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With the growing growth of the country, Gaoqin Qisu Highway has become a necessary choice for everyone's daily transportation. Road transport is the country's social and economic infrastructure, a region's economic development can also be reflected from the level of transportation, a country's overall strength depends on the penetration rate of the highway network.
The speed of the highway is relatively fast, if you plant crops will be very dangerous, harvesting crops and watering and fertilizing will become very troublesome, there is no green belt simple, the green belt does not need to be often managed, so you can not plant crops, only green. For safety reasons, but also to reduce environmental pollution, after planting greenery, it can also reduce noise, which will make our drivers feel relaxed and comfortable, and it is also for future expansion. played a beautifying role.
We all know that exhaust emissions are one of the specific aspects of gas pollution, and there are thousands of different chemicals in the organic exhaust gas formed by vehicles in the whole process of driving, especially carbon dioxide and sulfur dioxide. When sulphur dioxide reaches a certain level, it will cause "acid rain hazards" in this large city.
Acid rain causes alkalinization of soil and water resources, harming food crops and forests. Excessive carbon dioxide excretion can be disgusting, dizzy, and in severe cases, lead to tumors and harm blood circulation. Comparatively, it is better to grow greenery than to grow crops.
Flowers and trees can reasonably block the dust from the construction site on the fast and block it in the protective net.
Biologists have studied soil on both sides of the road and found that the soil on both sides of the road has different levels of lead pollution at about 100 meters, especially the soil 50 meters from the road. Therefore, the state requires that 50 meters of pre-buried as a boundary line on the highway can not be planted crops, but is used for landscaping. In 2000, a strict ban on the use of leaded gasoline was promulgated, but lead pollution of land resources is still very serious.
Cereals, vegetables and fruits will digest and absorb lead-polluted nutrients from the soil and air when they grow and develop, and shellfish that grow and develop in polluted seas will also accumulate lead pollution. Once lead-contaminated products are swallowed, lead will continue to accumulate in the body, causing symptoms of lead poisoning due to disorders in human hematopoietic function, kidney function and autonomic nervous system. Although there is a risk that our country will have a shortage of food crops in the future, we will not grow crops on the edge of the fast.
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This is because some greening management is carried out within 50 meters on both sides of the highway, which can effectively reduce the noise on the highway, so this is a kind of regulation on the highway, and this kind of crops may cause the crops to be too long to block the driver's sight. Therefore, it is not possible to grow crops.
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Because this is not conducive to the healthy growth of the crops, and will also affect the yield of the crops, and it will also make the environment on both sides of the road very poor, so the high speed should not include accompanying crops within 50 meters on both sides of the plant, but should be greened.
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Because these are all stipulated by the state, planting green plants on both sides of the high finch speed code can beautify the environment, but also relieve the fatigue caused by driving, and can protect the environment. It's a mold branch.
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There are many reasons why crops can not be planted within 50 meters on both sides of the highway can only be planted green, first of all, the pollution on both sides of the highway will be more serious than that of Bichang, and the crops planted can not be eaten. Second, the presence of crops on both sides of the highway will have an impact on the highway. In addition, crops on both sides of the highway are prone to car accidents.
In addition, greenery can reduce noise, block dust, and beautify the city.
First of all, the pollution on both sides of the highway will be more serious, and the crops grown will not be edible. Cars pass by on both sides of the highway every day, and the exhaust fumes emitted by the cars can pollute the environment, such as acid rain.
Acid rain causes acidification of soil and water sources, affecting crops. In addition, the soil on both sides of the highway has been tested and found to have different levels of lead pollution, and the crops grown in this soil are inedible and will cause damage to the human body.
Second, planting crops on both sides of the highway can cause the highway to collapse. Because heavy crops need to clear the land and make sure the soil is loose before it can be fertilized and sown. If the soil is loosened, it will affect the roadbed under the expressway, which may cause collapse or crack the expressway, and the traffic will come and go every day, which will seriously endanger the traffic safety on the expressway.
In addition, crops on both sides of the highway are prone to car accidents. When the driver is driving, there are green plants on both sides to relieve visual fatigue, which will be safer. When we feel eye fatigue, it is generally much more comfortable to look at the green plants in the distance.
