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Tesis sobre el tema "Nutrient losses"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Liu, Yingmei. "Effective Modeling of Nutrient Losses and Nutrient Management Practices in an Agricultural and Urbanizing Watershed." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/40398.

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The Lake Manassas Watershed is a 189 km2 basin located in the Northern Virginia suburbs of Washington, DC. Lake Manassas is a major waterbody in the watershed and serves as a drinking water source for the City of Manassas. Lake Manassas is experiencing eutrophication due to nutrient loads associated with agricultural activities and urban development in its drainage areas. Two watershed model applications using HSPF, and one receiving water quality model application using CE-QUAL-W2, were linked to simulate Lake Manassas as well as its drainage areas: the Upper Broad Run (126.21 km2) and Middle

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2

Habersack, Mathew James. "Evaluation of Nutrient and Pathogen Losses From Various Poultry Litter Storage Methods." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34373.

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Considerable concern has developed over the possible pollution from poultry litter storage methods. This study was conducted to evaluate three different storage scenarios; covered stockpiles, uncovered stockpiles, and litter sheds. The stockpiles were monitored over two rainfall simulation events, in both the Ridge and Valley and the Piedmont physiographic provinces, with both surface and subsurface flows analyzed. An observational study, where subsurface water was sampled for a nine-month period was conducted using six litter sheds, three in each of the above provinces. Samples were analy

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3

Hollinger, Eric, of Western Sydney Hawkesbury University, and Faculty of Environmental Management and Agriculture. "Links between management of a market garden and stormwater losses of sediment, nitrogen and phosphorus." THESIS_FEMA_XXX_Hollinger_E.xml, 1998. http://handle.uws.edu.au:8081/1959.7/306.

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Market gardening is commonly characterised by intensive cultivation, high inputs of both organic and inorganic fertilisers, chemical over/misuse, frequent irrigation, and a low degree of soil cover. While market gardening is readily perceived to be detrimental to waterways, there is remarkably little data to quantify the impacts. Soil and nutrient loss in stormwater runoff varies with soil type, climate and production systems. Therefore local data are needed to determine the impact of market gardening on the Hawkesbury-Nepean. This should lead to a better understanding of how land management i

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4

Loper, Shawna. "Effects of compost and tillage on soils and nutrient losses in a simulated residential landscape." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0041298.

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5

Griffith, Keegan. "Impact of a Winter Rye Cover Crop on Edge-of-Field Nutrient Losses and Corn Silage Production." ScholarWorks @ UVM, 2019. https://scholarworks.uvm.edu/graddis/1011.

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Cover crops have the potential to reduce environmental impacts of corn production. The objective of this study was to quantify differences in nitrogen (N) and phosphorus (P) loading between corn plots with or without a winter rye cover crop (Secale cerale). Four field plots (30 x 46 m) in Chazy, NY with edge-of-field monitoring were used for the study. Two plots were randomly assigned a rye cover crop treatment and planted with a grain drill at a rate of 112 kg ha-1 after corn silage harvest in 2015 and 2016. Continuous water flows were monitored from surface runoff and tile drain hydrologic p

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6

Webber, David Franklin. "Vegetative filter strip buffer effects on runoff, sediment, and nutrient losses from a grazing and windrow composting site." [Ames, Iowa : Iowa State University], 2007.

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7

Formaglio, Greta [Verfasser]. "The effect of reduced management intensity on soil nutrient dynamics in a large-scale oil palm plantation: soil nitrogen cycle, asymbiotic nitrogen fixation and nutrient leaching losses / Greta Formaglio." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/121533852X/34.

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8

Nummer, Stephanie Ann. "Assessing the Effects of Conservation Practices and Fertilizer Application Methods on Nitrogen and Phosphorus Losses from Farm Fields – A Meta Analysis." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1470394645.

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9

Ciccaglione, Julia Serafina. "Characterization of soil erosion processes and nutrient losses associated with previously forested areas, the Colonarie River Watershed, St. Vincent, West Indies." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0026/MQ31337.pdf.

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10

Kugbe, Joseph [Verfasser]. "Spatio-temporal dynamics of bush-fire nutrient losses and atmospheric depositional gains across the Northern savanna region of Ghana / Joseph Kugbe." Bonn : Universitäts- und Landesbibliothek Bonn, 2012. http://d-nb.info/104305636X/34.

