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Articles 1 - 12 of 12
Full-Text Articles in Physical Sciences and Mathematics
Land Use/Land Cover Uncertainty Analysis Using Hydrological Modeling In The Northern Watershed Of Lake Okeechobee, Andres Lora Santos
Land Use/Land Cover Uncertainty Analysis Using Hydrological Modeling In The Northern Watershed Of Lake Okeechobee, Andres Lora Santos
USF Tampa Graduate Theses and Dissertations
Over the past 150 years, Florida has undergone a major land-form transformation, transitioning from a natural to a primarily built environment. The state's population has grown exponentially, from less than 50,000 residents in the 1850s to approximately 22 million residents today. This population growth has led to significant changes in land use, including urbanization, mining, and agriculture. This trend is expected to continue, with projections indicating an increase in urbanization across the state. 2070 land use/land cover projections were used as input for the Watershed Assessment Model (WAM) to analyze the potential impact of these changes on flow, total nitrogen …
Watershed Management For Nutrient Control In Taylor Creek And Nubbins Slough, Florida, Rachael Z. Cooper
Watershed Management For Nutrient Control In Taylor Creek And Nubbins Slough, Florida, Rachael Z. Cooper
USF Tampa Graduate Theses and Dissertations
Despite efforts to improve water quality within the watershed since the 1970s, harmful algal blooms (HABs) still occur within Lake Okeechobee (LO). HABs are harmful to the people, the ecosystem, and the economy dependent on the lake. Taylor Creek Nubbins Slough (TCNS) is a subwatershed of the lake, contributing to a large percentage of the nutrient loading. Due to the size and complexity of LO’s watershed, two smaller basins within the TCNS subwatershed were selected to evaluate the following research questions: (1) How do water quality trends contrast between two basins? (2) How do nutrient load and treatment within the …
An Assessment Of Constructed Wetland Treatment System Cells: Removal Of Excess Nutrients And Pollutants From Municipal Wastewater In Lakeland, Florida, Molly Klinepeter
An Assessment Of Constructed Wetland Treatment System Cells: Removal Of Excess Nutrients And Pollutants From Municipal Wastewater In Lakeland, Florida, Molly Klinepeter
USF Tampa Graduate Theses and Dissertations
Wastewater treatment wetlands are proven valuable alternatives to the treatment of wastewater in a more natural environment. These wetlands can be natural or constructed, and come in a variety of types and sizes. The purpose of this study was to determine the efficiency of water treatment for nutrients and pollutants utilized by the City of Lakeland in treating their municipal wastewater by wetland treatment system cells. This study is important in order to ensure the successful use of the wetland, as well as to determine the impacts previous phosphorus mining use may have on the effectiveness of treatment. Following FDEP …
Geographical Information Systems (Gis) Applied To Urban Nutrient Management: Data Scarce Case Studies From Belize And Florida, Charlotte Juliane Haberstroh
Geographical Information Systems (Gis) Applied To Urban Nutrient Management: Data Scarce Case Studies From Belize And Florida, Charlotte Juliane Haberstroh
USF Tampa Graduate Theses and Dissertations
Nutrient inputs into the environment greatly impact urban ecosystems. Appropriate management strategies are needed to limit eutrophication of surface water bodies and contamination of groundwater. In many existing urban environments, retrofits or complete upgrades are needed for stormwater and/or wastewater infrastructure to manage nutrients. However, sustainable urban nutrient management requires comprehensive baseline data that is often not available. A Framework for Urban Nutrient (FUN) Management for Geographic Information Systems (GIS) was developed to specifically address those areas with limited data access. Using spatial analysis in GIS, it links water quality, land use, and socio-demographics, thereby reducing data collection and field-based …
Decision Support Systems For Water Management: Investigating Stakeholder Perceptions Of System Use, Gabriella Balsam
Decision Support Systems For Water Management: Investigating Stakeholder Perceptions Of System Use, Gabriella Balsam
USF Tampa Graduate Theses and Dissertations
Water resources are becoming increasingly important to protect, but doing so has proven challenging due to the complex nature of resource management. Many researchers have been trying to develop “usable science” to aid in this endeavor, and one method of this is the development of decision support systems. This has led to the employment of this method as a potential tool for decision makers, scientists, and the interested public to use; yet little literature is available on the success of their implementation. This study attempted to fill the gaps by gathering data through surveys and interviews from stakeholders who are …
Environmental And Community Health In South San Diego County: A Behavior Analysis Of Recreational Ocean Users Along Imperial Beach, California, Trista Brophy
USF Tampa Graduate Theses and Dissertations
