摘要
根据样方调查,对分布在黔中地区修文县六桶乡的篦子三尖杉群落的种类组成、外貌、结构特征和物种多样性进行分析。结果表明,在800m2的样地中,有维管植物92种,隶属52科79属。群落中乔木的个体数量很少,主要由灌木和草本组成,灌木层主要优势种为篦子三尖杉、火棘等。群落外貌常绿,结构简单。整个群落的物种丰富度Gleason指数为14,Shan-non-Wiener指数为0.24,Simposon为7.07,均匀度指数为1.59。群落各层次的丰富度格局表现为草本层>灌木层>藤本植物>乔木层,多样性格局为草木层>灌木层>乔木层>藤本植物,均匀度格局为草木层>灌木层>乔木层>藤本植物。
The characteristics and species diversity of the Cephalotaxus oliveri community in Xiuwen were studied based on community investigation. The result showed that 92 species of vascular plants in 79 genera and 52 families were found in 7 plots of 800m. The shrub layer and the herb layer are the main compositions of the community, and C. oliveri, Schefflera arboricota, Jasminum elongatum are the main dominant species in the shrub layer. The physi- ognomy of the community was evergreen, The species diversity of the community is relatively poor with the Gleason index of 14, the Shannon - wiener index of 0.24, the Simponindex of 7.07 and the evenness index of 1.59. The species rishness pattern of every layers of the community is shrub layer 〉 herb layer 〉 tree layer 〉 liana layer, the species diversity patteyn is shrub layer 〉 tree layer 〉 herb layer 〉 liana layer, and evenness pattern is tree layer 〉 liana layer 〉 shrub layer 〉 herb layer.
出处
《贵州科学》
2011年第2期56-59,64,共5页
Guizhou Science
基金
贵阳市林木种质资源调查研究资助项目
关键词
修文
石灰岩
灌丛
群落特征
物种多样性
Xiuwen, limestone, shrubland, community characteristics, species diversity
作者简介
陈名慧（1960一），女，高级讲师、主要从事植物学教学和植物资源研究工作。
