Release, Survival, And Removal of Bovine Manure-Borne Indicator Bacteria Under Simulated Rainfall

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dc.contributor.advisorHill, Robert Len_US
dc.contributor.authorStocker, Matthew Danielen_US
dc.contributor.departmentEnvironmental Science and Technologyen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2017-09-13T05:36:15Z
dc.date.available2017-09-13T05:36:15Z
dc.date.issued2017en_US
dc.description.abstractThe effects of simulated rainfall intensities and its interactions with manure consistency and weathering on the release, survival, and removal of fecal indicator bacteria, Escherichia coli and enterococci, from land-applied dairy manure were evaluated. Rainfall intensity had significant effects on the number of bacteria in the soil following rainfall. Bacteria concentrations in soil decreased with increased soil depths and the topmost centimeter of soil accounted for the greatest proportion of bacteria. Escherichia coli persisted longer than enterococci once removed from manure. Manure consistency was not a significant factor in the removal of bacteria when manure was fresh, but as manure weathering progressed, consistency became a significant factor. The Vadas-Kleinman-Sharpley model was preferred over the exponential model for simulating the removal of manure-borne bacteria. Results of this work will be useful for improving predictions of the human health risks associated with manure-borne pathogenic microorganisms.en_US
dc.identifierhttps://doi.org/10.13016/M2PZ51M78
dc.identifier.urihttp://hdl.handle.net/1903/19806
dc.language.isoenen_US
dc.subject.pqcontrolledSoil sciencesen_US
dc.subject.pqcontrolledWater resources managementen_US
dc.subject.pqcontrolledEnvironmental healthen_US
dc.subject.pquncontrolledDepth-dependenceen_US
dc.subject.pquncontrolledE. colien_US
dc.subject.pquncontrolledenterococcien_US
dc.subject.pquncontrolledInfiltrationen_US
dc.subject.pquncontrolledModelingen_US
dc.subject.pquncontrolledRunoffen_US
dc.titleRelease, Survival, And Removal of Bovine Manure-Borne Indicator Bacteria Under Simulated Rainfallen_US
dc.typeThesisen_US

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