Dahan first prince

Chapter 78

"Dig the silt of the downstream every year, and fill the bottom of the upstream at the age of three..."

Muttering softly, Liu Ying couldn't help shaking her head slightly.

Seeing Liu Ying's expression, Yang Chengyan also understood: the prince probably wants to fix the Zhengguo Canal once and for all.

"Ugh······"

"But please don't be too perverse..."

After secretly slandering, Yang Chengyan raised his head and looked at Liu Ying with a hint of worry in his eyes.

Throughout the ages, the term 'once and for all' has never been involved in anything involving water conservancy.

From the ancient saying that "Da Yu passed through the house three times without entering to control the flooding of the great river", to the past thousands of years, countless admirable sages of water control have put an unquestionable reality in front of the future generations.

——Water control has never been a matter of one person, or even a generation!

For example, the river that was 'tamed' by the ancient sage Yu the Great thousands of years ago, has it been subject to it for a long time after that?
No!

Not only did it not exist, but there was a large-scale breach and diversion every hundred or so years with great regularity!
Not to mention big rivers, but those small ditches and ditches that are no more than knee deep and no more than three feet wide on rural village roads. Don’t they have to clear the silt every year?

Therefore, in Yang Chengyan's view, whether it is a supernatural workmanship like Dahe, or a man-made water conservancy like Zhengguo Canal, like every river and ditch, it needs to be maintained and repaired at regular intervals.

Otherwise, it would be like Zheng Guoqu is today.

——The evil consequences of not maintaining and repairing for many years will eventually require a force so huge that the center of the court will end, so that it can be resolved.

But Liu Ying seems to have a different view on the point of 'one-and-done is not advisable'.

"Um······"

After pondering for a while, Liu Ying looked at Yang Chengyan with a silly smile, and said with a little embarrassment: "I have another question."

Hearing this, Yangcheng Yanzong kept shaking his head in his heart, and had to put on a posture of listening attentively.

Seeing Liu Ying's words, she said with a little guilty conscience: "The Shaofu just said that the sediment blocking the downstream all flows downstream from the upstream?"

"Since that's the case, let's try to say it alone."

"—If we find a way to consolidate the soil upstream of the Zhengguo Canal, wouldn't it be possible to prevent the upstream soil from flowing downstream?"

"If the soil in the upper reaches is solid, there will be no sediment blocking the downstream?"

Hearing Liu Ying's words, Yang Chengyan first subconsciously shook his head.

After thinking about it, my complexion couldn't help but stagnate!
"How did the family know about the hydraulic engineering?!"

With an exclamation in his heart, Yang Chengyan couldn't help but widen his eyes a little, with disbelief clearly written in his eyes!

Liu Ying's understanding of hydraulic engineering was obviously beyond Yang Chengyan's expectations.

In fact, not only Yang Chengyan, I am afraid that in the hearts of every courtier and official, the concept of "meat eaters are contemptible" is held to varying degrees.

Not to mention the prince, but a child of the Gaomen family. At Liu Ying's age, knowing what the canal is, what it looks like, and what it is used for is already very remarkable.

Even though Liu Ying was the prince, Yang Chengyan never expected to get a feasible plan for Zheng Guoqu's renovation work from Liu Ying.

If you can get the money and food together, and give enough coolies, the Shaofu can take care of the rest!

But when Liu Ying said that "fix the soil upstream, the downstream will not be blocked", Yang Chengyan's attitude towards Liu Ying could not help but quietly changed.

"This time, the prince may have put in a lot of effort to renovate the Zhengguo Canal..."

Wanting to understand this, Yang Chengyan couldn't help but quietly put away the looming contempt for "layman" in his eyes, and looked at Liu Ying with a little solemnity.

"What the family said hits the nail on the head!"

"Where there is a big river or a big stream, if you want to prevent the downstream from breaking due to obstruction, the best strategy is to secure the soil in the upstream!"

Nodding slightly to Liu Ying with admiration, Yang Chengyan continued: "If a big river wants to consolidate the soil in its upper reaches, it is necessary to plant long-rooted, deep-rooted trees along the coast that depend on a lot of water."

"Such long-rooted, deep-rooted, and mostly water-dependent trees are often called by hydraulic engineers: trees that hold the soil."

"Plant such soil-fixing trees in the upper reaches of rivers and rivers, and the deep roots of the trees can solidify the soil along the banks to ease the obstruction of downstream sediment."

Having said that, Yang Chengyan couldn't help shaking his head with regret, and sighed again.

"However, the Zhengguo Canal is only a small canal that is more than three hundred miles long and less than ten feet wide."

"It takes dozens of years to plant a solid tree upstream of it, not to mention its growth; if it grows vertically, it may not help many things..."

After all, Yang Chengyan finally bowed to Liu Ying, looking at Liu Ying, he couldn't help showing a little intimacy.

"I am very fortunate to have such a heart in my family."

"However, the soil in the upper reaches of rivers, rivers, and canals has been difficult for hydrologists to solve in the past thousands of years. Among them, the canals are even more difficult to solve!"

"The family wants to consolidate the soil of the upper reaches of the Zhengguo Canal..."

After pondering for a moment, Yang Cheng Yan finally smiled and shook his head.

"Looking at the world, I'm afraid there is no such good plan."

Hearing Yang Chengyan's somewhat professional interpretation, all the officials in the hall couldn't help thinking.

After realizing that no matter what, they couldn't quite understand the word 'wood that solidifies the soil', and everyone gave up thinking about it.

After a while, everyone couldn't help raising their heads again, and gave Liu Ying merciless gazes of admiration.

Although he didn't quite understand the concept of 'wood that solidifies the soil', most of what Yang Chengyan said could be roughly understood by everyone.

Everyone basically understood what Liu Ying said.

Although they don't know how well Liu Ying's proposal is known in the "hydraulic engineering" circle, it is not difficult for everyone to see that the crown prince Liu Ying is not the son of a son who only knows how to eat, drink and have fun in the stereotyped impression of everyone!
In order to renovate the Zhengguo Canal, Liu Ying must have put in a lot of effort and learned a lot!
Not to mention what useful things I have learned, just this attitude of 'I don't understand, but I can learn', I don't know how many blocks I have left behind my peers!
But today, when Liu Ying showed the image of a prince who is kind to his courtiers, dedicated to affairs, humble in dealing with others, and willing to learn, all the courtiers with hundreds of meritorious officials in the palace are full of expectations for the future!
Just as the ministers were thinking about whether they should make a smooth deal and tell Liu Ying 'you have done a good job, but there is really no way to do this', they saw Liu Ying on the imperial steps, still shaking her head unwillingly .

"wrong."

"The method of solidifying soil is not just about tree roots!"

Liu Ying muttered to herself for no reason, causing everyone in the hall to raise their heads in doubt.

"At home, you seem to be a little paranoid?"

Before everyone could turn around, Liu Ying suddenly got up from her seat, and looked at Yang Chengyan seriously under the eyes of everyone in the hall who didn't know why.

"If the soil in the upper reaches of the Zhengguo Canal is pressed with heavy objects, can it be consolidated?"

(End of this chapter)