Which provinces are affected by the dusty weather in the north?

Sandstorm weather is a disastrous weather phenomenon with strong destructive power in arid and semi-arid areas, including floating dust, sand blowing, sandstorm, strong sandstorm and super sandstorm. It may seriously damage the white environment and social economy in a short time. The high incidence areas of sandstorms in the world are Central Asia, Central Africa, North America and Australia. Most provinces in China are affected by the dusty weather in the north. Central Xinjiang, Northeast China, North China, Huanghuai, Jianghuai and northern Jiangnan have all been affected.

Sandstorm is a serious natural disaster. In recent decades, the frequency and frequency of sandstorms in China are also rising. The occurrence of sandstorm not only threatens people's lives and property safety, but also causes serious environmental pollution. At the same time, it also has a very important impact on the global ecological environment balance and climate change. Under the condition of good vegetation coverage and heavy rainfall, no matter how big the wind and other dynamic factors are, sandstorms will not occur. On the contrary, wind and other dynamic factors are the external causes of sandstorms. When the vegetation coverage is poor and the precipitation is low, that is, when the sandstorm is in a critical state, the dynamic factor may become the dominant factor in the generation and transportation of sandstorms, thus affecting the generation and development of sandstorms. Therefore, improving vegetation in arid and semi-arid areas in the north is fundamental to control sandstorms.

It is necessary to carry out ecological protection in areas with serious natural disasters such as sandstorms. Due to the limited governance capacity in China and the lack of governance conditions for large areas of desertification land, specific land can be closed and protected. Through this policy, the disturbance behavior can be greatly reduced, the vegetation structure on the surface of desertification land can not be destroyed, the ecosystem can be developed in a balanced way, and the dust can be prevented. Strengthen sandstorm monitoring technology. Sandstorm monitoring is one of the important means to predict and reduce the occurrence of sandstorms. Using remote sensing technology to process information, because there are many dynamic changes in the types of sandstorms, it is necessary to evaluate and predict them regularly, and strengthen the research and formulation of control plans. In practice, to prevent sandstorms? 3S? High-tech technology is of great significance to our country. China has also provided great help in establishing resources, environment and efficient agricultural information system.