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In China’s Gobi Desert, locals fight desertification with simple methods! They lay 3x3 straw checkerboards to cut wind by half and trap most of the sand. With drought-resistant plants and special mesh nets that pull water from the air, over three generations they turned more than 6,000 square meters...

81,185 просмотров • 1 год назад •via X (Twitter)

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This anti-desertification technology, known as the "straw checkerboard sand barrier," originated in China and has since spread throughout the world. In 2023, I met Tang Xining, a 57-year-old scientist who has been fighting desertification in Ningxia for more than 30 years. He is the third-generation Chinese scientist to employ the "straw checkerboard sand barrier". More than 487 square kilometers of land have been spared from desertification because to his efforts. He has modernized the method using machines and other cutting-edge technology, earning five patents. The original "straw checkerboard sand barrier" only kept 25% of the desert's grass alive, whereas the new technique keeps almost 75% of the plants thriving. He showed me how to make a "straw checkerboard sand barrier" the old-fashioned way. The straw checkerboard sand barriers were originally created for building the desert section of the Baotou-Lanzhou Railway. Researchers discovered that straws arranged in a checkerboard pattern on the desert floor can effectively control the movement of sand dunes. In 1955, the Chinese Academy of Sciences established China’s first comprehensive observation station in Shapotou; and then the following year, the country’s first specialized sand-break forest was launched. After numerous failures and explorations, straw checkerboard sand barriers were adopted as the main method to deal with moving sand when the railway opened. The method was applauded by experts from both home and abroad at the United Nations Conference on Desertification (UNCOD) in Nairobi in 1977. Since then, foreign experts and personnel came one after another to Shapotou to learn the unique method. In China, the fight against desertification and for environmental conservation began with the deployment of straw checkerboard sand barriers.

Eivor

459,375 просмотров • 10 месяцев назад

This is again a project of an unfathomable scale that's just been completed in China and barely anyone has heard of it in the rest of the world China has just finished constructing a continuous 3,046-kilometer (1,892-mile) green barrier - made of plants and trees - completely encircling the Taklamakan Desert, the world's second-largest shifting sand desert which is about the size of Germany (!). To put this in perspective, this is like building a living wall from Paris to Istanbul, or from Los Angeles to Chicago – except they built it in one of the world's most inhospitable environments. They spent about 40 years building this "green wall". The final 285 kilometers was completed in 2024 on November 28. They built the "wall" with desert-hardy plants like Populus euphratica (desert poplar), Haloxylon (saxaul), and Tamarix (salt cedar), along with innovative sand-control engineering and solar panel installations. The objective of the project is to contain the desert's expansion and to protect surrounding agricultural areas and cities from sandstorms. Before this project, many towns in the region had to be relocated multiple times due to encroaching sand. For instance, the town of Qira in Xinjiang had to move three times in its history, with sand dunes once approaching as close as 1.5 kilometers from the town center. This is easily one of human history's most ambitious and grandest ecological engineering projects. It's insane when you think about it: completely containing a desert the size of Germany! And it's also insane how little attention this has received globally: sadly we've apparently lost the capacity to be impressed by such a project, let alone have the boldness of vision to conceive of one ourselves. All resulting in the fact that whilst China is out there completing 40-year missions to tame entire deserts, we can barely fix potholes in our roads.

Arnaud Bertrand

610,516 просмотров • 1 год назад

Camel, the amazing desert superanimal Camels don't just have adaptations that help them survive heat, they have adaptations that help them thrive and rule the deserts. ✓ You're more likely to encounter a venomous snake than a non-venomous one in many desert environments. Camels have some degree of resistance to snake venom. Coincidence? ✓ Camels have long eyelashes and bushy eyebrows which protect their eyes from blowing sand and sun glare ✓ They have third transparent eyelid which acts like a windshield wiper; camel can still see while keeping sand out ✓ They have narrow slit-like nostrils that can close completely to keep sand out during storms. ✓ They have humps which can store fat for future use. 1kg of fat stores in the hump can provide about 1kg of water and energy when metabolised. So, they can stay for long without water. ✓ Their urine is concentrated and syrupy. This minimizes water loss. ✓ They can drink up to 100L to 200L in just 3 minutes. This means they can rapidly rehydrate when they come upon water. ✓ While humans can die at 12-15% body-weight water loss, camels can tolerate 20-30%. ✓ They have thick, leathery knee pads which makes it easy for them to kneel on the hot desert sand. They can kneel on a sand that's up to 70°C hot without getting burned. ✓ They have wide, cushioned feet, which makes it easy for them to spread their weight and walk on sand without sinking. ✓ They have thick and tough lips that makes it easy for them to eat thorny desert plants. These and many more makes them the rulers of desert. Camels are amazing creatures.

Arojinle

68,168 просмотров • 10 месяцев назад