Why doesn t the state clean up the desert and plant vegetation?

Since the founding of the People's Republic of China, China has been working hard to control the desert.

The northwest region of China is deep inland, the ocean water vapor is difficult to reach, the precipitation is low, the climate is arid, and there are large areas of desert on the surface of the earth. With the growth of the population, in order to improve food production and livestock production, the irrational use of land and water resources has led to the expansion of deserts, and many desertified lands have emerged.

Desert control is a huge and comprehensive project, which requires a combination of biological and engineering measures. China has created the "Three Norths" shelterbelt and the national desertification prevention and control project, and Ningxia's grass grid sand barrier has also achieved remarkable results. At present, the expansion of deserts in China has been significantly curbed, and the management of native deserts is still very difficult, and the climate is arid, and it is difficult to plant vegetation to survive.

It is not that the country has not managed the desert and planted vegetation, but it has to be gradual, and some deserts are formed by a fixed climate, and the climate cannot be changed.

6. Plant plants suitable for growth in desert arid areas, such as sea buckthorn, in desert areas to form a ground cover plant layer, so as to improve the ground cover environment, fix the soil, reduce wind speed, increase air humidity, and improve the microclimate environment. 7. Plant native varieties of low shrubs and small trees at the edge of the desert to improve the distribution of vegetation.

The state has been managing deserts and planting vegetation, but not all places can be done in one go, and not all places can be effectively managed.

Desert management refers to improving the desert environment through human intervention to slow down or stop the process of desertification. In the past few decades, desert management has received extensive attention and practice in some countries and regions, including China. However, in recent years, desert governance has been questioned and reflected on for several reasons:

1.Poor desert management: Some desert management projects are not working well and may even have some negative impacts.

For example, planting trees can lead to overuse of water resources, leading to land degradation and ecological degradation. 2.Desert remediation costs are high:

Desert management requires a lot of human, material and financial resources, and the cost is high. In areas with relatively weak economic conditions, desert management is difficult. 3.

Ecosystem complexity: The complexity of desert ecosystems makes governance difficult. Once there is a deviation in governance, it may bring more serious consequences, such as destroying the ecological balance and affecting the stability of the ecosystem.

In summary, desert governance is no longer the main way to solve the problem of desertification. Now it is more advisable to adopt sustainable development methods such as ecological protection and rational use of land to slow down the process of desertification.

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Planting trees in deserts will absorb a lot of water, which will affect the survival of other plants, and it is said that some desert areas are not rich in groundwater resources and have little annual rainfall, so they are not suitable for planting trees.

Therefore, in arid and semi-arid areas, priority should be given to drought-tolerant and barren-tolerant native tree species and grass species that are suitable for local climatic conditions.

Speed difference guessing is only the biological characteristics of the tree species, and whether it can prevent wind and fix sand is not directly related to whether it is a fast-growing tree species. As a way of biological sand fixation, some drought-tolerant poplars can also play a good role in windbreak and sand fixation.

He also said that not all areas are suitable for planting trees to manage desertified land.

The treatment of desertified land also includes engineering sand fixation, conservation tillage and other methods, artificial afforestation is a method of biological sand fixation, and it is also necessary to combine the actual local conditions to scientifically select sand fixation methods. ”

Desert governance is aimed at the ecological restoration and maintenance of arid and semi-arid areas, and there have been actions to advocate and implement desert governance in the past, such as desertification control in the "Three Norths" region of China, which have made important contributions to alleviating environmental degradation and maintaining the ecological environment. However, as people's understanding of the natural environment and ecological problems gradually deepens, they also become more and more aware that natural ecology is generally interdependent and balanced, and human intervention in it sometimes has some unexpected effects and consequences. Therefore, the current ideas and methods of desert management are gradually changing and adjusting, becoming more advocating ecological restoration and conservation, focusing on preventing environmental degradation from the source, and advocating natural restoration and nature protection.

In conclusion, desert governance is still an important area, but governance methods and concepts are constantly evolving and developing to better protect the natural environment and ecological balance.

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Desert management is a means of ecological restoration and environmental protection, aiming to improve the productivity and quality of the ecological environment in desert areas, so that deserts can be turned into fertile land. However, in recent years, some experts and environmentalists have begun to rethink desert management, believing that it is not the best way to solve the problem of desertification. First, desert management requires a lot of investment and time, and it can take decades or centuries to see results.

And in the process, the money and resources invested may far outweigh the benefits of governance. Secondly, desert management may adversely affect the local ecological environment and ecological balance. Some desert plants and animals are special species adapted to the desert environment, and their survival and reproduction need to adapt to the conditions and laws of the desert environment.

Desert management may disrupt this ecological balance, leading to the extinction of some species and the destruction of ecological environments. As a result, some experts and environmentalists are now advocating a more integrated and sustainable approach to tackling desertification. For example, the development of water-saving agriculture, the promotion of desert tourism, and the protection of the desert ecological environment can all meet the local economic and social needs while protecting the ecological environment.

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1. Resist the wind and sand and prevent the expansion of the desert.

By planting trees in the desert, these planted trees are able to hold loose grains of sand, weaken the wind in the desert area, and stop the desert from expanding. Since the wind can be reduced to 20 to 30 percent of its original speed after passing through these windbreaks, planting trees in the desert can effectively protect against wind and sand.

2. Maintain soil and water.

Arid and semi-arid areas are inherently characterized by water scarcity, windy winds, and the destruction of the land, which has slowly turned arable land into desertified land. Since one acre of land with forests can store about 20 tons more water than areas without trees, if you plant trees in the desert and close the cherry blossoms, then you can improve the soil and water and improve the ecological environment.

3. The car cluster produces economic benefits.

Trees can be planted on the land of the desert to bring economic benefits. On the one hand, the cultivation of economic trees in the desert can create a lot of labor and employment opportunities for the local area. On the other hand, through the planting of trees, roads in the desert can be protected.

For example, China has planted trees to protect the Tarim Highway, which facilitates the extraction and transportation of oil.

Deserts are difficult places for plants to survive. If it wants to survive, it must at least withstand two severe tests: First, a prolonged drought.

Take Taklamakan as an example, its annual precipitation is only 10-50 mm, less than 1-3 in China's coastal areas, which is a fatal killer for plants that "drink" a considerable amount of water, and many plants dare not patronize it.

Because deserts are particularly arid and hot, it is difficult for plants to survive in high temperatures and lack of water.

Because the desert air is dry and there is a lack of groundwater, plants do not get enough water. And there is a large temperature difference between day and night.

As we all know, the desert is very arid, and the main reason why it is difficult for plants to survive in the desert is that it is too dry. At the same time, the desert is because there is too much sand. Plants also struggle to absorb nutrients.

Because the desert is full of sand, it lacks the soil necessary for plants to grow, and it is difficult to grow because of the lack of nutrients.

Plants have difficulty surviving in the desert because most plants need water, and there is very little water in the desert, so it is difficult for them to survive.

This question corresponds:

Lack of necessary hydration.

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