After the autumn harvest, the tenants who had been busy for nearly ten months were finally allowed to rest for a few days.

Since they became tenant slaves here, they have not stopped working. They have dug canals, wells, fish ponds, built roads, planted trees, and built houses...

After five days of rest, they received an order again: before the end of the year, the road between the villa and Chang'an City should be paved with cement.

The tenants were grateful to Yin Qingfeng, the master from the bottom of their hearts. They would complete his order meticulously without complaints. However, what they did not expect was that they also received another surprise: men aged 18 to 25 will be selected to study.

Reading~~~ The ancestors have been illiterate for generations. Now, not only those who are younger than fourteen years old are already studying, but also those who are more likely to study. For a time, the enthusiasm of the slave and respect for Yin Qingfeng have risen to the extreme.

Yin Qingfeng selected these young people, intending to go to various road construction sites to serve as accounting and logistics cashiers, and be responsible for managing production. Those who pass the mathematics to do financial work, and those who do poor mathematics also conduct management training.

From small businesses and companies to the country, the most difficult and most prone to problems is economic accounts. A small account book can determine whether the money of enterprises and countries is embezzled and misappropriated. Yin Qingfeng wants to build a whole country's road, and financial problems are the most critical.

After two months, Yin Qingfeng was sure how many people would join the cement production, and he could arrange for people to start paving the way.

His plan is that all the cement kilns that are franchised will be put into production next year, and then road construction will be carried out at the same time, with a total construction period of about five years; if no one in some prefectures and counties are willing to go, or if the number of people joining, he will send himself to build the kiln. These young people are the reserve candidates.

After these people completed the road construction task, each of them mastered certain living skills. By then, Yin Qingfeng would consider giving them good things.

In this era, not only the landlords were desperately slaughtering slaves, but also the common people themselves were willing to become slaves.

The landlords have mastered too much land, and slaughtering is the lowest cost method; civilians are willing to become slaves, one for the sake of personal safety and the other for avoiding taxes.

Except for the Song Dynasty, grain tax or agricultural tax accounted for the vast majority of the national tax revenue in China in history.

If we look up the tax standards of past dynasties, people will find that almost every family can bear the amount of taxes issued by the central government. However, after the government decrees are issued one after another, they may increase several times when it comes to the people. The gap between them comes from officials at all levels.

In ancient times, whether a country was effectively managed did not depend on whether the monarch and emperor were virtuous or whether the officials were honest, but only on the transportation conditions.

In order to facilitate the exclusion of the land to the princes, Liu Bang divided the land into directly-level counties and enfeoffed states in order to be lazy. Their original intention was to reduce management costs. Because the transportation conditions were a flaw.

It is precisely because the sky is high and the emperor is far away that officials at all levels dare to unscrupulously tamper with the central government's decrees. The result of the tampering is that farmers cannot afford the heavy tax burden. Therefore, turning into slavery became their only choice.

After learning from the lessons, the Tang Dynasty turned more than 300 states across the country into direct states. It seemed effective, but it was actually not scientific. It took an official a long time to be appointed to an official in a certain place to the Ministry of Personnel to assess his political achievements.

Modern people say that there was a phenomenon of imperial power in ancient times that there was no county because the power of local clans was strong enough. But assuming that a country's territory was only 200 square kilometers, no matter how powerful the local clan forces were, they would still dare to fight against the army? The reason was that the transportation conditions were not good enough.

With the development of transportation and the government orders being smooth, the time to disintegrate the farm economy is here. If you want to develop a commercial economy, you must have enough labor and consumers. If a large number of people are dependent on the name of a certain family, business will never develop.

Ma Zhou kept asking Yin Qingfeng's actions again, but Yin Qingfeng just perfunctorily said that his relationship might not be as deep as he imagined. After learning from his experience and lessons, he didn't want to fall apart any more.

As for Lu Cai, his attention has never been on this. Those magical mathematical symbols are his favorites.

On this day, Ren Wu returned to the villa.

The next morning, Yin Qingfeng canceled the morning exercises, and after a simple breakfast, he took his people to set off.

Although the carriage is not so bumpy after having shock absorbers, the black whirlwind needs to be moved frequently, so Yin Qingfeng’s habit of riding a horse cannot be changed.

When we arrived at the bank of the Wei River, it was already three hours later. Only when we arrived here did the people who came here know what Yin Qingfeng was going to do---build a bridge!

The Wei River is the largest tributary of the Yellow River. The Yellow River is the cradle of the Chinese nation's civilization and culture. The Wei River is the cradle of the cradle of civilization and culture, the treasure in the cradle, and the "Mama River" that is most concerned about. "Three sources come from birds and mice, and one water prospers for eight dynasties."

More than five million years ago, the Yellow River was a large river flowing eastward from Lanzhou to the east, passing through Weiyuan Niaoshi Mountain, and flowing eastward along the Weihe River Basin. The Weihe River is the ancient river channel of the Yellow River.

