Populus tomentosa is a typical northern greening tree species, which has the advantages of cold tolerance, drought tolerance and fast growth. For new roads, urban greening seems to be a good choice. Of course, Populus tomentosa also has its own way of reproduction, especially by releasing seeds with the help of wind. This is flying catkin. My computer case also suffered greatly. Fortunately, Populus tomentosa is dioecious, and male plants will not bring such troubles to people. So 10 years ago, there was the "Jin Yang Million Heroes" project. Only today, the annoying catkins have not completely disappeared. Http://202.84.17.73/st/htm/20010205/343860.htm Almost all urban greening trees in China at the end of the 20th century are fast-growing trees, mainly poplar and paulownia in the north and eucalyptus and birch in the south. Later, it caused many problems. These fast-growing trees grow for twenty or thirty years, and the xylem will rot due to diseases and insect pests, resulting in hollow trees. In addition, their branches are easily blown off by strong winds and hurt people every year. Originally planted for beauty, it turned out to be a roadside time bomb. In recent years, people pay more and more attention to the choice of greening tree species. Such as ginkgo, Platanus acerifolia, Luan tree, Metasequoia, etc. There are camphor trees in the south. Of course, the growth of these figures is relatively slow, which requires us to have a long-term plan for urban construction, not just constantly changing roads. It takes a long time to slowly add pure green to the road.

Seek adoption