Nowadays, there are poplar catkins all over the world, but do you know that there were no poplars in the mainland a long time ago?
I don't know from which year, every year in April and May, the sky is full of poplar catkins, every year because of poplars, the number of fires and respiratory diseases caused by countless people, people are annoying!
So, why didn't poplars in the past, but now they are everywhere?
It turns out that the "mastermind" behind this is caused by Japan!
The "man behind the scenes" is from Japan
You may not know that today's poplar floc is produced in Japan!
At present, most of the white poplar floc flying in the sky is produced from a poplar called "fast-growing poplar", but what you don't know is that this fast-growing poplar is not our native tree species, but brought back from Japan!
Fast-growing poplar is produced in Japan and was widely cultivated in Japan in the early years because of its many advantages.
For example, fast-growing poplar only needs 3-5 years to grow into a towering tree, and fast-growing poplar has strong stress resistance, wide adaptability, and can quickly adapt to different soil and climatic conditions, so it is planted a lot in earthquake areas in Japan;
In addition, because the fast-growing poplar grows quickly, the production of wood-framed houses and furniture in Japan is basically made of wood from the fast-growing poplar.
However, the good times did not last long, and in spring, the white poplar catkins on the streets of Japan not only caused many respiratory diseases, but also easily caused fires, which spread very quickly, causing Japan to suffer heavy losses!
When the Japanese government realized the dangers of fast-growing poplar, it took advantage of its fast-growing and easy-to-grow characteristics to spread it to China.
Initially, we were not aware of the hazards associated with fast-growing poplars, so there were few restrictions on their introduction and planting.
As a result, fast-growing poplars are now being planted in large areas in China, which also brings a series of ecological problems.
Not only that, but after planting fast-growing poplars on the mainland, a large number of them were exported to Japan, and Japan was able to obtain a steady supply of timber and avoid the risk of respiratory diseases for local people.
In Japan, the government has long carried out strict management of fast-growing poplars, and now they are extinct nationwide, and there is no fast-growing poplar left.
What a good calculation!
So why are we introducing fast-growing poplars? It would be nice if we didn't introduce it.
Why was fast-growing poplar introduced from Japan?
In fact, there are more than 100 species of poplar trees in the world, and there are 62 species in the mainland!
The poplars planted at the beginning of the founding of the mainland were basically Chinese tree species, and there was no trouble with poplar catkins, but the forest coverage rate of the mainland at that time was only 8.6%.
In the face of such practical problems, the state has put forward the slogan of "universal forest protection, key afforestation".
However, the growth cycle of tree species in mainland China is long and the cost is large, so it is difficult to achieve this goal in a short period of time.
At that time, the cultivation of fast-growing poplar had been banned in Japan, and in order to maintain the supply of timber in Japan, Japan urgently needed a country that needed this species for planting;
At that time, in order to quickly realize the slogan of "universal forest protection and key afforestation", the mainland also needed tree species with the advantages of fast growth rate and low cost.
It was decided to introduce the species from Japan.
Since then, poplars have been planted on a large scale in projects such as the Three-North Shelterbelt, which has reached an astonishing 100 million mu by 2015.
Although these trees were effective in preventing soil erosion and sandstorm at the time, the problem of poplar catkins gradually became apparent.
Poplar hazards
Don't look at poplar catkins like snowflakes, in fact, it is very harmful!
Populus contains a special substance called pollen protein, which can cause sneezing, runny nose or cough once inhaled.
As I walked on the road, a lump of white flowers floated over and got into my mouth, eyes, nose, etc., and it was very difficult to breathe, how uncomfortable it was.
Some people are allergic to poplar catkins, and their skin will have red rashes if they accidentally touch them, and they can't go out at all in the season when there are poplar catkins.
In particular, people with asthma or respiratory diseases may aggravate or even be life-threatening once they inhale poplar catkins.
In addition, poplar catkins will cause air pollution, often floating in the air, affecting air quality, one or two lumps of poplar catkins are good to say, if the sky is full, interfere with the driver's vision on the road, it is easy to cause traffic accidents.
In addition, poplar catkins are particularly prone to fire!
A cigarette butt can easily ignite it, and the fire spreads very quickly, and by the time you react, you may have already burned a large area.
Some people may find it fun and want to light poplars to play, but this is really dangerous! Some firefighters said that they could receive 50-60 fire alarms caused by poplar catkins in one day.
It can be said that the harm of poplar catkins is very great, but there are pros and cons.
For the poplar floc that is now full of the sky, netizens also discussed.
Netizen comments: You taste, you taste!
Some netizens said that the state should intervene to rectify the poplar in the sky.
"The state should act immediately! This kind of harm is too great! 1 Planting is prohibited from now on! 2. The felling of the felling! 3. Spray the research drug so that it can't produce poplar catkins! ”
"Resolutely eradicate these garbage trees! Also a healthy environment for the people! Government departments must take the lead in removing all these garbage trees that pollute the environment and seriously infringe on people's health, or intervene in it not to produce these flocculents that pollute the environment! It's time for the government to clean up the air and protect the environment! ”
Some netizens also said that the Japanese are really bad.
"The Japanese invented the Japanese poplar, but promoted it to the mainland, why doesn't Japan grow poplars?"
"Japan doesn't grow it itself, it sells it to China, and then comes to China to buy timber, you product, you taste it!"
epilogue
In fact, in addition to the poplar catkins produced by the fast-growing poplars in Japan, some of the poplars flying in the sky today are produced by the local poplars in the mainland.
In the early days of the founding of the People's Republic of China, because of the need to meet the needs of the society for timber, the lack of forest resources, and the improvement of the ecological environment, the mainland planted a large number of fast-growing poplars and planted a lot of poplars.
Nowadays, the harm of poplar catkins is also becoming more and more serious, and it is hoped that the country can improve the problem of poplar catkins.
Reference Sources:
[1] Dawan News, May 13, 2024 "Why is there so much poplar in Hefei this year? Expert interpretation》
[2] China Garden Network, July 3, 2014: "Out of the Misunderstanding of Landscaping"
[3] Shangguan News April 17, 2024: "Spring Drifting "Snow", the troubles of willow catkins are here again! 》
[4] Douyin account: Xinhua News Agency
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