1000 resultados para zoneamento climático
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Pós-graduação em Agronomia (Proteção de Plantas) - FCA
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O Estado de São Paulo apresenta poucos remanescentes de vegetação nativa, ameaçados pela expansão urbana e agricultura. Com a grande expansão das atividades silviculturais no país, estudos sobre as contribuições e impactos das florestas plantadas são de grande importância na análise da sucessão secundária e conservação de ambientes naturais. O trabalho teve como objetivo a análise da composição florística e estrutura fitossiológica do estrato arbustivoarbóreo de uma comunidade vegetal regenerante na face norte dos talhões 91G, 91H e 91I, na Floresta Estadual “Edmundo Navarro de Andrade” (FEENA), em Rio Claro, SP, em uma área anteriormente ocupada por Eucalyptus sp, sendo as espécies classificadas quanto as classes sucessionais e síndromes de dispersão. A área correspondente aos talhões 91G, 91H e 91I está incluída no Plano de Manejo como Zona de Recuperação, para posterior inclusão no zoneamento como área permanente. Foram alocadas 28 parcelas com dimensões de 20x10 metros cada, totalizando 0,56 ha amostrados. Os resultados indicaram a presença de 79 espécies pertencentes a 34 famílias, sendo as famílias Fabaceae, Asteraceae, Euphorbiaceae e Myrtaceae as mais representativas em número de espécies. Houve grande abundância e dominância de Virola sebifera e Siparuna guianensis, amplamente distribuídas na área. A maior parte das espécies amostradas é pioneira ou secundária inicial, sendo a grande maioria zoocórica, o que sugere presença de fauna. Foram encontradas muitas espécies generalistas, algumas típicas de floresta e cerrado, portanto, a área assemelha-se a um ecótono de cerrado e floresta estacional semidecidual, com maior abundância e biomassa de espécies generalistas e típicas de cerrado. Dessa forma, a riqueza encontrada foi considerada alta em comparação com outros estudos realizados na FEENA, sendo indicada... (Resumo completo, clicar acesso eletrônico abaixo)
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In the last few decades, Brazil has experienced an accelerated urbanization process in which many cities have grown in a disorderly way occupying environmentally fragile areas unsuitable for habitation. Anthropogenic actions such as high levels of impermeable soil, structural changes in watercourses, lack of riparian vegetation, illegal presence of trash and rubbish along the river banks added to irregular settlements in floodplains result in the rise of high risk areas. When accompanied by intense and prolonged rainfall phenomena, those areas have been the scenery of serious accidents such as floods. This study aims to classify the level of the risk of floods in the neighborhood of Jardim Inocoop, in the town of Rio Claro, São Paulo countryside, Brazil. One of the main technical support to tackle this issue is the identification and classification of the risks. In order to classify the risk level of flood in this case study, the methodology adopted was developed by the Ministry of Cities and Technology Research Institute, and take into account the arrangement of the hydrological scenario, vulnerability of households and dangerous process according to the distance of the houses from the axis of drainage. Therefore, the risk levels adopted to classify are listed below: very high (MA), high risk (A), moderate (M) and low risk (B). In conclusion, it is imperative to develop prevention plans in order to avoid or to minimize the damages caused by natural disasters. Therefore, the zoning of the risk sceneries remains as an important issue once it helps to identify the areas with high level risk of flood. Consequently, the occupation must be regulated where there is low or absent risk and it must be often forbidden where the high risk of flood is detected. Thus, the present study remains as an attempt to notify the risk of floods through its spatialization on a map, remainig...(Complete abstract click electronic access below)
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The disaster natural disaster stand as one of the greatest challenges of urban man. Cities are built and modeled as a function of economic and political issues, without respecting environmental characteristics. So it is possible to see through the data of the National Civil Defence large number of disasters occurring in Brazilian cities in the years 2009 to 2011, and in all were reported over 5000 occurrences of natural disasters over the years. The Brazilian public policy failures show up in issues of urban planning where to admit the allocation of people in inappropriate areas. Another issue to be considered is the non-response of the population to civil defense warnings, people often prefer to risk staying in high-risk areas for fear of being robbed while they are away, and end up not serving the notices given by the Civil Defense, increase thus the number of victims when in fact the weather event triggers natural disasters one
