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vol.24Produção de Mudas de Ipê-amarelo (Tabebuia serratifolia) em Resposta a Fertilização NitrogenadaCarbono, Nitrogênio e Abundância Natural de δ13C do Solo em Coberturas Florestais índice de autoresíndice de assuntospesquisa de artigos
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Floresta e Ambiente

versão impressa ISSN 1415-0980versão On-line ISSN 2179-8087

Resumo

CARVALHO, Daniel Costa de; PEREIRA, Marcos Gervasio; GUARESCHI, Roni Fernandes  e  MARANHAO, Deyvid Diego Carvalho. Carbon and Nitrogen Stock and Natural Abundance of δ13C in the Pirapitinga Ecological Station, MG. Floresta Ambient. [online]. 2017, vol.24, e20150092.  Epub 10-Abr-2017. ISSN 2179-8087.  https://doi.org/10.1590/2179-8087.009215.

The integrated assessment of physical attributes, carbon (StockC) and nitrogen (StockN) stock, and natural abundance of δ13C are effective in detecting landscape changes. Therefore, this study aimed to evaluate and compare the bulk density, StockC, StockN and natural abundance of δ13C in the soil profiles of different vegetation types of the Pirapitinga Ecological Station (EEP), to elucidate the changes in this area. For this, soil samples were collected and analyzed at depths up to one meter in different vegetation types of the EEP. The highest soil clay content and density of plant of forest vegetation promoted higher levels of StockC and StockN and lower bulk density values than the other grassland vegetation. The δ13C revealed that the areas of forest vegetation types were previously occupied mainly by plants of the C4 photosynthetic cycle, similar to grassland currently found in the EEP.

Palavras-chave : dynamics of landscape; soil organic matter; isotopic composition; Cerrado vegetation types.

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