Wu Tong catkin joke

Catkin is so annoying, why do we plant so many willows? In addition to the greening function, willow has a very rich cultural connotation in the hearts of China people. The willow culture that contemporary people are most familiar with is inserting willow. Willow has the function of ward off evil spirits in people's minds. Influenced by Taoism and Buddhism, people think that willow can exorcise ghosts, which is called "fear of ghost wood". Taiyi in Taoism saves the suffering Buddha, and avalokitesvara in Buddhism helps all beings with willow branches dipped in water. On this day, Taoist priests will also cut off the southeast branches of willow trees to sacrifice the habit of refining willow hairpin.

Coordinate Beijing, it's the season in Beijing again, and Yang and Liu are all over the sky again. Although I'm not allergic, I hate this kind of thing. It's pervasive. Mao Mao flies in cars, houses, corridors and even elevators. And it's sticky everywhere, on clothes and shoes, and sometimes it runs into the nostrils as soon as you inhale. Although many allergic people and non-allergic people hate this stuff, they even want to know why this catkin is so annoying and why so many are planted. First of all, every animal and plant has the right to grow and reproduce. We can't plant less or not just because humans don't like it. Secondly, wood is good, and many building furniture will be used. Also, when we enjoyed the beautiful scenery of weeping willows by the river, we didn't find them annoying. Populus tomentosa also protects the environment, shields the wind and sand, and provides us with wood when it falls. So they have been flying for so many days, so bear with it. This is how they breed. For this catkin, allergic and non-allergic people are very helpless.

Allergic people will be armed this season. This kind of flying catkins is very annoying. Even if it is not allergic, it is easy to enter the eyes and nose and fly around. Even sanitation workers are worried about the "white hair" on the ground. But in recent years, it is said that it is being rectified, and some will implement drug injection, but this is costly, and some will choose other tree species to replace it. However, the process of rectification is long, and it should be replaced step by step every year. It is neither reasonable nor legal to cut down trees on a large scale, and it will take about ten or twenty years to gradually replace tree species.

Beijing's first catkin forecast this year is coming! Why do you fly so much in April? How to protect? On April 5th, Beijing released the first catkin forecast of 202 1, and the first high incidence period appeared in 10- 15. Why do you fly in spring? Willow is a dioecious plant, and the flying catkins come from the female plant of willow. In spring, after pollination, the female inflorescence generates a small capsule, which gradually cracks when it matures, and the white fluffy portable seeds fly with the wind to spread the seeds and form catkins. Flocculation may cause skin allergy, itching, etc. How to protect? Poke the video to understand.

In the season when the grass grows and the warbler flies and everything recovers, it is not plants that worry people, but insects. I went to the mountain to sweep the grave the other day and was bitten by some flower mosquitoes. I don't need to do anything when I come back. Now three days later, the wound is still red, swollen and itchy, which shows that these mosquitoes are very toxic. Knowing that you are allergic, you should take good care of yourself when you travel next time. For other allergic friends, in order to avoid skin pain, you can check the source of allergies, so as to find out what to do.

The flying catkins are annoying. Why do you plant so many poplars? Now in April, it is the time when poplars are flying, which also brings troubles to many allergic people. Flocculation is not only easy to cause allergies, but also easy to cause respiratory diseases.

Then, why are there so many poplars planted on our streets?

The main reason is low cost, because poplar is a fast-growing tree species, which generally matures in ten to twenty years, with low cost and easier management. In the growing period, it can grow well without much care and management, and it can grow well in about three to five years, so it is planted in a large area and is known as Yang Jiajiang in the north.

As early as 20 15, China was the country that planted the most poplars.

I believe that because flying flocks disturb people, other tree species may be chosen for greening in the future.

Many people don't understand. Since catkins are hot and annoying in spring, causing public allergies and easily causing fires, why not plant fewer catkins in cities? Especially in the north, the streets are full of poplars and willows. It would be nice to plant buttonwood in the south. The staff of Beijing Bureau of Landscaping and Greening answered this question. Since the 1950s, willows have been planted in large areas in cities, mainly because of their strong vitality and fast growth, so they have many benefits for urban greening. In addition, willow has a remarkable ability to resist air pollution. Considering their advantages, the disadvantages of flying flocs are relatively unimportant. At first, when there was no floe disaster, growers would not distinguish between male plants and female plants. Later, people realized this problem and advocated the use of male plants without flying flocs in landscaping and municipal engineering. However, it is not easy to distinguish male plants from female plants in non-flying season, which leads to the possibility of planting female plants as male plants in the construction process.