山西五鹿山森林群落分类及物种多样性研究

Study on Forest Community Classification and Diversity in Mt.Wulushan

采用样方法对山西五鹿山自然保护区森林群落进行调查,设置60个样地256个森林样方,运用TWINSPAN双向指示种分析法对该区森林群落进行分类,并采用patrick指数、Shannon-Wiener指数和Pielou指数对五鹿山森林群落的物种多样性进行分析.结果表明:TWINSPAN将保护区的森林群落划分为华北落叶松林、油松林、白皮松林、辽东栎林等15个群落类型.不同群落类型的物种多样性指数值D、H'和J在描述群落性质时不具有严格的一致性,但都较好地反映了不同植物群落类型在物种组成方面的差异.同时,分析群落多样性与植物生长型的关系得出,森林群落的丰富度指数和多样性指数均表现为草本层>灌木层>乔木层.

The forest community in Mt. Wulushan was investigated by sampling method based on the data, Obtained from 60 plots 256 samples, the community formation was classified into associations by Two-way Indicator Species Analysis （TWINSPAN）, and the species diversity （ Simpson index; Shannon-Wiener index and Pielou index） was measured in forest community in Mt Wulus- han. The results are as follow：the forest communities were classified into 15 groups by TWINSPAN, different community can be structurally divided into shrub layer, herb layer and ground layer, and the indices of D,H＇ and J demonstrated higher consistency. At the same time, The study detected that the community diversity and plant growth form ralated as follows ： herb layer 〉 shrub layer 〉 tree layer.