【摘要】 以浙江天台山特有种华顶杜鹃为研究对象 ,分析了它所在群落的结构、物种组成及数量特征 .在该群落中 ,华顶杜鹃不占优势 ,优势种群为阔叶箬竹、黄山松、山和金钱松等 ,它们的年龄结构都属于稳定型或增长型 .群落垂直结构完整 ,可分为乔木层、灌木层、草本层 ,亦有一定数量的层间植物 .乔木层的物种多样性偏低 ,灌木层和草本层的物种多样性较高 .各样地间的植物种类相似性较高 .华顶杜鹃处于濒危状态 ,必须采取措施加以保护 .更多还原

【Abstract】 Rhododendron huadingense, a waiting to exploit fine ornamental shrub, has important value in the study of the phylogeny of sectional brachycalyx of Rhododendron subgenus tsutsusi. This paper analyzes the community structure, species composition and quantity feature of the Rhododendron huadingense forest distributed in the Tiantaishan Mountains in Zhejiang Province. The main points are briefly summarized as follows: (1) The Rhododendron huadingense population has no dominance in the communities of the three researched plots. The dominant populations are Indocalamus latifllius, Pinus taiwanensis, Lindera reflexa and Pseudolarix amabilis, etc., which have stable or increasing types of age structures. (2) The vertical structures of the communities in the three spots are integral, which can be divided into tree layer, shrub layer and herb-layer as well as some interstuatum plants. (3) The species diversity index of the tree layer is very lower, but for shrub layer and herb layer it is higher. (4) The plant species of these three plots are very similar. (5) Rhododendron huadingense is on the verge of extinction.更多还原