Table 2. The release rate of P in surface sediments of Poyang Lake in different intervals.

Time/min	Release rate mg (kg·min)-1
	1	2	3	4	5	6
0–5 min	8.65	8.26	10.50	10.66	10.25	7.70
>5–10 min	5.35	5.03	6.34	6.84	6.22	5.04
>10–30 min	2.21	2.11	2.35	2.48	2.41	2.05
>30–60 min	1.16	1.16	1.26	1.32	1.34	1.19
>60–90 min	0.81	0.84	0.89	0.96	0.98	0.84
>90–120 min	0.65	0.65	0.69	0.73	0.74	0.65
>120–180 min	0.45	0.44	0.46	0.49	0.50	0.44
>180–300 min	0.27	0.27	0.28	0.30	0.30	0.27