is high in the west and low in the east, if you want to bring water, then this canal is lower than the terrain on both sides, and it cannot play an irrigation role, which is also the reason why the canal is not opened to the west. In addition, it is possible to build an artificial lake in a low-lying area, and when it is full of water, it can be diverted to other places by canals to irrigate the four directions, but this project alone will take a year or two even if there are enough people. ”

"If this canal can be successful, it can be like the Zhengguo Canal and the White Canal to bless future generations, and this fertile soil, whether the wind and rain are smooth or not, can also be harvested every year. The key is that there is not enough time, and I am afraid that I will not be able to catch up with the flood season. ”

Yuwenwen smiled bitterly: "That's right. ”

"Is there any other way?"

"There is another way, it may be easier, but it is more laborious!"

"Speak!" Yang Tong was not afraid of labor, and there were not enough slaves, so he sent the army, and at the same time, he could also ask the local people to contribute, but it was less than half a year before the flood season, so there was not so much time to waste.

"Whoa!" Yu Wenwen pointed eight points on the sand table and drew eight lines: "You can also dig out eight tributaries of the Jing River from these eight points, and use these eight waters to face the three domains of Wugong; If the eight canals are completed, the water of these eight tributaries can be used to irrigate the fertile fields on both sides of the river, and if the previous Grand Canal is also repaired, Sanchou will have the pattern of pilgrimage to Kowloon. ”

"You still know this?" Yang Tong asked with a smile.

"The knowledge of all schools of thought is inseparable from the five elements of yin and yang, the way of craftsmanship, especially the study of feng shui, it is normal for Wei Chen to know a little feng shui." Yu Wenwen explained with a smile.

"Holy! Sanchou was originally the existence of my Great Sui Emperor's Mausoleum, if it is supplemented by the Feng Shui pattern of the Nine Dragons pilgrimage, my Great Sui Dynasty will be for thousands of generations. The subordinate said that the emperor Wu Yi bowed his hand and said with a smile: "The key is that this 'Kowloon' is beneficial to the country and the people, and the people support it." ”

"What the emperor said is very true." Li Jing said with a smile, "Once the 'Kowloon Pilgrimage' pattern is completed, it will immediately turn harm into benefit, so it is really for the benefit of the people, not a move to work the people and hurt money, and the old minister thinks it should be repaired." ”

"The minister seconded the proposal."

"The minister seconded the proposal."

“……”

"Holy." Jiang Xingben took the opportunity to advise: "According to the usual practice, the holy mausoleum should also be built, and Weichen has reported it many times, but the holy has not approved it, and this matter cannot be delayed any longer." ”

Yang Tong smiled bitterly: "I am not even thirty now, according to this body, at least I can live for a few decades, it is too early to say this." ”

"The Holy Lord's words are not true. The emperor of the ancients, the first thing he did when he ascended the throne was to think about his own mausoleum. Even Li Yuan, a big thief, as soon as he ascended the throne, began to build his own mausoleum in Jiuzhi Mountain, but he didn't expect that the mausoleum had just begun to break ground, and he was blasted out of Guanzhong by the saint. ”

Yang Gongren said: "The saint is the lord of the world, and the land of ten thousand years should be located on the dragon vein, the dragon vein of the Great Sui of Yongzhen. ”

"I know this... Now it's down to business. Yang Tong nodded perfunctorily, in fact, he was more disgusted with this kind of thing, except for a limited number of imperial tombs in previous dynasties, most of them were excavated, the more luxurious the repair, the more burial the imperial tombs, the more tragic the ending, the emperor's bones were scattered all over the ground, how could there be any imperial majesty?

Everyone smiled bitterly, knowing that Yang Dongzhi was not here, although he spent a lot of money, but never wasted on meaningless things, in his opinion, instead of spending huge manpower and financial resources to repair the imperial tomb, it is better to open a few more canals It makes sense.

Yang Tong returned to the topic and said to Yu Wenwen: "If these eight canals start construction at the same time, how long will it take?" ”

"Returning to the Holy Saint, if the manpower and material resources are enough, it can be completed in three months, but the manpower consumed is ten times higher than what I said before." Yuwen bowed and said.

