油松毛虫越冬幼虫种群资料代换方法的研究

Study on population data transformation of overwintering larva of Dendrolimus tabulaeformis

在种群空间格局研究的基础上,对油松毛虫越冬幼虫种群的资料代换方法进行了研究。结果表明,在所采用的7种代换方法中,越冬幼虫种群可用的代换方法较多,但以Taylor的方法和反正弦代换效果最佳,其代换公式分别为x'=x-0.08235和x'=ln(x+(x2+1)～(1/2))。

Based on the study of population spatial pattern, we investigated the method of population data transformation of overwin- tering larva of Dendrolimus tabulaeformis. The results indicated that several methods could be used for data Wansformation. Among the seven kinds of data transformation, Taylor model and inverse sine conversion shown better results and the formulae were x1=x-0.08235 and x1=（x＋√x2＋1）. respectively.