1000 resultados para expansão territorial urbana


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Pós-graduação em Geografia - IGCE

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Pós-graduação em Geografia - FCT

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Geografia - IGCE

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Pós-graduação em Geografia - IGCE

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Despite the current Environmental Legislation resolution, concerning the protection of the Permanent Preservation Areas (PPA), be quite rigid, in practice, is observed noncompliance with the minimum limits of protection, especially in urban areas where, historically, the urbanization processes have been executed without compliance with the minimum standards of urban and environmental planning. Given the above, the present study aimed to analyze the urban sprawl evolution at the Olinda stream APP, located in the city of Rio Claro - SP. By means of the visual interpretation of aerial photographs in the GIS/ARCGIS environment, thematic maps of the urban sprawl of the years 1972, 1995 and 2010, as well as the Olinda Stream APP surroundings, were prepared. From the maps, it was possible to measure the occupation density for each scenario and indicate from which period the urbanization process has intensified. It was also possible to quantify the loss of vegetation area and indicate the major environmental problems in the basin of the Olinda stream. Therefore, the development of this research shows its importance, considering that its results can support the public administration, assisting in proper planning of land use and occupation in urban watersheds

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The fundamental objective of this research was analyzed the urban expansion’s process of municipality Piracicaba, it is located in the countryside of São Paulo state. The use and occupation of land by observing the social and environmental impacts related, including the Protection Permanent Area (PPA) of urban fringes according to the successive expansions of Piracicaba city in 2006, the publication year of the current city hall director planning, until 2011, when the approval of the eighth and most recent update of Piracicaba’s expanding the perimeter. The development of the study was conducted with the support of bibliographic, cartographic, considering maps and satellite images, further more field work. Thematic maps of the current urban expansion were created, urban voids and land use were developed, typifying the occupation according to the activities established thus through the analysis of land use through cartographic interpretation, as research in locus. To assist the research geotechnologies were used, both for production and for the interpretation of cartographic materials, specially in Geographic Information Systems

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In most brazilian cities, urban growth has occurred without adequate planning. Consequently, portions of the city were being occupied, often areas unfit for use and occupation of land, causing risks to local residents and decline of urban environmental quality. One of the most frequent problems is the riverbank occupation, causing the deforestation of the riparian vegetation. Given the above, this paper aimed to map the urban sprawl of Rio Claro/SP, as well as riparian vegetation in the vicinity of Corumbataí in the area including the urban area. For this purpose, GIS techniques were used in order to prepare the thematic map of urban expansion, as well as a map of the riparian vegetation through interpretation of aerial photographs in the environment of ARCGIS. From the maps, an analysis of “Plano Diretor” was made in order to verify if the current occupation of urban land meets the stipulations of this legal instrument