上海海岸带及邻近岛屿植物分布特点和环境因子分析

上海海岸带及邻近岛屿发育至今，生物、非生物环境因子起着重要作用。其中，成岛年龄、高程、土壤种类、土壤养分、土壤含盐量、土壤pH值等影响着诸岛植物群落的形成、定居与演替。在多年野外调查基础上，本文以时空跨度，运用PC-ORD生态学多变量分析软件中的典范对应分析（CCA）二维排序方法，阐述了上海海岸带及邻近岛屿植物群落的植物多样性，报导了上海海域诸岛的植物种类，并对该区域多种生境下植物群落的演替现状和所适应的环境因子进行了分析，为研究分析上海海岸带及邻近岛屿植被及其整个生态系统提供了基础资料。

Analysis on Plant Distribution and Environmental Factor of Coastal Zone and Neighbor Islands in Shanghai

During the development of coastal zone and neighbor islands in Shanghai, biotic and abiotic environmental factors are playing important roles. Among them, the age and the height of the islands, soil type, nutrient, salinity and pH of soil influence the formation, colonization and succession of the plant communities. On the basis of field work for several years, applying 2-D ordering of Canonical Correspondence Analysis(CCA) of ecological multivariate analysis, the diversities of plant communities and species of coastal zone and neighbor islands in Shanghai were analyzed. Meanwhile, the situation of plant community succession and the environmental factor of all kinds of habitats were analyzed. All of these investigation results will give basic information for the research on coastal zone and neighbor islands as well as the whole ecological system in Shanghai.