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	Provedor de dados Rev. Bras. Bot. (2) Autor Meguro,Marico (2) Delitti,Welington Braz Carvalho (1) Pausas,Juli Garcia (1) Vincent,Regina de Castro (1) Palavra-chave "Quadrilátero Ferrífero" (1) Allometry (1) Carbon (1) Cerrados (1) Ferruginous "campo rupestre" (1) Metalliferous soil (1) Nutrient (1) Plant-soil relationships (1) Savannas (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2008 (1) 2006 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Influence of soil properties on the abundance of plant species in ferruginous rocky soils vegetation, southeastern Brazil Rev. Bras. Bot. Vincent,Regina de Castro; Meguro,Marico. Ferruginous "campos rupestres" are a particular type of vegetation growing on iron-rich primary soils. We investigated the influence of soil properties on plant species abundance at two sites of ferruginous "campos rupestres" and one site of quartzitic "campo rupestre", all of them in "Quadrilátero Ferrífero", in Minas Gerais State, southeastern Brazil. In each site, 30 quadrats were sampled to assess plant species composition and abundance, and soil samples were taken to perform chemical and physical analyses. The analyzed soils are strongly acidic and presented low fertility and high levels of metallic cations; a principal component analysis of soil data showed a clear segregation among sites due mainly to fertility and heavy metals content, especially... Tipo: Info:eu-repo/semantics/article Palavras-chave: Ferruginous "campo rupestre"; Metalliferous soil; Plant-soil relationships; "Quadrilátero Ferrífero". Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000300002 Biomass and mineralmass estimates in a "cerrado" ecosystem Rev. Bras. Bot. Delitti,Welington Braz Carvalho; Meguro,Marico; Pausas,Juli Garcia. This work aimed to develop allometric equations for tree biomass estimation, and to determine the site biomass in different "cerrado" ecosystems. Destructive sampling in a "campo cerrado" (open savanna) was carried out at the Biological Reserve of Moji-Guaçu, State of São Paulo, southeastern Brazil. This "campo cerrado" (open savanna) grows under a tropical climate and on acid, low nutrient soils. Sixty wood plants were cut to ground level and measurements of diameter, height and weight of leaves and stems were taken. We selected the best equations among the most commonly used mathematical relations according to R² values, significance, and standard error. Both diameter (D) and height (H) showed good relationship with plant biomass, but the use of these... Tipo: Info:eu-repo/semantics/article Palavras-chave: Allometry; Carbon; Cerrados; Nutrient; Savannas. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042006000400003 Registros recuperados: 2 Primeira ... 1 ... Última

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