Koontz, J., D.G. Huggins, C.C. Freeman, D.S. Baker - Central Plains ...

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Phosphorus - P mg/L with small intermittent pools having large amounts of detritus. 7463, located in the Swan Lake complex also had significant detrital matter, but was dominated by cattail and bulrush. In the Swan Lake site was edged with by a deeper pool allowing the establishment of some aquatic plants. Phosphorus Most of the total phosphorus in these wetlands appeared to be organic phosphorus (Figure 12). Median values for all forms of phosphorus were around 0.1 to 0.2 mg/L of P. However, total and organic phosphorus levels in some wetlands were well above 1000 ug/L. 4.0 3.0 2.0 1.0 0.0 7460 7438 7461 7460 7463 7461 7438 Ortho P Total P Organic P Figure 12. Box plots showing range of phosphorus values and moderate and extreme outliers among the random population. Ortho P is orthophosphate. Wetland groups created by aggregating wetlands into ecoregion and hydrological classes shared similar log mean and median values among the nutrient measures of nitrogen and phosphorus. Nitrogen to phosphorus ratios were also similar among these groups, though more outliers were observed in the N:P groupings (Figure 13). 26 of 84 7460 7463 7461
N:P ratio 30.0 24.0 18.0 12.0 6.0 0.0 7454 7470 7453 7457 7444 Available N:P Total N:P Figure 13. Box plots of nitrogen to phosphorus ratios, moderate, and extreme outliers among the random population. Carbon Unlike nitrogen and phosphorus, measures of variance of total organic carbon (TOC) and dissolved organic carbon (DOC) were found to be significantly higher in palustrine sites which had a wider range of values than lacustrine or riverine sites (Figure 14). Tukey-Kramer multiple comparison of mean values among classes revealed no significant differences. Medians test of data did not identify significant variance or differences in median values for TOC or DOC. The dissolved organic carbon makes up a considerable amount of the total water column carbon measure, approximately 88%, indicating that carbon was not incorporated in sestonic organisms and is in considerable surplus concentrations in these wetlands. 7457 7470 7437 7454 7474 27 of 84
Page 1 and 2: Assessment of Floodplain Wetlands o
Page 3 and 4: Nitrogen ..........................
Page 5 and 6: Executive Summary This project soug
Page 7 and 8: other wetland parameters and assess
Page 9 and 10: quality of plant community, respect
Page 11 and 12: was inevitable, but care was taken
Page 13 and 14: Evidence that waterfowl and/or amph
Page 15 and 16: Floristic Quality Assessments Flori
Page 17 and 18: FQAI ALL 30 25 20 15 10 5 0 Figure
Page 19 and 20: MEAN CONSERVATISM ALL 6 5 4 3 2 1 0
Page 21 and 22: Mean Conductivity mS/cm 0.6 0.5 0.4
Page 23 and 24: Table 7). The wide range of values
Page 25: Nitrogen - N mg/L Total Nitrogen mg
Page 29 and 30: Chlorophyll a ug/L 200 180 160 140
Page 31 and 32: wetlands, respectively. Macroinvert
Page 33 and 34: from analysis did not show signific
Page 35 and 36: major wetland classes when ANOVA an
Page 37 and 38: measurement. There are sites within
Page 39 and 40: measurements, turbidity was conside
Page 41 and 42: TOC mg/L TOC mg/L 16 14 12 10 8 6 4
Page 43 and 44: Nitrate:Ammonia Ratio Phase II Tota
Page 45 and 46: CDF 100 90 80 70 60 50 40 30 20 10
Page 47 and 48: was true for organic nitrogen (R 2
Page 49 and 50: Figure 34. Error bar plots of mean
Page 51 and 52: and deethylatrazine were both prese
Page 53 and 54: suspected that differences in sampl
Page 55 and 56: Figure 38. Cumulative distribution
Page 57 and 58: Table 11. Metrics used in the devel
Page 59 and 60: tested: Percent Clingers (+) (p=0.0
Page 61 and 62: CDF Figure 42. Cumulative distribut
Page 63 and 64: Total Nitrogen mg/L Mean Conductivi
Page 65 and 66: Percent Hydroptilidae = 1.463766 +
Page 67 and 68: Table 14. Descriptive statistics fo
Page 69 and 70: MMI Scores 100 90 80 70 60 50 40 30
Page 71 and 72: ecoregions. Mean pH was also found
Page 73 and 74: MMI Scores UB Wetland Type MMI Scor
Page 75 and 76: Acknowledgements Field crew members
Page 77 and 78:
Smith, L.M., N.H. Euliss, D.A. Wilc
Page 79 and 80:
a. Land and soils coverage maps. b.
Page 81 and 82:
Code Phase Longitude Latitude Site
Page 83 and 84:
Appendix C. Laboratory measurements
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Koontz, J., D.G. Huggins, C.C. Freeman, D.S. Baker - Central Plains ...

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