Tesis sobre el tema "Nutrient pollution of water"
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Butcher, Melissa Rachelle. "Diffuse Nutrient Pollution from Residential Catchments". Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5194.
Texto completoFretwell, Elizabeth A. "The Temporal and Spatial Relationship between Phosphorus and Nitrogen Concentrations, Algal Growth, and Nutrient Sources in the Meduxnekeag River Watershed". Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/FretwellEA2006.pdf.
Texto completoHantsch, Nichole M. "Pattern and process of watershed nutrient dynamics in South Central New York". Diss., Online access via UMI:, 2008.
Buscar texto completoMariola, Matthew J. "Are Markets the Solution to Water Pollution? A Sociological Investigation of Water Quality Trading". Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view.cgi?acc%5Fnum=osu1250015222.
Texto completoSanyi, Hassan H. A. R. "Effects of liming of upland soils on nutrient mobilities in relation to water quality". Thesis, University of Aberdeen, 1989. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU020937.
Texto completoShamblin, Michael D. "Evaluating runoff water quality and ammonia volatilization in three turkey litter application methods". Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2668.
Texto completoTitle from document title page. Document formatted into pages; contains vii, 59 p. : ill. Includes abstract. Includes bibliographical references (p. 43-45).
Klaewtanong, Wimalin. "Nutrient removal in anaerobic sequencing batch reactor combined with anaerobic/aerobic sequencing batch reactor for piggery wastewater treatment". Thesis, University of Newcastle Upon Tyne, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289241.
Texto completoRoss, Sarah Ysabel. "Relationships between hydrology, hydrochemistry and vegetation patterning on Scottish fens". Thesis, University of Stirling, 1999. http://hdl.handle.net/1893/24825.
Texto completoLang, David A. King Ryan Steven. "Effects of nutrient enrichment on alkaline phosphatase activity and nitrogen fixation potential in stream periphyton". Waco, Tex. : Baylor University, 2007. http://hdl.handle.net/2104/5071.
Texto completoChaston, Katherine A. V. "Sediment nutrient bioavailability in a sub-tropical catchment dominated by agriculture : the transition from land to sea /". [St. Lucia, Qld.], 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17118.pdf.
Texto completoGarrett, Keith John. "The role of sediment-associated transport in the nutrient budget of a small Devon catchment". Thesis, University of Exeter, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332295.
Texto completoEdwards, Richard Reginald. "The potential for the use of willow (Salix spp.) in buffer zones for reducing nitrate and atrazine pollution". Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322361.
Texto completoCostanzo, Simon. "Development of indicators for assessing and monitoring nutrient influences in coastal waters /". [St. Lucia, Qld.], 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16274.pdf.
Texto completoHejna, MaryAnne. "Nutrient and Water Quality Analysis of a Lake Erie Headwater Tributary". University of Akron / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=akron1594576287454459.
Texto completoSanchez, Jaime F. "Water and nitrate movement in poultry litter amended soils". [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0004020.
Texto completoFulton, Barry A. Brooks Bryan William. "Assessing interactions between nutrients and toxicity influences of nitrogen and phosphorus on triclosan toxicity to the aquatic macrophyte "lemna gibba" /". Waco, Tex. : Baylor University, 2009. http://hdl.handle.net/2104/5351.
Texto completoKerr, Barry Douglas. "Multiple Regression Equations to Estimate Mean Nutrient Concentrations in Streams of North Central Texas from Landsat Derived Land Use". Thesis, University of North Texas, 1994. https://digital.library.unt.edu/ark:/67531/metadc278778/.
Texto completoWilliams, Marlyse K. "Evaluation of land application of wastewater as a nutrient reduction control strategy in the Chesapeake Bay watershed". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 207 p, 2006. http://wwwlib.umi.com/dissertations/fullcit/1435842.
Texto completoMatheny, Sarah E. "Nutrient analysis of sediment interstitial water of the Prairie Creek Reservoir, Indiana". Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1366301.
Texto completoDepartment of Natural Resources and Environmental Management
Chen, Juan. "Sediment remediation as a technique for restoring eutrophic wetlands and controlling nuisance Chironomidae /". Access via Murdoch University Digital Theses Project, 2004. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20050817.102759.
