Escape From the Library

【Green Water and Green Mountains-End】

Yue Xingwen and Jiang Pingce sat outside and kept watch until 3:[-] in the morning. The expected sandstorm did not come. The two were too sleepy, so they went back to the base to change shifts, and asked the second group of students to continue the night watch.

When he woke up the next morning, Yue Xingwen found that their project was intact.

There was no wind last night, and today's weather is rarely sunny.However, if the sandstorm doesn't come, everyone can't rest assured. After all, their project has not been tested, and no one knows whether it is a success this time.

Yue Xingwen looked at Lin Manluo and asked, "Senior Sister, do we have to wait for a sandstorm and confirm that the project is all right before moving on to the next step, or should we continue today?"

Lin Manluo frowned and thought carefully for a moment, then gritted her teeth and said, "Let's wait and see. In case there is a loophole, we are in a hurry to proceed to the next step. If the planted plants are destroyed by then, it will be too late to replant, and the funds will also be exhausted." won't be enough."

Jiang Pingce agreed: "The acceptance of the first phase is successful, and it is safer to continue with the second phase."

It's just that their projects have not been accepted by higher-level professionals and can only be handed over to the library for verification.

On the following day, everyone simply took a holiday, stayed at the base to rest, and paid close attention to the weather outside.

Since there is enough light during the day, there is no need to stay outside to observe in person. Ke Shaobin only needs to put the small picture outside, and every few minutes, it is enough to take a picture and transfer it to his laptop.

Twelve people sat together, chatting and waiting for the sandstorm.

A whole day passed, but the sandstorm still didn't come. Liu Zhaoqing sighed: "This library doesn't come when it should come, and it makes surprise attacks when it shouldn't come. It's really annoying."

Yue Xingwen reminded: "Don't relax, continue the vigil tonight."

In the evening, the students in the second group waited until 3 o'clock in the morning, but still did not wait for the sandstorm. Zhuo Feng said in a low voice: "If the sandstorm doesn't come, we can't wait forever? I'm worried that the time for planting trees in the third stage will be too late." not enough."

Lin Manluo gritted her teeth and said, "Wait for two days at most. If there is still no movement the day after tomorrow, we will continue to the next step."

I don’t know if the library was trying to wear down their patience on purpose. The night was still calm until the afternoon of the third day, when Ke Shaobin wanted to go out of the house to take a look. Face.He immediately shouted excitedly: "Come here!" The other students rushed out and looked into the distance together.

The strong wind really drove the quicksand to rush towards them, and the momentum was like a galloping horse!However, after the sand encountered the first layer of barriers, it was partially intercepted by the wall, and a lot of sand rushed out from the sand discharge port and continued to rush forward——

Billowing yellow sand rushed towards them quickly, this time the wind was much stronger than the first sandstorm at night!

The palms of the students were sweating, for fear that their projects would be destroyed again.

What is gratifying is that after being blocked by layers of sand barriers, the amount of quicksand has been significantly reduced. By the fifth floor, there was very little left. On the sixth floor, the quicksand was completely blocked by the wall!

And the barrier they designed has a total of eight layers.

Lin Manluo almost jumped up excitedly: "Successful!"

Ke Shaobin was also very excited. He looked back at the farmland not far behind him and said, "There are still two layers of walls that are useless, that is to say, even if there is a stronger sandstorm than this in the future, the quicksand will not flow to the farmland." ?”

Lan Yarong patted Lin Manluo's shoulder with a smile: "Manluo is doing well. In this way, our task of windbreak and sand fixation is half completed. These eight layers of barriers are enough to ensure that the cultivated land around the town will not be destroyed."

Lin Manluo's heart was finally relieved these days, and a smile appeared on her face: "Great, this is the result calculated by everyone, and now it has finally been verified!"

Yue Xingwen breathed a sigh of relief, and exchanged glances with Jiang Pingce.

