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Zone of Influence for Soluble Reactive Phosphorus in an Effluent Dominated River

Miller, Joseph G, III
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1078713833

Abstract Details

2004, MS, University of Cincinnati, Engineering : Environmental Science.
Benthic sediment and pore water from the Little Miami River (LMR) near Spring Valley, Ohio was sampled before and after three storm events to determine the zone of influence for soluble reactive phosphorus (SRP). The zone of influence is the area in a vertical cross section through the streambed where the pore water SRP concentration changes during the passage of a runoff event. Benthic sediment samples (d < 0.85 mm sieved coarse sand and finer) from three depths (z=0, 15, 30 cm) and five in-stream locations at a single transect were analyzed for their ability to adsorb and desorb SRP. The LMR stream bottom was surveyed during each sampling event to detect changes in the cross-sectional shape of the river. Laboratory analysis of benthic sediment and pore water showed a significant decrease (α =5%) in benthic SRP concentrations with the passage of storm events at all sample points except the 15 and 30 cm near-bank samples. The zone of influence for the SRP concentration was found to extend throughout the benthic zone examined except in areas that are "protected" by a layer of depositional silts near the edge of the LMR. The river cross-section profiles taken during sampling events showed a scouring and re-shaping of the river bottom. Following the storm event, water column SRP concentrations increase from upstream sources and subsequently benthic sediment SRP increases in the zone of influence. The benthic sediments may confound future improvements from TMDL controls and watershed improvements with regards to nutrient removal. While fine benthic material serves as a sink during periods of high SRP in the water column, it may also serve as a source of SRP as the river column phosphorus concentrations decline.
Steven Buchberger (Advisor)
58 p.
Environmental Sciences
Little Miami River; soluble reactive phosphorus; sediment sorption; zone of influence; nutrients

Recommended Citations

Citations

  • Miller, III, J. G. (2004). Zone of Influence for Soluble Reactive Phosphorus in an Effluent Dominated River [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1078713833

    APA Style (7th edition)

  • Miller, III, Joseph. Zone of Influence for Soluble Reactive Phosphorus in an Effluent Dominated River. 2004. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1078713833.

    MLA Style (8th edition)

  • Miller, III, Joseph. "Zone of Influence for Soluble Reactive Phosphorus in an Effluent Dominated River." Master's thesis, University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1078713833

    Chicago Manual of Style (17th edition)

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© 2004, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.