Texto completoLove, Danielle M. Matthews Robin A. "Effects of salmon-derived nutrients on an artificial stream system /". Online version, 2009. http://content.wwu.edu/cdm4/item_viewer.php?CISOROOT=/theses&CISOPTR=321&CISOBOX=1&REC=9.
Texto completoBrousseau, Jennifer Peterson. "Growth of natural phytoplankton populations of Wilson Bay : a nutrient bioassay approach /". Electronic version, 2005. http://dl.uncw.edu/etd/2005/brousseauj/jenniferbrousseau.html.
Texto completoReuben, Thomas Nyanda. "Nutrient Contribution of the Shallow Unconfined Aquifer to Pineview Reservoir". DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1482.
Texto completoBird, Paul. "Benthic microalgae on the Heron Island reef flat sediment and responses to nutrient enrichment /". [St. Lucia, Qld.], 2005. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19096.pdf.
Texto completoStamatis, Allison Davis Kennedy James H. "Organic carbon dynamics of the Neches River and its floodplain". [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-5118.
Texto completoDelibas, Adem 1980. "A systems approach to managing nutrient pollution in Cape Cod's coastal waters". Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/100359.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (pages 101-104).
Pressing problems are facing the coastal waters of the world due to the growing human activity. Increasing population and economic development around coastal areas have left many embayments throughout the world severely impaired. Excessive nutrient enrichment in water bodies, also known as nutrient pollution, is one of the leading impairments in coastal waters. Algal blooms, dead zones, and fish kills are spreading because of the nutrient pollution. This thesis presents a systems analysis of the nutrient pollution problem in the context of Cape Cod, Massachusetts, where the continuous degradation in coastal waters is considered as one of the greatest threats to the region's environmental and economic future. It proposes a system dynamics model created with a diverse stakeholder team to uncover the underlying system structure that has created the degradation in Cape Cod's coastal waters since 1960s. An important goal of this work was to support the development of a regional water quality management plan on Cape Cod by creating a shared understanding of the nutrient pollution problem across a wide range of stakeholders. Therefore, the proposed model was created with direct contributions of a diverse stakeholder team including representatives from residents, local municipalities, regional authorities, the state government, and the U.S Environmental Protection Agency. In addition to identifying the causal structure of the system through a set of qualitative diagrams, this thesis also proposes a formal simulation model and presents results of an in-depth policy analysis exploring how the degradation in Cape Cod's coastal waters could evolve under different future scenarios. Both the model-building process and the simulation experiments reveal several critical insights, including nonlinearity of the system behavior, delay in the system's response to interventions, and the importance of timely actions.
by Adem Delibaş.
S.M. in Engineering and Management
Ellis, Bonnie Kathleen. "Alternate states in a large oligotrophic lake a retrospective analysis of nutrient loading and food web change /". [Missoula, Mont.] : The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-03292007-094249/unrestricted/ellis06.pdf.
Texto completoMarshall, Michael C. "Hyporheic transformation and retention of salmon-derived nutrients in southeast Alaska streams". Laramie, Wyo. : University of Wyoming, 2006. http://proquest.umi.com/pqdweb?did=1225123041&sid=7&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Texto completoBratt, Anna-Lena. "Managing agricultural nutrient leaching within the EC Water Framework Directive in Sweden". Doctoral thesis, Linköping : Univ, 2003. http://www.ep.liu.se/diss/arts_science/2003/284/index.html.
Texto completoUpton, Alexandra C. "Simulation of local watershed nutrient and sediment delivery to Lake Texoma". Thesis, University of North Texas, 2004. https://digital.library.unt.edu/ark:/67531/metadc4479/.
Texto completoCary, Brian S. "Hypoxia in Hood Canal using modern science and traditional ecological knowledge to enhance our understanding of a degraded ecosystem /". Online pdf file accessible through the World Wide Web, 2007. http://archives.evergreen.edu/masterstheses/Accession86-10MES/Brian%20Cary%20thesis.pdf.
Texto completoSecoges, Joseph Michael. "Nutrient Movement in Streamside Management Zones and Piedmont Streams Following Forest Fertilization". Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/33497.
