Water and drought are the pursuit and the biggest dream of the farming nation. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

The construction of water conservancy facilities was necessary in the era of cattle farming. The huge benefits brought by irrigated agriculture are far from being comparable to those brought by the sky, which Chen Jian knows very well, especially when Ehuang said that a major drought in seven or eight years made Chen Jian full of vigilance, Echeng has a calendar and priests, and they will record these things, not just talk about it.

Most of the land in Summer City has no irrigation facilities, and last year was a good year, so it was a good year, but you can't put all your hopes on a good year.

The Grass River flows from west to east, making a big bend to the south near Xiacheng, and the water area near Xiacheng is Luodao, which lies in the middle of the Grass River, dividing the Grass River into two.

The water on the side near Xiacheng is deeper, the water on the south side of Luodao is relatively shallow, Luodao is two or three miles long, the whole island is natural stones, only there are some sandy beaches near the shore of the island.

The land to the east of Xia Cheng is very low-lying, basically plain, and you can't see anything when the wind and rain are good, but once it encounters a flood, the rushing grass river will directly impact the fields east of Xia Cheng because of this southward bend.

At that time, although it will not be a human or a turtle, the most fertile land in Xia City will be submerged and there will be no harvest.

Whenever there are pros and cons, this low-lying plain also provides convenience for artificial irrigation.

When he chose to settle here, in addition to the struvite on Luodao Island, which can support the land in the early stage, Chen Jian also took a fancy to the topography of Luodao's river.

This natural aqueduct can achieve great results with a small amount of work.

The twenty or thirty people standing on the top of the mountain still didn't understand what Jian Chen was thinking, and E Huang was even more strange about what Jian Chen asked, wondering if people could really defeat heaven and earth?

Chen Jian pointed to Luodao Island in the distance and the farmland downstream: "If it really comes to the time of flood and drought, praying to God is useful, and people are safe and sound, but people can wait for the water and drought to go down, but the crops can't wait for that time." ”

"What can I do then?"

Chen Jian stretched out his hand back, and the red fish took out a silk silk from a bark tube and handed it to Chen Jian.

Spread out on the ground, it was two steps wide, and it was a patchwork of several pieces of silk, and it was dark when the red fish was sewing, and there was a small hole in it that was burned by the fire, and there were a few drops of blood punctured by bone needles next to it.

A group of people gathered around the silk silk, and at a glance, they recognized that they seemed to be Xia Cheng and Caohe, but they were a little different.

The fields are still fields, but there are some traces of criss-crossing, as if it is the wellhead of the well in Yangguan, dividing the square field into a tic-tac-toe, and the division looks like a dug river channel.

The location of the island has also been changed, and there is a non-existent river from the tail of the island, which is connected with those tic-tac-toe.

This kind of practice of drawing the appearance of heaven and earth on the map first has been seen many times, but this time it is a little terrifying, originally they were facing a small river three or two steps wide, but this time they were facing a grass river nearly a hundred steps wide.

Chen Jian pointed to the tic-tac-toe grids above and said: "These are the canals we want to dig, and a six-step-wide river channel will also be dug out of the place below Luodao to bring water into the canal, which can be irrigated in the future." ”

"Last year, I asked the slaves to divert water from a wheat field of about ten acres, and you have seen the results, don't you want your land to have that kind of yield?"

The hearts of the onlookers were pounding, the wheat field of ten acres was very small, and it was not a big deal in Xia City, and few people paid attention to it.

But when the wheat was harvested last year, the 10 acres of land produced a total of 2,100 catties of wheat and 1,300 catties of peas, and the yield was almost 50% more than the average yield of Xia Cheng.

The seeds are the same seeds, the fertilizer is the same fertilizer, the only difference is that the ten acres of land have been irrigated.

And this is the result of last year's wind and rain, a rain during the filling period made the wheat full, if there is a drought, I am afraid the gap will be even greater.

The vision was good, and the fact was that the chiefs knew the benefits of irrigation.

But the grass river is drawn in the picture, but the arm is wide, and it is difficult to shake it when it comes to reality, and the clansmen are a little afraid in their hearts.

E Huang swallowed even more, if it is really like this, then it is really a change of heaven and earth, can the people of Xia City really do it? If the people of Xiacheng can really make such a world-changing move, then within these hundreds of miles, whether it is the Acropolis or Echeng, who can resist it?

"Ji Xia...... How long is this going to be dug up? ”

"The six-pace-wide river has to be dug one hundred and eighty paces, and there is a depression where I have not allowed you to reclaim, and which is connected to the grass river by this channel. Then dig a one-step wide canal into the farmland from this depression...... According to the calculation on the map, the canal is a total of 50,000 steps, five vertical and five horizontal, and can irrigate about 60,000 acres of land. ”

Once the number is tens of thousands, the clansmen sound a little scared, and the city walls of the entire Xia City are only a thousand steps, but the number that Chen Jian said has directly reached 50,000 steps, isn't this a large construction volume of fifty Xia Cities?

Chen Jian looked at everyone's expressions and knew that they were frightened, so he hurriedly said, "Don't be afraid, it's not going to be completed within a year." 60,000 acres of irrigated land, two years and three crops, even if one acre of land can have 250 catties of grain a year, if it is really completed, do you calculate how much grain we can harvest in a year? ”

Even people like Yu Qian'er and Hongyu, who often come into contact with thousands of people, couldn't turn around for a while, and after a long time, they looked at the zeros behind the numbers and counted them little by little.

