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R E S U M O O objetivo do presente estudo foi avaliar a influencia da precipitacao interna sobre a composicao e estrutura da regeneracao natural em um trecho de floresta ombrofila densa aluvial no estuario amazonico. Os dados foram coletados de fevereiro a julho de 2016, em quatro parcelas de 20 x 20m, subdivididas em subparcelas de 1 x 1m para analise da composicao floristica e estrutural da regeneracao e instalados 11 pluviometros para amostragem da precipitacao. Houve pouca variacao na quantidade de individuos, familias, generos e especies entre o periodo chuvoso e o menos chuvoso.  Pariana campestris Aubl., Anthurium sinuatum Benth. ex, Schott, Costus arabicus L. e Costus spicatus (Jacq.) Sw. foram mais representativas devido aos impactos antropicos na area. Conclui-se que nao houve influencia da precipitacao interna na abundância e na riqueza de especies da regeneracao natural. Palavras-chave: Floresta de varzea; floristica; estrutura. A B S T R A C T The objective of the present study was to evaluate the influence of internal precipitation on the composition and structure of natural regeneration in an alluvial dense ombrophilous forest in the Amazonian estuary. The data were collected from february to july 2016, in four 20 x 20m plots, subdivided into 1x1m subplots to analyze the floristic and structural composition of the regeneration and using 11 pluviometers to sample the precipitation. There was little variation in the number of individuals, families, genera and species between the rainy season and the less rainy season. Pariana campestris Aubl., Anthurium sinuatum Benth. Schott, Costus arabicus L. and Costus spicatus (Jacq.) Sw. were more representative due to anthropic impacts on the area. It was concluded that there was no influence of internal precipitation on the abundance and richness of natural regeneration species. Keywords: Floodplain forest, Floristic, Structure.

revista brasileira de geografia física

Influência da precipitação pluviométrica na regeneração natural em trecho de uma floresta ombrófila densa aluvial (Influence of rainfall in natural regeneration in a dense ombrophylous forest alluvial in eastern amazona, Pará, Brasil