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Academia Brasileira de Ciências
2012
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=32723112010 |
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- Restinga forests of the Brazilian coast: richness and abundance of tree species on different soils Luiz F.S. Magnago Sebastião V. Martins Carlos E.G.R. Schaefer Andreza V. Neri Multidisciplinaria (Ciencias Naturales y Exactas) Vegetation Sandy Soils Flooded Forests Marine influence Riparian forests The aim of this study was to determine changes in composition, abundance and richness of species along a forest gradient with varying soils and flood regimes. The forests are located on the left bank of the lower Jucu River, in Jacarenema Natural Municipal Park, Espírito Santo. A survey of shrub/tree species was done in 80 plots, 5x25 m, equally distributed among the forests studied. We included in the sampling all individuals with >3.2 cm diameter at breast height (1.30 m). Soil samples were collected from the surface layer (0-10 cm) in each plot for chemical and physical analysis. The results indicate that a significant pedological gradient occurs, which is influenced by varying seasonal groundwater levels. Restinga forest formations showed significant differences in species richness, except for Non-flooded Forest and Non-flooded Forest Transition. The Canonical Correlation Analysis (CCA) showed that some species are distributed along the gradient under the combined influence of drainage, nutrient concentration and physical characteristics of the soil. Regarding the variables tested, flooding seems to be a more limiting factor for the establishment of plant species in Restinga forests than basic soil fertility attributes. 2012 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32723112010 http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.3 Vol.84