Gobi is a desert terrain covered with coarse sand and gravel on hard soil. According to the genesis, the gravel Gobi can be divided into three types: weathered, hydrous and aeolian. Desert refers to sandy desert, the whole ground is covered with large areas of quicksand, and various sand dunes are widely distributed. Under the action of wind, sand dunes move, causing serious harm to human beings. The surface of the desert is covered with a thick layer of fine sand (have you ever been to the seaside? It's the same as the beach. It's just formed for different reasons, one is the long-term effect of water, and the other is the long-term effect of wind.) The surface of the desert will change and move by itself, of course, under the action of wind:) Because the sand will run with the wind, the sand dunes will move forward layer by layer. Change into different forms. Gobi will not be like that. Because the surface of Gobi is composed of loess and slightly larger sand and gravel, the ratio is about 1:1. There are more or less vegetation on the Gobi Desert. When the wind blows, most of it is dust, and when the wind is strong, there will be a landscape of sand and stones, but the landform of Gobi will not change. Gobi is the predecessor of desert, and Gobi will evolve into a desert under the further erosion of wind erosion. That is, the desert with gentle topography and large gravel on the ground. From Mongolian. Mongolian calls the gravelly desert Gobi. Because the fine sand has been blown away by the wind, the Gobi ground is covered with gravel, so there is a difference between gravel desert and stony desert. Mongolians call it desert area, which is full of sand and stones, and the ground is short of water and plants. The word Gobi comes from Mongolian language, which means "land difficult to grow vegetation". Gobi desert area has harsh climate, less rainfall, wide temperature difference between day and night, big sandstorm, fast wind speed and long duration! Desert (also called sand desert) refers to sandy desert, and one third of the earth's land is desert. Because there is little water, it is generally thought that the desert is desolate and lifeless, and it is called "barren sand". Compared with other areas, there is not much life in the desert, but if you look closely, you will find that there are many animals and plants hidden in the desert, especially those that come out at night. Desert is a region where it seldom rains. Desert is also called barren sand. There are animals and plants in the desert! Different from the desert, it is dominated by sand, with no gravel and a small amount of plants. Gobi, the surface layer is mainly gravel, no sand and soil can be seen, and basically no plants grow.
When there is a flood, especially in mountainous areas, due to the gradual weakening of the flood energy, the following landform features are formed in the flood-hit areas: large pieces of rocks are piled up at the nearest mountain pass, and the rocks gradually become smaller outside the mountain;
Then came rocks the size of fists and fingers. Due to years of sun, rain and wind erosion, the edges and corners are gradually rounded and become what we call stones (scientific name is gravel). In this way, the Gobi desert was formed.
The finer sand and mud are alluvial and float further, forming a big desert farther away.
The sandstorm in Beijing in spring came from the Gobi Desert and even affected Japan.