Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"Nitrate isotope"”.
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Nitrate isotope anomaly as a tracer of biogeochemical processes
… of the thesis is testing the potential of the nitrate MIF (massindependent fractionation) signature as a tracer of biogeochemical processes. Nitrate δ15N, δ17O and δ18O of water samples collected at the Marano lagoon (Italy) have been analysed, by combining the denitrifier method with the N2O …
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Wintertime nitrate isotope dynamics in the Atlantic sector of the Southern Ocean
… patterns of the nitrogen (N) and oxygen (O) isotopes of seawater nitrate for the region south of Africa. Water column profile and underway surface samples collected in July 2012 span a range of latitudes from the subtropics to 57.8°S, just beyond the Antarctic winter sea-ice edge (56.7°S). …
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Sources of nitrate in northwestern Nevada groundwater, 1985-2014 of the requirements for the degree of Master of Science in Hydrogeology
… was compiled to determine variables that affect nitrate concentrations in the region. Variables used in this study that may influence increased nitrate concentrations include land-use type (undeveloped/natural, agricultural/rural, low-residential, and high-residential land), septic tank density, …
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Nitrogen cycling in the South Atlantic and South Indian Oceans investigated using nitrate isotopes: implications for nutrient supply, ocean fertility, carbon export, and climate
… by measurements. In this thesis, four new nitrate isotope datasets from the South Atlantic and South Indian Oceans are presented alongside coincident nutrient and hydrographic data, and other published nitrate isotope datasets. Combined, these data provide a means of quantifying the rate …
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Identifying control points of excessive nitrate load in a pastoral catchment to support lake management
… scales. This study systematically investigated nitrate dynamic flow from a small pastoral catchment into a eutrophic lake located in the central plateau of New Zealand’s North Island. This study aimed to determine where and when hot spots and hot moments can be characterised as control points …