Texto completoMaster of Science
Wilson, Alan Elliott. "Cyanobacteria-Grazer Interactions: Consequences of toxicity, morphology, and genetic diversity". Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-04072006-125946/.
Texto completoKlausmeier, Christopher, Committee Member ; Montoya, Joseph, Committee Member ; Snell, Terry, Committee Member ; Sarnelle, Orlando, Committee Member ; Hay, Mark, Committee Chair.
Lee, Wen-Hsiung. "The effect of salinity on nutrient release from riverine and tributary estuarine sediments to the Chesapeake Bay under oxidizing and reducing conditions". Thesis, Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/80053.
Texto completoMaster of Science
Langlois, Jacques. "Nutrient and sediment movements from soil to surface water in a forested watershed and two agricultural fields". Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19751.
Texto completoSaltos, Theodore Nicholas. "Assessment of Agricultural Nutrient Pollution to Lake Erie from the Maumee and Sandusky Watersheds: Analyzing Trends in Hydrology, Nutrient Loading, and Policy Using a Statistical Approach". The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1531928517302473.
Texto completoWang, Lei. "Developing an integrated catchment-scale modelling approach for supporting the sustainable management of water nutrient pollution from diffuse agricultural sources". Thesis, Cardiff University, 2008. http://orca.cf.ac.uk/54893/.
Texto completoXu, Kejun. "Total suspended solids, discharge, conductivity, and nutrients in three watersheds of the Upper White River, IN". Virtual Press, 2004. http://liblink.bsu.edu/uhtbin/catkey/1307378.
Texto completoDepartment of Natural Resources and Environmental Management
Fiallos, Celi Diana E. "Water quality assessment of Prairie Creek Reservoir in Delaware County, Indiana". Virtual Press, 2008. http://liblink.bsu.edu/uhtbin/catkey/1391474.
Texto completoDepartment of Natural Resources and Environmental Management
Kelly, Joann. "The effect of nutrient limitation on the growth and toxicity of the dinoflagellate Gyrodinium instriatum". View electronic thesis (PDF), 2009. http://dl.uncw.edu/etd/2009-3/kellyj/joannkelly.pdf.
Texto completoDobrowolski, Edward G. "Assessment of water quality changes resulting from municipal sewer installation in the Killbuck-Mud Creek Watershed, Indiana". Muncie, Ind. : Ball State University, 2008. http://cardinalscholar.bsu.edu/725.
Texto completoHargiss, Michael John. "Incorporating Adaptive Management and Translational Ecology into the North Dakota Total Maximum Daily Load Program: A Case Study of the Fordville Dam Nutrient TMDL". Master's thesis, North Dakota State University, 2012. http://hdl.handle.net/10365/21663.
Texto completoMeinikmann, Karin. "Groundwater-Surface Water Interactions in a Eutrophic Lake – Impacts of Lacustrine Groundwater Discharge on Water and Nutrient Budgets". Doctoral thesis, Humboldt-Universität zu Berlin, 2017. http://dx.doi.org/10.18452/18203.
Texto completoThe present work is a collection of studies on lacustrine groundwater discharge (LGD) and groundwater-borne phosphorus (P) loads. For a number of reasons, groundwater exfiltration (i.e., LGD) is often not considered in water and nutrient budgets of lakes. This is also and especially true for P which was often regarded to be immobile in groundwater until recently. Two chapters review the scientific literature regarding the impacts of groundwater on hydrology and nutrient budgets of lakes, respectively. They present mechanisms and processes of LGD as well as techniques and methods to measure LGD and related nutrient transports. Moreover, numbers of LGD volumes and loads reported in literature are presented. The core of the present work is represented by two case studies dealing with the quantification of P loads from LGD to a lake in Germany. A combination of different methods is applied to overcome the problem of quantitative large scale LGD determination without losing local spatial information. P concentrations in groundwater and LGD are investigated by detailed spatial water sampling. The results reveal that P is actually present in concentrations far above natural background concentrations in the urban groundwater. LGD-derived P loads account for more than 50% of the overall external P loads to the lake and by that contribute significantly to lake eutrophication. Three further studies are devoted to the development and improvement of approaches to determine LGD. Critical reviews of the above mentioned studies reveal the need for further research in order to standardize and improve methods for LGD and mass load determination. It is found that the appropriate method for LGD determination depends on the spatial scale of interest. The identification of P introduced by LGD as a main driver of lake eutrophication is an important finding which should encourage scientists, policy makers, and lake managers to consider groundwater as a relevant P source for lakes.
