"The superstructure is all green bricks?"

The scholar's discussion caught Perro's attention, and he heard Edwin say there, "yes, this is much better than the shore guard of the Borui Kingdom, right?"

In order to divide the range of activities of the fishmen, the Borui people built many defensive posts on the banks of the river. The geological structure of the river beach could not withstand the heavy stone castle, so the craftsmen of Borui used limestone and rammed earth to build the four-metre-high sentry base, which had to be made of wood and had to be made of lighter pine. Because pine wood is perishable, the Borui Kingdom imports a large amount of wood from the Seuss Kingdom every year to repair the shore guards. The cost of procurement, labor and transportation, and the cost of maintaining the defense of the riverbank are staggering.

Although green brick is brittle, it is also much stronger than pine, not to mention that it is also resistant to corrosion. Even on a damp shore, the brick building can last at least ten years. For this alone, the York family saved a fortune.

"Open the gates. Sylvia came over and said.

"Open the gates!" the apprentice knight of the York family gave an order, more than a dozen strong soldiers turned the winch, and the fine iron chains made a "creaking" sound, and the heavy gate was pulled up little by little, and with a "bang", the river water poured into the gap in the gate, and flowed into the distance along the three-meter-wide canal.

Albert, the scholar of the White Tower, stared at the tumbling murmur of the murky water and muttered, "It doesn't matter if the sediment is washed in, with the control of the control gate, the hired workers can dredge the canal at any time, and the river will flow continuously...... I understand...... It is precisely because of the control gate that this canal can be extended continuously...... Build a control gate south of the artificial lake, dig a canal, and divert water to the Heihe River, 7 kilometers away, to form an artificial river that will never dry up, and irrigate 300,000 mu of irrigated land, not 100,000 mu!"

"Barony of Phoenix, which originally had no stable water source and could not have much arable land, now has 300,000 acres of fertile land. ”

"It's a great miracle!"

Father Uri's face was full of pride, Bishop Perot and the scholars sighed, but Master Tacitus exclaimed: "If it is a miracle, how can it be a mere 300,000 acres?"

A chill rose from the tail vertebrae, and Pero couldn't help but snort, he was shocked by a bold idea, and the upper echelons of the York family kept smiling, they had already been shaken.

"Guan...... The aqueduct that runs through the entire Centaur Hill?!"

Still unconvinced by the young scholars' conjectures, Tacitus said to Edwin: "There are hundreds of streams and reservoirs built in the Centaur Hills, and these reservoirs function the same as artificial lakes......!"

"The node of the artificial irrigation system!" said Edwin Interface.

"More than 1,000 kilometers of artificial rivers, hundreds of artificial lakes, this ...... It's indescribable!

After a long time, scholars finally digested this incredible idea, and finally some people questioned it.

"Master Edwin, I have a question here!"

"The Heihe River is only a shallow river, and if the artificial irrigation system diverts the water from the Jinshui River into the Heihe River, it will inevitably cause the river to rise sharply, inundating the riverbank, and forming a large area of marshland!

"Ring Irrigation Canal!" Before Edwin could reply, Bishop Pero softly spat out a word.

The world is not without man-made rivers, the moat that surrounds the castle is also a river dug by hand, and skilled craftsmen can even build canals to bring water to the town for daily needs. Similarly, thousands of years ago, there was a method of digging ditches to divert water to irrigate farmland. The central and south-central part of the Kingdom of Gambis was the impact plain of the Blinor River, where the land was fertile and suitable for growing crops. In order to clear more farmland, the lords of the plains mostly built canals to irrigate land several kilometers away from the Blinor, but the canals had to be brought back to the Blinor, otherwise the river would flood large fields.

The canal goes around in a circle and then returns to the main river, which is called a circular irrigation canal.

Due to the problem of silting, most of the circular irrigation canals are only 1.5 meters wide and 70 centimeters deep, and no more than 20 kilometers long. The longest circular irrigation canal is located in the territory of the Sousse kingdom and is only 17 kilometers.

The ring irrigation canal can meet the needs of irrigation, but it does not play a role in diversion. However, with the Temperance Gate, it's different.

The Heihe River runs north-south, and the streams and reservoirs of the Renma Hills are on the west side of the Heihe River, and there is a very vast land on the east side of the Heihe River. On the east side of the river, the Yorks built control gates, widened and deeper ring irrigation canals, and artificial lakes to divert water and irrigate countless farmlands.

This is the whole picture of the artificial irrigation system!

"Every canal has a control gate, and the stream reservoir is connected to the Heihe River, once a canal is silted, the gate is immediately closed and dredged, which has little impact on the entire irrigation system...... What a clever idea, what a great project......"

Master Tacitus sighed and asked in a trembling voice, "Old friend, how much farmland can be reclaimed by the artificial irrigation system?"

"Conservative estimates...... 120 million acres!"

Bishop Perrault felt dizzy. The total amount of farmland in the Kingdom of Gambis is 210 million mu, and the farmland that is about to be developed in the Centaur Hills is more than half of the total farmland in the entire kingdom! You must know that although the area of the Centaur Hills is large, there are many hills, and the amount of water in the Black River is limited, and the land that can be cultivated is far from being comparable to the Blinor Plains, and the Gambis royal family occupies the most fertile plains, and the farmland they control is only 110 million mu.

What does farmland mean to lords?

It is true that the output of farmland cannot be compared with the ore vein, but the minerals will always be harvested one day, and the farmland will be harvested every year, and it is the greatest wealth of the lord! With the farmland, the lord family has the foundation of continuous inheritance. Many apprentice knights have thrown themselves into the arms of other families because their families are unable to give farms. The struggle for precious land resources has always been the subject of human warfare, both internally and externally!

