Agricultural Draining
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Effects of forest conversion on the assemblages' structure of aquatic insects in subtropical regions
The effects of forest conversion to agricultural land uses on assemblages of aquatic insects were analyzed in subtropical streams. Organisms and environmental variables were collected in six low-order streams: three streams located in a forested area, and three in areas converted to agricultural land uses. We expected that the aquatic insects' assemblage att
Rev. Bras. entomol.. Publicado em: 2015-03
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2. Efeitos antrópicos sobre concentrações de metais alcalinos na região da microbacia do Arroio Araçá, Canoas - Rio Grande do Sul
This work presents alterations in the concentrations of alkaline metals sodium, lithium and potassium, in abiotic compartments, at Araçá stream micro-basin, located in Canoas, RS. Its spring is located in a low populational density region and crosses an elevated environmental impacted urban area. Its final course crosses an agricultural area. Samples of at
Química Nova. Publicado em: 2009
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3. Geotechnical characteristics of unpaved roads of Bauru/SP / Caracteristicas geotecnicas de estradas não-pavimentadas no municipio de Bauru/SP
The road net, represented by the highways and unpaved roads, has a vital importance for a nation. The rural and unpaved roads have great importance in the social and economic scope of the country; therefore they are responsible for the access of the agricultural population to the urban services, beyond draining great part of the agricultural production. With
Publicado em: 2009
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4. Chemical attributes and texture of the soil in conserved and altered wetlands (veredas) in Cerrado biome / Atributos químicos e textura do solo em veredas conservadas e antropizadas no bioma Cerrado
The objective of this work was to study the soil of wetlands situated in conserved and altered environments (in agricultural and cattle areas), by determining the chemical attributes and texture of the soil. The study was carried through in the central region of Cerrado biome, in the state of Goiás, in wetlands situated in the City of Bela Vista de Goiás.
Publicado em: 2009
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5. Study of mixers fertilizers plants localization in brazilian Center-West region using a linear programming model / Estudo de localização de fábricas misturadoras de adubo na região Centro-Oeste brasileira utilizando um modelo de programação linear
Currently, the brazilian agribusiness is responsible for about 37% of the national PIB and face up to two of the great challenges in its constant growth which are the high dependence of chemical products (fertilizers) to expand its agricultural frontier and consequently, the distance (and transports costs) that this frontiers impose to be overcome, as much f
Publicado em: 2009
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6. Atributos químicos e textura do solo em veredas conservadas e antropizadas no bioma Cerrado / Chemical attributes and texture of the soil in conserved and altered wetlands (veredas) in Cerrado biome
The objective of this work was to study the soil of wetlands situated in conserved and altered environments (in agricultural and cattle areas), by determining the chemical attributes and texture of the soil. The study was carried through in the central region of Cerrado biome, in the state of Goiás, in wetlands situated in the City of Bela Vista de Goiás.
Publicado em: 2009
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7. Efeito da cobertura do solo e de práticas de controle de erosão nas perdas de água e solo por escoamento superficial / Ground covering and practical erosion control effects in the water and soil losses by run-off
The main pollutants of water resources from agricultural areas are organic matter, sediments, nutrients and pesticides, carried out mainly by runoff from farming lands. Considering this fact, it is very important the development and application of technologies to reduce such undesirable residues discharges, that were analyzed in this study. The experiment wa
Publicado em: 2009
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8. Hydrologic simulation on basins into Camargos Hydropower Plant Reservoir/CEMIG. / SIMULAÃÃO HIDROLÃGICA NA REGIÃO ALTO RIO GRANDE A MONTANTE DO RESERVATÃRIO DE CAMARGOS/CEMIG
VIOLA, Marcelo Ribeiro. Hydrologic simulation on basins into Camargos Hydropower Plant Reservoir/CEMIG. 2008. 120p. Thesis (Master Science in Agricultural Engineering. Soil Water Engineering) - Federal University of Lavras, Lavras - MG Conceptual hydrologic models simulation to basins is one of the most important tools to support water resources mana
Publicado em: 2008
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9. DiagnÃstico do uso e ocupaÃÃo do solo na bacia hidrogrÃfica do Rio SÃo JosÃ, Cascavel â PR.
The use of soil is understood as a space that is being occupied by man, developing a set of activities of production and reproduction of a society, involving both urban and agricultural areas. Due to the economic development of the last few years, this subject has been studied more and more with a common concern: the quality of water. The objective of this p
Publicado em: 2008
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10. MEASURER OF PROPORTIONAL OUTFLOW FOR THE QUANTIFICATION OF THE WATER CONSUMPTION IN THE IRRIGATION / MEDIDOR DE VAZÃO PROPORCIONAL PARA A QUANTIFICAÇÃO DO CONSUMO DE ÁGUA NA IRRIGAÇÃO
The present work had for objective to develop a simple process, with low cost and enough precise for its use in irrigation systems. The measurer consists of a secondary canalization provided with a hydrometer of low outflow installed in parallel with a singularity capable to provoke a pressure difference enters the extreme points of the device. The distingui
Publicado em: 2007
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11. Modelagem de lixiviação do herbicida picloram atraves de lisimetro de drenagem sob vegetação de Brachiaria decumbens / Modeling of picloram herbicide leaching in a lysimeter under Brachiaria decumbens vegetation
Picloram is one of the most used herbicides in the control of weeds in pastures areas, especially the ones of difficult eradication. Many are the stories of wells and springs contamination with herbicides residues as a result of its leaching in grounds. Due to the lack of knowledge and available data on the destination of the picloram in brazilian grounds, r
Publicado em: 2007
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12. Avaliação quantitativa e qualitativa das águas utilizadas na cultura do arroz irrigado em áreas produtoras da Bacia do Itajaí-SC
The region of the Itajaí catchment -SC, is a great producer of rice in the plantation system germinated daily pay. To guarantee higli productivity, the water is a feeder intensely used in the culture of the irrigated rice. Its importance is related to the use for the preparation of the soil, to supply necessity of the plant, to the easiness of control of we
Publicado em: 2006