"Ten times?" Yang Tong frowned.

"Not bad." Yu Wenwen used a large pen stained with lime powder to draw seventy-two places where the water flow converged on the sand table, and then introduced: "We can dig from these seventy-two intersections at the same time, connect them with fulcrums, and then start construction along the way, and finally penetrate Jingshui, although the manpower consumption is large, but if it wins, it can be repaired before the flood season." ”

Yang Tong was silent.

According to what Yu Wenwen said, I am afraid that it will take four or five hundred thousand or even more people to succeed, and it is far from enough to be slaves, and it is necessary to ask the people of Guanzhong to start work together, and strive to complete seventy or eighty percent of the project before the arrival of spring ploughing, and then let the people go home to farm, so as not to miss the agricultural time. The remaining two or three percent of the project could be completed by the army and slaves before the flood season.

Suddenly, Yang Tong thought of something and asked strangely, "How do you know so much in such a short period of time?" ”

Yuwenwen said with a smile: "When my father was the secretary of the Ministry of Industry, he was ordered by the first emperor to design many engineering plans; Some ideas were recorded in the father's codex, and Wechen thought that the saint might be useful, so he had perfected his father's ideas over the years, and the Nine Dragons pilgrimage pattern that Wechen said was also one of them. ”

"I see!" Yang Tong nodded abruptly and ordered: "Give me a copy of your engineering design plans another day, maybe we can realize the great ideas of An Ping Gong (Yu Wenkai) one by one." ”

"Whoa." Yuwen Wen was overjoyed when he heard this.

Yang Tong's eyes turned to the sand table, pondered for a moment, and said in a deep voice: "Nine Dragons pilgrimage, let's cultivate." Within three days, I asked for a more detailed construction plan. ”

"Whoa!" Yu Wenwen hurriedly received the order.

"Holy Lord, without further ado, the ministers will go and discuss countermeasures." Jiang Xingben asked for instructions that this project was under the jurisdiction of the Ministry of Engineering, and he must follow up the whole process.

"Quasi-play." Yang Tong waved his hand, for him, the current enemy is not anyone, but God, time is too important for Dasui.

"The ministers are leaving." Jiang Xingben and Yuwen Wen bowed, left the main hall, and went to the official residence of the Ministry of Industry to study how to start the construction, the required civil and financial resources, and so on.

Yang Gongren saw Yang Tong staring at the sand table and was silent for a long time, so he asked, "The Holy Lord is still worried about the flood that may occur in the coming year?" ”

Yang Tong nodded: "Of course!" ”

If it is as Si Tianjian predicted, there will be a fire in the coming year, and the court is not prepared, and the people will be affected, there will be rumors in the market!

And in the eyes of the ancients, the emperor was a son of heaven, and an extraordinary man. Once the emperor loses his morality, heaven will inevitably send disasters to warn the emperor, and if he does not change, the subjects of the world will bear their responsibility. Therefore, if a natural disaster occurs, the first thing that comes to people's minds is not disaster prevention and relief, but to hold the emperor responsible.

Therefore, whenever there is a natural disaster, the most nervous person is the emperor, because it is difficult to be used by people with ill intentions, resulting in the unstable situation of the court and the instability of the country.

Of course, the current Great Sui is not afraid of rebellion, but Yang Tong cannot ignore the safety of the lives and property of the people of the Great Sui.

Yang Gongren opened his mouth, and couldn't help but sigh bitterly in his heart, he was the first person to follow Yang Dong, and after watching him develop all the way to today, he naturally knew that Yang Dong's sense of mission and responsibility was extremely heavy, and he thought about it and said: "The saint may be thinking too far." ”

"Maybe." Yang Tong sighed, "I am not afraid of man-made disasters, let alone wars, but this natural disaster is too damaging to the country, and I can't ignore Si Tianjian's prediction with a fluke heart, so even if it is useless, I must make a big move and prepare for floods." ”

"Shengshang, if there is really a big flood in the coming year, then the embankments in the middle and lower reaches of the Yellow River will be the focus of prevention." Yang Gongren said.

