摘要
在对南澳岛主要森林群落和植物多样性调查的基础上,选择了8个台湾相思林不同生境梯度种群的资源位,对其生态位宽度和重叠进行研究。结果表明,台湾相思林种群各种的生态位宽度差别明显,重要值大的种生态位宽度基本较大,而高生态位宽度值的种对重叠值也偏高;台湾相思与生态位宽的树种马尾松、鸭脚木、中华楠、潺槁树的重叠机会较大,对生境有一定相似的要求,易形成混交林。其结果对南澳的台湾相思林分及水源涵养林的生态学研究和生产实践有指导意义。
According to the investigation data of major forest group and plant multiplicity in Nan＇ao Island, we selected eight resources positions of different habitat gradient population for studying niche breadth and overlap of major population of Acacia confusa forest. The results showed that the difference of niche breadth among populations was obvious. The niche breadth of the populations with big important value was much greater and the niche overlap of the species with broad niche breadth was much higher. The overlap probability among Acacia confusa and the species with broad niche breadth was much greater, such as Pinus massoniana, Scheffiera octophylla, Phoebe bournei and Litsea glutinosa. They had the certainly similar request to the habitat and formed the mixed forest easily. The results had instruction significance to ecology research and production practice of Acacia confusa forest and water conservation forest in Nan＇ao.
