Last year was a flood, this year is a drought, Su Yan ordered the carpenters in each city to build a waterwheel finally worked, but Su Yan preferred not to use the waterwheel.

Since the beginning of spring, there has been a marked lack of rain in the area where the summer is located, and this situation continues until after spring ploughing, and even into summer, but fortunately, there are waterwheels, and the river water pours into the ditches in the fields outside the cities, moistening the arid fields.

The arid climate has an impact on the crops cultivated in the Xia Kingdom, but not too much, but the arid climate has more impact on other tribes.

Today's farming tribes live near water sources, and no matter how great the impact of the arid climate is, it is impossible to dry up the Yellow River or its tributaries, and many farming tribes living in the Yellow River basin are not short of water.

However, in the face of arid fields, many tribes do not have a convenient tool such as a waterwheel to drain water into the farmland, and each tribe can only work together under the leadership of the leader, using pottery and even stone tools to transport water from the river to the field, which is pitifully inefficient.

In some tribes, there are clever people who tie two large pieces of pottery to a single wooden root, and then carry a "flat pole" on their shoulders to carry water a little faster, but it is still too much different from the waterwheel of the Xia Kingdom.

The most obvious point is that the waterwheels of the Xia Kingdom do not require manpower, and through the ditches that extend in all directions, the river water directly moistens most of the fields, and other tribes do not have waterwheels, so they can only mobilize a large number of clansmen to carry water.

You must know that these tribes are busy getting food for a lot of time every day, and now they spend a lot of time carrying water, if it does not affect the access to food, it will affect the other work of the tribe.

But these tribes have no way, as a farming tribe, the population is at least 500 people, cultivating the fields is a very important way for the farming tribes to obtain food, if there is no guarantee that the fields will have some output when the autumn comes, next year the tribesmen will definitely live a life of hunger and fullness, or even worse.

Even if these farming tribes spend a lot of time lifting water every day, the efficiency is not comparable to the waterwheel of the summer country, and the crops will inevitably be reduced to various degrees during the autumn harvest, unless the arid climate passes quickly, but the summer is coming, and the arid climate has not passed, and the farming tribes are obviously disappointed.

Now the trading fleet of the Xia Kingdom is going to various tribes to trade, and the various tribes are more asking the Xia Kingdom, "Can our tribe trade some grain from your Xia Kingdom?" ”。

"No, our Xia Kingdom will not trade grain."

Trading grain, how could it be possible, in the face of the inquiries of various tribes, the three trading fleets all refused, and the Xia Kingdom itself was still stockpiling food as much as possible, how could it be possible to trade food to other tribes.

Unable to obtain food from this channel of the Xia Kingdom, thinking that their tribe may have a food crisis in the future, various tribes are trying to solve this problem.

As long as the grain is well placed, it can be stored for a long time, and each tribe knows this, and in the case of taking a lot of time to carry water from the river to the fields every day, the various tribes increase their investment in fishing, catch as much fish as possible every day, eat more fish, eat less grain, and save the grain.

Among them, there are also tribes who see that life is so difficult, and they have the idea of raising tribes to join the Xia Kingdom.

Natural disasters can be said to be the best way to grow the population of Xia Kingdom, some tribes can not bear the cold of winter and choose to join Xia Kingdom, some tribes choose to join Xia Kingdom because of the reduction of crop yields or even no harvest caused by floods, and now there are tribes who join Xia Kingdom because of the reduction of crop yields or even no harvest caused by drought.

The high-level leaders of the Xia Kingdom are both happy and worried about this natural disaster, and the joy is that other tribes will join the Xia Kingdom because of the natural disaster, and the population of the Xia Kingdom will increase, the development speed will accelerate, and the strength will continue to increase; What worries him is that he is afraid that the natural disaster will develop to the point that Xia Guo cannot resist.

In addition to the Yellow River Basin, these tribes with a population of less than 1,000 and more than 1,000 people want to join the Xia Kingdom, and the Xia Kingdom is also "receiving" small tribes from the northern jungle of the Yellow River.

These small tribes have a small population, most of them are between a hundred and two hundred people, and a few have a population of more than two hundred or less than one hundred, and the simple hunting tribe can not feed too many people, and the population of the snake tribe and the tiger tribe is only more than 100, and the population of the tribe has increased, but there is not enough food to feed all the tribesmen, and the population of the tribe is limited by the food obtained by the tribe.

These small tribes have a small population, but they can't stand a large number, and during the spring ploughing, two tribes accidentally bumped into the hands of the two cities of the Xia Kingdom, and were forced to stay by the two cities, and now the cities north of the Yellow River in the Xia Kingdom took the initiative to attack.

The hunting team went out to hunt, and at the same time looked for small tribes that migrated to the south, and at the end of spring, four more small tribes were discovered by the Xia Kingdom and forced to stay in each city, plus the two small tribes found during spring ploughing, the six tribes together have a population of more than 800.

Just discovered by the Xia Kingdom, the people of these small tribes are scared to death, there are too many "enemies", they are worried that they will be eaten by the "enemy", under the "threat" of the "enemy", they are forced to come to the home of the "enemy", they are shocked by the building, and they are even more surprised by the number of "enemies", one by one they can't even give birth to the idea of escaping, there are too many "enemies", they know that they can't escape.

Each city first settled these small tribes who were forced to return to the city, and all kinds of daily necessities were treated equally according to the people of the Xia Kingdom, and at the same time, the Ministry of Rites arranged people to teach the newcomers various common sense, and they began to live in the city from then on.

How long has the Xia Kingdom and the Dragon Tribe appeared, more than ten years ago, they were also hunting tribesmen, and the surrounding Xia people did not discriminate against these people from the hunting tribes, but smiled and gave some help to the newcomers, so that they could quickly integrate into the Xia Kingdom, the Xia Kingdom was originally a multi-clan tribe, and they didn't mind more newcomers joining the Xia Kingdom.

With the friendly help of the surrounding Xia people, the newlyweds have spent the first period of fearful days, and they are also willing to contact the surrounding Xia people, the two sides communicate with gestures, and the newlyweds are also learning some Xia languages.

Endless food, comfortable houses, no need to worry about beasts and enemies, everything makes the newcomers feel the beauty of the new life, before they also wanted to go to a place with a warm climate and rich food, although they don't know if the winter here is warmer, but the life here is beautiful they can't imagine, they are willing to live here all the time.