Weng, Weizhe. "Essays on Water Policy and Coupled Human and Natural Systems". Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/102031.
Texto completoDoctor of Philosophy
Duthie, Troy y mikewood@deakin edu au. "Nutrients in Pirron Yallock Creek, southwestern Victoria : paleolimnological and management considerations". Deakin University. School of Ecology and Environment, 2000. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20060706.124148.
Texto completoMansor, Maria Teresa Castilho. "Potencial de poluição de aguas superficiais por fontes não pontuais de fosforo na Bacia hidrografica do Ribeirão do Pinhal, Limeira- SP". [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257255.
Texto completoTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
Made available in DSpace on 2018-08-04T08:27:27Z (GMT). No. of bitstreams: 1 Mansor_MariaTeresaCastilho_D.pdf: 2529546 bytes, checksum: 5e7bcdd25d9104de1649f7fade2168ac (MD5) Previous issue date: 2005
Resumo: Em áreas rurais onde há intensa atividade agrícola, a eutrofização de corpos de água pode ser acelerada pelo influxo de nutrientes, provenientes de fertilizantes, transportados por escoamento superficial. A eutrofização pode provocar mudanças indesejáveis na estrutura e funções do ecossistema, bem como na qualidade da água destinada ao abastecimento. O controle dos níveis de P nas águas superficiais é tido como a melhor maneira de minimizar a eutrofização, uma vez que o P é identificado como um nutriente limitante para o crescimento de algas. As águas da bacia do rio Piracicaba recebem grande aporte de efluentes domésticos e industriais pontuais, bem como grande aporte de efluentes agrícolas difusos, tendo sido documentado aí um elevado grau de eutrofização. Uma avaliação preliminar das contribuições difusas de nutrientes às águas superficiais da bacia hidrográfica do rio Jaguari - formador do rio Piracicaba - feita a partir de dados oficiais em uma área de estudo de 3394 Km2, mostrou que 68,2% da carga total anual de Ntotal e 77,3% da carga total anual de Ptotal foram transportados nos meses de chuva. Ao se estimar a razão entre a carga média anual de origem rural (difusa) e urbana (pontual), obteve-se o valor de 1,3 para o Ntotal e 2,6 para o Ptotal; os coeficientes de exportação a partir da área rural foram estimados em 2,3 Kg Ntotal.ha-I.ano-l e 0,4 Kg Ptotal.ha-l.ano-l. A área de drenagem da bacia do ribeirão do Pinhal - afluente do rio Jaguari e manancial de abastecimento de Limeira, SP - foi o foco principal deste estudo, ocorrido entre fevereiro de 2003 e fevereiro de 2004. Estimou-se, para uma área de 301,4 Km2 de ocupação majoritariamente agrícola, a quantidade de P aplicada ao solo como fertilizante, obtendo-se um total de 820 ton.anoo1, dos quais inferiu-se que 23% foram exportados pela biomassa. Monitorou-se, no mesmo período, as concentrações de Ptotal e SStotais em cinco pontos da bacia do ribeirão do Pinhal, objetivando a estimativa de fluxos. As cargas anuais de Ptotal e SStotais obtidas na entrada do reservatório do Tatu foram iguais a 5,7 e 2160 ton.ano-I, respectivamente, sendo que 67,5% do Ptotal e 84,5% dos SStotais foram transportados no período chuvoso. Os coeficientes de exportação obtidos na entrada do reservatório foram iguais a 0,2 KgPtotal.haol.anool e 7,4 tonSStotaiS.Km-2.ano-l. Ao se inferir sobre as cargas difusas de Ptotal transportadas por escoamento superficial pelo ribeirão do Pinhal, obteve-se uma razão de 0,6 entre a carga anual de origem difusa e aquela pontual, apontando a importância desta última na bacia. Por fim, fez-se um levantamento limnológico do reservatório do Tatu, e observou-se que o IET referente ao Ptotal e à clorofila a indicou estado eutrófico na cabeceira e barragem; entretanto, é provável que a alta taxa de descarga esteja limitando a proliferação de algas no reservatório. De modo geral, verificou-se preliminarmente a importância da poluição difusa de Ptotab de origem rural, na degradação das águas superficiais da bacia do rio Jaguari. Por outro lado, focando na bacia do ribeirão do Pinhal, concluiu-se que as altas concentrações de Ptotal aí obtidas foram influenciadas pela atividade industrial e ocupação humana, influência esta que se sobrepôs àquela do arraste de partículas causado pelo escoamento superficial decorrente das precipitações
