What is the role of the desert What is the importance of the desert

The surface of the desert is covered with a thick layer of fine sandy sand (have you ever been to the beach?). It's the same with the beach. It's just that the reasons for the formation are different, one is the long-term action of water, and the other is the long-term action of wind.

The surface of the desert changes and moves on its own, of course, under the action of the wind. Because the sand will run with the wind. The sand dunes will move forward and change into different shapes.

The temperature difference in the desert area is large, the average annual temperature difference can reach 30-50, the daily temperature difference is greater, the ground temperature can reach more than 60 at noon in summer, if you bury an egg in the beach, it will be cooked soon. The temperature dropped below 10 again at night. Due to the large temperature difference between day and night, which is conducive to the storage of sugar by plants, the melons and fruits in the desert oasis are particularly sweet.

The desert area has strong winds and sands. The maximum wind force can reach 10-12 magnitude. The strong wind blows up a large amount of floating sand, forming a ferocious wind and sand flow, which constantly erodes the ground and causes drastic changes in the landform.

Pedestrians are wary that some deserts are not naturally formed, but are man-made. For example, in the United States from 1908 to 1938, due to the deforestation of more than 900 million acres, large areas of grassland were destroyed, and as a result, large areas of green space were turned into deserts. The Soviet Union's 1954-1963 reclamation campaign severely damaged the steppes of Central Asia, bringing desert disasters instead of arable land.

The Sahara Desert has caused great harm to mankind, engulfing farmland, villages, railways, roads and other transportation facilities. According to historical records, the ancient city of Loulan on the Silk Road in China was swallowed by the desert. At present, mankind is doing everything possible to prevent and control desertification, such as planting trees, planting grass and fixing sand, and setting up sand barriers, all of which have achieved very good results.

The cause of climate regulation is also related to the three-circle circulation. Without deserts, the ecology may be out of balance.

First of all. The ecological balance will be damaged to a certain extent, such as drought-tolerant plants such as cacti will not be able to survive. Again, yes. Of course, people in the future will not see the desert.

High-altitude sandstorms formed by deserts are important nutrients for nourishing marine microorganisms, which are the basis for the survival of marine animals and plants, which are not only important resources for human survival, but also an indispensable part of the earth's ecosystem.

It is also of great importance, it can protect the surface well, can form a lot of minerals, can have a lot of customer resources, and can provide people with a lot of convenience.

Some deserts absorb carbon dioxide from the air and play a role in protecting atmospheric gases.

Bacteria in the desert can absorb carbon dioxide from the air and play a key role in the earth's ecological environment.

Desert ecosystems are the most drought-tolerant on the planet, with super-xerophytic communities of small trees, shrubs and semi-shrubs predominantly and their surroundings. Deserts are stony, gravelly, and sandy. It is customary to call the stony and gravel desert the Gobi and the sandy desert desert desert.

The functions of desert ecosystems mainly include water and water conservation, soil and water conservation, water and air purification, nutrient element cycling, material production, pollutant degradation, organic matter, precipitation interception, water conservation, soil C accumulation, farmland ecosystem services, tourism services, unit area and regional ecosystem service value.

The role of deserts plays a role in the global water cycle.

Deserts also play an important role in maintaining the diversity of life on the earth, and many desert areas are areas where oil and other mineral resources are distributed.

Desert refers to: 1. The ground is completely covered with sand, and the plants are relatively scarce, even the rain is relatively scarce, and the air is a relatively dry and barren area.

2. Most of the desert areas are sandy beaches or sand dunes, but rocks under the sand often appear. There are sometimes valuable mineral deposits in desert areas, and many oil reserves have been found in desert areas in modern times.

3. The desert is rarely inhabited, so it is relatively easy to develop resources.

Difference Between Desert and Desert:

1. Different concepts: Desert usually refers to areas with dry climate, poor vegetation and desolate environment caused by scarce precipitation or high evaporation. Desert refers to the area covered by large sand dunes on the surface of the desert area, which is one of the many types of desert and the most distributed desert type.

2. The environment is different: the ground temperature of the desert varies greatly, the physical weathering is strong, the wind is active, the surface water is extremely poor, and most places have saline-alkali soil. The most important feature of the desert is not only the desolate environment, but also the sand dunes that are everywhere on the surface.

3. Different compositions: Desert is a large landform combination in arid areas, including rock desert, gravel desert, desert and mud desert. The latter are dry lakes or fissures and are generally smaller in scale.

1. The sand in the desert is an important building material**, and it plays a pivotal role in modern civilization.

2. The sand contains silicon, which is purified and cut into small pieces and engraved with circuits, which is the basis of the computer chip used by the landlord.

3. Deserts are part of the ecology and provide a place for many creatures to live.