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11

Thomas, A. D. "The effects of fire and different logging practices on nutrient losses in overland flow from eucalyptus and pine forests, northern Portugal." Thesis, Swansea University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.639187.

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This thesis presents data on nutrient losses in overland flow and eroded sediment after fire in <I>Eucalyptus globulus</I> and <I>Pinus pinaster</I> forests on schist bedrock in the Águeda Basin, northern Portugal. The principal aims were: i) to determine the effects of fire on nutrients in overland flow and eroded sediment during the immediate post-fire period, ii) to evaluate the effects of various post-fire logging techniques on nutrient losses, and iii) to examine the causes of temporal and spatial variability in overland flow and eroded sediment nutrient losses. A total of 11, 8 x 2m boun

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12

Bernardoni, E. "FIELD-SCALE ASSESSMENT OF NUTRIENT AND SOIL LOSSES DURING SURFACE RUNOFF EVENTS, IN AN OLTREPÒ PAVESE (SOUTHERN LOMBARDY ¿ ITALIAN REGION) VINEYARD HILL." Doctoral thesis, Università degli Studi di Milano, 2013. http://hdl.handle.net/2434/218169.

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The aim of my Ph.D. work was to investigate sediment transport and nutrient content in runoff water from an agricultural system. The study was carried out in a representative sites of the Oltrepò Pavese, in Lombardy region (northern Italy) in a vineyard equipped with instruments for measuring volume and rate of runoff and collecting samples to determine the amount of soil loss related to each rainfall event. The site was equipped with a weather station, which included a recording rain gauge. The analysis was done under natural rainfall condition during the period December 2008 - December 2

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13

Spence, Porche' La Phyl. "Effects of Lawn Maintenance on Nutrient Losses via Overland Flow and the Comparison of Nitrous Oxide Flux from Three Residential Landscapes A Case Study." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-11032009-142926/.

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Residential lawn management practices (mowing, fertilizer, irrigation, reseeding, and aeration) result in aesthetically appealing landscapes, but can result in nutrient losses via overland flow or gaseous losses to the atmosphere (e.g. nitrous oxide - N2O). The overall objective of this study was to determine the effect of lawn management on nutrient losses from residential lawns. The specific objectives were: modify a passive sampling system to determine nutrient loads due to overland flow from lawns; evaluate differences in overland flow frequency, volumes, and nutrient losses during rainfal

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14

Kalvelage, Tim Verfasser], Marcel M. M. [Akademischer Betreuer] Kuypers, and Hermann Werner [Akademischer Betreuer] [Bange. "Nitrogen Losses and Nutrient Regeneration in Oxygen Minimum Zones / Tim Kalvelage. Gutachter: Marcel M. M. Kuypers ; Hermann W. Bange. Betreuer: Marcel M. M. Kuypers." Bremen : Staats- und Universitätsbibliothek Bremen, 2012. http://d-nb.info/1071994158/34.

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15

Göbel, Leonie Verfasser], Johannes [Akademischer Betreuer] [Isselstein, Daniela [Gutachter] Sauer, and Rainer Georg [Gutachter] Jörgensen. "Nutrient Response Efficiencies, Leaching Losses and Soil-N Cycling in Temperate Grassland Agroforestry and Open Grassland Management Systems / Leonie Göbel ; Gutachter: Daniela Sauer, Rainer Georg Jörgensen ; Betreuer: Johannes Isselstein." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1213096294/34.

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16

Göbel, Leonie [Verfasser], Johannes [Akademischer Betreuer] Isselstein, Daniela [Gutachter] Sauer, and Rainer Georg [Gutachter] Jörgensen. "Nutrient Response Efficiencies, Leaching Losses and Soil-N Cycling in Temperate Grassland Agroforestry and Open Grassland Management Systems / Leonie Göbel ; Gutachter: Daniela Sauer, Rainer Georg Jörgensen ; Betreuer: Johannes Isselstein." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://d-nb.info/1213096294/34.

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17

Fischer, Peter. "The degree of phosphorus saturation of agricultural soils in Brazil and Germany: New approaches for risk assessment of diffuse phosphorus losses and soil phosphorus management." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19589.

