TABLE 2.

Mean values for the characteristics of the local environmental variables in different water treatments during the one-year experimental period.

Index	Water treatment
	CK	SS	DS
AT (°C)	23.61 (1.12)	21.64 (1.25)	15.66 (0.62)
pH	6.16 (0.04)	6.7 (0.05)	6.89 (0.07)
WC (μS⋅m–1)	409.25 (5.55)	406.16 (7.83)	402.23 (9.05)
DO (mg⋅L–1)	0	15.24 (0.46)	5.7 (0.41)

CK, SS, and DS involve no submergence, shallow submergence, and deep submergence, respectively. Values represent the means with standard deviations in parentheses across the one-year experiment (n = 120). AT, average temperature; WC, water conductivity; DO, dissolved oxygen.