However, if all the wheat fields are endless, it is easy to cause visual fatigue and accidents. In contrast, it is more appropriate to plant on both sides of the road.
In addition, greenery can reduce noise, block dust, and beautify the city. The highway is noisy every day, the noise is very loud, the tall trees can play a role in weakening the noise, but the crops can't do it, because it doesn't grow tall enough, there is no way to shelter from the shade, there is no way to reduce the noise, and it can't block the dust, so there are no crops planted near the highway.
The above is the reason why crops cannot be planted within 50 meters on both sides of the highway.
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Because the distance left on both sides of the highway is to facilitate the transformation and widening of the road in the future, and the soil next to the highway is seriously excessive in lead and mercury, and there are many harmful substances in the soil, so it is not conducive to the growth of crops, followed by safety issues, if both sides of the highway are planted with crops or greening, someone needs to work here to work early, if some traffic accidents occur in the car, then it may also cause health effects to the people who grow crops.
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It is because the road surface may be widened after the highway, and the lead and mercury situation in the soil next to the highway is very serious, and the crops planted may reduce the yield of the old branches, and the collapse may endanger people's health, and the safety of farmers in the planting process cannot be guaranteed.
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Scientists have extracted the soil on both sides of the highway and found that the soil within 100 meters on both sides of the road has different degrees of lead pollution, and the soil is particularly serious 50 meters away from the road.
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This can make the environment better, the air can be better, and the temperature can be adjusted by green things, which can better protect the road surface.
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Because the speed of vehicles on the highway is relatively fast, if you plant crops will be very dangerous, harvesting crops and watering and fertilizing will become very troublesome, there is no green belt is simple, green belt does not need to be managed often, so you can't grow crops, only green.
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This happens because it affects the growth of crops, and it also affects the aesthetics of the road.
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"Scientists have extracted soil from both sides of the road and found that the soil within 100 meters on both sides of the road has varying degrees of lead contamination, especially in the soil 50 meters from the road. Therefore, the state stipulates that 50 meters of the highway is reserved as a boundary not to grow crops, but to do greenery. In 2000, a ban on the use of leaded gasoline was introduced, but lead contamination of the land is still very high.
Grains and vegetables absorb nutrients from lead pollution from the soil and air when they are grown, and shellfish and aquatic products grown in polluted waters can also accumulate lead pollution. Once ingested with lead-contaminated products, lead will accumulate in the body and cause lead poisoning due to hematopoietic, renal and neurological disorders. ”
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This measure is also to better maintain the high-speed environment, because cars coming and going may release exhaust gases, and greening can purify the air environment.
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I think this is mainly for safety reasons, after all, the speed of the car on the highway is relatively fast, and if there is a car accident, it is easy to affect the farmers who are working nearby.
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Good afternoon! First, because the exhaust gas pollution on both sides of the road is serious, and the crop foundation rock produced may not meet the food standards. The second reason is that when planting crops, the soil will be ploughed, and the fields will be watered and planted, which will cause problems such as soil erosion.
Third, it is because planting crops requires the sowing of pesticides, and in urban roads, the sowing of pesticides has a certain danger. Moreover, it is difficult for crops to grow in places with more dust, which is easy to cause slow growth and stiff seedlings, and cannot obtain corresponding economic benefits. Some green belts are located on the road, and farmers need to cross dense traffic when planting crops, which has certain safety hazards.
In addition, the growth of crops is not high, and it cannot meet the requirements of shelter, noise reduction, and beautification of the city, so there are no crops planted in the green belt. Of course, with the improvement of China's agricultural technology level, and breeders have cultivated generations of high-yield seeds, the improvement of chemical fertilizers and pesticides has made China's grain output hit new highs, even if crops are not planted in the green belt, it will not cause famine. It is for these reasons that there are no crops or even perennial fruit trees in the green belt, but some excellent tree varieties suitable for local cities.
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First of all, not to mention that within 30 meters on both sides of the expressway, crops cannot be planted to be greened, and even the newly built national and provincial highways in rural areas, the traffic management department has regulations that no one is allowed to build houses within 20 meters, which is for the sake of everyone's life and property safety; After all, if there is a traffic accident, it may affect both sides of the highway, so if there is no housing within 30 meters of the highway, it will not hurt people's lives! In addition, if the tire is pressed on the stone, this consequence must have been experienced by everyone, that force is definitely not small, if there is really someone below, it is definitely a very serious injury to the body, and it may even endanger life!
