关于植物种群空间格局研究方法的比较

Comparison between Research Methods of the Spatial Pattern of Plant Population

为了揭示森林群落的空间结构规律,需要选择合理的种群结构研究方法。通过对Morisita I分布指数分析法和O-ring点格局分析法这2种典型的空间格局分析方法的比较,结果表明:这2种分析方法各具优势,Morisita I分布指数分析法具有计算和操作均比较方便的优点;O-ring点格局分析法能够分析各种尺度下的种群格局和种间关系,所描述的结果更符合实际,这种方法有利于定点监测研究。对于检验所得结果,两种方法基本一致。但是对于某些单一种群或在不同尺度上,格局分布不显著的种群,两种方法检验结果可能会有一定的差异。在选取格局分析方法时,要根据研究的对象和目的选择最适合的研究方法。

In order to reveal the spatial structure of forest community,reasonable research methods of plant popula-tion need to be chosen.Analysis method of Morisita I distribution-index-analysis method and O-ring point-pattern method were compared.Result shows that both methods have their own superiority.Morisita I distribution-index-a-nalysis method have advantages on calculate and operate.O-ring point-pattern analysis method can analyze popula-tion patterns and interspecific relationship under various scales,and the results which was described is more realis-tic,this method is conducive to sentinel surveillance.For the result through inspect,two methods are basically the same.For some single species or the population whose distribution are not significant or on different scales,inspec-tion results with two methods may have some differences.The most appropriate research methods should be chosen according to the obj ect and purpose of the study in selecting pattern analysis method.