He was also very nervous these two days. After all, the funds in his hand were running out, and the worst plan was to go back to the first floor to rebuild after failing the course.But the facts have proved that their data calculation and sand table model drills are still very effective, and the project based on the model is very perfect!

It will never be like in the beginning, when the sandstorm comes, the defense project will collapse directly.

Yue Xingwen concluded with a smile: "It is indeed a very wise decision to do experiments before formal construction."

Zhuo Feng nodded: "That's right. After the sandstorm passes, Man Luo will start to arrange the next stage of tasks!"

Their current project only prevents the quicksand from invading the farmland and ensures that the cultivated land of the residents will not be affected, but does not fundamentally solve the problem.The requirements of the exam are to control the environment and improve the ecology. Therefore, they must not only prevent, but also control.

Lin Manluo opened the project plan and said quickly: "The last stage is to level the sand dunes and create land." She pointed to the distance and said: "The large sand dunes in front are the key reason for sandstorms when the wind blows. We The team has Xiaonian from the Department of Architecture, and the work of leveling the sand is very easy, just go directly to the bulldozer and flatten the sand dunes."

Zhang Xiaonian took out the surveying paper, glanced at the data, and said, "Such a large area of ​​sand dunes will take... half a day to complete, is that okay?"

Lin Manluo smiled and said, "Half a day is already fast, your ability is much more efficient than normal construction teams."

Yue Xingwen asked: "The seabuckthorn that my sister chose before can grow in the sand, but if the sand is not firm enough, the plants cannot take root firmly, and if the wind blows, will the trees we planted be blown down?"

Lin Manluo nodded: "Yes, although plants such as seabuckthorn and salix can survive in the harsh sandy land, they can't survive directly planted in the sand. This land needs to be remodeled, the best way It is to divert water to build land.”

Ke Shaobin was stunned: "Drain water?"

Lin Manluo said: "Since there are towns and cultivated land nearby, there must be water sources. We need to build some aqueducts to divert water sources for irrigation, creating a sandy land suitable for planting plants, and then planting saplings."

Jiang Pingce reminded: "There are still 9 days until the end of the exam. Is it too late?"

Lin Manluo thought for a while, and said, "It should be in time, we have juniors from the School of Architecture, and we can dig ditches very quickly."

Yue Xingwen immediately made a decision: "Okay, Ping Ce, Ke Shao and I will find the water source, and the others will help Xiaonian level the sand dunes. Sister Lin, you should come up with a plan for planting trees as soon as possible, and look at the canals and plants. How to distribute it."

Everyone began to divide the work.

With Jiang Pingce's parabolic movement in the coordinate system and Xiaotu's radar detection, the three of them quickly found a water source nearby, and diverted water from here. It would take half a month for an ordinary engineering team to construct. Nian used an excavator to dig a hole all the way very quickly, and then used cement to paste a layer of the dug hole, which was a simple canal.

At the same time, Lin Manluo also discussed with his teammates to draw an area for afforestation, and designed the distribution of water canals. The water canals are arranged vertically and horizontally to form a "field" shape, which can water the land in all directions, and plants are planted in the middle square. , the final remodeled afforestation project will be more aesthetically pleasing.

After making all the preparations, Zhang Xiaonian started construction.

His excavator skills have now been upgraded to level 4, and his speed is several times faster than at the beginning. In just one afternoon, Zhang Xiaonian completed the projects of leveling sand dunes and digging ditches.

Everyone rested overnight at the base, and got up early the next morning to work again.

Lin Manluo said to Yue Xingwen, "Xingwen, how much money is left?"

Yue Xingwen said: "If you buy seabuckthorn seedlings, you can buy thousands of them."

Lin Manluo opened the shopping mall and looked at it, and said, "Buy some more grass seeds. I saw that grass seeds are very cheap. Buying a few catties is enough to plant a large patch. If the seeds are sprinkled, even if they can only survive half of the life, the whole patch will not survive." Environmental improvements in the area are also helpful.”

