崂山刺楸群落组成和结构特征分析

运用植物群落学研究方法,对崂山刺楸群落的物种组成及结构进行了分析。结果表明:刺楸群落共有木本植物83种,隶属于39科63属。种-多度格局及Raunkiaer频度定律分析均表明,群落中常见种多度优势明显,散生种较多。刺楸群落垂直结构清晰,可分为乔木层、灌木层、草本层及层间。乔木层主要物种为刺楸、赤松、落叶松、黑松、辽东桤木、栓皮栎,其重要值依次为34.43%、21.21%、19.26%、17.58%、12.02%、9.60%;灌木层主要物种为胡枝子、小米空木、郁李、牛叠肚、三桠乌药、白檀,其重要值依次为10.27%、6.72%、3.95%、3.49%、2.60%、2.48%。

Analysis on Community Composition and Structure Characteristics of Kalopanax septemlobus in Laoshan Mountain

The species composition and structure characteristics of Kalopanax septemlobus community in Laoshan Mountain were analyzed using phytocoenology method. The results showed that there were 83 species of woody plants, belonging to 63 genera of 39 families. The results of species - abundance pattern and Raun- kiaer frequency law both showed that the common species had obvious abundance advantage and there were a lot of scattered species in community. The vertical structure of Kalopanax septemlobus community was clear, which could be divided into tree layer, shrub layer, herb layer and interlayer. The dominant species in tree layer were Kalopanax septemlobus, Pinus densiflora, Larix gmelinii, Pinus thunbergii, Alnus sibirica and Quer- ct~s variabilis with the important value as 34.43% , 21.21% , 19.26% , 17.58% , 12.02% and 9.60% re- spectively. The dominant species in shrub layer were Lespedeza bicolor, Stephanandra incisa, Prunus japonica, Rubus crataegifolius, Lindera obtusiloba and Symplocos paniculata with the important value as 10. 27%, 6.72%, 3.95%, 3.49%, 2.60% and 2.48% respectively.