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Este trabalho é uma proposta de metodologia para design de agroecossistemas, tendo como experimento o Sítio Beira Serra em Botucatu(SP). Com base nos princípios da Permacultura foi analisado o contexto da área por meio de um estudo do ecossistema e da história da família e da cidade; os fluxos energéticos que influenciam no ecossistema; os elementos que fazem parte do sistema para que através de um zoneamento, criar novas relações entre os sistemas de produção com o objetivo de apresentar a viabilidade comercial de um sistema de produção sustentável em pequena escala
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The region of the biome Cerrado is under threat due to the replacement of their native areas for expansion of agriculture and livestock. This occupation is responsible for the loss of about 50% of two million square kilometers of original native savannah. The land use, without control or zoning, has caused serious damage to natural resources of this biome, considered as an international hotspot area. As a result, some problems caused by ecological imbalances already topping the urban and rural environments, such as species extinction, water scarcity and desertification. Any occupation in this biome should be evaluated with caution, because this region, besides being considered one of the most productive of Brazil, is also rich in biodiversity and water resources. The understanding of the importance of the Cerrado biome and its remaining areas, allows the preparation of detailed studies of environmental valuation, which is essential for the development of conservation policies, avoiding even greater environmental impacts. To meet the growing demand for food, you can increase productivity through agroforestry, for example, and to preserve the remaining areas, you can create new protected areas and tailor existing units
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The present study aims to establish the mapping units climate Metropolitan Region of São Paulo, with a more refined analysis in the study of extreme weather events to contribute to the adaptation of populations made vulnerable in the face of extreme weather events, and also as an aid local public policies, from a new perspective climate. As criteria of analysis, temperature, precipitation, altitude and use and occupation of land. For this we use as a work methodology broad literature review, fieldwork and use of geotechnology in the proposed mapping generation
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This research sought to understand the temporal and spatial distribution of rainfall and its effect on water dynamics on a regional basis, taking into account the pace of climate paradigm. The study area covers the entire river basin of the Itajai and its surroundings understood, roughly, between parallels 26° and 28° south latitude and 48° and 50° 30' west longitude, place of constant heavy rains and floods. In this region, pluviometric and fluviometric data were obtained, the variables of rainfall and water flow, which were compiled and analyzed using spreadsheets in order to get the series with more homogeneous data as possible for good analysis, the period between 1953 and 1982. This historical period has passed in principle by an analysis which sought to highlight the variability and distribution of rainfall and water flow in the basin-level annual, techniques which were used that allowed the choice of standard year representative (rainy, dry , usual) series. These obtained years (1957, 1968 and 1971, respectively) underwent a detailed analysis on the monthly level, providing good interpretation of the dynamic behavior of rain associated with dynamic water flow for these representative years
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The Roosevelt-Domain Aripuanã that by Filho et al 2004 is characterized by a metavolcanic sedimentary sequence, containing acidic to interemediary metavolcanic rocks and clastic and chemical sediments, deformed and metamorphosed at low grade, with U-Pb age of 1.743 +- 4 Ma, (by Granito Zé do Torno), and circumscribed bodies of granites late to post-orogenic (Aripuanã)...
