乔灌木都是直立性的木本植物，在园林绿地中所占比重较大，是园林植物种植中最基本和最重要的组成部分，是园林绿化的骨架。乔木树冠高大，寿命较长，树冠占据空间大，而树干占据的空间小，因此不大妨碍游人在树下活动，乔木的形体、姿态富有变化，枝叶的分布比较空透，在改善小气候和环境卫生方面有显著作用，特别是有很好的遮荫效果。
樟属，樟科，多为常绿乔灌木，叶子和树皮含芳香油。
Evergreen trees and shrubs with aromatic oils in their leaves and bark.
结果表明，随着演替的进行，群落的乔灌木树种数先升高后降低，趋于稳定。
The results show that with succession proceeding, the number of trees and shrubs increased at first, then decreased and trend to stable at last.
岸边一般种植各类耐水湿乔灌木作为背景植物，这样形成了层次丰富的岸边景观。
Shore of the general cultivation of various types of water wetland plant shrubs as a background, so that the level of the formation of a rich landscape of the shore.
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