Effect of bottom sediments on the nutrient and metal concentration in macrophytes of river-lake systems

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Table 1

The concentration of individual components: nutrient and metal [g kg⁻¹], organic matter [%] and granulometric fraction [%] with reference to the location of macrophytes in the water body.

Zone	N_K	P	Ca	Mg	Mn	Ni	Cr	Cd
Recreational	67.66	0.84	35.01	5.67	0.52	0.015	0.002	<
Bay	50.00	0.74	79.44	11.92	0.59	0.018	0.003	0.0003
Main	68.79	0.48	22.68	4.66	0.44	0.012	0.004	0.0003
Forest	40.84	0.58	54.88	16.94	0.29	0.001	0.001	<
P	0.053	0.151	0.301	0.875	0.270	0.060	0.066	0.150

Zone	Cu	Zn	Pb	OM	Medium sand	Fine sand	Very fine sand	Clay, silt
Recreational	0.0016	0.015	0.0005	15.70	36.18	17.67	10.65	35.50
Bay	0.0024	0.013	0.0196	16.28	39.10	15.38	7.44	38.09
Main	0.0019	0.013	0.0062	17.88	36.84	16.56	11.23	35.37
Forest	0.0020	0.004	0.000	17.97	38.14	13.36	17.86	30.64
p	0.708	0.046*	0.010*

Denotations: n = 18, p − significance level in Kruskal–Wallis test; * − the results were regarded as statistically significant at p ≤ 0.05; in bold − differences between groups of means statistically significant in the post hoc Dunn's test, < − results below the level of determination of equipment.

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