Sand storm

In recent days, we've been surrounded by dust.

Sandstorm is the full name of sand and dust storms is a sign of desertification. Refers to the strong winds from the ground to roll up a large number of dust, so that the level of visibility is less than 1 km, with a sudden and short duration of the characteristics of the small probability of a large disaster weather. The wind swept the sandstorm refers to the formation of a large number of sand blown into the surface layer of sediment laden storm; storm is the large number of dust and other fine particles formed by the altitude of the storm involved.

Sandstorms are caused by many factors. Among them, strong wind, strong thermal instability and sand sources are the three important conditions for the formation of dust storms.

Under the influence of strong winds and strong winds, the quicksand of the soil surface is blown up to form dust. The occurrence of dust storm is not only a product of a specific natural environment, but also a corresponding relationship with human activities. By overgrazing, deforestation, vegetation, mining, transportation construction especially human excessive reclamation destruction of ground vegetation, disturbance of the ground structure, the formation of the desertification land area, directly accelerated the formation and development of sand dust storm.

The sandstorm weather is severe weather occurred in Northwest Chinese and northern area of North China, which caused by the collapse of housing, traffic is blocked or power supply interruption, fire, human casualties, environmental pollution, destruction of crops, to the development of national economy and people's life and property security caused serious loss and great.

Although the sandstorm is very harmful, it is an indispensable part of the ecosystem. We can strengthen the protection of the environment, the protection of the environment to the height of the legal system. The implementation of the law to protect, restore vegetation, prevent land desertification further expanded, as far as possible to reduce dust sources. According to different regions according to local conditions to develop disaster prevention and disaster relief plan, actively promote the various disaster reduction technologies, and the onstruction of a number of demonstration projects, and gradually extended to the point, to further improve the regional comprehensive defense system. Suitable for plant growth in arid areas of desert farming in the desert area, such as sea buckthorn, formed by plants, so as to improve the environment to be fixed, soil, reduce wind speed, increase air humidity, improve the microclimate environment. Low shrubs and trees are planted on the edge of the desert

We should pay attention to our protection when we go out. Remember to take care of the environment is everyone's responsibility.