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Diffuse Phosphor (P)-Austräge aus der Landwirtschaft tragen zur Gewässereutrophierung bei. Der Phosphorsättigungsgrad (DPS) ist ein etablierter Parameter, um das P-Austragsrisiko aus Böden zu erfassen. Ein bodentypunabhängiger Ansatz, der die Abschätzung des DPS durch eine einfache Standardmethode wasserlöslichen P (WSP) ermöglicht (WSP-DPS-Ansatz), wurde an europäischen Böden entwickelt. In der Dissertation wurde dieser Ansatz erstmalig: i) an tropischen Böden getestet und ii) dazu verwendet P-Austragsrisiken von Boden-P-Monitoringdaten und von landwirtschaftlichen Institutionen empfohlenen P

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18

ROCHA, JUNIOR P. R. "Impact of soil management on water, sediments and nutrients losses: field, laboratory and modeling experiments." Universidade Federal do Espírito Santo, 2016. http://repositorio.ufes.br/handle/10/4892.

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Made available in DSpace on 2016-08-29T15:36:37Z (GMT). No. of bitstreams: 1 tese_7186_Paulo Roberto da Rocha Junior.pdf: 3611101 bytes, checksum: 0a465332d65f9153443d580f3af4db09 (MD5) Previous issue date: 2016-02-22<br>Embora muito esforço venha sendo realizado, os estudos visando mitigar os efeitos da erosão ainda são insuficientes. Neste contexto a presente tese buscou estudar os efeitos do manejo do solo em dois grandes países produtores agrícolas, Brasil e Estados Unidos, focando nas particularidades encontradas em cada país. Os Capítulos 1 e 2 da presente tese tiveram como objetivo es

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19

Schwab, Elizabeth Rose. "Maumee River Watershed Farmers’ Perceptions of Nutrient Loss Risk." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587662279052842.

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20

Skoog, Peter, and Henrik Bodin-Sköld. "Nutrients and runoff in a small catchment during spring 2010." Thesis, Linköping University, Linköping University, Department of Water and Environmental Studies, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-57611.

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<p>Eutrophication is an increasing problem in the Baltic Sea and is caused by an excess of nutrients in the water which are primarily transported with the runoff from cultivated land. The peninsula Vikbolandet in Östergötland is dominated by arable land and has stream outflows to the bays of Bråviken and Slätbaken. In this study five streams of Vikbolandet have been sampled during the spring flood period with the aim of connecting concentrations of nutrients in the streams with turbidity and runoff in the catchment. This analysis has then been related to the land use in the small catchment of

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21

Fontanive, Maicon. "Erosão hídrica em solo cultivado com aplicação de dejeto líquido de suínos." Universidade do Estado de Santa Catarina, 2016. http://tede.udesc.br/handle/handle/2470.

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Submitted by Claudia Rocha (claudia.rocha@udesc.br) on 2018-03-07T14:38:13Z No. of bitstreams: 1 PGCS16MA152.pdf: 1026343 bytes, checksum: 9aece6d47b63a39320a6d4385220f021 (MD5)<br>Made available in DSpace on 2018-03-07T14:38:13Z (GMT). No. of bitstreams: 1 PGCS16MA152.pdf: 1026343 bytes, checksum: 9aece6d47b63a39320a6d4385220f021 (MD5) Previous issue date: 2016-09-30<br>Many of the existing swine production systems in southern Brazil, provide high production of pig slurry. This situation leads to management problems, storage, distribution and environmental pollution caused by the improperly

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22

Muller, Fernando. "Volatilização de amônia com o uso de dejetos de suínos com pH modificado." Universidade Estadual do Oeste do Paraná, 2018. http://tede.unioeste.br/handle/tede/3950.

