鼎湖山植物群落多样性的研究

根据鼎湖山自然保护区１６个植物群落的样地调查资料，从种丰富度和不同类型的物种多样性指数、均匀度与植被类型、人为干扰程度、演替阶段等方面的关系进行了分析。本区植被类型的多样性指数、均匀率指数变化反映了其结构复杂程度、生境的差异。物种丰富和多样性随着人为干扰程度的增强而降低。群落内各层的物种丰富度的大小的顺序为“灌木层＞草本层＞乔木层”，而群落多样性指数的大小顺序为“灌木层＞乔木层＞草本层”。群落多样

Plant community diversity in Dinghushan Nature Reserve

The species richness, evenness and species diversity of plant communities in Dinghushan Nature Reserve were investigated. The species richness index, species diversity index and the evenness index were compared for different vegetation types. The indices increased with the plant community succession, but the indices of mature forest were not the highest. Generally, the species richness order was that the shrub layer>herb layer>tree layer, the diversity index order is that the shrub layer>tree layer>herb lay...