1000 resultados para riscos ambientais
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O presente estudo teve como objetivo caracterizar os impactos decorridos da mineração de argila para cerâmica vermelha por 10 produtores localizados na Sub-bacia do Ribeirão Jacutinga. A extração da matéria-prima proveniente do manto de alteração da Formação Corumbataí constitui uma forma de mineração de pequeno porte, a qual acumula impactos por um longo período. Para caracterização dos impactos fez-se uso de Sistema de Informação Geográfica para análise de imagens orbitais (TM-Landsat) e dados obtidos em base 1:10.000 e observação in situ. Os principais impactos detectados foram: abertura de cavas em locais de várzea, formação de lagos em cavas abandonadas, modificação da paisagem, falta de ações de recuperação de áreas lavradas e corte de vegetação nativa. Foram identificadas as áreas de maior fragilidade ambiental na sub-bacia, as quais estão associadas a zonas de maior declividade ou a locais de extração. A exploração mineral trouxe significativas alterações no quadro natural desta sub-bacia e o conhecimento sobre as limitações ambientais, aptidões para exploração e formas de mitigação dos impactos, mostram-se de extrema necessidade para uma ocupação mais racional do espaço, respeitando as limitações impostas pelo meio físico e prezando por ações sustentáveis.
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No presente trabalho foram avaliados os elementos ambientais: temperatura do solo, temperatura e umidade relativa do ar, nas condições de ambiente protegido (coberto com polietileno) e de campo, num período sem cultura (solo sem cobertura vegetal) e num outro com a cultura do pimentão, em anos diferentes, nas condições climáticas de Botucatu, SP. O híbrido de pimentão utilizado foi o Margarita, que apresenta frutos vermelhos quando maduros. A temperatura do solo foi monitorada por dois sensores eletrônicos instalados a 0,1m de profundidade, sendo um na condição de ambiente protegido e outro na condição de campo, e a temperatura e umidade do ar foram monitoradas por dois sensores eletrônicos instalados a 2m de altura (ambiente protegido e campo). O efeito do pimentão alterando o microclima de cultivo foi observado na temperatura do solo, que apresentou menores valores do índice no período com a cultura, uma vez que o dossel funcionou como uma barreira física que impediu que a radiação solar chegasse ao solo. Os valores encontrados para o índice da temperatura e umidade relativa do ar no período sem a cultura foram muito próximos aos encontrados no período com a cultura, não caracterizando o efeito do pimentão sobre essas variáveis.
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Pós-graduação em Medicina Veterinária - FMVZ
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Pós-graduação em Geografia - IGCE
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There is a huge debate surrounding the sustainability issues, especially urban sustainability. This article seeks to establish a critique of models of sustainable cities and postmodern city structured by dispersed city model produced by the logic of capital, it is an effort to confront methodological theoretical models of two cities, the capitalist model of production space and model sustainable city, the dispersed city model against a model of the compact city. For example it was used as environmental certifications for building a label denoting sustainable building when actually articulate a series of symbols that mask and reaffirm their production processes from the perspective of capital cities
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Physiological responses like the thermal requirements for germination may be influenced during seed formation by environmental conditions such as water availability and temperature. Here we analyzed germination of embryos of Ingavera subsp. affinis from different sources in response to various temperature regimes, including calculation of degree days and accumulated rainfall during development and maturation. Embryos were taken from ripe fruits collected on trees located in São Paulo and Minas Gerais, and were analyzed as to germination, water content and dry matter content. The results showed that the origin of the embryos was related to variation in response under sub-optimal temperatures. Depending on the origin, I.vera subsp. affinis embryos were able to germinate even at low temperatures (10 to 15 ºC), with better performance attained from 20 to 25 ºC. This variation may be associated, among other factors, to environmental conditions during maturation and to the maturation stage at seed dispersal.
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In this study we intent to contextualize the topic environmental vulnerability on the world stage, highlighting similarities and differences in their conceptions in Portugal and Brazil. In the literature about the vulnerability is already established the contribution of Geotechnologies, especially the Systems of Remote Sensing and Orbital Imaging as well as Geographic Information Systems (GIS) and its potential for modelling physical and socioeconomic aspects for the prevention, mitigation and facing risk manifestations, whether natural, technological or mixed. This paper aims to discuss the methodological framework of vulnerability studies and the results of application in the modelling of socioeconomic and environmental data in the context of the Region Centre of Portugal and the State of Sao Paulo, Brazil. The methodology for analysing the vulnerability of these regions was based on quantitative studies of the capacity of resistance and resilience of populations and territories. The results were consistent with the socio-environmental realities of the study areas and reflect the complexity of facing and recovery of risk situations in case of territories and populations under low economic conditions and urban infrastructure, whether in Brazil and Portugal.
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Pós-graduação em Medicina Veterinária - FCAV
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Pós-graduação em Engenharia de Produção - FEB
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This investigation addresses the possibility of teaching themes related to environmental issues in Physical Education. We identified and classified such issues as: administrative and economic, aesthetic and philosophical, virtual, historical and geographical, sociological and political, physical and natural. Then, we discussed how the specific dynamics of culture, movement, and environment raises certain questions about each theme's relevance and its repercussions on teachers' professionalism. We believe that in the context of the daily intervention there are perspectives for both adaptation and transformation that might be further developed during classes in collaboration with the students.
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Pós-graduação em Agronomia (Produção Vegetal) - FCAV
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The content of this article addresses two complex issues that concern contemporary society: Science of Human Functioning and Environmental Sustainability. On the one hand, the Science of Human Functioning, meeting the principles of the International Classification of Functioning (ICF) and Universal Design, aim the development of accessible projects, products and environments, used by everyone, at the greatest extent possible, free from adaptation or plans to remove architectural barriers. The Universal Design is a process for creating products that are accessible to everyone, regardless their personal characteristics, age, skills and needs. On the other hand, Environmental Sustainability, with principles already imbricated in the Science of Human Functioning, traverses towards the acquisition of realistic measures for the segments of human activities. Based on the emphasis of the sustainable development, it aims to meet current needs not compromising the possibility of future generations to meet their own needs. Thus, it seeks the balance in coexistence between men and the environment by taking care of environmental, social and economic aspects and seeking for alternatives to support life on Earth with no harm to the quality of the planet in the future. It is argued that the combination of the issues contains relevant potential for interdisciplinary action, bringing together professionals from several fields of knowledge that, by socializing their experiences aiming at improving the human functioning and quality of life of people and environment, will be able to innovate and reinvent the knowledge for benefiting welfare, thus contributing effectively to society.