Yue Xingwen nodded. According to the sister's wishes, the remaining funds bought about 1000 seabuckthorn saplings, a few catties of grass seeds, and tools such as shovels. The 12 people started to plant trees separately.

Every year on Arbor Day, schools often organize students to plant trees.Yue Xingwen still remembers that when he was a freshman in high school, he planted a willow tree in the open space behind the school. Later, he and Jiang Pingce went back to his alma mater, and the sapling he planted has grown up and is full of green trees. , It can be used for the younger brothers and younger sisters to enjoy the cool.

I don't know how long it takes for the trees planted in the sand to grow up?

In order to prevent the students from planting the trees crookedly, Jiang Pingce deliberately calculated the distance, and used a triangular ruler to draw the entire matt-shaped transformation area into a coordinate system like a chessboard, and told everyone: "Plant trees at the junction of the chessboard. The distance between the two trees will be the same."

Yue Xingwen suppressed a smile and said, "Is this the obsessive-compulsive disorder in the mathematics department?"

Jiang Pingce said: "It would be ugly if the trees are arranged in a mess, so let's tidy them up." He paused, and then said, "Besides, isn't seabuckthorn able to bear fruit? After a few years, these trees will grow and mature, and they can be harvested." When the fruit is finished, it is neatly arranged and it is convenient for local residents to pick it.”

Yue Xingwen nodded in agreement: "Yeah, it's Ping Ce's thoughtful thinking. Let's plant trees at the intersections according to the coordinate system!"

Lin Manluo reminded: "Everyone, don't dig too deep, submerge the roots of the saplings, and then go up about 15 centimeters to fix the saplings. It's almost done! Remember to water some water after planting."

Yue Xingwen said: "No need to water, I'll just let it rain when the time comes."

People stand in 12 rows, one for each person.

Since Jiang Pingce drew a line on the ground and stipulated the coordinates of each tree, everyone planted saplings one by one according to the coordinates. Even if 12 people planted trees at the same time, there would be no chaos.

The more trees are planted, the more everyone finds...the neat ones really look good!

Thousands of saplings are divided by 12 people, and each person needs to plant about 90 saplings. In order to catch up with the work, everyone simply stayed up all night, and it took a day and a night to plant all the saplings. Drain the water.

Standing in the distance, everyone was a little worried—the forest they planted with their own hands, what is the survival rate?They are a group of laymen who have done their best to achieve this, and then they can only resign themselves to fate.

Looking at this magnificent project, Yue Xingwen said with emotion: "It's hard to believe, it was built by 12 of us."

Jiang Pingce said: "With the help of supernatural powers, we can complete it in such a short period of time. There are still 6 days before the end of the exam. Next, everyone should not be careless and consolidate the results."

Everyone nodded.

In the following time, everyone went to inspect the woods every day, and watered areas in time when they saw water shortages.When the wind is strong, in order to prevent the saplings from being blown down by the wind, they still use triangular wooden stakes to reinforce them.

Time flies, their 1 day is equivalent to 24 days in this world.

Those saplings actually sprouted green shoots at a speed visible to the naked eye!

Seeing the saplings survive one after another, everyone was very excited.

On the last day of the exam, the screen in front of you suddenly changed, and a line of words appeared in everyone's floating frame: "Congratulations to the 183 research group for passing the exam. What you see is the scene of the sandy land ten years later."

In the distance, the seabuckthorn they planted grows rapidly as if enchanted. Between the tender green leaves, there are large orange fruits, which are densely packed with orange fruits the size of small beans, stretching for thousands of meters. Extremely spectacular!

Ke Shaobin looked at those fruits, almost drooling: "Is it just for viewing, not for eating?"

Lin Manluo was so excited that tears filled her eyes: "This is the scene ten years from now, everyone has worked hard!"

Every tree was planted by them. At that moment, the sense of accomplishment that filled everyone's hearts was beyond words.

It is precisely because of their efforts that ten years later, this barren, desolate land plagued by quicksand, a large area of ​​green plants full of vitality appeared, and the sweetest fruits were born.