摘要
选择上海环城绿带的典型群落进行调查,分析了环城绿带复层植物种类与群落组成,探讨了群落区系特征。结果表明:外环绿带植物种类丰富,调查的植物群落共有维管束植物53科83属97种,其中裸子植物4科4属4种,被子植物49科79属93种。整个绿带呈现草本层和灌木层物种丰富度高、乔木优势度大的多样性格局,不仅增加了群落稳定性及物种多样性,更提高了生态景观效果。绿带普遍采用乔-灌-草自然混交林式与模纹式相结合的配置结构,不仅丰富了生态景观,也提高了群落稳定性,降低了养护成本。
Abstract
The greenbelt of typical communities in Shanghai outer ring were investigated .The greenbelt complex layer plant type and community composition were analyzed.Floristic characteristics of community were discussed.Results indicated that the outer ring greenbelt plant species were abundant, and the investigated plant community had a total of 97 species, 83 genera and 53 families of vascular plants.Among them, there were 4 species, 4 genera and 4 families of gymnosperm, and 93 species, 79 genera and 49 families of angiosperm.The green belt presented di-versity pattern with abundant species of herbaceous layer and shrub layer , and dominant arbor.These not only increased the community stability and species diversity, but also improved the ecological landscape efficiency.Greenbelt widely adopted the configuration structure of the combina-tion of arbor-shrub-herb natural mixed forest type and pattern type, which enriched the ecological landscape, enhanced the community stability, and reduced the maintenance costs.