Why can t straw be burned, and why is the phenomenon of straw burning repeatedly banned? Why?

In general, the hazards of burning straw are:

One is to pollute the atmosphere. Generally speaking, the air quality in rural areas of China is better than that in cities, but due to the burning of straw, the concentration of soot, particulate matter and other pollutants in the air increases sharply, and the air quality declines rapidly, which is not conducive to human health.

Disadvantages of straw burning:

1. The burned soil is compacted, which is not conducive to cultivation.

2. Smoke causes environmental pollution.

3. Resources are wasted, and organic matter is burned in vain.

4. It is easy to cause fire.

Utilization of straw:

1. New energy, such as biogas.

2. Feed. 3. Fertilizer.

4. It can be crushed and extruded as a substitute for coal.

1. The burned soil is compacted, which is not conducive to cultivation.

2.It is easy to cause fires, and many accidents have occurred in our village.

3.There is a serious waste of resources, and the organic matter is burned in vain.

4. Serious environmental pollution.

In the countryside, after the corn is harvested, there will be some straw in the field, and some farmers will choose to burn it in order to save trouble, but this has great safety hazards, may cause fires, and will also pollute the air, but why is this phenomenon repeatedly banned? Because on the one hand, many farmers do not realize the seriousness of the matter, and they are lucky, thinking that they will not be caught. On the other hand, it is also because some farmers think that this is more convenient and can be used as fertilizer, so I will explain it to you in detail.

1. Some farmers are lucky, and they have insufficient understanding of the harm of burning straw.

In the countryside, many people will burn straw before, because if you deal with the land again, it will be very troublesome, so it is better to burn it directly with a fire, saving time and effort, but now we are prohibiting the burning of straw for better development, although there are such regulations, but we do not have so many people to implement such regulations, so some farmers are lucky, thinking that they will not be caught if they do such a thing, so they are not afraid, and they have insufficient understanding of the harm of burning straw, It is not a big deal to think that just burning one acre of one's own land, so it is also necessary to strengthen the awareness of the dangers of farmers burning straw. <>

2. The ash after burning straw can be used as fertilizer.

In addition to the above reasons, there are also some farmers who will deliberately burn straw, because before, they have always used the remaining ash after burning straw as fertilizer for the land, so that it will grow better in the coming year, so some people deliberately burn straw, which is of course a contradictory point, but for the sake of the overall situation, we should still prohibit the burning of straw, as for fertilizer, you can choose better fertilizers to help plants grow. <>

All in all, the reason why the phenomenon of burning straw is repeatedly prohibited, on the one hand, many people are lucky, thinking that they will not be caught, on the other hand, farmers do not have enough understanding of the harm of burning straw, thinking that just burning their own one acre of land, there is no problem, and the ash after burning straw can be used as fertilizer.

In the autumn harvest season, straw burning enters a high incidence period. Open burning of straw and fruit vines can cause multiple hazards and lead to air pollution. In the early days, there was no unified requirement for straw treatment, and in summer and autumn, a large number of straw burning led to a significant increase in the number of suspended particles in the air, and the incineration produced a large number of harmful gases such as carbon monoxide and carbon dioxide, polluting the atmosphere.

Another important reason for the ban on open burning is the difficulty of management, starting with the fragmentation of the planting area, and most of these farmers leave on their own after burning the straw. When the law enforcement team arrived at the scene, they only saw billowing smoke, but could not find the incinerator, and the evidence at the scene could hardly lead to severe punishment. Secondly, the "bad punishment", even if it is caught correctly, there are some people who think that it was accidentally ignited, not intentionally burned, and the punishment conditions are not sufficient, and in the end they can only criticize the education.

In areas where mechanical harvesting is inconvenient, such as mountainous areas and scattered plots, it is also necessary to respect the planting habits of farmers, explore the policy of banning agricultural awards, and organize agricultural extension personnel to go to the field, prohibit publicity and technical guidance, and take measures to adapt measures to local conditions. Expand the channels of off-site utilization from the field, advocate covering fruits, livestock and poultry, bamboo shoots, forest trees and other gardens, and give full play to the comprehensive benefits of fertilizer, water retention, drought resistance, and grass suppression. Traditional straw fuels have been replaced by coal, electricity and natural gas.

Therefore, there is less domestic animal husbandry, straw is not used as feed, and there are few straw channels.

If power generation enterprises, livestock and poultry breeding, and mushroom planting buy less, there will be no way to get rid of straw in rural areas, and farmers really have no choice but to burn straw on the spot. Farmers do not have a strong sense of safety and cannot deeply understand the hazards of straw burning. In addition to strengthening the comprehensive utilization of straw, it is also necessary to strengthen the publicity and education of farmers, implement the incentive and subsidy policy, and increase the punishment.

Special projects should be set up to give incentives and subsidies to farmers who return farmland to land and grassland in areas where straw is not burned. At the same time, it is necessary to strengthen the punishment for burning straw, and impose fines on users of land management rights who burn straw in violation of regulations.

I think the main reason is that burning straw is very important for the land, which can ensure the fertility of the soil, so it will be repeatedly banned; The main reason is that farmers don't think there's anything wrong with this kind of behavior, and they don't think that just burning some crop poles will have a serious impact on the air.

First, at present, young people in rural areas mostly go out to work and are unwilling to do work related to straw processing; Second, the level of agricultural mechanization has improved, there are fewer large livestock, the use of straw as forage has basically ended, and the use of electricity, gas and coal for farmers' daily life has been dominant, and the use of straw as a living fuel has basically ended.

