Why should we strengthen the protection of the soil environment?

Strengthen the construction of soil environmental protection systems. Improve soil environmental quality standards, and formulate measures for the supervision and management of soil environmental protection and technical specifications for agricultural product producing areas. Research and establish a system for assessing and filing the soil environmental quality of land used for construction projects and a system for the investigation, assessment and restoration of polluted soil, and clarify the responsible entities and requirements for governance and restoration.

Due to the urbanization of human beings, the construction of cities occupies a large amount of land, in addition, human activities such as white garbage, waste batteries, solid waste, etc. have caused great damage to the soil, and more seriously, the current land desertification is serious, these reasons have directly led to the shrinkage of agricultural land area, and the global environment is more harsh, so the protection of soil has been a key topic for environmental activists.

% of food comes from the soil.

Food comes from the soil. It is estimated that 95% of food is grown directly and indirectly from soil. Therefore, the availability of food depends on the soil. Only healthy soils can produce healthy, high-quality food. Healthy living soils are important for food security and nutrition.

2. Soils contain a quarter of the world's biodiversity.

Soil is one of nature's most complex ecosystems: it contains an infinite number of different organisms, whose interactions promote global cycles that sustain all life. Soils contain a quarter of the planet's biodiversity, which is essential for food security and nutrition.

3. There are more than 1,000 species of invertebrates in one square forest soil.

More than 1,000 species of invertebrates can be found in every square meter of forest soil, and the soil provides the necessary conditions for these organisms to survive.

4. One gram of healthy soil contains millions of organisms.

One gram of healthy soil contains millions of organisms, including vertebrates, earthworms, nematodes, 20-30 species of mites, 50-100 species of insects, hundreds of species of fungi and thousands of species of bacteria and actinomycetes.

5. At present, 33% of the world's soils are degraded

Globally33 percent of soils are estimated to be moderately to highly degraded due to soil erosion, salinization, compaction, acidification, chemical pollution and nutrient depletion.

6. 28% of the crops produced globally are wasted.

It is estimated that 28 percent of the crops produced on the world's farms are wasted. The process consumes 250 cubic kilometres of water, and the carbon footprint of produced but not eaten food is estimated at 3.3 billion tonnes of CO2e.

7. It takes hundreds to thousands of years on average for one centimeter of soil to form.

On average, one centimeter of soil can take hundreds to thousands of years to form. The main factors for soil formation are: climate, topography, parent material, time and biological factors (plant, animal, microbial and human).

Different combinations and the intensity of soil-forming factors result in the production of different soil types.

8. Sustainable soil management can increase crop yields by an average of 58%.

Sustainable soil management practices, such as agroecology, organic agriculture, conservation agriculture, agroforestry and no-till, can increase crop yields by an average of 58 percent.

9. Soils contribute to climate change mitigation and adaptation.

Through carbon sequestration and greenhouse gas reduction, soils play a key role in the carbon cycle, contributing to climate change mitigation and adaptation.

10. Soil provides important ecological services for the earth's organisms.

Soils provide key ecosystem services, such as the production of food, fuel, energy and medicinal products; clean air and water; gas exchange and carbon sequestration; Wait a minute. Ultimately, these sustain all life.

1. Maintain and improve soil fertility, and take measures such as less chemical fertilizer and more organic fertilizer; conservation tillage; planting green manure and returning straw to the field to improve the content of soil organic matter; Reasonable fertilization to maintain soil nutrient balance; deep ploughing and deep ploughing; crop rotation and stubble, etc.

2. Prevent soil degradation, that is, prevent soil erosion, soil desertification, soil salinization, soil pollution, deterioration of soil properties and non-agricultural occupation of cultivated land. Prevent soil pollution, such as plastic film pollution, heavy metal pollution, pesticide pollution, organic pollutant pollution, etc.

Specific measures for plastic film pollution include the use of thicker plastic film, mechanical plastic film, picking up plastic film, and using degradable plastic film. Heavy metal pollution, pesticide pollution, and organic pollutant pollution are mainly prevented, and prevention and control are combined. Other concrete measures include afforestation, rational irrigation and drainage, and the use of soil amendments.

1. Plant cover crops.

After harvesting the main cash crops, cover crops are planted in the fields. For example, after the corn is harvested, several herbaceous plants are planted in combination on the harvested land, depending on the local climate and soil conditions. This helps to reduce soil erosion, inhibit the growth of weeds, and increase soil organic matter, nutrients, microorganisms and soil fauna (earthworms, etc.).