In addition, the speed of the highway is very fast, it is inevitable that there will be dust raised, if the wind can drift far away, the green belt can effectively reduce the distance of dust fluttering, play the role of speed bumps, similar to the effect of the shelterbelt we planted in the northern desert area; Besides, if you don't carry out greening on both sides of the highway and let everyone plant crops, you use a hoe to dig up the highway slope protection grass and trees every year, and loosen the highway soil to a low place, which will lead to soil erosion on both sides of the highway when encountering heavy rain in spring, and planting greening can play a role in protecting soil and water and stabilizing the roadbed, especially in some areas where soil erosion is more serious, planting trees on both sides of the highway is a good way to stabilize the roadbed and prevent soil erosion.
At the same time, if there are crops on both sides, there are more kinds of animals, pheasants, hares, all kinds of birds, etc., and if they are often haunted, they will be hit by vehicles coming and going, so fast, it is also very dangerous to hit these small animals; However, with the highway in the process of constantly finding problems and solving problems, the whole process of turning into butterflies has been completed, and the greening on both sides of the highway has also become a beautiful scenery, passing the green to everyone's eyes. The second is to protect the roadbed, as well as the modification of the air.
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First, in accordance with national regulations, 50 meters should be reserved on both sides of key highways, 30 meters for ordinary highways, 20 meters for national roads, 15 meters for provincial roads, 10 meters for county roads and 5 meters for township roads. It can only be used for greening within a limited distance.
Second, planting greenery on both sides of the highway is conducive to beautifying the environment and reducing the fatigue caused by driving and riding.
Because green is the best color for the eyes, it is good for drivers to relax their vision, relieve fatigue and enjoy the body and mind to a certain extent.
Third, purify the air and protect the environment. Because the highway is full of cars, where there are cars, there will inevitably be car exhaust, so if the environmental pollution is too serious, it will not only cause environmental pollution to nearby residents, but also a lot of dust will be raised to affect the driver's driving, so greening can effectively reduce the distance of dust flying, play the role of speed bumps, and the effect is similar to the effect of the shelterbelt we planted in the northern desert area.
Fourth, as a buffer zone, protect the crops near the reserved area, if the roadside is directly the crop field, there is no buffer zone, in case of traffic accidents along the way, it may damage the crops in the field, and may also hurt the farmers in the field, the crops are damaged and can be replanted, but if the damage to the farmers is difficult to remedy, so the buffer zone is very necessary.
Last but not least, the surrounding greenery can regulate the temperature of the road surface, which can cool down the highway in the summer and prevent accidents caused by flat tires.
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Stipulate the scope of the green belt on both sides of the expressway: the highway slope top drainage ditch or slope foot protection ramp outward 30 meters + not less than 1 meter (specifically determined by the local **) within the scope of the highway land and ground buildings, structures, attachments. This means that the 30-meter area on both sides of the highway is a green range, and the 50-meter green range mentioned in the question should be within the local green range.
What are the advantages of setting up green belts on highways?
Stabilize the roadbed: this is very easy to understand, we know that greening trees have the effect of protecting water and soil, planting greening trees on both sides of the highway naturally also has the role of conserving water, protecting water and soil, and stabilizing the roadbed, especially in some areas where soil erosion is more serious, planting trees on both sides of the highway is a good way to stabilize the roadbed and prevent soil erosion.
The role of guiding sight: We know that driving on the highway is a very tiring thing, especially when it comes to visual fatigue. At this time, the trees in the green belt can play a good role in relieving.
In addition, street trees can also serve as a good guide to the driving route, which is very important in unfamiliar places. I remember seeing a friend's ** this winter, which is a long-distance bus parked on the side of the road, because there are no street trees on the side of the road, the snow will cover the road surface, and there is a white expanse everywhere, and I can't tell the highway in **, which reflects the role of street trees on both sides of the road.
Isolation: The traffic flow of the highway is very large, and the exhaust pollution, noise pollution, and light pollution are relatively serious. And the green belt can also play a good role in dust, sand, wind and other effects.
It is not only a protection for the highway, but also a protection for the environment near the highway.
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