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A fragmentacao da vegetacao inserida no ambiente urbano, decorrente da ocupacao desordenada do solo, gera transformacoes significativas na dinâmica dos fatores termodinâmicos. Este trabalho analisa o sistema microclimatico urbano, subsistema termodinâmico da Universidade Federal da Paraiba, em diferentes niveis de fragmentacao. Foram realizadas coletas de dados de temperatura e umidade relativa do ar, em tres pontos com diferentes fragmentacoes, durante os periodos: chuvoso (marco a agosto) e seco (setembro a fevereiro). Tambem foi avaliado o nivel de estresse termico e foi efetuada a classificacao dos tipos de cobertura de solo em cada ponto monitorado, resultando em nove classes, de acordo com a percentagem da presenca de vegetacao, de materiais permeaveis e de materiais impermeaveis, tendo sido utilizados metodos quantitativos e qualitativos. Os resultados demonstraram que os diferentes niveis de fragmentacao da Mata Atlântica, no espaco urbano da UFPB, tem alterado o campo termico, e consequentemente alterado tambem o conforto termico desse espaco. A B S T R A C T The fragmentation of vegetation inserted in the urban environment, resulting from the disorderly occupation of soil, generates significant transformation in the dynamics of the thermodynamic factors. This paper analyzes the urban microclimate system, thermodynamic subsystem at the Federal University of Paraiba, in different levels of fragmentation. Temperature data collection and relative humidity were held at three points with different fragmentation during periods: rainy (March to August) and dry (September to February). It also assessed the level of thermal stress and it was performed the classification of the soil cover types at each point monitored, resulting in nine classes, according to the percentage of the presence of vegetation, for permeable materials and impervious materials, having been used quantitative and qualitative methods. The results demonstrated that the different levels of fragmentation of the Atlantic Forest, in the urban space from UFPB, have changed the thermal field, and consequently also changed the thermal comfort of this space. Keywords: Microclimate, fragmentation levels, UFPB

Análise da Variação Microclimática em Diferentes Níveis de Fragmentação (Analysis of Microclimate Variation at Different Levels of Fragmentation)