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Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2018-09-26T13:43:20Z No. of bitstreams: 2 Fernando_Muller_2018.pdf: 512041 bytes, checksum: 2ff86626a282d8b0ea9a5d679b8fd5a4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in DSpace on 2018-09-26T13:43:20Z (GMT). No. of bitstreams: 2 Fernando_Muller_2018.pdf: 512041 bytes, checksum: 2ff86626a282d8b0ea9a5d679b8fd5a4 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-03-27<br>In western Paraná the production of pigs in feedlot syste

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23

Hobara, Satoru. "Biogeochemical consequences of biotic change in forest ecosystems : implications for nutrient loss." Kyoto University, 2002. http://hdl.handle.net/2433/149897.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第9605号<br>農博第1233号<br>新制||農||841(附属図書館)<br>学位論文||H14||N3637(農学部図書室)<br>UT51-2002-G363<br>京都大学大学院農学研究科森林科学専攻<br>(主査)教授菊澤喜八郎, 教授小﨑隆, 教授武田博清<br>学位規則第4条第1項該当

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24

Pessotto, Patrícia Pretto. "DEJETOS LÍQUIDOS DE SUÍNOS: ESCOAMENTO SUPERFICIAL, ALTERAÇÕES NOS ATRIBUTOS QUÍMICOS E FÍSICOS DO SOLO E PRODUTIVIDADE DO FEIJÃO." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/4949.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The use of pig slurry as a source of nutrients for crops is a common practice in regions of pig production, however there is a growing concern about the risk of environmental contamination of soil and water as the continuous and excessive use of such waste. The purpose of this study was to evaluate losses of water, sediment and nutrients (N, P and Cu) through surface runoff and changes in chemical and physical attributes of a Red Oxisol under no-tillage system with continuous application of increasing doses of liquid pig manure (DL

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25

Carneiro, Leocir José. "Compostagem de resíduos agroindustriais: revolvimento, inoculação e condições ambientais." Universidade Estadual do Oeste do Parana, 2012. http://tede.unioeste.br:8080/tede/handle/tede/397.

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Made available in DSpace on 2017-05-12T14:48:31Z (GMT). No. of bitstreams: 1 Leocir.pdf: 6158165 bytes, checksum: dbfdb8042a4030d3241c3f71a79f1525 (MD5) Previous issue date: 2012-02-21<br>This trial aimed at testing the turning, cover courtyard and inoculation with a Commercial Biological Product (CBP) at the composite period and the produced compost quality using agro-industrial residues. The experiment was carried out at the Experimental Center of Agricultural Engineering (NEEA), at Western Paraná State University (UNIOESTE). The following wastes were used during the composting process fro

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26

Beasley, Jeffrey S. "Nitrogen Regime Influence on Nutrient and Sediment Surface Runoff During Vegetative Establishment of Bermudagrass." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/31900.

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Bermudagrass (Cynodon dactylon (L.) Pers.) is a popular turfgrass used throughout the Southeast. Bermudagrass is established primarily as sprigs on large acreage sites. Currently, the industry standard practice (ISP) of fertilization during bermudagrass sprig establishment is 48.8 kg N ha-1 wk-1. This fertilizer rate can be excessive on morphologically immature sprigs in the initial weeks of establishment, thus making the possibility of offsite surface runoff N events more likely. Two experiments were conducted in 2000 and 2001 where sprigs were established at 2, 4, 6, 8, and 10 weeks pr

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27

Soracco, Kelly L. "Seasonal differences in nutrient intake, supplement use, and eating behaviors of high school wrestlers." Virtual Press, 1999. http://liblink.bsu.edu/uhtbin/catkey/1154780.

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The purpose of this study was to examine weight loss methods and to determine if seasonal differences existed in energy and nutrient intakes, supplement use and eating behaviors of high school wrestlers. Weight loss history, food and activity records, supplement use and knowledge and bulimic behavior data were collected from twenty wrestlers during the 1998-99 wrestling season and from eleven wrestlers 3 months post wrestling season.This study found that wrestlers practiced extreme weight control behaviors including fasting, food and fluid restriction resulting in inadequate nutrient intakes.

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28

Santos, Ana Carolina Nascimento. "Análie do custo da erosão do solo na microbacia hidrográfica do Ceveiro." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/11/11143/tde-06102014-155551/.

