The first forecast of flying catkins came in Beijing this year. Why do you plant so many flying flocs when you hate it?

April 5, 202 1 year? The first catkin forecast was released on 202 1, and the first catkin season appeared on 15. Dwarf trees are dioecious and catkins grow on willows. In spring, the female inflorescence forms a small capsule after pollination, which gradually cracks after maturity. White fluff flies with seeds, which are scattered by the wind? Liu Xu? . Catkin may cause skin irritation and itching. On April 5th, Beijing Municipal Bureau of Landscaping and Greening and Beijing Meteorological Bureau jointly released the first catkin weather forecast 202 1 in Beijing. Experts predict that the first catkin peak this year will appear from April 10 to April 15, mainly affecting the urban areas within the Fifth Ring Road. The main species of catkin is poplar. The second peak period in urban and plain areas is from late April to early May. The tidbits mainly include European and American poplars, poplars, weeping willows and dried willows. The third peak appeared in mid-May, and the main area was mountainous area, which had no obvious impact on the urban area.

Poplar and willow are unique tree species in Beijing. It has a long planting history in northern China. Since Liao Dynasty and Jin Dynasty, it has been widely used for landscaping and shading trees, and has made great contributions to the ecological construction of Beijing. Poplar is a symbolic plant species and the tallest tree species in Beijing, which supports Beijing's green? Skyline? . Willow is one of the earliest sprouting and least defoliation trees in Beijing. Elegant and elegant, with old Beijing stories and homesickness.

Through the consultation of monitoring, landscape and meteorological experts, the beginning of catkin forecast was determined. According to the weather forecast, from April 5 to 8, the central and southern urban areas will enter the catkin period. Subsequently, catkins will appear in the northeast of the city on April 7, bbb0 and 10, and in the northwest of the city on April 8, bbb 1 and1. Faced with the troubles caused by catkins to some citizens' lives, experts gave some protection suggestions. Personal protection when going out, disposable dust masks, sunglasses, protective glasses and gauze can effectively shield catkins. Outdoor activities such as outdoor sports, try to choose in the morning, evening or after rain, such as catkin lighters. At home, you need to pay attention to closing the screen window to avoid flying into the room.

Special reminder to the general public, pay attention to fire safety, do not throw cigarette butts, do not light catkins with open flames, fire safety is everyone's responsibility. The Beijing Municipal Bureau of Landscaping and Greening has made special arrangements for willow flowering. This year, we will continue to strengthen observation and forecast, and supervise all levels and forest landscaping departments to deal with the problem of willow flowering in combination with long-term supervision and first aid. At present, the Beijing Municipal Bureau of Landscaping and Greening 100 willow observation point, on the basis of organizing patrol by groups, requires the whole city to find out? Inform relevant departments to deal with problems at the scene at the first time, ensure that problems are found in time and reduce? The influence of citizens' life and urban management.