"Don't count it, the average annual grain is fifteen million catties, and the entire Xia City plus the slaves and wild people are all counted, and each person can share two thousand catties. We can't eat so much for the time being, but when the children grow up, they can eat. We can't finish digging for the time being, but the children can dig it. When the children are old, their children can still dig, why can't the children and grandchildren finish digging? ”

Fifteen million catties is how much, these people have no concept yet, but each person counts the average of 2,000 catties of slaves, which is already appalling.

Half a year ago, Jian Chen told them about the population crisis in Xia City, and in ten years, the leaders may be dead, but their children are still there.

Because of the existence of E, Jian Chen didn't say it directly, but every leader thought of that conversation from the child.

After listening to that number, E's mouth opened wide, and she said in her heart that Echeng has accumulated for so many years, and everyone may be able to share two or three thousand catties of grain, but that is not a slave, and it has been accumulated for several years, Xia Cheng will catch up with Echeng for five years in one year?

Chen Jian ignored everyone's surprise, pointed to the silk silk, and continued: "In the future, these places will be reclaimed, and this year, counting the public property and various tribes, all the land is 34,000 mu." There are about 20,000 acres of land in the east of the city, and the ditches are all east and west, and we only need to dig four north-south canals this year to irrigate the existing land, but it is only a ditch of 20,000 steps. ”

The clansmen were very sensitive to the word "that's it", and muttered in their hearts, Chen Jian calculated for a moment and said: "One step deep, one step wide, 20,000 steps long, but 20,000 square meters...... Well, it's only seven or eight hundred thousand baskets. Counting all the laborers and slaves in Xia City, there are more than 4,000 people, counting the unevenness, and each person has an average of 300 baskets of soil. ”

Of course, it's easy to calculate, but it's far from easy.

It's just that Jian Chen averaged the huge amount of work on everyone, so that they could be relieved, lest they be afraid of this huge number.

The clansmen may not be able to figure it out, but the long-term trust in Jian Chen has always put them at ease.

Chen Jian hit the railway while it was hot: "The 20,000 acres of land only have 10,000 acres of wheat and peas, and the filling of grain in mid-April is the most important time for water, so we can dig out the canal of this 10,000 acres of land first." After sowing, the whole city worked hard for half a month, and how could it be dug up, do you say? ”

"The rest can be dug later, and when these canals are finished, we will dig out the channel that diverts water from the Grass River. In this way, when the wheat is filled, it can be irrigated, not to mention, at least the 10,000 acres of wheat field, how can you harvest 2 million catties of wheat and peas. ”

"Finally, let's build another Luo Island, which may take a long time. Downstream of that diversion river, we're going to build a small stone dam. In times of drought, stone dams can store water; In times of flooding, the current will naturally break the dam. Let's dig a canal on the south bank of the Caohe River, and there will be a depression below, and once the flood comes, the extra flood water can flow from the canal on the south bank to the depression. ”

"When everything is done, then it can really be regarded as a drought and a subordinate. Since we're going to live forever in Summer City, we have to leave something for the children, don't you think? ”

After some agitation, the leaders were a little moved, so calculated, in fact, the amount of work is not too large.

"There is just one point, this matter is related to the interests of various clans, so this cannot be regarded as levy and conscription, everyone must participate, and the grain is provided by each tribe, the only promise I can make is to make this year's wheat yield twenty catties more per acre!"

"After this month, the rest will be dug up in batches as servitude. Chiefs, let's talk about it as if we were in the council now. ”

Several leaders glanced at each other, nodded and said, "Since all clans benefit, then dig it." It's just half a month's work, and it's not yet time to weed, we bring our own food, Ji Xia doesn't have to worry about these things, as long as you divide how much each clan wants to dig. ”

Seeing that everyone agreed, Jian Chen was relieved.

Water conservancy projects do not happen overnight, and it may take five years to complete all the plans on the silk.

But the water conservancy project continued to be extremely well organized, and until he saw the huge benefits of irrigation, Chen Jian's use of the power of the city to drive forced labor could lead to resentment.

The reason why he is so anxious is that in addition to worrying about the flood and drought disasters this year, he also wants to use the last afterglow before the disintegration of the clan to complete such a project.

It is already inevitable that the family will replace the clan, and once harvested, the model of cassa and others will cause a chain reaction.

The disintegration into a family will also reduce the corresponding organizational power, and it is unlikely that this large-scale, almost unpaid labor will continue.

Water conservancy can only be built on a large scale if it is organized together, because water conservancy is a system, and it is not a family unit that only cares about the little canal in its own field.

Moreover, when the time comes, the land is scattered, and it is impossible for all the canals to be irrigated, and those families who cannot be irrigated will always be dissatisfied, feeling that their efforts are in vain, and without systematic planning, the canals will eventually be abandoned, and it is too late to think about digging them when the natural disaster occurs.

As long as the people can see the results of water conservancy within a year, it will be much easier to organize in the future, and the rest of the projects can be completed in batches, which will not hurt the city and bones, and will form a customary habit of building water conservancy. (To be continued.) )