Table 1. Sediment characteristics in different freshwater ecosystems in Eastern China.

Sample		TP (mg kg-1)	Po (mg kg-1)	TN (%)	TC (%)	TC/TN	pH
Lakes	M	425	121	0.21	2.66	11	7.71
Lakes	R	269–641	49–262	0.06–0.98	0.56–13.62	6–20	6.78–8.20
Wetlands	M	599	128	0.19	2.58	17	8.04
Wetlands	R	379–903	42–253	0.04–0.49	0.82–6.00	10–42	6.95–8.54
Rivers	M	758	99	0.11	1.42	20	7.60
Rivers	R	87–6124	6–319	0.01–0.61	0.12–7.78	6–107	4.56–8.94

M: mean value, R: range value