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A erosão acelerada do solo constitui um processo importante de degradação dos solos e da água e no entanto as consequências econômicas dessas perdas são ainda pouco conhecidas. Este estudo objetivou analisar o emprego de um SIG na estimativa do valor monetário da perda de solo nas áreas de produção de cana-de-açúcar e pastagem na Microbacia Hidrográfica do Ceveiro (MHC). Para a realização da modelagem da erosão laminar foi utilizado a Equação Universal de Perdas de Solo (USLE) e para a estimativa do custo o método Custo de Reposição dos Nutrientes (CRN). A estimativa de perda de solo por erosã

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29

Regnault, Timothy Robert Hume, of Western Sydney Hawkesbury University, Faculty of Agriculture and Horticulture, and School of Agriculture and Rural Development. "Orchestrated partitioning of maternal nutrients during ovine pregnancy." THESIS_FAH_ARD_Regnault_T.xml, 1997. http://handle.uws.edu.au:8081/1959.7/15.

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Ovine placental lactogen (oPL) is postulated to be involved in the repartitioning of maternal nutrients during pregnancy, through its effect on insulin metabolism. Ovine pancreatic insulin responses to exogenous glucose are depressed during pregnancy and this depression becomes more pronounced as gestation advances. In addition, under the hormonal environment of rising oPL and growth hormone (oGH) concentrations, maternal whole body glucose irreversible loss (GIL) increases. The percentage of GIL accounted for by uterine glucose uptake also increases with advancing gestation and increasing lit

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30

Prazeres, Stella da Silva. "Respostas biomÃtricas e fisiolÃgicas de duas cultivares de feijÃo-de-corda sob irrigaÃÃo com Ãgua salina e potÃssio no solo." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9452.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>A intensidade do estresse causado pela salinidade nas culturas irÃ depender principalmente, do nÃvel de tolerÃncia da espÃcie vegetal e das formas de manejo utilizadas. O feijÃo-de-corda Ã uma cultura de importÃncia econÃmica, no entanto apresenta sensibilidade ao estresse salino. Dessa forma, objetivou-se avaliar as respostas biomÃtricas, fisiolÃgicas e produtivas de duas cultivares de feijÃo-de-corda, submetidas Ã irrigaÃÃo com Ãguas salinas e doses de potÃssio. O experimento foi conduzido em ambiente protegido na Ãrea experime

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31

Acharya, Govind Prasad. "The development of interventions to minimise soil and nutrients losses in the bari land of the middle hills and Western Development Region of Nepal." Thesis, Bangor University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273686.

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Grainger, Tess Nahanni. "Winners and losers in a changing climate : causes and consequences of long-term nutrient enrichment in a boreal forest understory." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/43628.

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Nitrogen levels are predicted to rise dramatically in the coming decades as a result of increased deposition from the burning of fossil fuels and the large-scale conversion of nitrogen into a useable form for agriculture. Plant communities react strongly to increases in soil nitrogen, particularly in northern ecosystems where nitrogen levels are naturally very low. An experiment in northern Canada that began in 1990 has been investigating the effects of long-term nutrient enrichment (fertilizer addition) and release from herbivory (fencing). After 22 years of treatment, plant community composi

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33

Meneses, Bruno Miguel do Carmo Santana. "Influência de um fogo florestal na qualidade da água da Ribeira de São Domingos localizada na Região Oeste de Portugal." Master's thesis, ISA, 2013. http://hdl.handle.net/10400.5/6489.

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Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia<br>Forest fires are responsible for several environmental problems, especially for polluting watercourses. In this dissertation we intend to evaluate the changes occurring in the physical and chemical constitution of water of São Domingos stream (crossing the municipalities of Lourinhã and Peniche, Portugal), in particular pH and nutrient content variation, related to surface runoff from the burnt area of the Cezaredas plateau, where a forest fire occurred at July 19th, 2012. Thus, water samples were collected in three points

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Regnault, Timothy Robert Hume. "Orchestrated partitioning of maternal nutrients during ovine pregnancy." Thesis, View thesis View thesis, 1997. http://handle.uws.edu.au:8081/1959.7/15.

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Ovine placental lactogen (oPL) is postulated to be involved in the repartitioning of maternal nutrients during pregnancy, through its effect on insulin metabolism. Ovine pancreatic insulin responses to exogenous glucose are depressed during pregnancy and this depression becomes more pronounced as gestation advances. In addition, under the hormonal environment of rising oPL and growth hormone (oGH) concentrations, maternal whole body glucose irreversible loss (GIL) increases. The percentage of GIL accounted for by uterine glucose uptake also increases with advancing gestation and increasing lit

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35

Nilsson, Bengt. "Extraction of logging residues for bioenergy : effects of operational methods on fuel quality and biomass losses in the forest." Doctoral thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-58307.

