Região Serrana do Estado do Rio de Janeiro e a expansão dos riscos ambientais, ações preventivas e catástrofes: o caso de Petrópolis

• Ano de defesa: 2011
• Autor(a) principal: Rodrigues, Viviane Espírito Santo
• Orientador(a): Marques, Jorge Soares
• Banca de defesa: Silva, Antônio Soares da , Guerra, Antonio José Teixeira , Costa, Nadja Maria Castilho da
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade do Estado do Rio de Janeiro
• Programa de Pós-Graduação: Programa de Pós-Graduação em Geografia
• Departamento: Centro de Tecnologia e Ciências::Instituto de Geografia
• País: BR
• Palavras-chave em Português: Petrópolis; Movimentos de massa; Inundações; Plano Diretor; Zoneamento
• Palavras-chave em Inglês: Petropolis; Mass movements; Floods; Director plan; Zoning
• Área do conhecimento CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS
• Link de acesso: http://www.bdtd.uerj.br/handle/1/13296

The city of Petrópolis, the scene of recurring environmental problems involving mass movements historically concentrated in your area more urbanized, the districts of Petrópolis (headquarter) and Cascatinha, lives in recent decades a growing population which is oriented primarily to old areas rural Itaipava, Pedro do Rio and Posse. The overall objective of the research is investigate how this growth is occurring by analyzing the geomorphological geological features of the new spaces, the predisposing factors to the new risk conditions involving the landslides and floods. Thus, was designed a prospect socio-evolutinary process of land occupation in Petropolis especially considering the demographic dynamics recorded in districts through the census from 1940. Using GIS as a tool and visual classification of IBGE OrtofotosCarta segmentation IBGE in scale 1: 25,000 were produced maps of land use for county and district detailing the urban area. In order to meet the diagnosis of risk situations was conducted a survey of the current situation of the occurrence of movements mass and flooding in the city, comparing previous surveys and verifying the distribution of occurrences and the affected population.Research highlights floods in the district of Itaipava and mass movements of the Posse. From this perspective, the study sought the city of Petropolis in its urban evolution. The analysis of recent occurrences of Defense Civil as well as between 2005/2010 compared with previous records and the impact of the tragedy in January 2011 in the mountainous region revealed that new areas of occupation are no longer just a possibility, but specific scenarios of new tragedies in Petrópolis. Finally, it was assessed the implementation of development policy and urban sprawl defined in the Master Plan of Petropolis and Use Act, and Installment Land Use, zoning analysis and its uses (rural, suburbanm urban and area of special protection), explaining how the aspects norms are being treated, what are respected and what are not met int the dynamics of space occupation.Lastly raised the prevention or not, environmental problems and social vulnerability of people living in the risky areas, taking the case in the Vista Alegre in Araras, 2nd district. With occurred in December 2010 and January 2011, especially when abrupt floods linked to landslides on the slopes Petropolis hit areas and other municipalities in the mountainous region of state of Rio de Janeiro new goals were established. He spent also included in the spot verification of the consequences of movements mass and floods in areas previously highlighted, as was the case of Cuiabá river valleys and Santo Antônio river in Itaipava.Thus, the work marched to indicate the need for greatr attention to the new occupied areas in the city, considering the nature of the territory, contributing as a benefit in preventing the risk.