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基于125个样地调查数据对浦江县公益林物种组成进行分析,继而研究公益林群落α多样性和β多样性及其与环境因子间的相关性,研究结果表明:(1)浦江县公益林共有物种266种,其中乔木层104种,马尾松的重要值最大;灌木层132种(其中48种为乔木幼苗),格药柃的重要值最大;草本层78种,里白的重要值最大。(2)浦江县不同森林群落类型的群落物种丰富度在数值上表现为阔叶林群落>针阔混交林群落>毛竹群落>杉木林群落>松林群落>灌木林群落。(3)坡度和海拔因子对浦江县公益林物种多样性分布影响较为显著,随着坡度的增大,群落间的相似性呈先减弱后增强再减弱的趋势;随着海拔的增加,群落间的相似性呈先增大后减小的趋势。
Based on the data of 125 plots, the species composition of public welfare forests in Pujiang County was analyzed. Then the α diversity and β diversity of public forests were studied, and their correlations with environmental factors were studied. The results showed that: (1) 266 kinds of common species, of which 104 species of tree layer, Pinus massoniana important value of the largest; 132 kinds of shrub layer (48 species of tree seedlings), the highest value of the largest drug King; herb layer 78 species, . (2) The species richness of different forest community types in Pujiang County showed numerically the broad-leaved forest community> coniferous-broad-leaved mixed forest community> bamboo community> Chinese fir forest community> pine community> shrub forest community. (3) The effect of slope and altitude on the distribution of species diversity of public welfare forests in Pujiang County is significant. With the increase of slope, the similarity of communities decreases firstly and then increases and then decreases. With the elevation increasing, The similarity increases first and then decreases.