How to reduce land desertification, land desertification prevention and control measures

Have fewer children and more trees. Hahaha, don't joke with Lanzhou. control of land desertification; Reasonable reclamation, moderate grazing, in desertification areas are mainly nomadic areas, not suitable for farming, and a large amount of grazing to exceed the carrying capacity of the grassland; Clarify the remediation objectives, that is, implement national environmental and resource laws and regulations, and establish a prevention and control system that prevents desertification and promotes economic development; According to the different natural conditions and the nature of the Teli effect, measures are taken according to local conditions; Establish and improve the rectification implementation system, and coordinate the work of various departments; Establish an early warning system to prevent the occurrence and development of desertification; Establish a three-north shelterbelt and plant drought-tolerant and psammophytes.

I think that's all I remember when I was in school, and my grades weren't good.

Land DesertificationDeserts are a product of an arid climate, and there were deserts on Earth long before the advent of humans. But there is no insurmountable line between a desolate desert and a fertile steppe. With water, lush plants can grow on the desert and become an oasis full of life; Without water and plants, green spaces can quickly degenerate into gravel.

In order to get more food, people will open up wasteland for farming and overgraze regardless of climate and land conditions; In order to solve the fuel problem, regardless of the consequences, trees and grass are cut and cut indiscriminately. The arid and semi-arid regions, which were already dry and windy, are now ravaged and the vegetation destroyed, with less precipitation and stronger winds, strong winds eroding the topsoil, increasing the amount of sand and slowly developing sand dunes. This turns arable land into desertified land that is not suitable for grazing and farming.

Protect the environment and prohibit indiscriminate logging.

The measures to prevent and control land desertification mainly include: 1. Rational allocation and utilization of water resources to develop water-saving agriculture. 2. Adjust the land use structure, rationally graze and actively build a forest network to protect the field. 3. Expand the vegetation coverage, set up sand barriers and build a protective system for sand fixation.

First of all, there is a clear remediation goal. That is, to implement national environmental and resource laws and regulations, and establish a prevention and control system that not only prevents desertification, but also promotes sustainable economic development. Seek the coordination of ecological, economic and social benefits.

Secondly, measures should be taken according to local conditions according to the nature of different natural conditions and various external forces. The main cause of desertification is the destruction of the natural environment by human beings. The prevention and control of land desertification is mainly carried out from the aspects of human activities including the use of water resources, the relationship between agriculture, animal husbandry, fishery, etc., and the capacity of the population per unit of land.

1. The main prevention and control measures in semi-arid areas are:

We should readjust the structure of land use that is not conducive to the virtuous cycle of the ecological environment, and rationally arrange the proportion of agriculture, forestry, and animal husbandry.

Desertified abandoned farmland and degraded grassland are enclosed and vegetation restored.

Zonal rotation or rotation is adopted to limit the number of animals carried.

The sand fixation method is mainly based on plant sand fixation, supplemented by engineering measures.

2. The main prevention and control measures in arid areas are:

Inland river basins should be used as ecological units for comprehensive planning, and the proportion of water use in the upstream, middle and lower reaches should be reasonably allocated.

With the oasis as the center, a shelterbelt combining the sand sealing and grass breeding belt on the periphery of the oasis, the sand control forest belt combining trees and shrubs at the edge of the oasis, the narrow forest belt inside the oasis, and the small grid of field protection forest network were established.

For the mobile sand dunes at the edge of the oasis, a protection system combining sand barriers on the surface of the dunes and planting sand-fixing plants in the barriers was adopted.

On the basis of preventing and controlling sand damage, measures to improve the soil should be taken.

Land desertification is when land loses its productivity and ecosystem functions and becomes an arid, barren desert or desert。In order to prevent and control desertification of land, the following measures can be taken:

Vegetation restoration: By planting vegetation such as grass and trees, soil structure and water sources are restored, and ecosystem functions are improved to prevent the further expansion of desertification.

Wind and sand fixation: Adopt methods such as planting shelterbelts, vegetation belts and building stone walls to fix the land and reduce the erosion of wind and sand.

Optimize farming practices: improve soil quality and increase land productivity by using tillage rotation, soil and water conservation, organic fertilizers, etc.

Water resources management: Through the management and utilization of water resources, prevent the overuse and waste of water resources, avoid land salinization, and ensure the sustainable use of water resources.

Policy support: Strengthen the formulation and implementation of policies and regulations, improve public awareness and participation in environmental protection, encourage the application of science and technology, and promote land desertification control.

Adjust the structure of agriculture, forestry and animal husbandry, reduce overgrazing and reclamation, and restore natural ecosystems.

Develop desert economic industries, such as photovoltaic power generation, tourism, etc., to improve the income and environmental awareness of residents in desert areas.

Preventing and controlling land desertification requires the comprehensive application of multiple measures, and the joint participation and efforts of enterprises, enterprises and the public to achieve the goal of sustainable land use and ecological protection.

Land desertification refers to the destruction of the original fragile ecological balance in arid and semi-arid areas due to unreasonable human development and business activities, resulting in the degradation process of sandy desert environment similar to sandy desert environment with wind-blown sand activities as the main feature in the original non-desert areas. Desertification and the resulting environmental degradation and economic poverty have been listed by the international community as one of the major problems that threaten the survival of mankind. China is one of the countries with a serious problem of desertification.

There is a historical process in the formation of the problem of desertification. To study and solve today's desertification problem and take the road of sustainable development, it is necessary to study and solve the historical process of desertification and the root causes of its formation.

One. Historical desertification processes in our country include desertification in arid areas and desertification in semi-arid areas.

The first is desertification in arid areas. The arid deserts are found in the northwest, and most of them were formed in geological time. However, in some oasis areas on the edge of the desert, due to historical man-made indiscriminate reclamation, indiscriminate grazing, indiscriminate woodlogging, and irrational use of water resources.

The hazards of land desertification include: the reduction of land resources used by the Croissant Duanhong, the threat to traffic safety, the intensification of natural disasters, and the serious decline of land productivity.

Due to the overexploitation of the natural environment, the land in many places has been desertified, so land desertification is a problem that all mankind cannot ignore, so what is the harm of land desertification? Let's find out.

01 Reduction of available land resources.

Desertification means land degradation, and the continuous decline in the productive capacity of desertified land will lead to a reduction in land for agricultural and animal husbandry production, and farmers and herders will be forced to "ecological migration". At the same time, desertification will also affect the land for residential production by severe sandstorms and resource shortages, resulting in the reduction or even disappearance of land population.

02 Threaten traffic safety.

Shifting sand dunes can bury roads and railways; Sandstorms can reduce atmospheric visibility and force airports and highways to shut down.

03 Natural disasters intensify.

The most obvious aspect of desertification is the intensification of natural disasters. Sandstorms, sandstorms, and smog are natural disasters that ruthlessly disrupt the order of our production and life, and even endanger people's health.

04 Land productivity is in serious decline.

Soil wind erosion is not only a major component of desertification, but also a primary link. Wind erosion causes the loss of organic matter and fine-grained matter in the soil, resulting in soil coarsening and reduced fertility.

05 While shaping the beauty of the wind-blown sand movement, the overall movement of sand dunes, surface wind erosion, sand cutting, sand burial and sand dust release caused serious harm to farmland, grassland, industry and mining, major transportation facilities and natural and cultural heritage, and greatly exacerbated the occurrence of disastrous weather such as land desertification and sandstorms, and the average annual economic loss of China due to sandstorm disasters exceeded 50 billion yuan.