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
On the 10-kilometer-wide border between China and Mongolia, the grass still retains its previous height, but it is an uninhabited area.
 This shows that the grassland degradation and desertification caused by climate drought will inevitably cause a natural disaster such as sandstorms