After the speech, Long did not stay in Lion Roar City for too long. The next day he said goodbye to Owen and returned to the wilderness with his accompanying sub-campaign and guards to prepare for migration and other things.

Obviously, he will be very busy next time.

Two weeks later, Wuming, a capable general of the Ghost Man, led a group of submen of different races to the junction of the wilderness and the Kanan Desert.

In addition, they also brought more than ten carts of dried wheat straw, as well as various necessary tools and supplies.

Most of these things are provided by humans.

"Please gather together! I want to explain to you what the desert control work here is specifically to do."

A lizard man (green lizard tribe) who knew human words was holding a booklet with the "Sand Control Plan" printed in his hand and shouted loudly to the sub-ethnic races present.

This "Sand Control Plan" was previously written by Irving, who asked Alpha to retrieve scientific sand control materials accumulated by a great country in the Earth Alliance in the past and compiled them into a book and printed them.

"Hurry up and gather!"

Wu Ming, who was appointed as the captain, also urged: "Line in line here, hurry up!"

Hearing this, the Asians put down the handles of the wooden cart, gathered in the open space in front of the lizard man, and lined up to stand.

After counting the number of people, Wu Ming turned his head and said to the lizard man beside him: "All the people are here, and you can explain and assign today's mission."

"Please listen carefully. If you don't understand, you can wait until I finish speaking."

After opening the "Sand Control Plan" in his hand, the lizardman began to introduce the above sand control methods to everyone.

"What our team needs to do is to make a square lattice sand fixing method. The specific steps are as follows..."

Grass square is an effective sand control method that can prevent wind and solidify sand and nourish moisture. Its production can be divided into three major steps—

The first step is to grab a handful of dried wheatgrass, slap them along the wind, and shoot down the bad-quality wheatgrass that are relatively broken, leaving only the long wheatgrass with good quality.

Submen who do not have scales or exoskeletons on their hands covering the epidermis can wear gloves to do this job. After all, it is dry wheat straw. It may accidentally pierce the skin when grasping it directly in your hand.

The second step is to neatly place the processed dried wheat grass on the square edges drawn in advance on the sand. The middle part of the dried wheat grass should be aligned with the edge lines, and the specification is 1×1 meter.

When placing, be careful to keep the thickness of the dried wheat straw moderate, neither too thick nor too thin.

If it is too thick, the dried wheat straw will easily fall down under the influence of its own gravity and will not be easy to stand.

But if it is too thin, the grass grid's windproof and sand-fixing ability is not strong enough to prevent the Kanan Desert from continuing to erode northward.

The third step is to pick up the tool shovel, press it hard along the square edge, insert the middle of the dry wheat grass into the sand, and the two ends will be erected to form a natural barrier, and the height can be maintained between ten to twenty centimeters.

After pressing, the sand on both sides of the dry wheat straw should be pushed to the roots so that it is firmly fixed to the sand.

In addition to the good windproof and sand fixing effect, the grass grid also has strong moisture conservation function, and the effect of controlling snow in winter is as high as 100%.

Building a grid of grass does not mean that the sand control work is over. Sand control is a long and large project. In the future, plants can be planted in the grid to further strengthen the ability to prevent wind and sand.

In addition, dried wheat grass is a dry dead object after all. After four to five years of piercing, it will be corroded and rotten, and it will need to be replenished.

“…The above is the production process of the grass square sand barrier.”

After closing the "Sand Control Plan" in his hand, the lizardman looked up and glanced at the sub-ethnic races present, and asked: "Do you have anything to ask? Just ask me a question."

“I have a problem.”

A green beast tribe in the team raised his hand and said, "What you just said is one meter, ten centimeters and twenty centimeters. How long are these lengths? I don't have this concept."

Khan! I actually want to explain this.

The Lizardman did not mean to despise the Green Beast Clan. He did not know how long one meter and one centimeter were before, and only after studying in Bianjun Town.

