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| PESSENDA, L. C. R.; GOUVEIA, S. E. M.; LEDRU, M. P.; SIFEDDINE, A.; MENOR, E.; BOULET, R.; FILIZOLA, H. F.; RIBEIRO, A. S.; FREITAS, A.; ARAVENA, R.; BENDASSOLLI, J. A.; GUERRA, M. F.. |
| Tipo: Separatas |
Palavras-chave: Solo. |
| Ano: 2003 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1077823 |
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| PESSENDA, L. C. R.; GOUVEIA, S. E. M.; LEDRU, M. P.; ARAVENA, R.; RICARDI-BRANCO, F. S.; BENDASSOLLI, J. A.; RIBEIRO, A. S.; SAIA, S. E. M. G.; SIFEDDINE, A.; MENOR, E. de A.; OLIVEIRA, S. M. B. de; CORDEIRO, R. C.; FREITAS, A. M. de M.; BOULET, R. : FILIZOLA, H. F.; FILIZOLA, H. F.. |
| The aim of this research was to reconstruct vegetation changes (with climate inferences) that occurred during the Holocene in the Fernando de Noronha Island, Pernambuco State, northeastern Brazil. The research approach included the use of geochemical (mineralogy, elemental), carbon isotopes (?13C, 14C) and pollen analyses in soil organic matter (SOM) and sediments collected in Lagoa da Viração and Manguezal do Sueste. The carbon isotopes data of SOM indicated that there was no significant vegetation changes during the last 7400 BP, suggesting that the climate was not the determinant factor for the vegetation dynamic. The pollen analysis of the sediment of a core collected in the Lagoa da Viração showed the absence of Quaternary material in the period... |
| Tipo: Separatas |
Palavras-chave: Paleobotânica. |
| Ano: 2008 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/15578 |
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| CORDEIRO, R. C.; TURCQ, B.; MOREIRA, L. S.; RODRIGUES, R. de A. R.; SIMÕES FILHO, F. F. L.; MARTINS, G. S.; SANTOS, A. B.; BARBOSA, M.; CONCEIÇÃO, M. C. G. da; RODRIGUES, R. de C.; EVANGELISTA, H.; MOREIRA-TURCQ, P.; PENIDO, Y. P.; SIFEDDINE, A.; SEOANE, J. C. S.. |
| Interpreting the geological record of Amazon biomass combustion requires comparing charcoal accumulation rates in various biomes at different time scales. Charcoal accumulation rates, a proxy for palaeofire records, were obtained in sediment cores from Amazon lakes surrounded by several vegetation types and from a reservoirs in an intense land use change region. The records presented in this study were obtained in the following areas i) a reservoirs in Alta Floresta region (northern Mato Grosso State); ii) Lago do Saci (southern Pará State), a lake close to Alta Floresta and located at the southern border of Pará State; iii) a bog in an ecotone area in the Humaitá region (southern Amazonas State); iv) lakes in lateritic iron crust of the Carajás Hills... |
| Tipo: Artigo de periódico |
Palavras-chave: Carvão Vegetal.; Amazonia; Charcoal; Climate change. |
| Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1005589 |
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| GOUVEIA, S. E. M.; PESSENDA, L. C. R.; ARAVENA, R.; LEDRU, M. P.; SIFEDDINE, A.; RICARDI-BRANCO, F.; CORDEIRO, R. C.; MENOR, E. A.; SAIA, S. E. M. G.; OLIVEIRA, S. M. B.; BENDASSOLLI, J. A.; RIBEIRO, A. S.; FREITAS, A. M. M.; BOULET, R.; FILIZOLA, H. F.. |
| Tipo: Separatas |
Palavras-chave: Vegetação; Clima. |
| Ano: 2006 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1032126 |
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