北京市在实施生态环境建设中把首都生态环境建设作为城市总体建设的重要组成部分，并在中心区和边缘集团之间以及各边缘集团之间用成片的大绿带进行隔离。　　林木养护和后期管理工作，十分重要和相当艰巨。为了促进隔离地区新植林木茁壮的生长，使观赏树种花繁叶茂、经济林木 Beijing implemented the construction of the ecological environment in the capital as an important part of the overall urban construction in the implementation of the ecological environment construction and was segregated with a large green belt between the central area and the fringe groups and between the fringe groups. Forest conservation and post-management work are very important and quite arduous. In order to promote the robust growth of newly planted trees in the area of ​​isolation and to make ornamental tree species rich and thriving,