Deforestation can form haze, and the specific role of forests in haze prevention and control

Forest vegetation has the effect of interception, adsorption and retention, and the positive effect is obvious, for example, the forest belt in the park has a role in slowing down the aggregation.

Some have likened forests to "green purifiers" for regulation. The project team has now found that the forest has a definite aggregation effect. For example, the forest belt on the edge of Beijing's Fifth Ring Road is built in combination with the green space of Beijing Olympic Park, which is about 50 meters to 100 meters wide, and can play a "sink" role, and part of the car exhaust on the Fifth Ring Road will be enriched and gathered by the surrounding forest belt.

The reason for this phenomenon is that the forest belt is shady and the relative wind speed is low, and the second is that the humidity in the forest is relatively high, forming a low wind and high humidity environment, and the forest vegetation is like a net, which is temporarily fixed inside the forest belt. Scientists have also found an effective width for enrichment, for example, a poplar forest belt that needs to be at least 18 meters wide so that the concentration on the other side of the forest belt is lower than the concentration on the side of the pollutant source in the forest belt. As an actor, forest vegetation must have a certain volume in order to play a role.

Forests are the main body of terrestrial ecology, and forests are the core of the virtuous circulation system of the atmosphere, which has the functions of dust removal and air purification. The nemesis of haze is rain, and a good forest ecosystem can bring a favorable atmosphere and reduce the formation of haze.

However, there is no specific research to explain how many unique scientific data are used to reduce the unique function of forest ecosystems in retaining and absorbing particulate matter from the atmosphere? What forests have a stronger adsorption capacity than particulate matter in the atmosphere? How do forest ecosystems absorb and transfer particulate matter from the atmosphere?

Tmall reminds you that the United States imports Puweixin anti-haze.

In order to study the impact of biological measures on particulate matter in the air, on January 16, 2013, the State Forestry Administration launched the project "Research on the Regulatory Function and Technology of Forest Particulate Matter", which will explore and solve these problems. The project has brought together more than 100 multidisciplinary experts from Beijing Forestry University, Chinese Academy of Forestry, Chinese Academy of Sciences, Peking University, Beijing Municipal Bureau of Landscaping, Beijing Academy of Agriculture and Forestry Sciences, Guangdong Academy of Forestry and other units to form a team to carry out collaborative research, which will provide scientific research data to answer these questions in the future.

Forests are the main body of terrestrial ecosystems, which have various functions such as carbon sequestration and oxygen release, wind prevention and sand fixation, water conservation, soil conservation, soil improvement, and pollution reduction, and play an important role in improving the ecological environment, maintaining ecological balance, and protecting the "basic environment" of human survival and development. The 18th National Congress of the Communist Party of China included the construction of ecological civilization in the overall layout of the "five-in-one" of socialism with Chinese characteristics, and proposed for the first time to build a "beautiful China" and achieve the goal of sustainable development. The recent haze weather in China has a great impact on people and is seriously harmful.

This paper introduces the occurrence of haze phenomenon, expounds the role of forestry ecological environment in preventing haze phenomenon, and proposes measures to protect forestry ecological environment. Haze is more harmful to the human body, wind can blow away the haze, ** or to solve industrial pollution, the whole people work together to fight haze to protect the environment, haze days to go out or wear masks, Puweixin Tmall imported from the United States has, can be effectively filtered.

1.Reduce the load of pollutants in the air.

The reduction of pollutant load in the air by green roof is mainly reflected in the absorption of CO2 and the adsorption of dust. The absorption of CO2 in the atmosphere by green roofs is mainly completed through the photosynthesis of plants, and the reduction of dust in the air has the following two ways.

2.Adsorption.

According to research, the leaves of many plants are uneven, dense and hairy, and some can also secrete viscous oil and juice, which has obvious blocking, filtering and absorption effects on dust and dust, and is an ideal natural dust collector. Compared with the ground plants, the roof greening plants grow in a higher position, which can intercept, filter and adsorb dust many times in the urban three-dimensional space, and the dust reduction effect is better.

Forest is a biological community with trees as the main body, which is an ecosystem formed by the interdependence and mutual constraints between concentrated trees and other plants, animals, microorganisms and soils, and the interaction with the environment. It has abundant species, complex structure, and a wide variety of functions. Forests are known as the "lungs of the earth".

This ** should have what you need.

One morning, the little squirrel came out of the house to find the forest surrounded by haze. The little squirrel thought, ask Grandpa Rabbit! It knows everything!

So the little squirrel jumped up and ran to Grandpa Rabbit's house, and when he arrived at Grandpa Rabbit's house, he saw Grandpa Rabbit and asked him: "Grandpa Rabbit, where does this haze come from?" Grandpa Rabbit said

I don't know, let's ask Grandpa Poplar, he knows everything. Then the little squirrel and the rabbit went to find Grandpa Poplar together, they searched and searched, and finally found Grandpa Poplar, and the little squirrel asked Grandpa Poplar, "Grandpa, do you know that this haze comes from **?"

This is because human cars emit too much exhaust fumes and exhaust gases from various other industries, which pollute our otherwise peaceful and harmonious natural air! "Oh, I see! The little squirrel said, "So what is there to do to reduce all this exhaust and pollution?"

Grandpa Yang said: "Then we must write an advertisement in the forest to tell human beings and tell our friends how to take care of our earth's resources and our nature." "The little squirrel has been thinking about Grandpa Poplar's problem when he comes home, and he is thinking about how to promote this environmental protection proposal.

