Table 4 Pearson correlation coefficient between GHGs emission fluxes and water and sediment parameters.

GHGs fluxes	Aeration rate (L min⁻¹)	Treat	DO^a	pH^a	ORP^a	NH + 4-N^b	AP^b	AK^b
CO₂	2.4	Before aeration	-0.41	0.14	0.46	-0.54	0.27	-0.59
	2.4	After aeration	-0.56	-0.34	0.53	-0.35	-0.094	-0.67
	3.4	Before aeration	0.48	0.49	-0.82*	-0.095	0.22	0.11
	3.4	After aeration	0.28	0.001	0.62	0.46	-0.46	-0.22
	4.4	Before aeration	-0.12	0.44	-0.27	0.21	0.12	-0.36
	4.4	After aeration	-0.026	0.45	-0.34	-0.66	0.19	-0.34
CH₄	2.4	Before aeration	-0.83*	0.033	0.20	0.037	-0.025	0.036
	2.4	After aeration	-0.61	0.22	0.50	-0.25	0.44	0.30
	3.4	Before aeration	0.11	-0.24	-0.44	-0.46	0.33	0.039
	3.4	After aeration	-0.18	0.71	0.023	-0.35	-0.13	-0.84*
	4.4	Before aeration	-0.14	-0.25	-0.25	0.86*	-0.29	-0.26
	4.4	After aeration	-0.27	-0.58	0.70	-0.046	0.35	0.083
N₂O	2.4	Before aeration	-0.069	-0.025	-0.82*	0.86*	0.26	-0.23
	2.4	After aeration	0.087	-0.40	0.37	-0.15	-0.22	-0.35
	3.4	Before aeration	0.67	0.31	-0.95**	-0.51	0.64	-0.12
	3.4	After aeration	-0.83*	-0.40	0.33	0.40	0.43	0.060
	4.4	Before aeration	0.51	0.36	-0.28	0.36	0.79	0.46
	4.4	After aeration	-0.25	-0.043	-0.35	-0.78	0.66	0.13

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