岭南林场次生林林分演替趋势的初步研究

Thestudy on the Seccusinasl Tendeny of the Secondary Forestry in LinNan

对由马尾松演替成的次生林的种类组成、物种多样性和物种重要值进行调查分析,初步探讨此群落乔木树种的演替趋势,该林分群落多样性Simpon指数和Shannon——Wiener指数分别达0.8935和2.5036,显示该群落是相对稳定性较大的群落。群落物种多样性丰富;群落重要值分析表明马尾松和青冈是该群落的主要优势种。群落演替趋势说明,种质资源和土壤条件是影响该林分演替趋向的主要因素。

Though investigating the secondary forest of Pinus Massamiana and Cyclobalanopsis glauan ,this article analysed the community species diversity approach important value to preliminarily approach the successional tendency of arbor species of Pinus Massamiana and Cyclobalanopsis glauan community. The simpon index and Shannon-Wiener index of the community species diversity of Pinus Massamiana and Cyclobalanopsis Glauan forest were 0.8935 and 2.5036,respectivety,which indicated that the relative stability of the present community was diversity of community was rich.The analysis of the community important value showed that Pinus Massamiana and Cyclobalanopsis Glauan was the main dominant species in the community.The community successional tendency revealed that seed source soil condition are the main factor for infuence this community succession tend to.