The origin of Populus pekinensis
According to relevant information, we can know that the flying catkins in Beijing mainly come from poplar and willow, among which poplar is the most troublesome!
Poplar is different in gender, and its flying floc mainly comes from female plants. According to statistics, almost every female plant produces 300,000 to150,000 catkins every year, with an average weight of one kilogram! It can be seen that the harm caused by it!
So, how did these flying catkins appear? As long as the highest temperature exceeds 25 degrees Celsius for three consecutive days every year, and then the air here is dry, these willow catkins will start flying around, causing some troubles for everyone!
Why do you plant so many poplars in Beijing?
According to the statistics of poplar population in Beijing in, there were as many as 284,000 trees. Some people will wonder, if you know that these trees will have such an impact, why plant so many trees?
In fact, 40 years ago, the greening in Beijing was not so good. Of course, there is nothing wrong with birds, but there is something wrong with flying sand. It is also to solve the problem of flying sand that so many poplars have been planted, which is why it has become the present situation. In this season, there will be sheep flying all over the sky
Why did you choose poplar? Mainly because poplar is drought-tolerant, adaptable and easy to survive, so choose poplar!
Can it be cured?
In fact, Beijing is not without efforts to solve this problem. In the 1990s, Beijing began to control catkins. The main methods are species source control, cultivating new excellent tree species, thinning and pruning, high grafting, thinning female flowers and inhibiting inflorescence formation.
But unfortunately, this kind of poplar can't be cured at all, unless all these trees are cut down, but this is not allowed, because if all these trees are cut down, the urban environmental quality and landscape here and here in Beijing will decline, causing more serious ecological losses.
Therefore, we still have to endure. We should go out as little as possible in this weather in the future. Remember to wear a mask when you go out, and close the window after ventilation at home!