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根据蓥华山通溪河林区植物群落调查数据,对该区植物群落结构和物种多样性特征进行了研究,测定了各层次植物物种的重要值,并采用多种方法计算各层次物种的丰富度指数、均匀度指数和多样性指数.结果表明:①群落中共有植物165种,分别隶属于79科、135属.②群落的生活型高位芽植物最多,地面芽植物次之.该群落叶的性质以小型叶、单叶、草质、非全缘为主.③在各次生林类型中,物种丰富度从大到小依次为草本层、灌木层、乔木层,除人工恢复失败的杂灌林,其多样性和均匀度指数与丰富度指数趋势一致.其中人工次生林的丰富度和多样性均为最低.在原始林中,物种丰富度、多样性和均匀度指数从大到小依次为灌木层、草本层、乔木层.
Based on the survey data of plant communities in Tongxi River forest area of Huashan Mountain, the characteristics of plant community structure and species diversity in this area were studied. The important values of plant species at different levels were determined and the abundances of species at different levels were calculated by various methods Index, evenness index and diversity index.The results showed that: (1) There were 165 plant species in the community, belonging to 79 families and 135 genera respectively.②The population of life-type high-level bud plants was the second, followed by the ground bud plants The characteristics are small-leaf, single-leaf, grass and non-holistic.③In each type of forest, the order of species richness is herb layer, shrub layer and arbor layer, except that the artificial restoration failed , And its diversity and evenness index are consistent with the trend of richness index.The artificial secondary forest is the lowest in both richness and diversity.Among the virgin forest, the order of species richness, diversity and evenness are shrubs Layer, herb layer, tree layer.