Last year, the three trade fleets brought back the leaders or witches of the six tribes for the first time, and this year there are only four, which shows that the peak period of the outer tribes joining the Xia Kingdom has passed, unless the Xia Kingdom opens up new voyages to contact more tribes, but the extreme climate change makes the Xia Kingdom unable to open up new routes, and can only do its best to protect itself.

Hardly any problems arose, and the four chiefs or witches who had come to the Xia Kingdom had already determined that their tribe would join the Xia Kingdom, and asked the king when their tribe would move to the Xia Kingdom.

As always, Su Yan was not in a hurry to let the four tribes move to the Xia Kingdom, until after the autumn harvest, when the four leaders or witches returned by boat, Su Yan also gave the four tribes a large amount of weapons and equipment to increase the strength of the four tribes.

The three trading fleets set out again, and at the same time brought the king to the tribes a message that the climate might change even more, and hoped that the tribes would prepare in advance.

Su Yan didn't think about covering up the news and not letting other tribes know, on the contrary, Su Yan wanted to let more tribes know the news.

Population has always been the biggest reason affecting the development of Xia Kingdom, and Su Yan has always wanted to make the population of Xia Kingdom increase rapidly.

Starting from the year when Su Yan was eight years old, the total population of the snake tribe that year was only one hundred and fifty-three, and when Su Yan was sixteen years old, the population of the dragon tribe exceeded one thousand, and when Su Yan was twenty-four years old, the population of the dragon tribe exceeded 10,000, and by the age of thirty-seven, that is, last year, the population of the Xia country had exceeded the 100,000 mark.

The increase in population has made the Xia Kingdom develop rapidly in many aspects such as military, production and life, and the increasing population is very important to the development of the Xia Kingdom.

And to make the population of Xia Kingdom increase rapidly, in addition to letting the people actively have children internally, only human beings outside Xia Country can join Xia Kingdom.

The key is that there are so many people in this era, and it feels like a lot of five million people can survive on the entire planet, and I am afraid that there are only a few hundred thousand people in the Yellow River Valley, even if the Xia Kingdom collects all these populations, it will not be enough for Su Yan.

What's more serious is that extreme climate change is shrouded in this land, and various natural and man-made disasters caused by extreme climate change have caused the population of this land to continue to decrease.

Therefore, Su Yan will not cover the news, just like the last time he told the tribes he knew about the news that "the duration of winter has increased and become colder", this time he will also tell the tribes, so that the tribes can make various preparations in advance, so that more tribes can survive the natural disaster, and the tribes that survive the natural disaster will be the future goal of the Xia Kingdom.

Day and night in a day, spring, summer, autumn and winter in a year, day and night are constantly circulating, and the four seasons of spring, summer, autumn and winter are also constantly circulating.

Extreme climate change looms over the earth, but Su Yan believes that this extreme climate change is only temporary, there will always be a day in the past, and all that remains is the question of how long the extreme climate change lasts.

The temperature change in this spring gave birth to an idea in Su Yan's heart, Su Yan suspected that extreme climate change has reached a high/tide, and as long as this high/tide is crossed, although extreme climate change will not disappear all at once, it will slowly subside.

As long as it withstands the past few years, it will be a victory, and what Su Yan has to do is to let more tribes survive this difficult period.

Of course, no matter how difficult the various tribes were, Su Yan would not allow the Xia Kingdom to trade the grain, for fear that the grain stored by the Xia Kingdom would not be enough to eat at that time, and if necessary, the Xia Kingdom would even refuse the requests of other tribes to join the Xia Kingdom.

As the three trading fleets continued to advance, one tribe after another got the news.

"How is that possible? Why is this happening? Will our tribe be able to hold on? ”

"More serious changes? No matter how serious the changes, our tribe will be able to continue to survive. ”

"For the sake of the tribe, we need to make more preparations, and we must survive the natural disaster."

"Otherwise, our tribe also chooses to join the Xia Kingdom, the Xia Kingdom is so strong, it will definitely be able to survive the natural disaster."

After the news spread throughout the tribes that Xia Kingdom had met, various ideas appeared.

Some tribes are pessimistic, believing that under the natural disaster, all tribes will be destroyed, even the most powerful Xia Kingdom, which is the god who wants to destroy us.

Some tribes did not lose their faith after learning the news, but instead strengthened their faith and made more preparations to survive this natural disaster.

There are also tribes who think that they can't survive the natural disaster, thinking that the Xia Kingdom has passed the news twice in a row, and thinking of the strong Xia Kingdom, they think that the Xia Kingdom is the most likely to survive the natural disaster, and it is better for the tribe to join the Xia Kingdom, so that the tribe can continue to survive.

In addition, there are all kinds of ideas mixed within the whole tribe, the ideas are not unified, the whole tribe has become chaotic, and even the normal production and life are affected, if this chaos cannot be dealt with as soon as possible, it is not known whether the natural disaster can be passed, and it will be difficult to survive the food war in late spring and summer.

The Sun tribe and the fishing tribe also got the news of the Xia Kingdom, and after getting the news, they made the two tribes firm in the idea of starting a war, and obtained more food through the war, only enough food can allow the two tribes to survive this natural disaster, if there is no food, the tribe will be in danger.

Spring ploughing is coming, compared with last year, this year's spring ploughing is postponed not by one or two days, but by twelve days, and even now, it is only barely enough to plant crops.

When spring ploughing arrived, even the school stopped classes, and the minors went together to help the adults cultivate the fields.

The number of cattle and horses in Xia is not much, and there are still a large number of manpower plows ploughing back and forth on the fields.

With the efforts of most of the people in the Xia Kingdom, one field after another was cultivated.

Under extreme climate change, crop yields are bound to decrease, in order to be able to harvest more food, the only way to increase crop yields is to cultivate more fields, to cultivate the scale of the fields, to increase crop yields, not to expect this year's crop yields to exceed last year's, only hope not to be much less than last year's crop yields.

All the cities of the Xia Kingdom were established near the river, and fish was also one of the important foods of the Xia Kingdom.

This year is expected to be another rainy year, last winter's heavy snowfall, spring ploughing encountered two rains, Su Yan has ordered all cities to prepare for floods, especially the three new cities last year, as far as possible to mobilize manpower to dig ditches in the farmland.