HYDROLOGICAL, BIOLOGICAL, AND GEOCHEMICAL RELATIONSHIPS AMONG CARBON, NITROGEN, AND BASE CATIONS IN RESTORED AND UNRESTORED URBAN STREAMS

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dc.contributor.advisorKaushal, Sujay Sen_US
dc.contributor.authorDoody, Thomas Rossiteren_US
dc.contributor.departmentGeologyen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2017-09-14T05:37:00Z
dc.date.available2017-09-14T05:37:00Z
dc.date.issued2017en_US
dc.description.abstractUrban infrastructure changes hydrologic flowpaths of water into streams and alters ecosystem function. Geomorphic stream restoration is commonly implemented to stabilize channels, while ecosystem function, and nutrient retention are of secondary concern. This research investigated whether restoration alone significantly influences N uptake in streams and if significant hydrological, biological, and geochemical relationships exist between coupled biogeochemical cycles that should be considered when evaluating restorations. Carbon, nitrogen, base cations, and stream metabolism dynamics were investigated in six urban streams in Baltimore,MD. Nitrate tracer injections were used to quantify nitrogen uptake dynamics. Results did not show significant differences in nitrogen uptake based on restoration. Organic carbon, inorganic carbon, and nitrogen each have distinct but interrelated hydrological, biological, and geochemical relationships across all sites. These dynamic relationships may also significantly affect nitrogen uptake, but more spatiotemporal data are needed to quantify and understand variability among restored and unrestored sites.en_US
dc.identifierhttps://doi.org/10.13016/M2NK3655P
dc.identifier.urihttp://hdl.handle.net/1903/19903
dc.language.isoenen_US
dc.subject.pqcontrolledHydrologic sciencesen_US
dc.subject.pqcontrolledBiogeochemistryen_US
dc.subject.pqcontrolledWater resources managementen_US
dc.subject.pquncontrolledcarbonen_US
dc.subject.pquncontrolledcationsen_US
dc.subject.pquncontrollednitrogenen_US
dc.subject.pquncontrolledrestorationen_US
dc.subject.pquncontrolledurbanizationen_US
dc.subject.pquncontrolledwatersheden_US
dc.titleHYDROLOGICAL, BIOLOGICAL, AND GEOCHEMICAL RELATIONSHIPS AMONG CARBON, NITROGEN, AND BASE CATIONS IN RESTORED AND UNRESTORED URBAN STREAMSen_US
dc.typeThesisen_US

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