C:N:P stoichiometry of particulate and dissolved organic matter in river waters and changes during decomposition

Table 1 Median concentrations of particulate organic carbon (POC), dissolved organic carbon (DOC), particulate organic phosphorus (POP), dissolved organic phosphorus (DOP), particulate organic nitrogen (PON), and dissolved organic nitrogen (DON) in the studied rivers and their molar ratios

Rivers	Date	Particulate organic matter						Dissolved organic matter
Rivers	Date	POC	PON	POP	C:N	C:P	N:P	DOC	DON	DOP	C:N	C:P	N:P
North Han	4/23/2007	700	640	8	1.28	226	185	1535	1108	4	1.62	991	656
	8/28/2007	810	350	27	2.70	78	29	1905	665	10	3.34	492	147
	10/1/2007	560	300	16	2.18	90	42	980	785	5	1.46	506	348
South Han	5/20/2008	1620	940	23	2.01	182	92	1770	206	4	10.03	1143	114
	7/15/2008	2170	440	20	5.76	280	49	1920	35	3	64.02	1653	26
	10/8/2008	930	340	11	3.19	218	72	1560	89	3	20.46	1343	79
Han	4/23/2007	2910	815	105	4.17	72	17	3340	1194	6	3.26	1438	459
	8/28/2007	1365	2540	118	0.63	30	48	2550	444	47	6.70	140	21
	10/1/2007	1110	2305	50	0.56	57	103	1900	690	8	3.21	614	191
Keum	10/15/2005	2175	746	49	3.40	115	34	4185	468	10	10.44	1081	104
	11/19/2005	2355	752	72	3.65	84	23	3750	499	8	8.77	1211	147
	3/10/2006	2050	368	94	6.50	56	9	3895	811	21	5.60	479	86
	6/9/2006	2025	654	80	3.61	65	18	3750	781	14	5.60	692	128
Youngsan	6/14/2006	2650	1555	44	1.99	156	78	4400	985	10	5.21	1137	218
	8/14/2006	2080	520	46	4.67	117	25	2820	945	13	3.48	560	161
	12/2/2006	1125	525	37	2.50	79	32	2250	655	8	4.01	727	193
	2/3/2007	1560	895	32	2.03	126	63	3570	725	14	5.75	659	119
Sumjin	6/14/2006	960	720	29	1.56	86	56	3300	915	8	4.21	1066	270
	8/14/2006	930	535	28	2.03	86	43	1830	1190	8	1.79	591	329
	12/2/2006	440	590	13	0.87	87	105	975	1140	4	1.00	630	631
	2/3/2007	605	530	12	1.33	130	102	1825	1165	3	1.83	1572	860
Mean		1482	812	43	3	115	58	2572	738	10	8	892	252
Median		1365	640	32	2	87	48	2250	781	8	4	727	161
SD		743	603	32	2	64	42	1073	351	10	14	410	225

ISSN: 2288-1220