and also : https://news.cgtn.com/news/2021-02-05/Chinese-researchers-develop-new-machine-for-desert-control-XDCwiZrLva/index.html
Chinese researchers have developed a walk-behind paving machine that can more efficiently “plant” straw nets in desert areas to combat desertification.
The machine has proved capable of reducing the high labor costs involved in the deployment of checkerboard barriers, which are large straw nets placed on the surface of deserts to reduce the wind speed and fix moving sand dunes, according to the Desert Control Research Institute of Gansu Province, which developed the machine.
This checkerboard barrier technique is widely used in China’s arid inland areas, especially to protect traffic arteries from the incursion of deserts.
The institute said the machine makes the hand-planting process mechanized, by digging trenches and paving straw through its drive system, and can be used in varied terrain. The efficiency of the…
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