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 7 of 7 for “"nutrient budget"”.
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AN INVESTIGATION OF AQUATIC MACROPHYTE-BASED AQUATIC WASTEWATER TREATMENT SYSTEMS FOR TEMPERATE CLIMATES (ELODEA NUTTALLII, PHOTOSYNTHESIS, NUTRIENT BUDGET, ACTIVE TRANSPORT, NITRIFICATION)
… as candidates. The hydraulic, organic, and nutrient loadings to the reactors were similar to design values for water hyacinth (Eichornia crassipes) systems. Nitrification occurred on a year round basis. Elodea nuttallii was the best candidate. The plant was productive year round (0.5-4.5 g …
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The Oceanography and Modelling of the Pontevedra Ria (NW Spain)
… dependent on freshwater inputs and upwelling of nutrient-rich East North Atlantic Central Water from the shelf. Intrusions of the Poleward Current were also detected during winter. A stratified box model approach predicted that upwelling water fluxes into the ria of 2-4x10³ m³ s-1, of which >30% …
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Regional factors governing performance and sustainability of wastewater treatment plants in Honduras : Lake Yojoa Subwatershed
… experiencing eutrophication from overloading of nutrients, in part due to inadequate wastewater treatment throughout the Lake Yojoa Subwatershed. Some efforts are being made to address the issue of wastewater treatment, but they frequently suffer from lack of oversight and follow-through. As a …
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Speciation and dynamics of phosphorus in relation to lake restoration methods
… zeolite mineral (Z2G1) to reduce internal nutrient loading. This study examines water column and sediment nutrient dynamics; focusing on phosphorus (P) and the ecosystem response to lake restoration designed to reduce levels of P. Trends in P concentrations in Lake Okaro were linked to the …
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Near-surface hydrology and hydrochemistry under contrasting land-cover
… an in-depth understanding of the water and nutrient cycle. On this basis we compared the involved hydrological pathways for rainfall to reach streams and the nutrient budgets of a tropical rainforest and a pasture. In addition we studied the links of hydrochemical differences to differences …
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Dynamics of internal nutrient loading in a eutrophic, polymictic lake (Lake Rotorua, New Zealand)
… This study examines the dynamics of internal nutrient recycling processes in Lake Rotorua, including sediment nutrient release, sedimentation and resuspension, phytoplankton nutrient limitation and the relative importance of internal and external nutrient loads on influencing cyanobacteria …
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Regional Nutrient Budgets in Forest Soils in a Policy Perspective
… from ecological and social perspectives. Nutrient sustainability is essential to maintain the production capacity and reduce the effects of acidification and eutrophication. Nutrient sustainability is strongly affected by anthropogenic influences such as air pollution and forestry …