湖南阳明山山顶矮林群落结构及其与土壤因子的相关性.

[Objective]To understand the community structure and soil environment status of the mountain top dwarf forest in Yangming Mountain, Hunan. [Method]A field investigation was conducted on the mountaintop dwarf forest in Yangming Mountain, Hunan Province, and the soil of the habitat was measured. [Result]The results showed that a total of 37 families, 51 genera, and 68 species of plants were recorded in the low forest sample plot on the mountaintop of Yangming Mountain. Among them, Rhododendron are the dominant genera in the tree layer and shrub layer. Rhododendron fortunei occupies an absolute dominant position in the number, height and importance value, and showing singledominant community structure. The important values of tree layer, shrub layer and herb layer were significantly correlated with OM and TN(P< 0. 05). [Conclusion]The mountaintop dwarf forest in Yangming Mountain, Hunan Province is a special community variant formed by the longterm development of subtropical evergreen broad-leaved forest in a special mountaintop habitat, with structural characteristics of single superior species communities; Among them, soil factors are of great significance for the development of subtropical mountaintop vegetation. [ABSTRACT FROM AUTHOR]