浙江金华市区地面苔藓植物分布与环境因子关系研究

金华市区地面苔藓植物共计有26科、68属、132种。计测了30个样点中主要苔藓植物的盖度和7种环境指标，应用典范对应分析(ccA)对所获得的数据进行了分析，作出了反映苔藓植物分布与环境关系的双向排序图，并讨论了主要的地面苔藓植物的生态分布特点。依据环境因子与前两个排序轴的相关系数大小，发现影响本地区地面生苔藓植物分布的主要环境因子分别为林冠层郁闭度、土壤水分、交通频度、草本层盖度、土层厚度和土层松散程度。

A Study of the Relationships between Terrestrial Bryophytes and Their Environmental Factors in Jinhua City, Zhejiang

There are 132 terrestrial bryophyte species (including six varieties) in Jinhua City, Zhejiang Province, which belonging to 26 families, 68 genera. The coverages of the main terrestrial bryophyte species, together with the seven environmental variables in 30 sites were investigated. The data were analyzed by the method of Canonical Correspondence Analysis (CCA). The relationships between the bryophytes species and the environmental variables were revealed in the biplots of CCA, the ecological characteristics of the main species were also discussed. According to the correlation coefficients of the environmental variables with the first two axes, the environmental variables that influenced the distribution of the main species were canopy density, soil water content, traffic frequency, herb coverage, soil layer depth and soil loose grade.