Analyze the relationship between vegetation and dust storm formation

1. Sandstorms are formed by the wind blowing up a large amount of sand and dust on the ground and rolling them into the air.

2. First, the sand and dust substances on the ground. It is the material basis for the formation of sandstorms.

3. The second is strong winds. This is the power basis for the formation of sandstorms, and it is also the power guarantee that sandstorms can be transported over long distances.

4. The third is the unstable air state. This is an important local thermal condition. Sandstorms tend to occur in the late afternoon and evening, which illustrates the importance of local thermal conditions.

5. Fourth, the arid climate and environment. Dust storms tend to occur in the spring in the north, and there is good evidence that they do not occur for some time after rainfall.

The gravel vegetation and crust-covered ground surface can effectively inhibit the release of sand and dust, mainly due to dust sensitivity

1. Gravel vegetation and crust-covered ground surfaces can reduce the effect of wind, thereby reducing the release rate of sand and dust.

2. The surface covered by gravel vegetation and crust can improve the viscosity of the soil, thereby reducing the release rate of sand and dust.

3. The surface covered by gravel vegetation and crust can reduce the flying of sand and dust, thereby reducing the release rate of sand and dust from the beams.

4. The surface covered by gravel vegetation and crust can inhibit the persistence of the soil, thereby reducing the release rate of sand and dust.

It can increase the surface roughness, absorb and decompose the surface wind momentum, and reduce the shear force on the erodable bed surface. In addition, it can also reduce the area of direct cavity and open interaction between wind and surface soil, or bend to form a protective effect on the surface.

Natural causes:1The north in this season, under the influence of the Siberian high pressure, is windy 2There is less precipitation in the north, the land is dry, and there is more dust, and the desertification in Inner Mongolia is serious3The vegetation covers a small area and lacks protection of the land.

Anthropogenic causes: The occurrence of sand and dust storms is not only a product of specific natural environmental conditions, but also has a corresponding relationship with human activities. Artificial overgrazing, indiscriminate felling of forest vegetation, industrial and mining transportation construction, especially man-made excessive reclamation, destroy ground vegetation, disturb the ground structure, form a large area of desertified land, and directly accelerate the formation and development of sandstorms.

The main reasons are the desertification of the land, the reduction of soil moisture content, the destruction of a large number of vegetation, the desertification of the soil caused by acid rain caused by air pollution, and the formation of sandstorms with the help of wind energy.

Only by caring for the environment, planting grasses to conserve water, and preventing soil desertification, can the occurrence of sandstorms be stopped.

Soil wind erosion is the primary link in the occurrence and development of sandstorms. Wind is the most direct driving force of soil, and soil moisture content is also an important cause of soil wind erosion.

Plant measures can prevent sandstorms. Plants can disperse a certain amount of wind momentum on the ground, reducing the transfer between air currents and sand and dust; Stop the movement of soil and dust.

Of course, everyone doesn't care about the environment Multi-value tree (I may have written it wrong, hehe).

Or take care of the environment.