Flora e estrutura do estrato arbóreo e relações solo-vegetação de cerradão em Barão de Melgaço, Pantanal de Mato Grosso, Brasil

• Autor(a) principal: Lima Júnior, Gilmar Alves
• Data de Publicação: 2007
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2499
• topic: Cerradão; Florística; Pantanal; Mato Grosso; Woodland savanna; Floristics; Pantanal; Mato Grosso; CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA::ECOLOGIA DE ECOSSISTEMAS

The objective of this study was to analyze the vegetation- soil relation of the tree flora of two areas of woodland savanna in a RPPN SESC Pantanal (Nature Patrimony Private Reserve NPPR), Barão de Melgaço, state of Mato Grosso (16°37 S, 56°15 W). Five of 20 x 50 m plots were marked in each area and divided in sub-plots of 10m2, all tree individuals of diameter at breast height = 4.7 cm were sampled. The phytosociologic parameters, species richness and diversity were calculated. Composite samples for the soil analysis were collected in the surface layer (0-20 cm). A total of 72 species, in 56 genera and 28 botanic families were registered in the area of 1 ha; 9 and 30 species were exclusive to area I and II, respectively. The families Fabaceae, Malvaceae and Bignoniaceae were represented by the highest number of species. Genus Tabebuia was the richest, with 3 and 4 species in the Areas I and II, respectively. The two Cerradão areas under study were characterized as transition regions, since Cerrado as well as Seasonal Forest species were found. The analyses of soil and vegetation data (plots) showed no tendency of a relation between species occurrence and istribution and the soil in the two areas. This indicates that the influence of other factors is greater on these Pantanal areas, i.e., the deeper soil layer, difference in the position in the topographic gradient or the type of soil drainage.