Optimization of a Coastal Environmental Monitoring Network Based on the Kriging Method: A Case Study of Quanzhou Bay, China

Table 1

Mean values of COD, DIN, and PO₄-P and the Trophic State Index in the seawater of Quanzhou Bay from 2009 to 2012 (mg/L).

Site	COD	DIN	PO4-P	Trophic State Index
1	1.314	2.186	0.071	7.602
2	1.184	1.929	0.047	3.947
3	1.141	1.617	0.049	3.381
4	0.924	1.319	0.040	1.799
5	1.056	1.661	0.049	3.209
6	1.158	1.674	0.062	4.444
7	0.776	1.171	0.033	1.124
8	0.807	1.332	0.043	1.694
9	0.591	0.896	0.032	0.621
10	0.566	0.716	0.032	0.477
11	0.543	0.736	0.027	0.402
12	0.513	0.896	0.031	0.520
13	0.574	0.744	0.023	0.369
14	0.556	0.762	0.024	0.376
15	0.483	0.662	0.022	0.265