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采用典型抽样方法,对佳木斯市4个具有代表性居住区园林绿化植物群落结构和生物多样性进行研究。结果表明:(1)4个居住区共有种子植物51科116属165种;(2)从4个居住区植物群落的不同层次来看,乔木层、灌木层的均匀度指数、多样性指数均>草本层,反映了前两层物种分布较均匀、组成结构相对复杂;而乔木层、灌木层的丰富度指数均小于草本层,主要是因多数居住区野生草本植物种类较多;(3)总体上,居住区绿化植物以本地乡土种类应用为主,以外地引进新种类、新品种推广应用为辅。
A typical sampling method was used to study the plant community structure and biodiversity of four representative residential areas in Jiamusi City. The results showed that: (1) There were 51 families, 116 genera and 165 species of seed plants in 4 residential areas; (2) From the different levels of plant community in 4 residential areas, the evenness index and diversity index of arborous layer and shrub layer > Herb layer, reflecting the first two layers of species are more evenly distributed, the composition of the structure is relatively complex; while the richness index of arbor layer and shrub layer are less than the herb layer, mainly due to the more species of wild herbs in most residential areas; (3) In general, greenery in residential areas mainly uses local native species, introduces new species in other places, and supplements and popularizes new varieties.