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Brazilian Journal of Botany

On-line version ISSN 1806-9959

Abstract

GUIMARAES, João C. C. et al. Dynamics of the shrub-tree component of an alluvial gallery forest on the Poços de Caldas Plateau, MG State, Brazil. Rev. bras. Bot. [online]. 2008, vol.31, n.4, pp. 621-632. ISSN 1806-9959.  http://dx.doi.org/10.1590/S0100-84042008000400008.

The dynamics of the shrub-tree component was investigated in an alluvial gallery forest in Poços de Caldas, Minas Gerais, from 1998 to 2005. The main objective of this study was to verify if the rates of the dynamics of the alluvial gallery forests are less than other tropical riparian forest formations. Seasonal flooding was also studied to see if it generates a spatial variation in the dynamics of going from the stream side towards the forest border. The sample consisted of 101, 10×10-meter plots that were distributed in five blocks extending approximately 8 km along the Antas River's forest. Each block was divided into three sectors (stream side, forest interior, and forest edge). Compared with other tropical forests, especially the riparian ones, this forest showed lower rates in terms of structural alterations. The forest edge is more dynamic, mainly due to the greater amount of sunlight, which supplies an adequate environment for species with a short life cycle.

Keywords : anthropic impacts; seasonal flooding; self-thinning; water saturation.

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