No wonder the leader said that the educated population is a high-quality labor force, and its work efficiency is far higher than that of the uneducated population. As expected, the Lizardman suddenly understood what Irving had said before.

Walking to the wooden cart, the lizard man picked up a bundle of long ropes, raised them and said, "This is the tool you need to use to draw square edges later. There will be a mark every meter on it. You can just use this bundle of ropes to measure it."

After saying that, he turned around and put the long rope back, and found a wooden ruler from it and showed it to the people of the people.

"There is also this wooden ruler. For your convenience, it only has two scales: ten centimeters and twenty centimeters."

It turns out that the tools were prepared so well, and the sub-ethnic races present were relieved.

After putting all the tools back, the Lizardman asked everyone again: "Is there any other problem?"

"have!"

This time it was the demon snake clan raised his hand, and he spitted out a letter.

"Why must the grass square be 1×1 meter in size and 10 to 20 cm high?"

This problem has nothing to do with work, but the lizard man doesn't mind explaining to them the principle of grass grids to prevent wind and sand.

Open the "Sand Control Plan" in your hand, the Lizardman quickly found the corresponding explanation and read it to everyone according to the above content.

"After practice, it has been found that other forms of grass walls, such as rectangles, triangles, prisms, and rounds, are not as good as squares, that is, grass square sand barriers. Among them, grass squares with a size of 1×1 meter and a height of 10 to 20 cm are the best sand protection effect."

"The main reason is that the center part of the grass square with a specification of 1×1 meter is hollowed out by the vortex generated by the airflow for only about 10 cm. However, other specifications, such as 2×2 meters and 2×3 meters, the center part of the grass square with a specification of 2×2 meters is deeply eroded, and the sand is not well consolidated and prevented."

"In addition, in general, the wind mainly transports sand grains within ten centimeters of the surface. If this height exceeds this height, the sand transport volume is very small. Therefore, the height of the grass grid is between ten and twenty centimeters. There is no need to be higher than twenty centimeters. If it is lower than ten centimeters, it will lead to poor windproof and sand fixation effect."

After hearing this explanation, the smart sub-ethnic race nodded clearly, while the sub-ethnic race with poor brains looked confused.

"If you can understand, just understand, just forget it if you don't understand."

After closing the booklet, the Lizardman does not force every sub-human to understand the principle of grass squares.

"Anyway, I don't know it, it won't hinder your desert control work."

Since the other party said so, those stupid sub-ethnic races simply gave up using their brains.

"The next question." The Lizardman asked again.

"That's so unpleasant."

The tall Red Devil tribe scratched the back of his head and said, "You just talked so much in one breath. I'm so immense. I still don't know what to do. Can you ask me to demonstrate it?"

"well--"

Hearing this, the Lizardman couldn't help but sigh. The Red Devils are really a representative of thick limbs and simple minds.

Sure enough, we cannot expect all the submen to understand the production process of grass square sand barriers by listening to the explanation.

There was no choice but to walk to another wooden car, grab a handful of dried wheat straw, and demonstrate to everyone in person.

"You all took it seriously for me."

The Lizardman and the Captain Wu Ming each demonstrated once. After confirming that all the Asians had figured it out, everyone started today's desert control work.

Except for stopping for lunch at noon, everyone worked until evening before packing up their belongings to return to the camp where they were resting.

He raised his hand to wipe the sweat from his forehead. Wuming looked at the spectacular scene of the net-shaped grass grid connecting the sand, and felt a sense of accomplishment in his heart.

"I really hope this will prevent the Kanan Desert from continuing to erode northward, even if it reduces the erosion speed."

"It must be possible."

After accidentally hearing Wu Ming's words, the Lizardman replied with a confident look on his face: "I believe in the leader. He has created so many miracles and will definitely conquer the Kanan Desert."

"Um."

Wuming nodded slightly, then turned around.
Chapter completed!