昆虫种群空间格局研究中的几个检验问题

Some Test Problems in the Study of Spatial Distribution of Insects Populations

本文以油松毛虫卵（块）种群空间格局研究为例，讨论了频次分布拟合Ｘ２检验法存在的测定上的不敏感性问题；讨论了扩散型指数法中扩散系数Ｃ的置信区间检验法、Ｉδ指数的Ｆ检验法、丛生指标Ｉ的Ｗ检验法和离差指数ＩＤ的Ｘ２检验法对低密度种群测定上的敏感性差异问题，并按相同信度条件下测定敏感性大小进行排序。此外。

Taking the study of spatial distribution of the eggs of Dendrolimus tabulaeformis as an example,this paper discussed the problems of determination unsusceptibility existed in X 2 -test of fit frequency distribution,and susceptibility differences in the determination of the low density populations existed in following tests:confidence interval test of diffusion coefficient C in the method of diffusion index; F -test of I δ index; W -test of clumping index I;X 2 test of dispersion index I D. An order was given according to their susceptibilities determined under the same degree of confidence. Moreover,the significance test of the coefficients in the method of regression model analysis as well as the test of fit conformity test in -m polymomial regression were described in detail.