Environmental stress and eutrophication in freshwater wetlands: evidence from carbon and nitrogen stable isotopes in cattail (Typha domingensis Pers.)

Ecological Processes

Table 4 Averages of environmental variables for each study site (see Fig. 1 for site location) during the study period

Site	pH	TP	SRP	DIN	TN	TN:TP	Habitat type
Site	SU	μg L⁻¹	μg L⁻¹	mg L⁻¹	mg L⁻¹	Molar ratio	Habitat type
Cell 3	7.4	42	16	0.18	2.05	108	Marsh
Cell 4	7.1	46	12	0.20	2.07	99	Marsh
E0	7.1	74	41	0.48	2.97	89	Canal
F0	7.4	137	2	0.84	2.44	39	Canal
F1	7.3	99	3	0.08	2.99	67	Marsh
F2	7.3	75	3	0.10	2.49	73	Marsh
F3	7.3	30	2	0.08	2.32	171	Marsh
F4	7.3	24	2	0.03	2.09	197	Marsh
F5	7.4	11	2	0.06	2.14	425	Marsh
L35B	7.20	13	5	0.09	1.75	298	Canal
L67	7.00	15	5	0.43	1.65	238	Canal
3ATH	7.20	13	4	0.10	1.38	242	Marsh
3A15	7.10	6	1	0.04	1.02	401	Marsh
U3	7.50	5	2	0.28	2.18	964	Marsh