Yang Tong nodded, pointed to the sand table and asked, "Have you noticed that the Yellow River Basin is missing anything compared to the Yangtze River Basin?" ”

Yang Gongren said without hesitation: "Compared with the Yangtze River, there are many fewer lakes and tributaries in the middle and lower reaches of the Yellow River. ”

"The left servant is extremely true."

At a glance, you can find that in the middle and lower reaches of the Yangtze River, in addition to the large tributaries such as Hanshui and Ganshui, there are also three major lakes, namely Dongting Lake, Poyang Lake and Chaohu Lake, while there are only a few small tributaries in the middle and lower reaches of the Yellow River, and there are no lakes.

"I believe that the lack of water regulation by large lakes and tributaries is also a reason for the flooding of the Yellow River." Yang Dong's words were astonishing.

"Holy! The lakes and rivers in the Yangtze River basin inject water into the Yangtze River all year round, increasing the amount of water in the Yangtze River. How can the lack of lakes and tributaries be the cause of the Yellow River's flooding? ”

"Yes, if there were no tributaries and lakes to fill the great rivers, the rivers would not have swelled."

Everyone didn't believe Yang Dong's astonishing words.

"Then you tell me, why is there less flooding in the Yangtze River, which has a large tributary of the Great Lake? When did the middle and lower reaches of the Yellow River, which does not flow into the great tributaries of the Great Lake, flood from time to time? ”

"......" Everyone was dumbfounded, and they answered.

"Why is that?" Luo Shixin, who was so idle that he was caught by Yang Shanhui and was a strong man in the military department, looked confused.

"It's simple." Yang Tong said: "When the Yangtze River is dry, Dongting Lake, Poyang Lake, and Chaohu Lake replenish it, and whenever the Yangtze River floods, these three lakes are forcibly injected, thus playing a role in regulating the water of the Yangtze River." The reason why the Yellow River floods from time to time is because there is no part of the water absorbed by the large lake in the middle and lower reaches. ”

Everyone was stunned.

"But the Yellow River bed is too high to form a lake." Kong Yingda said.

Fang Xuanling had a flash of inspiration in his mind and said: "Although there are no lakes in the middle and lower reaches of the Yellow River, there are many low-lying areas. Simply relocate all the people in the low-lying areas with poor soil quality, and then take the initiative to break the embankment of the Yellow River and inject the water of the Yellow River into it to form a large lake that regulates the water volume of the Yellow River. ”

"Fang Shangshu's method is wonderful." Yang Shidao said with a smile: "Anyway, both sides of the Yellow River are ravaged by war, and many places are uninhabited for hundreds of miles. ”

"Fang Shangshu's idea is absolutely feasible, and I think Dongping County is the best choice." Yang Gongren set up a wooden pole, first pointed at Dongping County on the sand table, and then drew a line: "Just dig the canal from Fan County, Dongping County to Yuncheng, and inject it into Juyeze to the south; If you are worried that the capacity is not enough, start from the south bank of Juyeze, dig to Rencheng in Lujun, communicate with Nanyang Lake, Zhaoyang Lake and Weishan Lake, and inject Surabaya into Pengcheng, and to the south is Huaishui, Yigou, Yangtze River, and Jiangnan River, so as to form a new Grand Canal. ”

Yang Tong took a closer look and found that Yang Gongren was talking about almost the southern section of the Beijing-Hangzhou Grand Canal in the Yuan Dynasty, because there are many lakes and natural rivers here, there are not many canals that need to be excavated. The key is that the 500-square-kilometer Konozawa has a great draft capacity

After thinking for a while, he frowned and said: "Yes, but the Yellow River carries a lot of sand and soil, and the Yongji Canal is because of the backflow of the Yellow River, which sheds a lot of mud and dust, causing the section of Hanoi County to be blocked from time to time." If we build it like this, I am afraid that it will not be long before this canal is like this. ”

Yongji Canal leads to Zhuo County in the north, and flows into the Yellow River with Qinshui in the south, but the Hanoi section parallel to the Yellow River in the opposite direction, the water power is not as fierce as the Yellow River, whenever the Yellow River surging water potential is poured in, the water of the Yongji Canal is forced back, when the Yellow River water retreats, a large amount of sediment is left in the canal bed, and it does not take a few years to start blocking, which seriously affects the smooth flow of the canal.

