Data as of 2021 said that China's desert area is about 2.62 million square kilometers, accounting for 27% of the country's land area, and this data is still rising. China has been working tirelessly to prevent wind and sand control, and scientific researchers are also striving to

As of 2021, the data of desert area in China is about . , accounting for 127% of the national land area, and this data is still rising.

China has been working tirelessly to prevent wind and sand control, and scientific researchers are also striving to develop more and better sand control methods.

This is why "Sand-swallowing Behemoth" developed by Chinese scientific researchers can swallow nearly 140 acres of in one day, and it has now been put into use in Gansu.

Artificial wind prevention and sand fixation

Sand control is a game between humans and the harsh natural environment. In the northwest region of my country, such as Xinjiang, Gansu, Ningxia and other places, for many years, it has been fighting on the front line of wind prevention and sand control.

People use wheat grass , straw, reed and other plants as raw materials to make grass square sand barrier . It can form a wind barrier on the flowing sand dunes to weaken the erosion of wind, play a role in preventing wind sand and fixing sand, and conserving moisture.

Although this method is effective, people have also discovered its shortcomings in the practical process.

people who lay sand barriers will first draw the construction grid line on the sand dunes in advance, and then place the regular wheat straw and other materials on the construction grid line in horizontal or vertical direction.

Then manually use a shovel to press into the sand about 15 cm , and finally erect the wheat grass on the sand surface. The desert control personnel lay a desert of hundreds of square meters of every day. is already the limit .

So the production and laying of this artificial grass square sand barrier is not only the labor cost of , but the operation efficiency is very low. Moreover, as the problem of modern land desertification becomes increasingly serious, relying on manual and manual wind and sand control is really the tip of the iceberg and it is useless.

If this continues, it will only lead to people's continuous consumption of manpower and financial resources in desertification. However, the problem of land desertification in is difficult to effectively solve , and even the speed of desertification is even far beyond that of people for wind and sand control.

The birth of the sand-swallowing beast

Faced with this imminent situation, the Gansu Provincial Sand Control Equipment Research Institute, after several years of research and more than twenty experiments, finally developed a sand-swallowing beast - multi-function three-dimensional sand fixing cart .

multi-function three-dimensional sand fixing truck is to place the laid raw materials in its special forage box, and then transfer the raw materials in the forage box to appropriate positions through horizontal and vertical grass feeding methods. When

is working, the horizontal and vertical pressing knives in the sand fixing truck will start to operate, and the raw material will be automatically laid on the sand.

After researchers have continuously improved the technology, the multi-function three-dimensional sand fixing truck can lay about 8.5 acres of forage per hour. According to this efficiency, one machine can lay about 40 acres of grass square sand barriers per day.

After comparing the data, it was found that the efficiency of multi-function three-dimensional sand fixing truck is 50 to 80 times that of artificial sand control. Its high efficiency also solves the problem that land desertification speed is faster than sand control speed.

In addition to the speed problem, the quality of the grass square sand barrier made of multi-function three-dimensional sand fixing truck is also higher than that of artificial. The machine pressing knife in the sand fixing truck will insert raw materials into the sand floor with a depth of about 125 cm. The height of the laid grass square sand barrier is about 21 cm. Grass square sand barriers such as

can effectively increase the roughness of the desert surface of , and can also better weaken the wind force , achieving the effect of preventing fine sand from flowing, and intercepting rainwater .

is put into use in Gansu

At present, a multi-function three-dimensional sand fixing truck has been carried out in Wuwei area of ​​Gansu . During this period, it laid a total of ,000 acres of sand land, and initial results were achieved.

Because the grass lattice sand barriers are laid on the sand fixing truck, the effect of is very good, and the desert, which is originally deserted and yellow sand, gradually has the vitality of green leaves.

, director of the Gansu Construction Investment Group Sand Control Equipment Research Institute, Li Ning , said that the lifespan of grass square sand barrier is about 3 to 5 years , and it must be completely successfully sand control within the limited period of its life in order to achieve it once and for all.

For this reason, desert control personnel have also planted many plants suitable for desert areas in wastelands, such as poplar , flower stick , saxacum tree, etc., which not only solves the problem of life span of square grass grids, but also helps us achieve the goal of long-term sand fixation .

The successful development of the "Sand-swallowing Behemoth" is undoubtedly the dawn of hope for human sand control. Its emergence can bring revolutionary changes to China's wind prevention and sand control. Therefore, sand fixing trucks were widely praised as soon as they were launched and quickly spread to other desert areas in the northwest.

Not only that, China has also launched a joint sand control plan for joint sand control with Pakistan , Kazakhstan and other Central Asian regions, providing them with wind and sand control technologies and equipment.

Currently, China's domestic land desertification can be effectively controlled. We hope to take this opportunity to promote global desertification control actions.

Land desertification will bring fatal disasters to mankind. I hope this problem can be completely solved in the future and mankind can survive in a beautiful and comfortable home.