284 resultados para IMPACTO AMBIENTAL
Resumo:
Pós-graduação em Engenharia Mecânica - FEG
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
Pós-graduação em Aquicultura - FCAV
Resumo:
Pós-graduação em Geografia - IGCE
Resumo:
O livro apresenta os resultados mais relevantes das atividades realizadas dentro do Programa de Pesquisa sobre Mudanças Climáticas Globais, patrocinado pela Fapesp e relacionado a estudos de impactos, vulnerabilidades e variabilidades nas mudanças do clima no estado de São Paulo e região sudeste do Brasil. Tais experiências têm sido discutidas e desenvolvidas com grupos de pesquisa de Portugal, que dão ao trabalho um caráter mais abrangente e internacional. O Brasil vem estudando já há algum tempo impactos das mudanças no clima que possam servir como base para estratégias de adaptação e para análises de vulnerabilidade diante das ameaças climáticas. O projeto da Fapesp tem, especificamente, a missão de produzir estudos de detecção e traçar cenários climáticos futuros, com metodologias que possam ser aplicadas em todo o Brasil. Essa metodologia leva em conta uma combinação de dados do clima (observações e projeções derivadas de modelos climáticos) com base em informações ambientais, geográficas, geofísicas e sociais. A ênfase está nos extremos climáticos e nos seus impactos sobre os recursos hídricos, assim como no planejamento com vista a minimizar os desastres naturais de origem meteorológica, que de alguns anos para cá têm se disseminado pelo país
Resumo:
AIM: In this paper we estimate the sediment yield and other related information for a small urbanized watershed, located in Sorocaba, São Paulo State. The driving forces that produce the observed scenario are presented and discussed; METHODS: Over a year, water samples and hydrologic information concerning the river channel were collected monthly at one sampling site. In the laboratory, water samples were oven dried (80 ºC) and the total suspended solid weighed for each sample. To estimate sediment yield we used Colby's simplified method. The sediment delivery ratio (SDR) was estimated using two methods: the relief - length ratio and the bifurcation ratio; RESULTS: The annual sediment yield estimated for the period was 1,636.1 t. The total specific sediment yield was 541.7 t.km -2.y-1. Bedload was the predominant fraction. The SDR changed between 60 and 66% according to the method employed. CONCLUSIONS: The main driving forces of hydrosedimentological disequilibrium are the lack of riparian vegetation, the dumping of construction wastes at inadequate sites, and the launching of untreated sewage. Hence, if these three factors were controlled, a significant improvement in the environmental quality, particularly water quality, might be achieved.
Resumo:
Uberaba municipality, Western Minas Gerais State, has a great geotouristic potential, regarding its geological heritage. The igneous rocks from Serra Geral Formation are found in 12 points, highlighting Ponte Alta (40 meters) and Peirópolis III (7 meters) waterfalls. The sedimentary rocks from Uberaba Formation were described in 11 points, especially Giovane Cave and Waterfall (12 meters). In Marilia Formation sedimentary rocks, the Caieira outcrop (three-meter cave with stalactites and stalagmites) and Vale Encantado Waterfall (8 meters) can be pointed out, among other 8 spots. After the geodiversity assessment, an environmental diagnosis was conducted throughout the potential geotourism attractions, by using the Visitor Impact Management Method. The results indicate that only Vale Encantado Waterfall presents a moderate impact, the least when compared to 22 other sites, exhibiting high or worrisome impact, and 7 with very high impact. In addition to setting the management strategies, and monitoring the environmental impact indicators, this work provides the basis so that activities in the potential Geopark of Uberaba (MG) can be conducted with environmental responsibility and / or geoconservation.
Resumo:
A study was conducted to evaluate the feces+urine produced per animal (FUPA), dry matter, mineral matter, organic matter, nitrogen, phosphorus, potassium and sulfur in feces of gilts fed diets with increasing levels of ractopamine (0, 5, 10 and 15 mg kg-1 of diet). A total of 468 finishing gilts were allotted into 36 pens. In two days of each week, feces and urine were daily sampled in four pens per treatment, quantifying the feces+urine. To determine the characterization of feces, two samples per week were taken daily, in nine pens per treatment. It was used a split plot design, considering the ractopamine level as the plot and the weeks as the subplots. There was no reduction in nitrogen amount in feces. An interaction was detected between ractopamine concentrations and weeks for FUPA and phosphorus, potassium and sulfur in feces. Ractopamine addition in diets for gilts has reduced the feces+urine production and nitrogen and phosphorus excretion. Higher values estimated for potassium content in feces of animals fed diets with 10 and 15 mg of ractopamine kg-1 were found between the second and third week. Increasing levels of ractopamine from 5 to 15 mg kg-1 promoted higher excretion of sulfur over the weeks of supply.
Resumo:
Pós-graduação em Ciência e Tecnologia de Materiais - FC
Resumo:
Pós-graduação em Agronomia (Produção Vegetal) - FCAV
Resumo:
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Resumo:
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Resumo:
Pós-graduação em Agronomia - FEIS
Resumo:
Pós-graduação em Ciência e Tecnologia de Materiais - FC
Resumo:
Pós-graduação em Engenharia Civil e Ambiental - FEB