Natural Potential Of Erosion
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. 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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2. MODELING OF WATER, SEDIMENT AND PHOSPHORUS LOADS IN AN AGRICULTURAL WATERSHED IN SOUTHERN BRAZIL / MODELAGEM DO ESCOAMENTO, DA PRODUÇÃO DE SEDIMENTOS E DA TRANSFERÊNCIA DE FÓSFORO EM BACIA RURAL NO SUL DO BRASIL
Areas under intensive tobacco crop cultivation have been impacting the water balance and increasing soil erosion in Southern Brazil. Application of large amounts of mineral fertilizers, higher than the tobacco requirement, contributes to excessive phosphorus loads in soil and water bodies. The assessment of potential environmental impacts due to changes in l
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2011
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3. Potencial impacto das mudanças climáticas nas perdas de solo e água na microbacia do córrego Jaqueira, Alegre - ES. / Potential impact of climate change on soil loss and water in the watershed of the córrego Jaqueira, Alegre - ES.
O controle do processo erosivo requer o entendimento das interações complexas entre os processos químicos e físicos do solo, além dos hidrológicos e meteorológicos. Diversos modelos matemáticos vêm sendo desenvolvidos e aperfeiçoados com o objetivo de prever a magnitude das perdas de solo por erosão, como o Water Erosion Prediction Project (WEPP).
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/07/2010
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4. Avaliação da susceptibilidade erosiva da bacia do rio Carinhanha (MG/BA) por meio da EUPS : equação universal de perda de solos
Mathematical models are suitable for a quick and economical assessment of erosion susceptibility. The Universal Soil Loss Equation (USLE), one of the most well-known and used models, predicts erosion susceptibility based on rainfall erosivity (R-factor), slope length (L-factor), slope-steepness (S-factor), cover and management (C-factor), and support practic
Publicado em: 2009
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5. A influência do sistema Faxinal no Estado Ambiental da Bacia Hidrográfica do Rio Sete Saltos - PR
The Hydrographical Basin provides among its many potential natural features, such as, being a unit of management natural resource for easy definition. However, to diagnose the interaction between the physical and biotic aspects it is necessary to use techniques that allow this task. In this research it was used the Physical-Conservationist Diagnostic methodo
Publicado em: 2009
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6. ESTABLISHMENT OF ZONING GEOENVIRONMENTAL FOR URBAN PERIMETER OF SANTA MARIA- RS / ELABORAÇÃO DE ZONEAMENTO GEOAMBIENTAL PARA O PERÍMETRO URBANO DE SANTA MARIA - RS
Human activities, in their diversity, it impact on the environment, causing profound changes in the natural landscape, which may reflect a framework of environmental degradation and loss of quality of life, especially in urban environments. Therefore, the environmental analysis beyond the limits of understanding of the natural or human framework, but the int
Publicado em: 2009
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7. Utilização de sistemas de informação geográfica na identificação de áreas vulneráveis à contaminação do lençol freático : o caso da bacia do alto e médio curso do rio Uberabinha - MG
Due to the necessity of finding an efficient way of management for the water resources, the drainage basin has been proposed as the basic unity for its planning and management. As mentioned, it has been chosen the basin portion of the Uberabinha River situated in the city of Uberlandia as the area to be studied. As the drainage basin of the Uberabinha River
Publicado em: 2009
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8. Environmental characterization of the Mogi Guaçu river upstream region (Bom Repouso - MG): replicability strategies and guidelines for drawing up the environmental adequation plan / Caracterização ambiental da região de montante do rio Mogi-Guaçu (Bom Repouso - MG): estratégias para replicabilidade e diretrizes para elaboração do plano de adequação ambiental
The upstream region of the river Mogi Guaçu is considered strategic regarding the water issue, with hundreds of springs that contribute to the formation of brooks and streams and which enable the multiple uses of water in cities located in the states of Minas Gerais and São Paulo. Considering this, we tried to carry out an environmental diagnostic (between
Publicado em: 2009
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9. Estoque e qualidade da matéria orgânica do solo em áreas cultivadas com café sob sistemas agroflorestal e a pleno sol / Soil organic matter stock and quality in agroforestry and full sun coffee systems
Soil organic matter (SOM) restoring is considered a main goal in the enhancement of soil quality. The evaluation of changes in the SOM as a result of soil management practices is fundamental to identify strategies to increase agricultural production, avoiding soil degradation and decreasing the emission of greenhouse gases. In Brazil, no-tillage has been bro
Publicado em: 2009
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10. Tthe evaluation of different methods employed in landslide risk analysis: the application of a methodological proposal in Ubatuba, SP / Avaliação de metodologias de análise de risco a escorregamentos: aplicação de um ensaio em Ubatuba,SP
The main objective of this research was the evaluation of different methods employed in landslide risk analysis and the application of a methodological proposal of landslide risk evaluation based on terrain evaluation techniques. These techniques present an approach of integrated geoenvironmental factors and have the purpose of contributing to the prevention
Publicado em: 2007
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11. Aplicação de dados SRTM à modelagem da erosão em microbacias por geoprocessamento / Application of SRTM data to the modelling of erosion in watersheds using geoprocessing
The Universal Soil-Loss Equation (USLE) is a widely used method for calculating annual soil erosion losses, based on rainfall, soil type, topographic and land-use parameters. This study was designed to apply SRTM data for erosion modeling through USLE. The analysis of two watersheds in Maranhão showed the feasibility of remote sensing applications beyond la
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/04/2006
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12. Aplicação de dados SRTM à modelagem da erosão em microbacias por geoprocessamento / Application of srtm data to the modelling of erosion in watersheds using geoprocessing
The Universal Soil-Loss Equation (USLE) is a widely used method for calculating annual soil erosion losses, based on rainfall, soil type, topographic and land-use parameters. This study was designed to apply SRTM data for erosion modeling through USLE. The analysis of two watersheds in Maranhão showed the feasibility of remote sensing applications beyond la
Publicado em: 2006