It is another harvest season, and most of the clansmen put down their work and participate in the autumn harvest together.

The granaries of each city were emptied, and the old grain in the granaries was distributed according to the number of people in each family, and a small portion of the new grain harvested this year was distributed to the clansmen, and the rest was stored in the granaries.

However, this year's output is nearly 20% more than last year's, and after all the granaries are filled, there is still a surplus, and the remaining new grain is also distributed, and according to the king's instructions, the lords of each city have set a plan to build new granaries next year.

Once upon a time, everyone lived a life of hunger and hunger, and adult males were the main hunters of the tribe, and the food obtained by the tribe every day was given priority to adult males, and adult females and minors could only get food that barely survived.

Even in the autumn when food is the most, everyone gets up early and greedy for food for the winter, but many times there is not much food left before the end of the winter, so they can only go out hunting in the cold and danger.

They used to think that eating enough food every day was a happy life, but now they have done it.

Time passed, the three trading fleets had stopped sailing, and the Xia Kingdom was making final preparations for the winter, and the food had been prepared, leaving only firewood and grass for winter heating.

The temperature drops day by day, and the first snow of winter falls, forming a thin layer of ice on the surface of the water.

"Husband, it seems that this year's winter will be a few days earlier than last year." Looking at the snowflakes falling from the sky, Eyue said with a frown.

"yes, maybe it's cold winter."

As martial artists, Su Yan's family is more sensitive to the perception of the outside world than ordinary people.

Su Yan thought that this year was another cold winter, the cold winter was just colder than the usual winter, and the snake tribe was still unbearable, and the current Xia Kingdom was not allowed to worry about the impact of the cold winter on itself, after all, there was a small chance that there would be two cold winters in a row.

However, in the afternoon a few days after the beginning of winter, the deer witch, the snake witch, and the tiger witch came to the palace together, and their faces were quite serious.

"What happened?" Su Yan asked.

Deer Witch pulled out a piece of paper from the folder, and on the paper was a table with words written on it.

"Wang, please see, this is the time when the water froze last year, this is the time when the water froze the year before, and today is the time when the water froze this year." Deer Witch said, pointing to the form on the paper.

Su Yan looked at the records in the table, and then knew that for several consecutive years, the time for the water to freeze in the area where Xia Guo was located had been advanced, and Su Yan's face became serious, there was a problem, there was a big problem.

Before the Xia calendar was formulated, Xia had an alternative method of dividing the four seasons of spring, summer, autumn and winter, when the first snow or water froze, that is, the end of autumn and winter arrived, when the ice melted, that is, spring arrived, spring three months and 90 days, summer three months and 90 days, autumn first two months 60 days, the third month of the day is indefinite, and the same is true for winter.

Although Su Yan was also involved, the formulation of the calendar was not a simple matter, and it was necessary to constantly record environmental climate change to determine the time of the 24 solar terms, and it would take more than ten years or even decades to formulate a calendar applicable to the Xia Kingdom.

The Ministry of Rites has been recording the changes in the environment and climate, and through the comparison of records, a big problem has arisen, so there are three witches to meet Su Yan together, this matter is too important, because this matter will seriously threaten the survival of the people of the Xia Kingdom.

Luwu said, Su Yan listened, also watched, the record years forward, every year the water freezing time has been before and after, only in recent years, three days earlier, two days earlier, four days earlier last year, six days ahead of this year, fifteen days ahead in a few years.

Looking at another record, the ice melting time was delayed by two days the year before last, the year before it was delayed by one day, and last year it was delayed by two days, although the postponement time added up to only five days, but then counting the time before the water froze, it can be clearly seen that the winter time has increased, and the increase is not one or two days, but ten, twenty, or even thirty days.

The total time of the year is so long, the increase in the time of winter, which means that the time of other seasons is reduced, agricultural planting is the most important way to obtain food in the summer country, agricultural planting pays special attention to climate change, but now the climate of the region where the summer country is located is constantly changing, once the change is too large, it will definitely have a huge impact on the agricultural planting of the summer country.

A small reduction in production is only a small problem, once the large-scale reduction in production or even the harvest is lost, the impact on Xia will be very serious, and the problem of food is a big problem.

The three witches don't want to, and Su Yan doesn't want to, they don't want the time for water to freeze every year to continue to advance, they don't want the time for ice to melt to continue to be postponed every year, and they don't want the time of winter to continue to increase.

Maybe this is just an extreme climate change that lasts for a few years, and the climate will return to normal in the past few years, and now Su Yan and the others can only think like this, they can't make much changes at all, that is the force of nature, not human beings can fight against it.

Pray to God?

Although no one said it, all the high-level officials of the Xia Kingdom understood in their hearts that the gods should not exist, and they should not have too much expectations for the gods, and the efforts of the kings and clansmen in the Xia Kingdom can have today.

"Go back, keep taking notes, I'll make some arrangements." Su Yan said helplessly to the three witches.

The three witches are also very helpless, all they can do now is to record the climate change and hope to find a way to deal with it.

After the three witches left, Su Yan went to the study and wrote down a new item, "Food Reserve Plan", in a folder that recorded next year's events.

No matter how much the climate changes, food is the most important, as long as Xia Guo has enough food reserves, even if he no longer obtains food, he can ensure that everyone in Xia Country can eat for two years or even more, and if there are some natural disasters of short duration, Xia Guo does not need to be afraid, resist natural disasters, and life will go on.

Reclaim more land for farming, catch more fish for salting, and stock up on as much food as possible.

In the dream, Su Yan seemed to see a planet covered in ice and snow, cold, food scarce, and a large number of beasts and humans died, this is the Ice Age!

"Nope! Call! Call! Su Yan woke up from the nightmare and gasped for breath, the scene was terrifying, if it was really like the nightmare, even the Xia Kingdom would be destroyed in this ice age.

"What's wrong with my husband?" Beside Su Yan, Xiangxiang asked with sleepy eyes, and even the plum blossom sister was woken up by Su Yan's voice.

"It's okay, I'm having nightmares, let's go back to sleep." Su Yan shook his head and said.