浙江箬寮山百日青的群落生态学特征分析

通过样方调查，应用物种辛富度，物种多样性指数和物种均匀度等数据对分布在浙江松阳箬寮山地百日青（Podocorpus neriifolius）分布区物种多样性进行了研究。结果表明，箬寮山地植物种类丰富，共有维管束植物52科95属148种。科属组成多样，区系成分复杂，热带分布有49属，占总属数的52．12％，多于温带性质的属。木本植物的物种丰富度和物种多样性指数明显大于草本植物，乔木层植物Simpson指数、Shannon—Wiener指数和Pielou均匀度指数分别为6．7751、3．1593和0．6418；灌木层的分别为11．6826、3．8044和0．6781；草本层的分别为4．5537、1．7418和0．5378。灌木层-乔木层-草本层的物种多样性依次递减。根据分布生境、群落结构和种类组成，可将该山地百日青分布的群落分为三个类型，即甜槠木荷林、木荷红楠林和猴头杜鹃林。

Synecological Features of Podocarpus neriifolius at Ruoliao Mountain, Zhejiang Provcince

Floristic composition, areal types of genera, species diversity and main forest types as well as plant forms were investigated in community with rare species Podocarpus neriifolius distributed at Ruoliao Mountain in south-west Zhejiang Province. In the areas studied there were 148 species of vascular plants belonging to 52families and 95 genera, of which 49 genera were of tropical distribution. The species richness and species diversity of woody plants were obviously higher than those of herbs. Simpson index, Shannon-Wiener index and Pielou's eveness index of tree, shrub and herbaceous layers were determined. Species diversity was in descending order in shrub layer, tree layer, and herbaceous layer. According to the habitats, community structure and speciescomposition, the communities with Podocarpus neriifolius can be recognized as three forest types: Castanopsis eyreis - Schima superba forest, Schima superba - Machilus thunbergii forest and Rhododendron simiarum forest.