贵州野生山桐子群落特征研究

采用群落学调查方法对对贵州野生山桐子群落特征进行了分析,结果表明,由于山桐子的生物生态学特性,其在自然群落中的分布不是以群落优势种成分出现,而主要以伴生种出现在针、阔叶混交林和常绿落叶阔叶林中。不同群落类型物种多样性指数变化趋势基本一致,物种多样性指数随着环境因子的变化呈现出一定的变化规律。对山桐子所在群落的优势种多种间关联分析,其群落中的优势种群多种间总体呈正关联。运用模糊综合评判的隶属函数评价森林群落的稳定性,反映出山桐子生存群落在整体上具有一定的稳定性。

Study of Community Characters of Idesia polycarpa in Guizhou Province

The community characters of Idesia polycarpa in Guizhou province were studied by the physiognomy method, the results showed that Idesia polycarpa mainly existed in the mixed forest of evergreen and deciduous broadleaf and conifer as a company species, not dominated species of community due to its biological and ecological feature. The change trend of species diversity index of different communities had the same way, and the species diversity index appeared the common rule as the environmental factors changing. The intra-species correlation of dominant species presented a total positive correlation. The Idesia polycarpa communities showed a certained stability using the fuzzy synthesis function evaluation