2. Crop rotation. On the same field, different crops or combinations are sequentially rotated between seasons or years. It reduces the consumption of the same soil nutrients, while reducing soil erosion, improving soil fertility and crop yields.

3. Straw returning to the field.

Straw that is not suitable for direct feed is applied directly or in piles and rotted into the soil. Straw returning can also increase soil organic matter, improve soil structure, promote microbial activity and crop root development.

Returning farmland to forests, using more organic fertilizers, greening the land, etc., I don't know what you're asking.

Strengthen the prevention and control of soil pollution sources.

It is necessary to adhere to the concept of systems, and make overall arrangements for the prevention and control of soil pollution and the prevention and control of air, water, and solid waste pollution, implement comprehensive policies, and advance them as a whole. Comprehensively investigate enterprises involved in cadmium and other heavy metal emissions, include cadmium-related and other heavy metal emission enterprises in the list of key pollutant discharge units in accordance with laws and regulations, strictly control the emission of cadmium and other pollutants in heavy metal industries, and encourage upgrading and transformation.

Focusing on the provinces where mineral resource development activities are concentrated, focusing on mining areas such as heavy non-ferrous metals, stone coal, pyrite, etc., as well as mining areas around areas where cultivated land is concentrated in the safe use and strict control category, comprehensively investigate the disorderly storage of historical solid waste, formulate remediation plans, treat them in stages, and gradually eliminate the stock.

Effectively control the risk of soil pollution on construction land

We should focus on plots of land that have been changed to residential, public management, and public service land, carry out soil pollution status investigations and risk assessments in accordance with the law, strictly manage access, resolutely put an end to illegal development and utilization, and effectively ensure safe use. Land plots entered into the directory for soil pollution risk management and restoration of construction land must not be used for residential, public management, or public service land.

Plots that have not carried out or have not yet completed soil pollution status investigations or risk assessments that shall be carried out in accordance with law, as well as plots that have not reached the risk control, control, and restoration goals set forth in the soil pollution risk assessment report, must not start construction of projects unrelated to risk control, control, and restoration. When compiling territorial spatial planning, all localities should fully consider the environmental risks of soil pollution on construction land, and reasonably determine land use; Strictly control the planned use of heavily polluted land in pesticides, chemical and other industries, and truly need to be developed and utilized.

1. Land is the main space for human habitation and biological survival. 2. Soil nutrient status in agricultural facilities can affect the yield and quality of crops. 3. Soil has the function of decomposing and transforming organic pollutants.

4. The soil can fix the plant root system, has natural fertility, and can promote the growth of crops and agricultural production.

Composition of the soil

The substances in the soil can be summarized into three parts, which are the solid part, the liquid part and the gas part.

1. Soil minerals are mineral particles of different sizes (sand, soil and colloid) formed by weathering.

2. The solid soil particles composed of minerals and humus are the main body of the soil, accounting for about 50% of the soil volume, and the pores between the solid particles are occupied by gas and water.

3. Most of the soil gas is oxygen and nitrogen entering the atmosphere, and a small part is carbon dioxide and water vapor produced by life activities in the soil. The moisture in the soil enters the soil mainly from the surface and includes many dissolved substances.

The dangers of soil contamination

1. After the soil is polluted, the crops will also be polluted, thereby reducing the yield and directly leading to serious economic losses.

2. Soil pollution leads to the continuous decline of biological quality, and the taste of vegetables will deteriorate, rot, and even unpleasant odors.

3. Endangering human health. When people eat contaminated crops, it can endanger their own health and even cause cancer.

4. Polluting the environment, resulting in air pollution, surface water pollution, groundwater pollution and ecosystem degradation and other ecological and environmental problems.

Protecting the soil and promoting sustainable development.

Soil is an important part of the ecosystem and is essential for human production and life. However, due to irrational agricultural production methods, wasted resources, excessive use of chemicals and other factors, soil quality is gradually deteriorating, and the impact on the ecological environment is becoming more and more significant.

The importance of soil conservation.

From an environmental point of view, soil protection is very necessary. First of all, soil brightness is an important part of the ecosystem, and soil protection is directly related to the stability of the ecological environment. Second, soil is the material basis of agricultural production, and protecting the soil is conducive to the sustainable development of agriculture.

Again, soil is a very important carbon reservoir on Earth, and if carbon from soil is released into the atmosphere, it will greatly exacerbate climate change.