Thinking about it, I wrote down my little thoughts: Dear friends, dear human friends, please drive less, ride more bicycles, and walk more, otherwise a large amount of exhaust gas will form a lot of exhaust pollution, which will pollute our air, let us inhale a lot of haze, and let our bodies be hit. Please take care of our nature, love our body, and please start from yourself, start from small things, green travel, low-carbon travel!

The leaflet posted by the little squirrel attracted the attention of the general public, and everyone felt that the little squirrel was very reasonable, if we don't start to care for our earth, then our children and grandchildren will suffer even greater disasters. We all need to work together to make our earth as fresh and sweet as ever, with clear blue skies and lush forests!

It can't be said that it doesn't work, but it really doesn't have much effect.

Let's start with the causes of smog, which is caused by the "exhaust gases" (sulfur dioxide, nitrogen oxides, and inhalable particulate matter, etc.) in the city, which become smog when the humidity is high. It can be seen that the main cause is excessive urban exhaust emissions.

Afforestation is obviously not possible in cities, and it is difficult to directly affect the air composition of cities outside cities.

Therefore, afforestation has little effect on haze control, and the effective way to control haze is to start from the source of waste gas and reduce waste emissions.

Afforestation has little effect on haze control, and the effective way to control haze is to start from the source of waste gas and reduce waste emissions. There is no way to improve air quality for a while. Masks have become a must. The Hydra can protect you better.

Long-term greening can ensure that the wind and rain are smooth, thereby reducing haze.

There are long-term benefits, but there are few results in the short term.

a. Human indiscriminate deforestation has led to the decline of the forest ecosystem, destroyed the habitat of organisms, and damaged the ecological environment a

b. Algae growth requires a large amount of N and P elements, and the sewage discharged by human beings makes the N and P elements in the water body seriously exceed the standard, which will cause algae to grow wildly, which will lead to a decrease in the oxygen content in the water and a large number of aquatic organisms to die

c. Haze weather is due to the fact that the air does not flow and is polluted, and a large number of droplets and small particles are suspended in the air, which are mainly caused by human pollution of the environment

d. Volcanic eruptions do not belong to the destruction of the biosphere by human activities dFalse Therefore, d

One morning, I woke up and found a white expanse outside. I asked my dad, "What kind of natural phenomenon is this?"

"It's smog, a harmful substance," he said. If you go out, you have to wear a mask, otherwise you will inhale toxic gases and get lung cancer, which is similar to smoking.

It turns out that this is a harmful gas. I finished breakfast and got ready to go to school. On the road, within three meters, it was almost impossible to see a single person.

The fog is getting bigger and bigger, I've never seen it before. Before I left, I looked at the "weather forecast" on my mobile phone by the way, and today is "heavy pollution", and the dressing assistant also prompted: wear a mask when you go out.

There is a poison called "in the haze", which is extremely harmful to the human body. If you take the mask off, you will inhale toxic gases, and if you don't take it, you will feel uncomfortable, so clear that it is really a dilemma!

When I arrived at school and finished the first class, I thought I would go out to do morning exercises and running as before, but the radio broadcast: "Please all students are invited to move in the classroom, due to the impact of haze weather, running exercises, morning exercises and other activities are suspended." "There was a commotion in the Jiaohuai chamber, and everyone was talking about the smog, which I think was so great that it couldn't take place for a series of events!

We spent a big break in the middle of the conversation. After the second lesson, we ushered in our favorite computer class. The computer class was to go to the computer room, but we had to pass through a foggy area, which caused a lot of entanglement.

No way, let's fight hard! I took a deep breath in the classroom, preparing to rush over without taking a breath on the way. I told my good friend about my idea, and she laughed

You're really good, you're going to run through two playgrounds! Can you hold it? I said helplessly

So what can be done? I don't want to bring a mask, but if I put it in my pocket in the computer room, won't it get dirty? Can't, take a few more breaths on the way, right?

Why not? Just take a few puffs and get out of the way. "I'm still worried

What if this air is as addictive as smoking? Forget it, I'd better wear a mask! She looked at me and couldn't laugh or cry.

The catastrophe before the microcomputer class was over, and we had a pleasant microcomputer class. Prepare to go to the station and leave school road team. Suddenly, there was a scream:

Yikes! You're stepping on me! "I have to say apologetically

The fog is too big, I'm sorry. "Until noon, the haze had not cleared, and it was like a naughty child, unwilling to leave his beloved toys, and still lingering here.

As soon as I went out, I found that the sky was yellow, so wrong! Mom said; "Looks like it's going to be stormy! ”

As I walked, I felt very stuffy in my chest, and I felt dizzy when I looked at things. I don't know if it's mud or dust floating in the sky, and there is a hint of fear. The sky is gray and the air is humid, giving it a very oppressive feeling.

The next day, during the Chinese class, the teacher asked us to discuss yesterday's haze weather. Some students said that it was caused by some farmers burning weeds, and some students said that it was a ...... caused by environmental pollutionAs for me, I think it should be caused by polluting the environment. In the end, it was the teacher who solved the mystery for us.

It turned out that this kind of weather was caused by the combination of polluting the environment and farmers burning weeds, but the teacher said: "Farmers burning weeds is just a catalyst, and the most important thing is that we pollute the environment." "In addition, the teacher also added some knowledge to us and asked us to talk about how yesterday was different from usual.

This smog made me realize that we must protect the environment!

Remember that if you have symptoms such as chest tightness, difficulty breathing, coughing, and eye discomfort, it is likely to be caused by the formation of haze.