清西陵旅游区油松侧柏人工林物种多样性研究

Research on Species Diversity of Pinus fabulaeformis and Platycladus orienta Man-made Forest in Qingxiling Tourist District

采用物种丰富度、物种多样性指数(simpson指数和Shannon-winner指数)和物种均匀度等几个主要参数,对清西陵旅游区人工油松林和侧柏林的物种多样性进行研究。结果表明:清西陵旅游区物种有42种;物种多样性指数偏低,Simpson指数为2.65,Shannon-winner指数为1.28;Pielou均匀度指数较低,Jsw为0.38,Jsi为0.52。与北京西山的人工林群落进行比较,清西陵的乔木灌木种类较少,而草本植物种类相对比较丰富,群落演替发育不良,应加强油松侧柏人工林的保护,以维持其生物多样性。

Using several main indices such as species richness index, species diversity index （simpson index and shannon-win- ner index） and species evenness, species diversity of pinns fabulaeformis forest and platycladus orienta lis forest in Qingxiling region was studied in this paper. Results show that there are 42 species in Qingxiling tourist district, and the species diversity in this region is low, with simpson index of 2. 65 and shannon-winner index of 1.28. Pielou eveness is relatively lower, with Jsw of 0. 38 and J^i of 0. 52. Compared with artificial forest in Beijing Xishan region, there are less tree species and shrub species, but it＇s rich in herbs species. And community succession is bad. Protection for pinus fabulaeformis and platycladus orienta man-made forest in this the re- gion should be strengthened in order to sustain biodivemity.