Soil protection is also very important from an economic point of view. The deterioration of the ecological environment will cause direct economic losses to agricultural production, water resources, eco-tourism and other aspects. Therefore, protecting the soil is an important foundation for protecting economic development.

A practical approach to soil conservation.

1.Transform the way agriculture is produced. Rational use of organic fertilizers, precise use of chemical fertilizers and pesticides, and fertilization according to crop needs, so as to reduce the load on the soil.

2.Promote scientific farming. Adopt scientific farming methods to promote the natural recovery and improvement of the soil.

3.Rational use of water resources. Maintain soil and water conservation measures to avoid soil erosion, and at the same time make rational use of water resources and reduce the load on the soil.

4.Establish a system of land fallow. By rotating tillage and fallow, soil fatigue is reduced, soil fertility is increased, and the service life of the soil is extended.

5.Increase vegetation cover. Appropriately increasing vegetation cover can reduce soil erosion and water evaporation, and protect the soil.

6.Actively carry out the prevention and control of soil pollution. Strengthen the monitoring and control of soil pollution, and promote the production and consumption of green products.

Conclusion Soil protection is a top priority, and the importance of soil protection is self-evident. To achieve sustainable development, we must start with soil protection and take a series of measures to protect our land.

To protect the soil, it is necessary to reduce the amount of chemical fertilizers used to avoid soil compaction and stiffness, which affects the absorption of water and nutrients by plants, and to dispose of plastic bags and batteries according to waste sorting standards to avoid soil pollution, and to plant plants on the soil to protect water and soil.

1. Reduce chemical fertilizers

If you want to protect the soil, you need to use pesticides and fertilizers reasonably, because too much use of chemical fertilizers will lead to soil compaction and stiffness, which will make the soil texture worse and affect the growth of crops.

2. Garbage classification

It takes thousands of years for plastic bags to decompose, and when it is buried in the soil, it will reduce the permeability and drainage of the soil, hinder the growth of plant roots, and affect the absorption of water and nutrients by plants, while waste batteries contain heavy metals such as cadmium, mercury, and lead, which will make a square meter of soil lose its use value.

3. Plant plants

If you want to protect the soil, you need to plant plants in the soil that can protect the water and soil, you can breed dogtooth roots, honeysuckle, knotweed, early maturing grass, tall fescue and other plants to avoid soil erosion, and in desert areas, you can plant plants such as Saxon tree, meat hibiscus, halophyte grass, cactus and so on.

4. Protection methods

When protecting the soil, chemical amendments can be applied to the soil to convert heavy metals in the soil into insoluble compounds, lime, sulfides, carbonates, etc., and the soil cannot be dug up in the soil at will, because this will destroy the vegetation in the soil, and will also take away the surface soil, causing debris flows and other events.

Methods to protect the soil include the rational use of chemical fertilizers, the rational use of pesticides, and the use of chemical amendments.

The scope, amount and frequency of use of toxic fertilizers need to be strictly controlled. Excessive use of chemical fertilizers can lead to stiff soil compaction. As a result, the soil texture deteriorates, affecting the growth of crops.

The rational use of pesticides requires attention to the development of pesticides with high efficiency, low toxicity and low residue. The rational use of pesticides can reduce the pollution of the soil and maximize the positive effects of pesticides.

To protect the soil, chemical amendments can be applied to the soil. Converting heavy metals in the soil into hard-to-dissolve compounds requires the use of lime, sulfides, carbonates, etc.

A brief review of soil conservation

Plants have a protective effect on the soil, and the roots of plants are relatively developed. It can be tightly tied to the soil, fixing the soil and preventing soil erosion. And the leaves of the plant are able to photosynthesize, and the carbon dioxide in the air is released by the suction bucket or collected to release oxygen, which promotes the circulation of the entire ecosystem.

Some tall plants have an unusually wide canopy, which can resist the erosion of rain and avoid damaging the soil. Therefore, it is necessary to protect plants in life and plant plants reasonably.

If you want to improve the porosity of the soil, you can mix perlite, coarse sand and other substrates into the soil to improve the drainage and air permeability of the soil. If you want to improve the fertility of the soil, you can mix organic fertilizer, slow-release fertilizer and other fertilizers into the soil to improve the fertility of the soil. Using more organic fertilizer can also slowly improve the porosity of the soil.

To improve the pH of the soil, you can add sulfur powder to the soil. Usually water alum fertilizer water and peel water to reduce the pH value of the soil and make the soil acidic.