Functional Assessment for a Proposed Stormwater Treatment Wetland

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dc.contributor.advisor Dr. Gregory D. Jennings, Committee Member en_US
dc.contributor.advisor Dr. Robert E. Holman, Committee Member en_US
dc.contributor.advisor Dr. Douglas J. Frederick, Committee Member en_US
dc.contributor.advisor James D. Gregory, Committee Chair en_US Matthews, Kimberly Y. en_US 2010-04-02T17:56:08Z 2010-04-02T17:56:08Z 2003-02-13 en_US
dc.identifier.other etd-12302002-083117 en_US
dc.description.abstract Urbanization can dramatically alter the hydrologic cycle and water quality, causing adverse effects on urban streams and floodplain wetlands. A proposed regional stormwater treatment wetland on a forested floodplain of South Buffalo Creek is planned. The wetland should improve water quality and stream habitat in an urban watershed found in Greensboro, NC, USA. The objectives of this research were to (1) characterize in-stream stormwater concentrations of sediment and nutrients and species composition of macroinvertebrates within South Buffalo Creek, (2) determine geomorphic properties of the stream channel upstream, within, and downstream of the proposed stormwater treatment wetland, (3) establish baseline water table hydrology on the floodplain of the proposed stormwater treatment wetland, and (4) determine the composition of the existing forest stand. The proposed wetland will remove from stormflow an estimated 1092 to 163 g/m2/yr (3111 to 4666 tons/mi2/yr) total suspended sediment (TSS) per unit area of the wetland with an accumulation of 0.08 cm/yr (0.20 in/yr). Total nitrogen and total phosphorus will be removed from floodwater in the wetland at a rate of 67% and 46% respectively. Reduction of peak flow and shear stress during storm flow should decrease channel erosion and lead to increased stream stability. Average depth to the local water table level on the floodplain should decrease, leading to an increased area of functioning wetland. Forest vegetation should likely shift to more wetland species with changes occurring in the herbaceous and understory layers first. Overall, the proposed stormwater treatment wetland should improve water quality and increase stream stability in South Buffalo Creek. en_US
dc.rights I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. en_US
dc.subject hydrology en_US
dc.subject nitrogen en_US
dc.subject total suspended sediment en_US
dc.subject stormwater en_US
dc.subject wetland en_US
dc.subject Urbanization en_US
dc.subject BMP en_US
dc.subject best management practice en_US
dc.subject wetland hydrology en_US
dc.subject wetland en_US
dc.subject loading en_US
dc.subject geomorphology en_US
dc.subject stream channelization en_US
dc.subject pollutant yields en_US
dc.subject phosphorus en_US
dc.subject water quality monitoring en_US
dc.title Functional Assessment for a Proposed Stormwater Treatment Wetland en_US MS en_US thesis en_US Natural Resources en_US

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