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The spatial chaotic urban growth is an increasing and common problem in Brazilian cities, especially in the State of São Paulo. In order to assist the territorial expansion planning, the present study aimed to conduct the environmental diagnosis of urban expansion areas in the City of Jaguariúna – SP, bounded by the Municipal Plan. From the preparation and analysis of thematic maps, literature review and field analysis, data were collected for use and occupation, geology, geomorphology, pedology, vegetation, water resources and features surrounding the five urban sprawl existing areas. It was noted, in general, that these areas are suitable for urban occupation, since they show flat geomorphology characteristics, with flattened, medium to large hills, slightly undulated, with low slope, and soils that do not present risks to the deployment of buildings, once properly managed. It was also observed a few water bodies crossing these areas and a few areas with native vegetation beyond permanent protection areas along the rivers. By the analysis of these areas and their surroundings, it was possible to determine on which area the urbanization process can occur more quickly. Thus, the study allows the City of Jaguariúna to perform a more effective occupation planning in these areas, always aiming the sustainable development and, consequently, the improvement in population’s quality of life, as well as the maintenance of environmental quality.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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The city of São Paulo has, since the beginning of the expansion of its urban sprawl, represented relations of conflicts and contradictions between society and nature. Once the way society relates to nature is defined by how the social agents themselves correlate in certain social and historical contexts, the ways of interaction between the social and natural elements will be different according to the forms of production and appropriation of the urban space. Even more evident is the case of the great national metropolis, given its demographic dimensions and historical conditions, the process of urban expansion follows a logic where spaces of better quality for housing are occupied by those of better financial conditions. Thus, although there are exceptions, the poorest people live in places less desirable, in less resilient environments of lower environmental quality, relating to nature and its phenomena with greater risks. These risks are reflected here as recurring flooding, mudslides and landslides for which the rain is constantly blamed. So we have a situation where it is clear that a weather phenomenon differently interacts with different social groups. In this context, the study was conducted to compare extreme events occurred in two regions of São Paulo: the Freguesia do O, in the north side, and M'Boi Mirim, in the south side. Both are regions with large number of risk areas and are in the same urban climate unit. However, they present different conditions of social vulnerability. With the investigation of each extreme rain event occurred in the two regions, in the period of 2000-2010, supplemented by field research, we tried to observe how far the rain, with his intensity and volume, can, in fact, be related to the accidents.
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In the past years, soya has increased itself as the mean agro export culture in Brazil, encouraging the expansion of its agricultural frontier throughout the country. Brazil is the second biggest soya producer around the world, with a 59,8 million ton production in 2008, according to the Instituto Brasileiro de Geografia e Estatística (IBGE), only behind United States. Around the country, the four leading producer states are Mato Grosso, Paraná, Rio Grande do Sul e Goiás. Therefore, geotechnologies may be used to monitor use and soil occupation in various analyzes periods. In this review, the tools are important to illustrate the soya production areas and also the weather behavior around its production evolution in the territory through the years. Its utilization can contribute to the evolution and optimization around real time monitoring of the Agricola cultures, without being necessary to be in the area with a low financial cost. Generally, this information is strongly important for decision makers in both government and private sector, as soon as the achievement information regards the quantification of area, yield and development of agricultural crops are essential to the economic behavior of culture during the season and even beyond. By obtaining data regarding climate crops 2008/09 and 2009/10, held the climatic water balance calculation based on the dynamics of water storage in soil temperature and precipitation data, interpolation of the data through the interpolator (IDW) that generated thematic precipitation maps. Overall, the use of geotechnology to monitor agricultural areas, can strongly contribute to this monitoring, generating raw material for further analysis at low cost
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This research presents the result of the engineering geological mapping in a 1:50.000 scale, in Bairro do Peão region, in Piracaia (SP), represented by means of homogeneous units which are susceptible to superficial dynamic processes. To serve as basis for the elaboration of a Chart of Susceptibility to Processes of Superficial Dynamic, a series of physical samples was collected, considering erosive processes and registers of information of usage and soil occupation. The procedure used for elaborating the geotechnical chart is based on Vedovello (2000), which suggests the physiographic compartimentation of the area through photointerpretation and further geotechnical characterization of the selected samples. The geotechnical characterization of the samples was made by identifying the features and properties of the material and forms of the physical environment determining the geotechnical conditions through geological-geotechnical profile descriptions typical of/ peculiar to each unit defined in the area. Thus, for each unit selected, the susceptibility level was established in very high, high, average and low, as well as the prevalent erosive processes.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)