In April of this year, our country suffered the most powerful sandstorm disaster in recent years, with a loss of 6 5 billion U S  dollars  The occurrence of sandstorm generally requires three conditions which are abundant sand and dust sources, strong winds and unstable atmospheric structure, namely, on sandy ground and bare ground without vegetation, the air is easily heated to blow up the dust
Take the method of a large-scale recuperation to alleviate the pressure of human production on the ecological environment.
 This shows that the grassland degradation and desertification caused by climate drought will inevitably cause a natural disaster such as sandstorms