Sediment Loss
Mostrando 1-12 de 67 artigos, teses e dissertações.
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1. Blocks for civil construction made with the sediment deposited in the Candonga dam
Abstract The use of the sediment deposited in the Candonga dam after the collapse of the Fundão dam is being considered as raw material for civil construction. Blocks were obtained by adding 5 % of sodium carbonate and 13 % of water to the dried dredged sediment, which was mixed and heat treated at 700 ºC and cooled slowly inside the oven to room temperatu
REM, Int. Eng. J.. Publicado em: 2019-03
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2. INFLUENCE OF LAND USE CHANGE ON SEDIMENT YIELD: A CASE STUDY OF THE SUB-MIDDLE OF THE SÃO Francisco River Basin
ABTSRACT Erosion risk mapping and assessment are important for planning of natural resource management tool. The objective of this study was to simulate different scenarios of land use in the Sub-Middle of the São Francisco River Basin using the Soil and Water Assessment (SWAT) model to analyze the effects of changes in sediment yield, making comparisons wi
Eng. Agríc.. Publicado em: 2016-12
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3. CLAY AND PHOSPHORUS LOSSES BY EROSION IN OXISOL WITH SUGARCANE RESIDUES
ABSTRACT Considering the importance of nutrients in the soil for the plants development and the soil quality conservation and the quantification relevance of them for proper soil management, the aims of this research were: (i) to quantify the clay loss, adsorbed and soluble P from interrill erosion influenced by the presence of sugarcane residues on the grou
Eng. Agríc.. Publicado em: 2016-12
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4. Estimativa de erosão pela Equação Universal de Perda de Solo (USLE) e transferência de sedimentos para todo território Brasileiro / Estimation of erosion by the Universal soil loss Equation (USLE) and sediment transfer for Brazilian territory
O presente trabalho é uma tentativa de validar uma metodologia para estimar a produção de sedimentos para todo território Brasileiro. Foram utilizadas ferramentas de sistemas de informação geográfi ca (GIS), estatística espacial, modelagem e gerenciamento de bancos de dados aplicados a conservação de solos, permitindo combinar a equação Universal
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/08/2012
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5. Morfodinâmica associada entre duna, praia e zona submarina como subsídio a adequada ocupação do espaço costeiro na Praia do Peró - RJ. / Morphodynamics associated between dune, beach and underwater area as an aid to proper occupation of coastal space in Praia do Pero - RJ.
The coastline offers a veritable mosaic of diversity in coastal landforms, which enable the development of a number of different economic activities. Coastal environments are highly dynamic and involve a complex series of continental and oceanic processes. The beach of Pero, located between Cape Buzios and Cabo Frio, Rio coast, appears as an area distinct fr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2011
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6. Impacto de condicionantes hidrológicas na definição de traçados rodoviários : aplicação na rodovia TO-247
The contribution of this research is given by the design of effective impacts of highways, through the expansion of the influence areas beyond the linear tracks, adding the assessment of the environmental sensitivity of watersheds in order to optimize the layout of road projects. It was produced an orderly and systematic approach of the cause and consequence
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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7. Desenvolvimento e aplicação de procedimento metodológico em suporte ao planejamento participativo para redução de perda de solos em pequenas bacias hidrográficas com emprego da EUPS
The agrosilvipastoral activity has impacted negatively the environment worldwide, promoting soil erosion and sediment settling in water bodies. The Universal Soil Loss Equation (USLE) estimates the rates of laminar erosion (A; in ton/acre/year) by the multiplication of six parameters: A = RKLSCP (R: rainfall erosivity factor; K = soil erodibility factor; S:
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2010
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8. TOPOSSEQUENCE PEDOLOGICAL ANALYSIS THROUGH THE RELATION BETWEEN PRECIPITATION AND SEDIMENT LOSS AT ITAGIBA HILLSIDE, NORTH AREA OF SANTA MARIA RS. / ANÁLISE PEDOLÓGICA EM TOPOSSEQUÊNCIA ATRAVÉS DA RELAÇÃO ENTRE PRECIPITAÇÃO E A PERDA DE SEDIMENTOS NA ENCOSTA ITAGIBA, ZONA NORTE DE SANTA MARIA - RS.
As ocupações em áreas de risco nas cidades brasileiras decorrem principalmente dos processos de desigualdade social, má gestão e ausência de planejamentos públicos. No município de Santa Maria, Rio Grande do Sul não é diferente, havendo elevado número de ocupações em áreas de risco, sendo uma dessas áreas a encosta Itagiba, localizada no bairr
Publicado em: 2010
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9. Análise da redistribuição do "fallout" do 137Cs na avaliação da erosão e deposição de sedimentos em sistemas de manejo de solo sob Cerrado / Erosion and sediment deposition evaluation on slopes under different tillage systems in the Cerrado region using the 137Cs fallout technique
In Brazil, the expansion of agricultural areas causes several problems on natural resources. With the increasing occupation of the Cerrado region by agriculture, a series of environmental problems like deforestation, soil erosion and soil compaction are appearing and causing radical transformations in the natural landscape due to removing almost all native v
Publicado em: 2010
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10. Desempenho de plantas de cobertura no controle da erosão hídrica no Sul de Minas Gerais / Performance of cover crops to control erosion in the South of Minas Gerais
The erosion initiates with the impact of the raindrop on the soil surface, causing the transport of sediment, nutrients and organic matter. To reduce this erosion, the use of conservation practices, such as proper management and planting of cover crops that reduce these losses, is essential. The objective of this study was to evaluate the potential of plant
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/12/2009
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11. Desenvolvimento e validação de metodologia analítica para determinação de hidrocarbonetos policíclicos aromáticos (HPAS) em sedimentos. Avaliação da represa do Parque Pedroso, Santo André, SP / Development and validation of analytical methodology for determination of polycyclic aromatic hydrocarbons (PAHs) in sediments. Assessment of Pedroso Park Dam, Santo André, SP
The polycyclic aromatic hydrocarbons (PAHs), by being considered persistent contaminants, by their ubiquity in the environment and by the recognition of their genotoxicity, have stimulated research activities in order to determine and evaluate their sources, transport, processing, biological effects and accumulation in compartments of aquatic and terrestrial
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/09/2009
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12. Valuation of Atlantic Forest environmental services in the water quality and quantity of the Sana EPR. / Valoração dos serviços ambientais da Floresta de Mata Atlântica associados à qualidade e quantidade da água na APA do Sana.
The study evaluated the relationship between soil coverage and the quality and quantity of water in watersheds in order to assess the environmental services of the Atlantic Forest in two micro basins. The micro basins Palmital and Glória are located in the Sana Environmental Protection Area (EPR), municipality of Macaé (RJ). They are covered by different p
Publicado em: 2009