Since the Ceptogenic Era, the new tectonic movement has raised the West Qinling Mountains, and the Lugu Mountains become Longzhongping Peak, extending westward to the west, with low concave and sinking, and Tao River flows westward; the north slope to the northeast sag. From Magui Mountain to Niaoshi Mountain, a north-south long wall-shaped uplift zone occurred, becoming an isolated island, and then the depressions of Yuzhong, Lintao and Longwei Basins appeared, and the uplift zone blocked the Yellow River.

After encountering obstacles, the ancient Yellow River diverted its route to flow northward, passing through Helan Mountain, Yin Mountain, and Ordos Plateau, and flowed into the sea from the Shunsanggan River in northern Shanxi.

Later, due to the uplift in the Jining area, the Yellow River went south again, forming a "ji" shape, converging at Tongguan and Weihe River.

The uplift belt created the birthplace of the ancient Wei River. Historically, the place where the Yellow River flowed into was called the source of the Wei River, also known as the birthplace of the Wei River. The source of the Niaoshishan is separated from another tributary of the Tao River in the Yellow River by a low watershed, and is the key channel for the ancient Yellow River to flow into the Wei River.

The Yellow River and the Yangtze River source have many natural inflow lakes and plateau glaciers over 4,000 meters. Underground diving and ice melting supply, there is sufficient flow at the source. However, the Wei River is the opposite. It mainly relies on the gathering of multiple tributaries, and the tributaries have less groundwater and relies on precipitation from the sky to supplement the supply. Therefore, there is a saying that "the water of the Wei River comes from the sky, flows to the sea and never returns."

In the early Western Zhou Dynasty in the 10th century BC, the climate became cold, and glaciers formed in areas above 3,000 meters on the northern slope of the Qinling Mountains, providing water for the Wei River in summer; from the 8th to 3rd century BC, during the Spring and Autumn Period and the Warring States Period, the climate gradually warmed, the glaciers melted, and the flow of the Wei River became smaller.

The cold climate began again during the Western Han Dynasty - the now popular "Twenty-four solar terms" was determined during the Qin and Han Dynasties, and the middle part of the Western Han Dynasty warmed again. During the Wei, Jin, Southern and Northern Dynasties, the climate became cold. The early Tang Dynasty turned warmer, and from the middle part of the Tang Dynasty to the Five Dynasties, the climate became cold.

The current Wei River has different flows during drought, rainy season and violent flooding periods, with large monthly variability and huge flow disparity. The water level period is from December to April of the following year, and irrigation along the river from April to June, and there is a phased flow outage. This is because the source of the Wei River, like the Loess Plateau and the Qinling Mountains, has undergone many deforestation.

In addition to destructive deforestation, transitional land reclamation has also driven the depletion of the Wei River water source.

During the Spring and Autumn Period and the Warring States Period, King Xiang of Qin built the Great Wall and carried out reclamation in the valleys on the inner line of the Great Wall. After Qin Shihuang unified China, he reclaimed and extended to the lower reaches of the Tao River, and reclaimed and crossed the Yellow River in the Western Han Dynasty. During the Three Kingdoms, from the Western Jin Dynasty to the Sixteen Kingdoms, farming declined, and animal husbandry was the main focus; in the Northern Dynasties, agriculture and animal husbandry recovered, and reclamation appeared again during the Sui and Tang Dynasties, forming a prosperous agriculture and animal husbandry.

The Wei River is the upper reaches from Shaanxi to Linjia Village, and the water flows rapidly; the Linjia Village to Xianyang is the middle reaches, and the water flows slowly and scattered, with many shallow sandbanks, and the river is wide between 1,500 and 2,000 meters. After passing the word Baojimei, the rivers of the Wei River swing north and south, changing frequently, and the people also have the folk proverb "Thirty years of Henan, thirty years of Hebei".

The lower reaches of Xianyang are the lower reaches. The section from Xianyang to Jinghekou is a wandering and divided river channel, and the river channel is relatively stable; the section from Jinghekou to Luohekou is relatively fixed on the right bank, and the left bank collapses severely. The river below the mouth of Beiluo River is 3,000 to 15,000 meters wide.

Now, there are still ancient bridges left during the Qin and Han dynasties on the Wei River, with a total of three groups of seven. However, these bridges have one thing in common: the bridge piles are dense, and slightly larger ships cannot pass through at all.

Yin Qingfeng wanted to build a high bridge to replace these wooden bridges. At the same time, he also wanted to use this bridge to verify whether the original means could be used to build a bridge across a river channel of several thousand meters.

If it succeeds, this will be valuable experience. In the future, on the Yellow River and the Yangtze River, you can build a bridge to communicate between the north and the south according to the same method.
Chapter completed!