The scale of cultivated farmland has been expanding, and the farmland on the right bank of the river continues to expand outward, and even four to five thousand acres of land will be cultivated on the left bank of the river this year.

Originally, Su Yan did not plan to open up farmland on the left bank of the river so early, the so-called plan did not change quickly, but he did not expect that a mountain fire would burn down the jungle on the left bank of the river, saving the step of clearing wasteland, and it is also a labor-saving thing to open up farmland closer to the source city.

According to Su Yan's plan, the four directions of a city should be used to open up farmland and plant various crops, and the farthest distance should not exceed half a day, or even more than a quarter of a day's journey is not suitable, and the time to walk back and forth will waste half a day, leaving only half a day to cultivate farmland.

The closer the farmland is to the human habitation, the better, now the dragon tribe has two cities, and there will be more and more cities in the future, when the population of the dragon tribe increases rapidly, and to ensure that the environment in the wild is relatively safe, some families can be moved from the city to the wild.

A few dozen families can form a village, and more than a hundred families can form a town, with villages and towns as the center, and farmland is carved out around them for planting.

Although the two adjoining cities are only a day's journey away, towns and villages are needed to fill in the middle.

Now Su Yan's plan is that after the population of each city exceeds 5,000, a new city will be built, and then the population of each city will be divided equally, and the second situation will occur in the future, when the population in the city reaches a certain limit, some families will move out to establish a presence or town at a certain distance from the city.

In addition to matters such as foreign conquest, building houses, and cultivating farmland, there are also matters such as smelting and domesticating animals, which Su Yan arranged one by one and handed them over to the patriarchs to do.

The scale of the tribe is large, Su Yan can't be all-encompassing, this is unrealistic, the people in the dragon tribe who can take charge of themselves will be the objects of Su Yan's key training, and in the future, they will all become the city lord of a certain city and manage a city for Su Yan.

Of course, the castle lord is only a position, not a domain that is divided into them, and the position of the castle lord will change at any time according to the needs.

On the fourth day of spring, Su Yan rushed to Chicheng, and on the evening of the day he arrived in Chicheng, Su Yan summoned Zhi, Biao and other high-level leaders of the Dragon Tribe to arrange all the major matters to be carried out in Chicheng this year.

It has been less than a year since the Dragon Tribe migrated half of its people to Chicheng, Su Yan is not worried about the situation in Chicheng, the first year will be arranged by Su Yan himself, and the next year will be arranged by Zhi, the city lord himself, there are so many things that need to be done every year, and Su Yan will also inform the past of the new things later.

"If only there were horses, but if you can't, you can have cows." This is a thought that pops into my mind after spending a day walking from Genjo to Akagi.

Riding a horse can run seventy miles per hour on average, the fastest speed can run a hundred miles every half an hour, and can run up to one hundred and fifty miles in a row.

Horse-drawn carriages, with carts as a burden, travel at a slower pace, and it is no problem to run forty or fifty miles an hour on a flatter road, and two hundred to three hundred miles in a daytime.

The distance from the source city to Akagi is only how much, people can walk on the uneven road in a day's time, the distance is between forty and fifty miles, if there is a carriage, you can run from the source city to the red city in an hour, three round trips a day.

If it is replaced by an ox cart, the speed of the ox cart is not much faster than that of a person walking, the key is to save effort, and people can sit on the ox cart or use the ox cart to pull goods.

It's just that the dragon tribe doesn't even have cattle, let alone any carriages, there are domesticated deer and sheep in the dragon tribe, and there were deer carts and sheep carts in ancient China, but with the body shape of deer and sheep, it is almost impossible to use them to pull the cart.

When Su Yan planned to build Chicheng, he considered the communication between the two cities, and there were no horses but people walking back and forth to communicate, so Su Yan set the distance between the two cities for a day's walk, if the dragon tribe had horses, the distance between the two adjacent cities could be widened.

It's a pity that there are no cows and horses to be found in this area inhabited by the dragon tribe, and I don't know what to use to find cattle and horses for domestication.

After arranging the affairs of Chicheng, he stayed in Chicheng for a few more days, and personally sent the expedition team led by Zhi to go on the expedition, and then Su Yan returned to Yuancheng.

The patriarchs of the Dragon Tribe are responsible for various things, Su Yan needs to deal with a lot less things personally, and the big development direction of the Dragon Tribe is controlled by Su Yan personally, mainly to list a big plan, the big plan contains a number of small plans, and strive to complete these small plans one by one, and the ultimate goal is to make the Dragon Tribe develop rapidly.

In addition to grasping the development direction of the dragon tribe, Su Yan's remaining thing is to create new things, from the snake tribe to today's dragon tribe, most of the fresh food in the dragon tribe is brought by Su Yan, because of these fresh foods, the dragon tribe has developed rapidly, even if the environment in the north is much worse than in the south, the dragon tribe can take root in the north and continue to grow and develop.

Foreign conquests, building cities, planting crops, domesticating animals, smelting and other matters are all the focus of Su Yan's attention, but since the Dragon tribe discovered the big rivers in the south, Su Yan has paid attention to one more - shipbuilding.

At the beginning, in order to communicate with the Eagle tribe on the left bank of the river, the dragon tribe made two wooden boats, one large and one small, but the wooden boats were temporarily abandoned because there was a pontoon bridge to communicate between the two sides of the river.

After the big river in the south was discovered, the shipbuilding project was restarted by Su Yan to build ships and build big ships.

The river hundreds of zhang wide is turbulent, it is very difficult to erect a pontoon bridge on this big river, from the north bank of the river to the south bank of the big river, you must use a wooden boat, the bigger the wooden boat, the better, the small wooden boat is easy to be dangerous in the turbulent river.

The dragon tribe is growing stronger day by day, Su Yan already has the idea of developing to the south, probably after the construction of the bamboo city is completed, Su Yan will send people to the south bank of the river to investigate the situation, now the dragon tribe does not know anything about the situation on the south bank of the river, and it is unwise to rashly develop to the south bank of the river.

However, exploration is exploration, and in a short period of time, the development focus of the Dragon Tribe is still in the north, and only a small part of the energy will be allocated to focus on the south.

Note: An hour in the book is 70 miles, but the reality is 20 kilometers per hour, which is not fast.