Yang Tong for this section of the Yongji Canal, it can be said that he tried his best, at the beginning he also used slaves to carry out dredging activities, but in the second year was damaged by the sand of the Yellow River, and then simply gave up the section from Liyang to the mouth of the river, and let the Yongji Canal enter the river in Liyang with the momentum of the arc, because this arc and the Yellow River water flow side by side, so it was not poisoned by the river sand.

"The saint is extremely concerned that if the canal flows along with the Yellow River to the east, it will not play a role in diverting floodwater, and if the mouth and the Yellow River are hedged, then a large amount of sediment will rush into the Juyeze. However, if we build the estuary canal in the same way as the Dujiangyan flying sand weir, we can block six or seven percent of the sediment. Wei Yunqi is also in charge of the engineering department, and he also knows some water conservancy projects.

"It's pretty good to be able to stop six or seven percent of the sediment." Yang Tong no longer hesitated, and said to Wei Yunqi: "Let Yuwen Confucian Tong go on a field trip and be responsible for leading the Yellow River into Juyeze." ”

Yuwen Rutong is the eldest son of Yuwen Kai and an expert in this area, and it is most appropriate for him to be responsible for digging the moat.

"Whoa." Wei Yunqi responded.

Yang Tong also said to Yang Shidao: "Let the county officials in the lower reaches of the Yellow River pay more attention, find more low-lying places that are not suitable for crop production, and choose the most extensive area as the flood discharge 'lake'." In the coming year, the people will be mobilized to relocate. ”

"Whoa."

"More than half of the sediment of the Yellow River comes from Weishui, which is because there is a clear phenomenon of Jingwei at the turn of Jingwei! Harnessing the Yellow River is an urgent matter. Yang Tong instructed: "From now on, all fields within five miles on both sides of the Weishui main stream will be returned to forest, and fruit trees will be planted." The tributaries such as waterlogging, Dushui, Heishui, oblique water, Huangshui, Bashui, and lacquer water each retreat two miles. ”

Thinking of the scene of thousands of ravines and fragments on the Loess Plateau, Yang Tong felt that at this time, he might be able to change some of the precautions, and immediately said: "The upper reaches of the Wei River have washed out a lot of deep chasms, if they are not treated, they will expand and deepen day by day, so year after year, the eight hundred miles of Qinchuan will sooner or later become a desert." Local officials were asked to mobilize the people to build earth-rock dams in front of the ravines, which could retain the water for a short time, and after the upper layer of clean water flowed away, the lower layer of muddy water would settle down, so that a large amount of soil could be retained, and the gullies that had been washed out could be filled in before trees were planted. All these decisions are enforced immediately after the beginning of the year. ”

"Wechen obeys!"

The water of the Yellow River is there, and everyone can see where the Yellow River starts to yellow and where the sediment comes from. The consequence of a large amount of muddy precipitation is to cause the downstream riverbed to rise, once the river embankment is washed away, the middle and lower reaches will become a country, millions of people of the Great Sui will be affected, for the sake of the people of the Great Sui and future generations, everyone has a supportive attitude towards Yang Tong's decisions.

……

"Holy Lord, Yizhou Urgent!" At this time, a guard entered the hall and presented an eagle letter to Yang Tong.

Yang Tong opened the letter, and after reading the content of the letter, he couldn't help laughing.

"Holy One, what happened?" Yang Gongren asked.

Yang Tong handed him the letter and said with a smile: "Read it for yourself." ”

"It's amazing that Lee Hyo-gong actually won once." Yang Gongren was amazed, and then handed it over to Wei Yunqi.

