PERMANOVA main tests of bacterial community composition based on Jaccard dissimilarities of ARISA profiles.

1Significant results (p (perm)<0.05) are highlighted in bold.
Displayed are tests for the factors ‘season’, ‘dilution’, ‘pH’ and their interactions and the partitioning of multivariate variation. p-values were obtained using type III sums of squares and 999 permutations under the full model. d.f.: degrees of freedom, SS: sums of squares, Sq. root: square root of the component of variation attributable to that factor in the model, in units of Jaccard dissimilarities.

1. 显著性结果（置换检验p值<0.05）以粗体形式标注。本部分展示了针对“季节”“稀释度”“pH值”及其交互效应的检验结果，以及多元变异的分解情况。p值通过III型平方和计算，并基于全模型进行了999次置换检验得到。缩写说明：d.f.为自由度（degrees of freedom），SS为平方和（sums of squares），Sq. root指模型中对应因子的变异分量的平方根，单位为雅卡德（Jaccard）相异度。