. 2022 May 19;12(5):e8939. doi: 10.1002/ece3.8939

TABLE 1.

Spatial difference in sediment physicochemical properties

Physicochemical properties	Groups				Source of variation groups	Groups
Physicochemical properties	ZS (n = 3)	ZB (n = 3)	SS (n = 4)	SB (n = 4)	Source of variation groups	DE (n = 1)
TON%	0.02 ± 0.00^a	0.02 ± 0.00^a	0.03 ± 0.01^a	0.02 ± 0.00^a	n.s.	0.02
TOC%	0.16 ± 0.03^a	0.15 ± 0.01^a	0.29 ± 0.07^a	0.17 ± 0.03^a	n.s.	0.16
TN%	0.02 ± 0.00^a	0.02 ± 0.00^a	0.03 ± 0.01^a	0.02 ± 0.00^a	n.s.	0.02
TC%	1.23 ± 0.03^a	1.21 ± 0.01^a	1.37 ± 0.09^a	1.24 ± 0.04^a	n.s.	1.27
Pb (mg/kg)	11.34 ± 1.45^b	14.89 ± 0.44^ab	16.17 ± 0.47^a	16.41 ± 0.77^a	**	15.36
Cr (mg/kg)	4.40 ± 0.51^a	5.25 ± 0.79^a	4.46 ± 0.28^a	5.47 ± 0.59^a	n.s.	9.21
Co (mg/kg)	4.06 ± 0.55^a	4.93 ± 0.36^a	4.98 ± 0.18^a	4.91 ± 0.38^a	n.s.	6.56
Ni (mg/kg)	12.32 ± 1.57^a	16.20 ± 0.97^a	14.98 ± 0.59^a	16.18 ± 1.11^a	n.s.	19.94
Cu (mg/kg)	9.51 ± 1.12^a	11.07 ± 0.77^a	11.57 ± 0.80^a	12.05 ± 0.74^a	n.s.	16.03
Zn (mg/kg)	22.50 ± 3.40^a	29.33 ± 2.97^a	26.00 ± 1.46^a	29.95 ± 2.37^a	n.s.	41.41
As (mg/kg)	8.75 ± 1.37^a	11.47 ± 0.09^a	11.61 ± 0.85^a	11.19 ± 0.24^a	n.s.	10.4
Cd (mg/kg)	0.26 ± 0.03^a	0.31 ± 0.01^a	0.31 ± 0.02^a	0.29 ± 0.01^a	n.s.	0.31
Al (mg/kg)	2824 ± 282^a	3551 ± 379^a	3572± 115^a	3917 ± 576^a	n.s.	5430.113
Ti (mg/kg)	7153 ± 485^a	9735 ± 730^a	8630 ± 347 ^a	11,710 ± 1963^a	n.s.	12,376.23
V (mg/kg)	24.46 ± 3.04^b	32.32 ± 1.13^a	30.74 ± 1.48^a	32.17 ± 1.46^a	*	33.77
Mn (mg/kg)	412.47 ± 57.13^a	585.04 ± 81.16^a	559.32 ± 97.48^a	579.33 ± 87.75^a	n.s.	489.65
Fe (mg/kg)	4948 ± 609^a	6810 ± 659^a	5823 ± 203^a	6897 ± 701^a	n.s.	8978.47
D50(um)	50.41 ± 0.83^a	50.89 ± 0.62^a	61.12 ± 4.31^a	53.26 ± 4.55^a	n.s.	49.29

Data are expressed as mean ± SE (DE group was not included). n.s., not significant; *p < .05; **p < .01(one‐way ANOVA). Different superscript lower case letters indicate statistically significant differences at the α = .05 level among the sediment groups, using Tukey's honestly significant difference test (DE group was not included).

Abbreviations: D50, the median diameter or the medium value of the particle size distribution; DE, degradation;Pb (Cr, Co, Ni, Cu, Zn, As, Cd, Al, Ti, V, Mn, Fe), the heavy mental concentrations in sediment; SB, S. alterniflora bottom; SS, S. alterniflora surface; TC, total carbon; TN, total nitrogen; TOC, total organic carbon; TON, total organic nitrogen; ZB, Z. japonica bottom; ZS, Z. japonica surface.