崂山三桠乌药群落组成和结构分析

Analysis on Community Composition and Structure of Lindera obtusiloba in Laoshan

对山东崂山三桠乌药群落结构进行研究,以揭示其生态学特征。采用样地调查和群落学统计方法。崂山三桠乌药群落共有木本植物31科54属88种;群落中物种Raunkiaer频率等级分布为A>B>C>D=E;重要值位于前7位的树种有三桠乌药、赤松、小米空木、日本落叶松、盐肤木、日本花柏、胡枝子其重要值分别为8.82%、8.53%、8.19%、6.31%、5.96%、5.44%、5.37%;群落建群种为赤松,日本落叶松为第二建群种。崂山三桠乌药群落物种组成较为丰富,常见种的多度优势明显,物种分布较为均匀,群落垂直结构明显。

The aim was to study the community structure and reveal the ecological characteristic of Lindera obtusiloba in Laoshan. The methods of plot-investigation and phytocoenology were used in this study. There were 88 species, belonging to 54 genera and 31 families in this community. The distribution of Raunkiaer frequency was A〉B〉C〉D=E; The top 7 species were Lindera obtusiloba, Pinus densitlora, Stepbanandra incise, Larix gmelinii, Rhus chinensis, Chamaecyparis pisifera and Lespedeza bicolor, with importance value 8.82%, 8.53%, 7.13%, 6.31%, 5.96%, 5.44% and 5.37%. The constructive and second constructive species were Pinus densiIlora and Larix kaempferi. The species composition of Lindera obtusiloba was rich, advantage of common species was obvious, distribution of species was even and vertical structure was clear.