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dc.contributor.advisorFellows, Christy
dc.contributor.authorHinshaw, Sarra Evelyn
dc.date.accessioned2018-01-23T02:29:09Z
dc.date.available2018-01-23T02:29:09Z
dc.date.issued2008
dc.identifier.doi10.25904/1912/1350
dc.identifier.urihttp://hdl.handle.net/10072/366356
dc.description.abstractBecause of their position in the landscape, riparian zones can function as a buffer between waterways and excess nutrient inputs from the terrestrial environment. Riparian zones have the potential to remove large amounts of nitrate through the process of denitrification. Denitrification is considered a permanent removal of N because nitrate is transformed into N2O and N2. While removal of nitrate via denitrification can improve water quality, there are potential negative effects of denitrification because N2O is a greenhouse gas. Understanding controls on whether denitrification results in N2O versus N2, is important for riparian zone management. The overall research question of my thesis was "What controls rates of denitrification and N2O production in riparian zones and their associated streams?" Laboratory methods were used to examine the spatial and temporal variability in potential denitrification rates and the proportion of nitrate transformed to N2O in riparian zone soils and stream sediments. In-situ fluxes of N2O and two other greenhouse gases, CO2 and CH4, were also measured in riparian zones and streams. The research was conducted in South-East Queensland in the subtropics, a climate type that is underrepresented in the literature on riparian zone nitrogen cycling...
dc.languageEnglish
dc.publisherGriffith University
dc.publisher.placeBrisbane
dc.rights.copyrightThe author owns the copyright in this thesis, unless stated otherwise.
dc.subject.keywordsriparian zones
dc.subject.keywordsdenitrification
dc.subject.keywordsgreenhouse gas fluxes
dc.subject.keywordssubtropical riparian zones
dc.subject.keywordsnitrate removal
dc.subject.keywordsnutrient inputs
dc.subject.keywordsriparian zone soils
dc.subject.keywordsstream sediments
dc.subject.keywordsdenitrification potential
dc.titleDenitrification and Greenhouse Gas Fluxes in Subtropical Riparian Zones
dc.typeGriffith thesis
gro.facultyScience, Environment, Engineering and Technology
gro.rights.copyrightThe author owns the copyright in this thesis, unless stated otherwise.
gro.hasfulltextFull Text
dc.contributor.otheradvisorBunn, Stuart
dc.rights.accessRightsPublic
gro.identifier.gurtIDgu1315803323572
gro.identifier.ADTnumberadt-QGU20100705.083859
gro.source.ADTshelfnoADT0756
gro.thesis.degreelevelThesis (PhD Doctorate)
gro.thesis.degreeprogramDoctor of Philosophy (PhD)
gro.departmentSchool of Environment
gro.griffith.authorHinshaw, Sarra Evelyn


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