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Wood products play a key role in the transformation to a more sustainable society based on renewable bio-based resources, together with the positive effects on climate mitigation by replacing fossil fuels. However, to increase the use of forest fuel in practice it is important to understand the effects of handling and storage on its quality and removal of nutrients from the forest. This thesis addresses these effects with special focus on a comparative evaluation of the traditional dried-stacked with “new” and to some extent more controversial fresh-stacked methods for extraction of logging re

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36

Challinor, Paul Francis. "An evaluation of pumice, unloaded clinoptilolite and nutrient-loaded clinoptilolite zeolites, as plant growth substrates in the intensive production of long season glasshouse crops." Thesis, University of Plymouth, 2003. http://hdl.handle.net/10026.1/2625.

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Annual losses of nitrogen from existing glasshouse crop production substrate systems could be as high as 600 kg ha 1, using an average of 30% drainwater containing a nitrate-nitrogen concentration of 200 mg 1". The use of nutrient recirculation systems such as nutrient film technique (NFT) helped to reduce nutrient losses to the environment but the commercial area of NFT has decreasedd ue to high initial capital costs, concernso ver diseaset ransmissionw ithin the system and an absence of recent research and development. Most substrate systems rely on the provision of liquid nutrient feed

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37

Ferreira, Raquel Sofia e. Vasconcelos. "Wildfire effects on soil nutrients stocks and exports by overland flow." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/16825.

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Doutoramento em Ciências e Engenharia do Ambiente<br>O objetivo deste trabalho foi realizar uma avaliação de perdas de nutrientes após incêndio por escorrência superficial, à escala de microparcela e à escala de encosta (embora de forma limitada) numa área recentemente queimada da região Mediterrânica, fornecendo estimativas das exportações de catiões, azoto e fósforo, num enquadramento paisagístico como este propenso ao fogo. Representa um importante complemento para o até agora modesto número de estudos sobre as perdas de nutrientes pós-fogo por escorrência superficial, realizado na

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Walker, Beau Jensen. "The Interaction of Aeolian and Fluvial Processes in Dry Washes on the Colorado Plateau, USA." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/5597.

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In the past decade there has been a call for integrated studies that examine the interaction of fluvial and aeolian processes (Belnap et al., 2011; Bullard and Livingstone, 2002). In this study, we examined the role of land-use, weather, and soil type on the flux of aeolian material into dry washes on the Colorado Plateau in central Utah, USA, and western Colorado, USA. Our goal was to quantify the impact of individual deposition and erosion events by correlating weather and land-use data with a combination of measurement methods including dust collection via dust traps, GPS surveying, and cl

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39

Andrews, Aaron A. "Phosphorus loss with surface runoff as affected by bioenergy-based residue and nutrient management systems for an Iowa loam soil." [Ames, Iowa : Iowa State University], 2010. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1475914.

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40

SLOAN, MELISSA ANN. "Designing and Pilot Testing a Database to Properly Track Nutrient Consumption in Overweight, Postpartum Women and Infants Enrolled in a Dietary Intervention Study." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1218512743.

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41

Peccatiello, Kathy Louise. "The effect of a comprehensive weight reduction program on blood variables, body composition, and nutrient intake in obese black women." Thesis, Virginia Tech, 1987. http://hdl.handle.net/10919/43889.

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The effect of comprehensive weight reduction program on selected blood parameters, body composition, and nutrient intake was investigated in 56 obese black women, 22 to 51 years old. Subjects attended nutrition and behavior modification classes once per week for 3 months. Twenty subjects participated in a low impact aerobics programs 3 times per week for 3 months. A 3.8 kg average weight loss was observed. A 2.6% significant reduction in body fat (BF) was observed in the exercise group. Total cholesterol (TC) and low-density lipoprotein-cholesterol (LDL-C) fell significantly from 198 t

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42

Pellegrini, André. "Sistemas de cultivo da cultura do fumo com ênfase às práticas de manejo e conservação do solo." Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/5513.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Soil management systems with minimum tillage and mulch are predominant in agriculture of Southern of Brazil. No-tillage for tobacco crop is not common and restricted to isolated places and only for some farmers that, through empiric tests and adaptation of equipments, search for soil preservation and increased yield. The objective of this work was study the main soil management systems for tobacco crop and possibilities of changing the traditional system of tobacco cropping, with emphasis on practices of soil management and conserv

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43

Ferris, Conrad Peter Wesley. "Studies on the effects of ensiling grass with absorbent materials on nutrient loss during ensilage and on feed utilisation by dairy cows." Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334527.

