植物多群聚而生,主要原因:一是同一“生境”适于多种植物生存;二是群聚有利于抵抗外界环境突变引起的有害作用。自然界中各植物种多在群聚而形成的“植物社会”中沿续并保存至今。我们把这些植物集团称为植物群落。以木本植物为主体的植物群落叫森林植物群落,或简称森林群落。 The main reasons for the clustering of plants are as follows: First, the same “habitat” is suitable for the survival of many plants; second, the clustering is conducive to resist the harmful effects caused by sudden changes in the external environment. In nature, the species of plant are mostly found in the “plant society” formed by the clustering and are preserved to this day. We refer to these plant groups as plant communities. The plant community dominated by woody plants is called a forest plant community, or forest community for short.