摘要
利用生态地层工作方法分析了湘中晚泥盆世锡矿山阶Yunnanella-Yunnanellina群落的生物组成、分异度、相对丰富度、空间分布及基底物质性质。据一些种群的大小频率直方图和生存曲线讨论了部分生物的生存特征、空间分布及其与环境的关系。文章还对该群落中生物的生态、营养结构及生境特征进行了分析。
Based on the ecostratigraphic method the composition of organisms, the diversity and relative abundance, the properties of the substrata and the distribution of the Yunnanella-Yunnanellina community of Xikuangshan stage, late Devonian in central Hunan are analysed. The life property, the distribution and relationship of some organisms with the environment are discussed according to their size-frequency histograms and survivorship curves. The life habits, trophic structure and environment of this community are also analysed in this paper.
关键词
生态地层
群落
环境
种群
晚泥盆世
ecostratigraphy, community, environment, population, late Devonian, central Hunan