"It's not that Li Xiaogong is powerful, but Dugu Wu is too stupid, just a few soldiers, he actually went to attack Xuanwu City, which is obviously looking for death." After reading it, Wei Yunqi said with a smile, "But Li Yuan is a lot smarter this time, and he actually went to reconcile with his bureaucrats instead of going to war in an all-out way." ”

"People always change, especially in times of adversity." Yang Tong said with a smile: "Since the loss of Guanzhong, Li Yuan has been defeated again and again, this successive blows are too great, but it has also beaten his self-inflated confidence back to the original place, and now Li Yuan's arrogance has been restrained a lot, and he can also listen to people's opinions, although it is surprising, but if you think about it carefully, it is also reasonable." Li Yuan is compared to Li Shimin, the biggest advantage is that he can face the reality when he loses power, calm down and be a man with his tail between his legs, but Li Shimin, as a son, is inexplicably proud. ”

Yang Shanhui looked at the letter, and said with a smile: "Li Yuan is really good this time, he did not blindly use troops against my Great Sui, Taihe Army, and wingmen, but strengthened the defense of various checkpoints and key roads, and appointed confidants to sit in charge, this move is a good way to avoid the weakness of insufficient generals and weak troops, this is a solid strategy, but I don't know if he has a strategy for Peiyuan?" ”

"What is Peiyuan?" Yang Tong asked.

Yang Shanhui said: "External retreat and solid defense, blocking the channel; In the internal reuse of good generals and virtuous ministers, training elite soldiers, light and meager endowments, and cultivating with the people, so that in less than three years, when a lot of vitality can be recovered, maybe the pseudo-Tang Dynasty will become a Shu Han. ”

Li nodded and agreed: "This is the wisest decision. ”

"If Li Yuan becomes Liu Bei as he wishes, it will be difficult for us to conquer Yizhou!" Having said that, Yang Tong didn't have too much worry on his face.

"The Holy One doesn't seem to care?" Xue Wanbei had just returned from the front line, and he didn't know the three major artifacts of Feitian, he originally thought that Yang Tong would have a headache because of Li Yuan's policy of closing the country, but looking at his current demeanor, he was obviously not worried at all.

"I'm not an immortal, how can I change Li Yuan's mind?" Yang Tong didn't break it, but just glanced at Xue Wanbei with a funny look: "I only know that the enemy is strong, and it is enough for me to be stronger, our army's combat strategy for the coming year has been set, and we just need to continue to improve it next." As for Li Yuan, I don't want to care, and I don't believe that he can use an incomplete Yizhou against the power of my Great Sui Prefecture, so don't be deceived by him. Wanbei, you're still very immature. ”

"......" The corners of Xue Wanbei's mouth twitched a few times, and he stopped talking.

Yang Shanhui said with a smile: "The Holy Lord is right, even if Li Yuan is willing to recuperate now, he will miss the best opportunity, the key is that Li Yuan's fundamental problem has never been solved, and this decision to settle down and develop should be Li Jiancheng's suggestion." But Li Shimin and Li Yuanji, who are also sisters-in-law, did not lose their position because of this, as long as these two are still valued by Li Yuan, then Li Yuan may not be right every time he decides in the coming days. ”

Yang Gongren continued: "Not bad. The most fundamental problem of the pseudo-Tang Dynasty is that there are many factions, and now they are being cleaned up miserably by the imperial court, Li Yuan can see the reality for the time being, but no one can say what will happen after the year. ”

"In fact, the biggest problem of the pseudo-Tang is Li Yuan himself." Yang Tong looked at the snowflakes outside the hall, shook his head and smiled: "Although Li Yuan is a little weaker in the strategic decision-making of the world, he is an out-and-out master in the struggle for power. As long as I get this right, no matter how strong the pseudo-Tang is, I can still play with him and applaud him! ”

Yang Gongren, Yang Shanhui and others all nodded silently in agreement.

Although Yang Tong often has some wild ideas, but the real level of strategy, governance, and army management is actually not high, and it is very reluctant to say that it is first-class, but when it comes to figuring out people's hearts and human nature, and knowing and employing people, I am afraid that there are few people in the whole world who can compete with him.

But for the Great Sui Dynasty, it was enough!