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Table 1 Summary statistics for parameters and matrices used in this study of samples collected along the flow-ways 1 and 3 flow-path transect within Stormwater Treatment Area-2. Summary statistics expressed as mean ± standard error (sample size). Matrices include surface water, soil flocculent material, recently accreted soil, and living aboveground biomass of sampled vegetation. Stoichiometric ratios are expressed as molar ratios and are unitless

From: Evaluation of nutrient stoichiometric relationships among ecosystem compartments of a subtropical treatment wetland. Do we have “Redfield wetlands”?

Compartment Parameter FW 1 FW 3
Surface water pH (SU)a 7.4 ± 0.0009 (65608) 8.4 ± 0.002 (54698)
Dissolved oxygen (% Sat)a 14.5 ± 0.08 (51125) 102.1 ± 0.34 (52865)
DOC (mM) 2.2 ± 0.04 (140) 2.6 ± 0.02 (249)
TP (mM) 0.002 ± 0.0002 (146) 0.001 ± 0.00006 (241)
TN (mM) 0.1 ± 0.003 (141) 0.2 ± 0.001 (249)
DOC:TP (unitless) 2210 ± 162 (126) 3545 ± 151 (241)
DOC:TN (unitless) 18.7 ± 0.2 (129) 16.6 ± 0.11 (249)
TN:TP (unitless) 117.6 ± 8.4 (127) 206 ± 8.0 (241)
Floc LOI (%) 76.4 ± 2.1 (34) 22.7 ± 1.2 (35)
Bulk density (g cm-3) 0.03 ± 0.003 (37) 0.12 ± 0.007 (37)
TC (mol m−2) 50.2 ± 3.1 (34) 159.7 ± 13.5 (35)
TP (mol m−2) 0.08 ± 0.007 (34) 0.21 ± 0.03 (35)
TN (mol m−2) 3.5 ± 0.2 (34) 7.8 ± 0.7 (35)
TC:TP (unitless) 671 ± 38.6 (34) 908 ± 56 (35)
TC:TN (unitless) 14.5 ± 0.2 (34) 20.6 ± 0.3 (35)
TN:TP (unitless) 46.0 ± 2.3 (34) 44.3 ± 2.8 (35)
Soil LOI (%) 81.2 ± 1.4 (34) 54.2 ± 3.4 (34)
Bulk density (g cm-3) 0.08 ± 0.004 (37) 0.22 ± 0.01 (37)
TC (mol m−2) 63.8 ± 7.0 (34) 156 ± 17.0 (33)
TP (mol m−2) 0.07 ± 0.009 (34) 16.4 ± 0.8 (33)
TN (mol m−2) 3.8 ± 0.4(34) 1442 ± 79.6 (33)
TC:TP (unitless) 1125 ± 55 (34) 1605 ± 149 (33)
TC:TN (unitless) 16.9 ± 0.2 (34) 21.6 ± 0.4 (33)
TN:TP (unitless) 66.5 ± 3.2 (34) 78.0 ± 8.2 (33)
Vegetation LOI (%) 92.6 ± 0.3 (39) 53.8 ± 2.7 (33)
Biomass (g cm-2) 719 ± 67.3 (39) 303 ± 41.7 (33)
TC (mol m−2) 25.5 ± 2.4 (39) 6.1 ± 0.7 (33)
TP (mol m−2) 0.03 ± 0.004 (39) 0.008 ± 0.001 (33)
TN (mol m−2) 0.5 ± 0.05 (39) 0.4 ± 0.04 (33)
TC:TP (unitless) 1055 ± 96.5 (39) 845 ± 116 (33)
TC:TN (unitless) 56 ± 2.0 (39) 16.1 ± 0.8 (33)
TN:TP (unitless) 18.2 ± 1.2 (39) 48.1 ± 4.8 (33)
  1. DOC dissolved organic carbon, TP total phosphorus, TN total nitrogen, TC total carbon, LOI loss-on-ignition
  2. aData from 15-min/30-min logged data using water quality sondes deployed during flow events