山东枣庄市青檀寺野生青檀群落组成与结构特征

Composition and structure characteristics of Pteroceltis tatarinowii community in Qingtan Temple of Zaozhuang City

山东枣庄市青檀寺野生青檀群落内共有维管植物73种,隶属于45科69属,Raunkiaer频度分析表明,常见种多度明显高于其他物种,群落物种分布较均匀。区系组成以温带成分占优势,但热带成分所占比例高达43.14%且在群落组成中明显比温带成分重要。植物生活型谱中,高位芽植物最多,地面芽和1年生植物次之,地上芽和地下芽植物最少。乔木层主要树种为青檀、圆柏、君迁子等,重要值分别为14.98%、2.48%、2.39%,灌木层中柘树、兴安胡枝子、荆条、扁担杆子等占优势,草本层以荩草为主,层间植物较少。

There are 73 species of plants, belonging to 69 genera of 45 families in Pteroceltis tatarinowii community in Qingtan Temple of Zaozhuang. Raunkiaer frequency law analysis shows that common species have obvious advantages in abundance, with fewer rare species and more evenly distributed species. Areal-type analysis of genera suggests that the temperate types is predominating, accounting for 50.98 %, while the tropical types account for 43.14 % which are more important than temperate types in community composition. Life-form spectrum shows that the phanerophytes plants are the most, followed by Hemicryptophytes, Therophytes, Geophytes, and Geophytes. The dominant species in tree layer are Pteroceltis tatarinowii, Sabina chinensis, and Diospyros lotus, with the important value 14. 98 0~ , 2. 48 %, and 2. 3 9 % respectively; the dominant ones in shrub layer are Cudrania tricuspidata, Lespedeza daurica , Vitex negundo var. heteroph ylla , and Grewia biloba ~ and the species of herbaceous layer are rich with dominated Arthraxon hispidus and few species of the inter-layer.