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Cipolat, Gotet Claudio. "Genetic and phenotypic variability of milk coagulation properties, cheese yield, nutrients recoveries and cheese sensory properties assessed on individual milk of Brown Swiss cows." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423109.

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Milk cheese-making ability have received great interest from the dairy industry in the worldwide increasing of the amount of milk used for cheese production. In recent years, scientific research was mainly occupied to identify and study phenotypic and genetic variability of milk coagulation properties. The relationship between these traits and cheese yield is not entirely clear. Cheese yield, milk nutrients recoveries in the curd and whey losses represent indices that defines the efficiency of the cheese-making process and are used as tools for economic control in the dairies. To our knowledge

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45

Pugliesi, Adriane Cristine Vasconcelos. "Valoração economica pelo metodo custo de reposição do efeito da erosão em sistemas de produção agricola." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257010.

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Orientador: Mara de Andrade Marinho Weill<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola<br>Made available in DSpace on 2018-08-11T14:26:30Z (GMT). No. of bitstreams: 1 Pugliesi_AdrianeCristineVasconcelos_M.pdf: 1278525 bytes, checksum: 13ca2c4b187494af68b82af01840563f (MD5) Previous issue date: 2007<br>Resumo: A erosão acelerada do solo constitui um processo importante de degradação da qualidade das terras agrícolas e do ambiente circundante. A avaliação dos efeitos da erosão em sistemas de produção agrícola, com ênfase nos aspectos econômico

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Wasowska, Zuzanna. "The Fate of Nitrogen and Phosphorus from a SImulated Highway Cross-Section." Master's thesis, University of Central Florida, 2014. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6380.

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Nutrient pollution as a result of excessive fertilizer application is of major concern for Florida's water resources. Excess fertilizer can be lost either via surface runoff or by leaching through the soil mass eventually reaching water bodies and leading to eutrophication. The focus of this study is to analyze the effect of low rainfall intensities and overland flow from an adjacent roadway surface on the loss of nutrients from two different fertilizers. This study focuses on the fate of the nitrogen and phosphorus present in fertilizers utilized by the Florida Department of Transportation fo

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47

Sun, Huawei. "Theoretical and experimental study of a high rise hog building for improved utilization and environmental quality protection." Columbus, Ohio : Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1079066940.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xii, 200 p.; also includes graphics (some col.). Includes abstract and vita. Advisor: Frederick C. Michel, Jr., Dept. of Food, Agricultural, and Biological Engineering. Includes bibliographical references (p. 173-181).

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Delgado, Cristina. "Claims of Mistaken Identity: An Examination of U.S. Television Food Commercials and the Adult Obesity Issue." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2700.

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Obesity is one of the major public health issues in the United States, often regarded as part of a global crisis. Companies invest billions of dollars each year towards television advertising campaigns aimed at convincing audiences how their ground-breaking discovery 'battles the bulge' or somehow offers an increased health benefit. This study examined how advertisers presented health-related claims, including health and nutrient-content claims, in U.S. adult-targeted television food commercials. The claims were compared to FTC, FDA, and USDA laws, regulations, and recommendations. A content a

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Verbree, David Adrian Duiker Sjoerd W. "Sediment and nutrient losses in reduced tillage systems on dairy farms." 2008. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-3360/index.html.

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Chen, Liang-Guu, and 陳亮谷. "Study of Fertilization on Nutrient Losses in Alpine Soils from Central Taiwan." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/33602158259609191754.

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碩士<br>國立中興大學<br>土壤學系<br>84<br>Abstract Fruits and vegetables were planted years at the area of Li-shang and Wu-ling in central Taiwan. The hidden danger of soil loss, fertilizer loss, water pollution and the connection of fertilizer loss and water pollution with soil fertilizer potential of nutrient retained became critical after great amounts of fertilizers were applied. The first objective of this study is to investigate the soil fertilizer potential i

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