中国东北蓝藻门伪枝藻属分类及生态分布研究

Classification and Ecological Distribution of Scytonema in Northeast China

研究了东北地区伪枝藻属的分类分布和生态分布,共鉴定出东北地区伪枝藻属植物30种,1个变种,其中包括我国新纪录种3个,新种3个。分析了该属藻类原植体的结构形态,并总结出伪枝藻属单种群落的4种原植体形态以及伪枝藻形成多种类混合型群落的3种主要类型。探讨了伪枝藻组成特征及其与陆地生态系统相关生态因子的联系,编写了东北地区伪枝藻属的分类检索表。

30 species and 1 varieties of genus Scytonema in Northeast China were studiecl, including 3 first recorded species and 3 new species. The ecological distribution of these species had been primarily studied and discussed. From morphological research on thallus,there were 4 kinds of single-species colony types, and 3 kinds of multi-species colony types. The relations between species composition and ecological factors were also analyzed. An index on Scytonema was compiled.