绿色奥运为北京城市园林建设提供了前所未有的契机,城市的绿化事业得到了长足发展。但是北京地处华北暖温带地区,其寒冷的冬季限制了常绿阔叶植物的正常生长,冬季城市绿地中大面积的色彩主要靠针叶树种来体现,造成隆冬季节植物景观单调,缺乏绿意盎然的生机和活力。随着全球气候变暖和“暖周期”到来,适当将亚热带北缘或其他地区的阔叶常绿植物引种驯化,克服低温寒害,并将引种成功的物科咖以推广,将会极大丰富城市冬季季相和促进景观的改善,也将 Green Olympics has provided an unprecedented opportunity for the construction of Beijing’s urban gardens, and the city’s afforestation project has made great strides. However, Beijing is located in the warm temperate region of North China. Its cold winter limits the normal growth of evergreen broad-leaved plants. The large area of ​​urban greenland in winter mainly reflects coniferous species, resulting in monotonous plant landscape in winter and lack of greenness The vitality and vitality. With the global warming and the “warm cycle” coming, it is appropriate to introduce and acclimate the evergreen broad-leaved evergreen plants in the northern subtropical or other regions to overcome the cold and cold damage and promote the introduction of successful scientific coffeehouses, which will greatly enrich the cities Winter season and to promote the improvement of landscape, will also