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A bacia hidrografica do rio Gramame, no litoral sul paraibano, apresenta diversas nascentes perenes de agua com vazoes significativas que atendem a comunidades locais para diversos usos. Este trabalho teve como objetivo analisar quatro series de vazoes de captacoes de nascentes na regiao sudoeste da bacia e de dados pluviometricos, quanto a sua homogeneidade, entre os anos de 2010 e 2013. A questao motivadora da analise foi a suposta diminuicao das vazoes de captacao das nascentes por consequencia da construcao de estradas e desmatamentos em areas do entorno dessas nascentes. Para a analise da homogeneidade das series, foram empregados testes estatisticos para determinacao dos possiveis pontos de ruptura e de verificacao da estacionariedade. Foi constatado que houve ruptura em todas as series de vazoes analisadas. Analysis of non-homogeneities of time series of flow in sources in the Gramame River basin, Paraiba State, Brazil A B S T R A C T The Gramame river basin on the south coast of Paraiba State, has several perennial springs with significant flows that serve local communities for various uses. However, the construction of roads, in areas around the springs, and recent deforestation indicated to have caused the decrease in flows captured from sources in the basin. This work aimed at analyzing four data series of flows captured from sources in the southwestern basin and the rainfall data series searching to verify their homogeneity, between the years 2010 and 2013. To analyze the homogeneity of the series, statistical tests were used to find significant change points and to verify the stationarity. It was found that rupture occurred in all series of flow analyzed. Keywords: flow from springs, hydrometeorological time series, groundwater.

Análise de não Homogeneidades de Séries de Vazão de Captações de Nascentes na Bacia Hidrográfica do Rio Gramame, PB, Brasil