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 9 of 9 for “"nitrogen budget"”.
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Evaluation of ozone treatment, pilot-scale wastewater treatment plant, and nitrogen budget for Blue Ridge Aquaculture
… ozonation efficacy and pollutant removal. A nitrogen budget for the BRA facility was derived, indicating that 35% of the nitrogen applied in feed was assimilated in fish. I evaluated the possible impact of residual inorganic nitrogen forms from treated effluent upon fish in the recirculating …
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A nitrogen budget for the Cape Metropolitan area : is nitrogen enrichment occurring in the soils of remnant patches of lowland fynbos?
Anthropogenic activities create nitrogenous pollutants which threaten the existence of lowland fynbos, comprising 92 Red Data Book species and 14 Cape Flats endemics. A regional Nitrogen budget was constructed through the collation of existing data for the Cape Metropolitan Area. An NOx inventory …
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Measurements, Modeling, and Analysis of Fluxes of Nitrogen Compounds
Nitrogen compounds play a significant role in atmospheric chemistry, contributing to acute effects on human health and the environment. Oxidized and reduced forms of nitrogen are attributed to increasing concentration levels of tropospheric ozone, photochemical smog, acid rain, and eutrophication …
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Regional Nutrient Budgets in Forest Soils in a Policy Perspective
… deals with the nutrient sustainability regarding nitrogen, calcium, magnesium and potassium on a regional scale in Swedish forests, and the potential effects of forests on carbon sequestration. It includes method development of regional weathering rate modelling, regional budget calculations for …
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The Feeding ecology of, and carbon and nitrogen budgets for, sardine sardinops sagax in the Southern Benguela upwelling ecosystem
… anchovy Engraulis capensis. Carbon and nitrogen budget models constructed using data from these studies were used to quantify the effect of particular food environments upon sardine growth. Sardinops sagax is primarily a filter-feeder, with food particles <1230μm total length eliciting a …
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Seawater circulation in coastal aquifers : processes and impacts
… contribution of this circulation to the nitrogen budget of the Bay.
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Ocean biogeochemistry in the northern Gulf of Mexico, the East/Japan Sea, and the South Pacific with a focus on denitrification
Ocean nitrogen fixation and denitrification are crucial nitrogen source and sink mechanisms for the global ocean environment. While recent studies have reported that oceanic denitrification has increased over the last few decades, others have suggested that global ocean nitrogen fixation rates have …
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Comparative Assessment of Ammonia Emissions from Potential Environmentally Superior Technologies for Swine Facilities
… total ammonia emissions and 21% of the state's nitrogen budget. Due to the short residence time of NH3 (1-5 days) in the atmosphere, deposition occurs close to emission sources. Ammonia that does not deposit quickly combines with acidic species such as sulfuric acid, nitric acid, and …