O uso de geotecnologias para mapeamento de áreas verdes urbanas e análise da percepção ambiental no município de São Paulo

• Autor(a) principal: Horta, Isabela Taici Lopes Gonçalves [UNESP]
• Data de Publicação: 2015
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/136561; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2016-03-10/000859158.pdf
• topic: Geografia urbana; Geotecnologia ambiental; Geoprocessamento; Mapeamento do meio ambiente; Área verde urbana; Qualidade ambiental; São Paulo (SP)

Over the theme Urban Green Areas this study was intended to apply methodologies to to analyze environmental quality. The study local included areas around Ibirapuera Park, Luz Garden and República Square at Sao Paulo city. The methodology consisted on application of IFU (Urban Forest Index) on high resolution orbital images after supervised classification. The image's bands composition adopt the follow pattern: Red: band 4, Green: band 3, Blue: band 2. The supervised classification was made by MultiSpec software on ECHO Spectral Spatial function that findings were organized in ranges according to the Urban Foresty Lab's USP - ESALQ (University of Sao Paulo - Luiz de Queiroz College of Agriculture). The findings from the classification were satisfactory, with Kappa index above 80%. Over the IFU findings, its showed little afforestation around República Square (0,75) and to Luz Garden (0,55), on the contrary its showed a good afforestation around Ibirapuera Park (1,33). A research over the environmental perception was realized at the three study's areas, by questionnaires made with the attenders. Lack of security and support at República Square were related, differently at Luz Garden and at Ibirapuera Park, however in this last area the access to the Park is just by cars what turns the democratization of the green area harder, besides this, there are some unknowing areas by the attenders into the Park