The York family's artificial irrigation system can reclaim hundreds of millions of acres of farmland, so can other families replicate it?

Bishop Pero thought about it carefully and felt that it was very difficult, difficult, almost impossible to achieve!

The Yorkist family's water source comes from the Goldwater River, precisely because the Ant-Man army exterminated the riverbank fishmen. If the other lords want to defeat the Fishmen, just look at the Kingdom of Borui to see how difficult it is. The five ruling families of the Borui Kingdom fought with the fishmen for 80 years, almost to the brink of collapse, before the first port was built. No family has such determination and strength.

Suppose that the lord diverts the water of other rivers, he will immediately face war. In fact, wars between lords are not uncommon because of water problems.

Even if the lords worked together to eliminate the fishmen, who would control the gates of moderation, and who would want to leave their fate in the hands of other families? This is almost an unsolvable question.

If it weren't for this reason, how could no one have thought of such a simple facility as the control gate?

More than a dozen lords of the Centaur Hills are all vassal lords of the House of York. However, if it weren't for Sylvia's prestige, they might not have been able to come to an agreement. Whatever the future holds, at least the York family has taken the first step, and just like the Borui people, the first step will continue to be taken.

The take-off of the Centaur Hills is unstoppable!

Bishop Perro could think of it, and so could others, a dozen young scholars with different expressions, some worried, some excited, some eager.

Pero realized Sylvia's intentions. These scholars came from all the kingdoms of mankind, including the nobles of Gambis, the nobles of Dordor, the nobles of Seuss, and the nobles of Sassan. The glorious future of the Centaur Hills will spread throughout the human world through them, and those knights and scholars of the small families will flock to the Centaur Hills and take refuge in the Yorks, because they have enough farmland!

"Cattle and sheep do not compete with others for land! Raise more than 100,000 wild boars! More than 100 million acres of farmland! How many people can be fed by this....... How many people can this feed?"

Father Uri's face flushed with excitement, and Pero suddenly realized that the new farming and pastoral system and the water conservancy project were completely one! Once completed, the Centaur Hill would be able to accommodate a million people. The greatest beneficiaries of this miraculous project are the church and the common people!

"Honorable Highness Sylvia, I congratulate you. Your conquest of the Jinshui River and the transformation of the hills of men and horses are unprecedented achievements of our predecessors! Your great deeds will surely be remembered by history, and your wisdom and courage will be sung as an epic!"

Master Tacitus saluted Sylvia solemnly, and Sylvia returned the salute gracefully. Tacitus hugged Master Edwin again and praised, "Old friend, I congratulate you too. Arya created the vassal system and changed the history of mankind, and you changed nature, your extraordinary achievements are comparable to the founder of the White Tower, and your name and deeds will be engraved on the walls of the Silver Tower!"

"Haha, my old friend, I didn't invent the hydraulic project!" Edwin laughed.

"Ah...... Is that the master's creation?can't it?!" Tacitus followed Edwin's gaze to Viscount Randall, who was shooting the fishman, and said incredulously.

"Whoosh" "Whoosh" "Whoosh"

The yew longbow kept collapsing, and the three fish-men 500 meters away were nailed to the ground by long arrows falling from the sky.

"Lord Randall, I really didn't expect it to be you......"

Master Tacitus unconsciously used an honorific, and Victor hurriedly waved his hand and said, "Where can I design such a complex system?" I just provided Master Edwin with an idea, and it was the master who designed the temperance gate and perfected the whole idea. ”

Master Edwin glanced at Victor with satisfaction. In order to hide Victor, Sylvia had wanted to press water conservancy projects and a new farming and pastoral system on his head. However, what the old scholar hates most is cheating, and he reluctantly agrees for Victor's safety. With Victor's current strength and reputation, there is no need to hide it anymore, and Edwin insists on making Victor deserve it. However, Victor is determined not to be burdened by fame, and Edwin can only compromise in the end, after all, this is indeed his perfection.

"Viscount Randall, how did you come up with that?" asked Master Tacitus, who was stunned and curious.

Before Victor could answer, Edwin said excitedly: "Victor saw that the people were digging ditches to divert water, and found that there were no fishmen on the banks of the Jinshui River, so he came up with this idea! Old friend, this is our victory! Absorbing the wisdom of civilians is the future of the Silver and White Tower!"

"Master Edwin, you're right. The Supreme Lord of Light guides the wisdom of the people, which we need to discover and use. Bishop Perro said earnestly.

Sylvia nodded slightly, and asked lightly, "Your Excellency, do you have any ideas?"

Perro let out a long laugh and said in high spirits: "It is the honor of my life to devote myself to such a great cause, and I will ask Archbishop Lazarus to serve as Bishop of the Centaur Hills at the same time. I firmly believe that His Majesty will also pay attention to the appeal of the Centaur Hill!"

Perot is a disciple of the Pope, and his statement is tantamount to giving up the position of archbishop, and with it, the Church's tilt towards the resources of the centaur hills. The lords of the House of York were all smiling, like a rain after a long drought. Count Terrandon stepped forward and said, "Your Highness, please name the artificial lake!"

"Rose Lake!" Sylvia rolled her beautiful eyes, grabbed Victor's arm, and said, "The Black River has been renamed the Silver Moon River, and the Black Castle Town has been renamed Golden Water City!"

Master Edwin twisted his beard and smiled, "Okay! Rose Lake, Silver Moon River, and Golden Water City deserve their name!"