Because burning straw is the easiest way to dispose of it, if it is not burned, the straw will take up a lot of space and will be useless.

It wasn't a single expert, it was a policy.

Article 41 of the Law of the People's Republic of China on the Prevention and Control of Air Pollution stipulates that the burning of asphalt, linoleum, rubber, plastic, leather, garbage and other substances that produce toxic and harmful smoke and odorous gases is prohibited in populated areas and other areas requiring special protection in accordance with the law.

It is forbidden to burn straw, fallen leaves and other substances that produce smoke and dust pollution in populated areas, around airports, near traffic arteries and in areas designated by local people.

Comprehensive utilization of straw burning:

1. Mechanized straw returning to the field. There are two ways to return straw to the field: one is to break the straw with machinery, turn it deep and bury it strictly during farming, and use the microorganisms in the soil to decompose the straw.

Another effective way to return straw to the field is to crush the straw, mix it with an appropriate amount of lime and human and animal manure, let it ferment, deteriorate and rot in a semi-oxidized and semi-reduced environment, and then take out the fertilizer field for use.

2. Return to the field over the belly. Returning the straw to the field is to treat the straw through silage, micro-storage, ammoniation, thermal spraying and other technologies, which can effectively change the organizational structure of the straw and make the straw become a high-quality feed that is easy for livestock to digest and has a good taste.

The above content reference: Encyclopedia - Straw burning.

Because burning straw can produce the following hazards:

1. Cause traffic accidents and affect road traffic and aviation safety. The smoke formed by burning straw causes a decrease in air visibility and a decrease in the visible range, which directly affects the normal operation of civil aviation, railways and highways, and is easy to cause traffic accidents and affect personal safety.

2. Cause a fire. Straw burning can easily ignite the surrounding flammable materials, resulting in "fire and camp", and once it triggers a wheat field fire, it is often difficult to control and cause economic losses. Especially in the vicinity of mountains and forests, the consequences are even more unimaginable.

3. Destroy the soil structure and cause the quality of farmland to deteriorate. Straw burning also enters the ground, the microorganisms in the surface are burned to death, humus, organic matter is mineralized, and the burning of straw in the field destroys the balance of this biological system, changes the physical properties of the soil, aggravates soil compaction, destroys soil fertility, exacerbates drought, and thus affects the growth of crops.

4.It produces a large number of toxic and harmful substances, which threatens the health of humans and other living organisms.

In fact, straw is a very valuable food crop resource, which contains a lot of rich and diverse organic substances, mainly including nitrogen, phosphorus, potassium, etc., and incineration can only lead to waste of resources. Therefore, in recent years, the national and local departments have been actively promoting the use of straw, and the prohibition of incineration is to make it more effective. Part of the reason is that the environmental pollution caused by straw burning also deserves great attention.

Because of the special material composition of straw, a large amount of sulfur dioxide and nitrogen dioxide will be released in the incineration process, which not only causes bad harm to the natural environment, but also harms the human body.

In China, there is a high incidence of haze pollution in spring and autumn, which is also partly due to straw burning. Such weather has an impact on the health of the public and the natural environment, and there are also safety risks, and a large number of road traffic accidents are more likely to occur in the case of continuous haze and low visibility, which has a serious impact on our normal life. Major fires related to straw burning.

Actually,The season of straw burning is generally the windy season, and fire accidents may occur if you are not careful in the incineration process, and the fire situation cannot be controlled by human factors, so straw burning can also pose an important safety hazard.

Why can the United States burn straw?

Actually,In foreign countries, straw burning also needs to be submitted for application, and it is generally necessary to meet many necessary incineration standards before centralized incineration can be carried out. This has also led to a reluctance among some American farmers to burn straw. Foreign countries are sparsely populated, and his land resources will promote the phenomenon of fallow or rotational agricultural land.

Generally, foreign straw is crushed according to the equipment, sprinkled in the field and waited for sufficient decay, and then dissolved organic matter to bring rich and diverse chemical fertilizers to the soil layerThe learning process is very slow. And our country has a very large population, and agricultural land is also very anxious, and it is unlikely that it will be fallow for so long.

Naturally, except as fertilizerU.S. farmers generally prefer to use straw as concentrate feed to feed their livestock on their pastures. Foreign countries are all large agricultural countries, but farmers generally not only have vast land resources, but also raise a lot of livestock. In the United States, farms and farms are usually adjacentThe surplus of food crops is used as concentrate feed for livestock, and the excrement produced by livestock can be used as fertilizer for crops.

The breeding and planting areas in our country are separated, and the straw needs to be transported at a high cost, and the farm is not willing to spend the most money to transport the straw, which greatly affects the reuse of the straw! In fact, there is no comparison, because we and the United States have different geographical factors and specific conditions, although China is rich in products, but the population is very large, the southern region is more developed aquaculture industry, and the northern region has a large number of agriculture. It is precisely because of many different factors that the two countries look at the issue of straw burning very differently.

The reasons for burning straw are as follows:

1. Increase soil fertility. Straw contains a lot of minerals and charcoal, and the ashes after burning are left in the soil, and the next year's crops can absorb these substances to promote growth;

3. Insufficient management efforts.

Correct method: The straw is fermented to produce biogas for daily fire or heating, and the biogas residue is returned to the field. Nutrients such as minerals can be used as energy sources when they return to the field.

Since the digestate contains a large amount of organic chanting substances, it is good for improving the soil and is an organic fertilizer.