Fan Jingjing also did not give priority to the development of old developed land, because it could give these lands a longer rest, but the land that was once opened up also represents the topography of this place, if it is more suitable for human habitation.

If it is uninhabitable, such as a swamp or wasteland, it will be left behind.

However, the terrain can change at any time, and the swamp may turn over time into humus-fertile soil.

The population of Fan's Manor is not very large, so Fan Jingjing will first do a geographical survey and find that after a landform changes, a new arable land will be developed.

I don't know if this place was developed by someone else thousands of years ago, because the improvement of a river, or the new generation of a river, can cause the rise or destruction of a village.

Make sure that the river becomes the ability of the Fan family manor.

With artificial rivers, it is possible to change a place at any time, as long as the soil can, and changing the water system creates more arable land.

However, there are many problems in the upstream and downstream of the river, because if it is in the upstream part, there is no problem, but if it is in the downstream part, it may have to eat the feces of the people in front of it.

When dealing with these things, Fan Jingjing admired the government of later generations to control the big long rivers, and how to control the water source so that every place can drink clean and clean water, and there is no big problem.

Fan Jingjing has a very big problem just dealing with the upstream and downstream of the village, he knows that in this era, all agriculture must rely on these earth water sources, once the water source of the earth is insufficient, it is a trivial matter for the upstream and downstream villages to turn against each other.

As long as many villages live nearby, especially if there is a river connection, the relationship is never too good, and there is often a problem of water grabbing between the upstream and the downstream, and the upstream will find a way to keep more water so that they can produce paddy fields.

In this way, the downstream is the most suitable for growing paddy fields, but because they cannot bring water, they can only grow dry fields.

When upland fields are planted, the yield is not as high as that of paddy fields.

Comparatively, the paddy fields will be richer, and the dry fields downstream will become more difficult, but in the urban era, the problem of water is no longer the biggest problem in the local area.

Water is brought from far away, while the downstream is relatively flat, and transportation facilities are easy to build, so it often becomes a place of development, so what was once a place of hardship becomes a place of abundance.

In the areas where rice was originally grown and life was relatively wealthy, compared to the places where the cities developed, it became a place of population loss, because the water became dirty, and there was no way to irrigate the paddy fields, and their paddy fields also had to draw water from the reservoirs, otherwise the fields would dry up.

The water in the reservoir also has to be paid, not free, so their days also began to become sad.

So people slowly left this rich paddy field and went to the city to beg for a living, and the boundary between people is no longer divided by the river, but Fan Jingjing knows that in the Tang Dynasty, there was not too much industry and commerce, and the river could still be kept clean.

As long as the distance is not too close, the pollutants of this era can self-precipitate and will not form heavy metal pollution in the river.

Instead, the so-called pollutants form fertilizers and become nutrients for the place.

Of course, it is best to use this water for irrigation, but if it is used for drinking, it may have to be boiled and settled.

Water is not clean, but people are very accustomed to drinking raw water, because if you want to drink a hot water, then you have to boil, you need to cook you must waste firewood, don't think that firewood, you can pick it up anywhere, in populated places, firewood will become more and more difficult to obtain, want to have enough firewood to burn the foot water, it is very difficult, most of the time people can only drink raw water, and use these firewood for cooking If you want a lot of firewood, then you have to spend money to buy.

Every penny was precious to the peasants, because when they wanted to go to the town or city to buy something, they had to use the money or some women in the countryside could weave cloth.

But without tools, it is impossible for women to weave even if they want to.

Most of the women who weave cloth must also have some raw materials, which are produced in the Jiangnan area, so women in the Jiangnan area often have a second job, so because both men and women are working, the income in the Jiangnan area will be better.

However, women in the north cannot find a suitable job for themselves, so they can only work with men at home, but men can play a far higher efficiency than women. They can only be farmed by men and free-range by women.

If there are too many women in the family, it is basically a loss-making business for these farmers, and they want to have more boys, because boys can not only carry on the lineage, but also contribute more work.

Of course, when the children grow up, they will have to divide the family property, and it is not too difficult for them to divide the family property at this time, so they try to find a way to open up a new piece of land on the outskirts of the village, because in this era the village and the village are not connected together, often separated by a distance, and in the middle are some three-way areas, so to speak, a place between villages to maintain each other's safety.

But sooner or later, these lands will be connected together, because their children continue to open up new land in the marginal areas, and the population will become more and more as the Tang Dynasty stabilizes, and every war will lose a lot of people.

After losing a large number of people, once people have stabilized, they will desperately survive.

They always feel that the current population is not enough, maybe they need to have more children to be able to continue the family inheritance, if they don't have more children, maybe when they flee, no one in their family will be able to survive.

For a family, the family inheritance is always important.

In terms of every family, women have to work hard to give birth, relatively speaking, the south has not encountered so many wars, so the population loss caused by the war is relatively small, but the south does not attach great importance to women, because women are always not as strong as men.

A woman does not have the strength of appearance, but she has a tough personality, and it is difficult to survive because she is poor or weak.

Otherwise, he would not have the courage to continue living, and it would be very sad to know that he had to bow his head to others.