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Revista Árvore

Print version ISSN 0100-6762On-line version ISSN 1806-9088

Abstract

SILVA, Luciana Álvares da  and  SCARIOT, Aldicir. Arboreal community of a seasonal deciduous forest on limestone outcrop in São Domingos - Goiás, Parana river Basin, Brazil. Rev. Árvore [online]. 2004, vol.28, n.1, pp.61-67. ISSN 0100-6762.  https://doi.org/10.1590/S0100-67622004000100008.

The Parana River basin - an area of 5,940,382 ha located in Brazil- has a highly diverse phytophysiognomy and scarce flora information. Wood extraction and pasture activities have decisively contributed to the removal of vegetation in this area. This study was carried out in a seasonal deciduous forest on limestone outcrop (approximately 13º41'16" S and 46º44'20" W) on Canada Farm (São Domingos-GO.) Twenty -five plots of 20 m x 20m (1 ha) were randomly allocated on parallel lines 100 m apart. Trees with stem diameter at 1.3 m breast height (DBH) > 5 cm were sampled and their DBH, maximum height and species determined. In the phytosociological study, 924 individuals comprising 48 species, 38 genera and 24 families were sampled. The species with the highest importance value (IV) were Myracrodruon urundeuva (36.09%), Pseudobombax tomentosum (34.75%), Dilodendron bipinnatum (26.61%), Combretum duarteanum (22.19%), Jacaranda brasiliana (21.57%), Commiphora leptophloeos (19.18%), Astronium fraxinifolium (13.84%), Tabebuia impetiginosa (13.79%), Pseudobombax longiflorum (11.64%) and Machaerium scleroxylon (10.00%), comprising 69.9% of the total IV. Diversity was close to that found in other seasonal deciduous forest studies in the region.

Keywords : Phytosociology; seasonal deciduous forest.

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