Abstract: Intensive agricultural activities are known to cause anthropogenic inputs ofnutrients to surface waters in rural areas. The nutrient enrichment of water bodies, or eutrophication, can lead to highly undesirable changes in ecosystem structure and function, as well as in water quality for human consumption. It is known that nutrient loading restriction - specially the limiting nutrient phosphorus - is the essential comerstone of aquatic eutrophication controI. In a preliminary study, official water quality and flow data from Jaguari River were used to assess the diffuse loads of nutrients from rural areas into surface waters. Results showed that, in average, 68.2% of the TN annualloads and 77.3% of the TP annualloads were transported through a 3394 Km2 area during the raining season. The annual diffuse loads obtained coming primarily from rural sources - were equivalent to 55.1% and 69.4% ofthe total annual loads of TN and TP transported through the sub-basin, respectively. The mean export coefficients from diffuse loads were equal to 2.3 Kg TN.ha-1.year-1 and 0.4 Kg TP.ha-'.year-1. The main part of this study was realized at the Ribeirão do Pinhal - a Jaguari River affluent from February 2003 to February 2004. The annual phosphorus load applied as fertilizer to an area of301.4 Km2 ofthe ribeirão do Pinhal watershed was estimated to be 820 ton.year-', and 23% of it was calculated to be exported by the biomass of the agricultural fields. These results were based on the soil use and occupation of the area, mainly rural, producing basically sugarcane and citrus. The field sampling of Ribeirão do Pinhal superficial waters was done twice a month, in five locations at the watershed. Samples were analyzed for TP and TSS; the totalloads obtained were equal to 5.7 e 2160 ton.year-', respectively, at the entrance ofTatu reservoir; 67.5% of TP and 84.5% of TSS were transported during the raining season (October-March). The export coefficients obtained were equal to 7.4 ton TSS.Km-2.year-1 and 0.2 Kg TP.ha-1.year"'. A limnological profile of the Tatu reservoir was determined through field sampling in three locations on both dry and wet periods; results showed a eutrophic state at the entrance of the reservoir as well as at the damo Yet, the flushing rate is the possible limiting factor for the occurrence of eutrophication at the reservoir. In general, the importance of diffuse pollution, originally from rural areas, was verified at the Jaguari River watershed. On the other hand, at the Ribeirão do Pinhal watershed, the high TP concentrations observed were most1y influenced by the industrial and human activities occurring in the area
Doutorado
Agua e Solo
Doutor em Engenharia Agrícola
Lakish, Benjamin. "Nutrients and chlorophyll dynamics in Fort Cobb Reservoir". Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4956.
Texto completoThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on March 31, 2008) Includes bibliographical references.
Astill, Helen Lee. "The role of benthic macroalgae in sediment-water nutrient cycling in the Swan-Canning estuarine system, Western Australia". Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2000. https://ro.ecu.edu.au/theses/1344.
Texto completoFarthing, Tessa. "Impact of a Forested State Park on Nutrient Concentrations in an Agriculturally Dominated Watershed in Southwest Ohio". Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1626999681372348.
Texto completoPenick, Mary Douglas. "Algal Biomass Accrual in Relation to Nutrient Availability along a Longitudinal Gradient in the Upper Green River, Kentucky". TopSCHOLAR®, 2010. http://digitalcommons.wku.edu/theses/190.
Texto completo