Garbage & sewage runoff into the Pacific Ocean at the shoreline along the U.S./Mexico Border region poses serious health and environmental threats. The purpose of this study was to analyze the current beach users’ behavioral factors that may be linked to illness prevalence from Coronado Island to the U.S./Mexico border at Imperial Beach in San Diego County. It is a continuation of a study completed by Wildcoast and Imperial Beach Clinic in 2011. The study tried to answer the following two major questions: How have the number of illnesses reported by users along South San Diego County beaches changed in …
Diffuse Nutrient Pollution From Residential Catchments, Melissa Rachelle Butcher
Diffuse Nutrient Pollution From Residential Catchments, Melissa Rachelle Butcher
USF Tampa Graduate Theses and Dissertations
Nonpoint source nutrient pollution is diffuse pollution lacking discrete origin and conveyance. This thesis synthesizes and critically reviews research on residential nitrogen and phosphorus loss to stormwater runoff and leaching. The evaluation pulls from research covering influential socio-demographic indicators, such as use of lawn maintenance services and homeowner fertilizer practices. The extent to which such social and economic factors may influence the prevalence and fate of diffuse nutrients in stormwater runoff from residential areas has not been adequately established. Understanding the source and influencing factors of diffuse nutrient pollution is important in order to effectively protect surface and groundwater resources. …
Sustainable Livelihood Analysis Of An Irrigation Project In Ta Haen, Cambodia., Irene Rehberger Bescos
Sustainable Livelihood Analysis Of An Irrigation Project In Ta Haen, Cambodia., Irene Rehberger Bescos
USF Tampa Graduate Theses and Dissertations
This study examines potential livelihood outcomes from a recently established irrigation project in Ta Haen, Cambodia, in a sustainable livelihoods framework. The aim of this SAUCE irrigation project is to provide water for drinking and irrigation purposes with the goal of enhancing food by producing an extra rice harvest, the staple, per year. Field research conducted in December 2011 provided qualitative data from questionnaires, key informant interviews, and participant and direct observation, in addition to quantitative data from water quality analysis focusing on arsenic (a potential risk), pH, EC and temperature. Most of the people in the village did not …
Assessment Of A Countywide Stormwater Pond Improvement Project: Impacts Of The Hillsborough County Adopt-A-Pond Program, Anthony Thomas Betts
Assessment Of A Countywide Stormwater Pond Improvement Project: Impacts Of The Hillsborough County Adopt-A-Pond Program, Anthony Thomas Betts
USF Tampa Graduate Theses and Dissertations
Comparative research was conducted to assess the environmental impacts of the Adopt-a-Pond program, which operates throughout Hillsborough County, Florida. The Adopt-a-Pond program was established in 1992 and designed to address nonpoint pollution through outreach and stormwater pond enhancement. However, the program had never been thoroughly and scientifically evaluated. Therefore, assessments of water quality and vegetative characteristics were made at ninety Adopt-a-Pond participants and eleven control ponds to explore the potential impacts of the program on measurable environmental parameters. Statistical analysis of the results failed to demonstrate any statistically significant environmental improvements associated with the Adopt-a-Pond program, and measures of program …
Recent Areal Expansion Of Seagrass Meadows In Tampa Bay, Florida: Real Bay Improvement Or Drought-Induced?, R. R. Lewis Iii, K. D. Haddad, J.O. R. Johansson
Recent Areal Expansion Of Seagrass Meadows In Tampa Bay, Florida: Real Bay Improvement Or Drought-Induced?, R. R. Lewis Iii, K. D. Haddad, J.O. R. Johansson
Reports
Johansson and Lewis have documented improvements in water quality apparently associated with concurrent improvements to sewage treatment, particularly at the City of Tampa's Hookers Point Sewage Treatment Plant. These improvements are at least partially responsible for the significant decreases in chlorophyll a and increase in water clarity documented in Hillsborough Bay and Middle Tampa Bay.
Recent Improvements Of Water Quality And Biological Indicators In The North-Eastern Tampa Bay, City Of Tampa Bay Department Of Sanitary Sewers
Recent Improvements Of Water Quality And Biological Indicators In The North-Eastern Tampa Bay, City Of Tampa Bay Department Of Sanitary Sewers
Reports
Simple analysis of our data clearly indicate that water quality conditions in north-eastern Tampa Bay has improved during our study. Further, there are no indications that this improvement has yet climaxed.
The Effects Of Sewage Pollution Abatement On Environmental Quality In Hillsborough Bay, Florida, Joseph J. Simon, Wen H. Huang
The Effects Of Sewage Pollution Abatement On Environmental Quality In Hillsborough Bay, Florida, Joseph J. Simon, Wen H. Huang
Reports
Owing to the construction of a large municipal advanced (tertiary) waste water treatment (AWT) plant, a unique opportunity exists to study the side effects of removal of a major point source of pollution on the estuarine environment of Hillsborough Bay. The data is still in more or less raw form, with little analyses or interpretation attempted to date.