Flood control is a very complex system work, and it can be said that it is the most productive project of science and technology in this era. For this reason, Wang Yong requisitioned more than 100,000 people and 300,000 slaves, and even sent Wang Meng, a son of the public office, to lead 5,000 soldiers to obey his dispatch.

With a large number of men, Sun Shuao can show his strength, especially those who have a large number of academy students, these people have been educated by the academy, know a lot of knowledge, and can assist Sun Shuao in managing the people's strength, materials, and so on.

In addition to the flood control, the students of these academies also recorded in detail the river control and the geography and hydrology of the Huai Kingdom.

These recorded data, as well as the various problems that arise in the water control, will also be summarized and compiled into a book, and the information of Sun Shuao's governance of the Huai River Basin and Fang *** will be regarded as the inheritance of the academy. In the future, there will also be students in the academy who will learn how to control water.

Sun spent a lot of time surveying the mountains and rivers, then dredging the Huai River, digging artificial lakes in several low-lying areas in the lower reaches of the Huai River, and building reservoirs.

The construction of a hydraulic project takes a long time and requires a lot of labor, but the benefits of completing it are obvious.

If the system is used to display, then the Huaiguo labor service levy at this time is at least 60, the consumption of money and food is also 80, and the state is under construction, and it is impossible to send troops.

Of course, if this water conservancy project is completed, Huaiguo will also get the effect of reducing flood disasters by 70 percent, drought disasters by 70 percent, grain irrigation +80, grain production +80, and national strength growth by +20.

Sun Shuao excavated eight artificial lakes in the Huai River basin to store water, and at the same time built 27 reservoirs, 375 sluices, and a complete flood distribution irrigation system.

The entire system took about 400,000 people and took eight years to complete. Wang Yong named it the Yong'an Canal Irrigation Area, praying for the eternal stability of the Huai Kingdom.

With the completion of this water conservancy project, the irrigable farmland in Huaiguo has directly increased by hundreds of thousands of mu. At the same time, the lower reaches of the Huai River are almost unaffected by flooding. Through the Yong'an Canal irrigation network, the flood water can be diverted into dozens of ditches to irrigate the entire bank of the Huai River.

Rivers such as Surabaya and Yishui have also been treated, and the emergence of a large number of reservoirs and artificial lakes has improved the Huai River basin's ability to resist floods and droughts. History: 'The people live in peace, the characters are Yin Fu, they are happy to work, all industries are prosperous, there are no moths, and there are many prosperous years.

[Your descendants appointed Sun Shuao to preside over the construction of the Yong'an Canal Irrigation Water Conservancy Project, which is a heavy stroke in the entire history of human civilization, and you have gained a lot of luck. 】

Zijue was also surprised by Wang Yong, this attribute can only be regarded as a mediocre heir, and he actually has such good luck, and at the same time, he can also know people and make good use of them, appoint virtuous ministers, recuperate, and make Huaiguo stronger and stronger.

In the first year after the completion of the construction of the Yong'an Canal irrigation system, Huaiguo was abundant, the grain was piled up, the people were solid, and the treasury was abundant.

Huai Palace Hall.

Wang Yong carefully read the reports from various places, and the grain output in the Huai River valley alone was more than the output of the entire Huai country in the past. With such a great achievement, Wang Yong was even more happy, and after eight years of hard work, he succeeded in one day.

"Uncle Sun Shangqing is really a great talent in the country and the country, this Yong'an Canal has been completed, and there is no hunger in the Huai country! This is a thousand years of work!"

"Your Majesty, the ministers dare not take credit, this project is not for the ministers alone, but for the power of millions of people in Huaiguo!" Sun Shuao is not arrogant, on the contrary, he is very modest, and his character makes Wang Yongdu feel amazed.

He is in charge of water control, but he is not greedy for the slightest, and he has no property at home, let alone a good land and mansion.

"Qing's great merit, don't shirk, Lone is willing to invite Qing to serve as the prime minister, and be named Yong'an Jun, and eat thousands of households." Wang Yong grabbed Sun Shuao's hand and said.

Sun Shuao nodded, and then saluted Wang Yong and said: "The minister is despicable, living in seclusion on the seashore, and is valued by the king, so he has the opportunity to display his ambitions, build the canal of Yong'an, and promise the position of the prime minister, how can the minister not do his best to repay the great favor of the king."

Although a bumper grain harvest is a good thing, there is also a saying that grain is cheap and hurts farmers. grandchild

Shu Ao immediately suggested to Wang Yong that he should buy the grain in the hands of the people at a relatively reasonable price to avoid the grain from hurting the peasants.

Wang Yong immediately agreed to this suggestion and handed over the matter to Sun Shuao to implement.

Some of the harvested grain is kept in the country for later use, some is used to sell to other countries, and some is used to make wine.

Sun Shuao encouraged the people to raise cattle, sheep, pigs, livestock and poultry, and promised that if no one bought the livestock after it was raised, it could be sold to the government. Pigs and sheep will be used as meat for the army.

Huai has a large population and prosperous commerce, but many times the business transactions are bartered, and the currency of large transactions is cumbersome.

The coins of Huaiguo were first minted by Zijue, using bronze square-hole round coins, which were easy to carry, but because commercial transactions were not prevalent at that time, there were only two denominations.

Now that these two coins could no longer keep up, Sun Shuao suggested minting coins with higher values. So two kinds of coins were minted, Huai Mo and Huai Qian. These two coins are minted in silver and come in denominations of hundreds and thousands.

Handi is rich in minerals, a lot of silver mines have been discovered, the silver of Huai is also rich, originally silver is used to make jewelry, or to reward meritorious officials, there is not much use, now it is used to mint coins just right.

The use of silver as currency not only prospered commerce and trade, but also increased the tax revenue of Huaiguo.

The emergence of Huai Mo and Huai Qian made Huai's commerce and trade more prosperous, and at the same time, Huai's tax revenue also increased significantly. In the past, bartering was used in bulk trade, which led to many times trading difficulties, tax difficulties, and corruption problems.

Sun Shuao promulgated many decrees favorable to the workers, peasants, and Jia, attaching importance to the development of the people's livelihood, and severely cracking down on the encroachment of the interests of the small people by the nobles and nobles. This made many nobles dissatisfied with him, and then framed Sun Shuao in front of Wang Yong, talking about corruption and bending the law, severely punishing the law to obtain huge profits, Wang Yong let the secret guards in the country investigate.

Then he found that what Sun Shuao did was done in accordance with the law, but what these nobles said was framed, Wang Yong was furious, and punished these nobles and nobles for confiscating food, and in serious cases, they directly took the title. After Wang Yong's blow, these nobles immediately became honest and did not dare to violate the law again.

......

Yong'an Canal is the oldest in the world today, and it is also a grand water conservancy project that has been used so far, it makes full use of the geographical conditions of the Huaihe River Basin, according to the topography and water veins of the surrounding mountains and valleys, and guides it according to the situation, so that it has the system functions of water storage, irrigation, flood control, sediment discharge, flow control, etc., and ensures that the comprehensive benefits of flood control, irrigation, water transportation and social water use are fully utilized. Its greatest thing is that it has endured for more than 2,750 years, and it is playing a greater and greater role.

Yong'an Canal is a national key cultural relics protection unit, and has been included in the world cultural heritage, world natural heritage, and world irrigation engineering heritage. - Grade 8 History, Volume I, History of Ancient China