Table 2.

Redundancy analyses of the relationship between the bacterioplankton communities at different taxonomic levels and physicochemical water properties.

Level	The three top highest-loading water propertiesa			First axis (%)	Second axis (%)	Total explanation (%)	F-ratiob	pb	rc	pc
OTU	${\text{NH}}_4^{+}$	TOC	Tem	25.0	13.0	46.8	5.87	0.005	0.692	0.001
Genus	${\text{NO}}_3^{-}$	DIN	Tem	66.3	1.7	68.4	14.41	0.005	0.391	0.003
Family	${\text{NO}}_3^{-}$	DIN	Tem	69.5	2.1	73.1	19.10	0.005	0.646	0.001
Order	${\text{NH}}_4^{+}$	${\text{NO}}_3^{-}$	TOC	65.2	7.9	74.9	19.91	0.005	0.516	0.001
Class	TN	TSS	Tem	55.9	8.3	65.7	12.75	0.005	0.412	0.001
Phylum	DIN	TSS	Tem	59.6	11.7	72.7	17.74	0.005	0.627	0.001

^aVariables selected by forward selection based VIF with 999 Monte Carlo permutations.

^bF- and p-values of analysis of variance.

^cMantel analyses for the relationship between bacterioplankton communities at different levels and selected environmental factors.