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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
22/12/2008 |
Data da última atualização: |
22/11/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
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. |
Afiliação: |
Luiz C. R. Pessenda, CENA/USP; Susy E. M. Gouveia, CENA/USP; Marie-Pierre Ledru, Institut de Recherche pour le Développement; Ramón Aravena, University of Waterloo; Fresia Soledad Ricardi-Branco, Instituto de Geologia-UNICAMP; José A. Bendassolli, CENA/USP; Adauto de S. Ribeiro, Autônomo; Soraya Elaine Marques Gouveia Saia, CENA/USP; Abdelfettah Sifeddine, Institut de Recherche pour le Développement; Eldemar de A. Menor, Autônomo; Sônia Maria B. de Oliveira, Instituto de Geociêncas-USP; Renato C. Cordeiro, Autônomo; Ângela M. de M.Freitas, Autônoma; René Boulet, Autônomo; HELOISA FERREIRA FILIZOLA, CNPMA. |
Título: |
Interdisciplinary paleovegetation study in the Fernando de Noronha Island (Pernambuco State), northeastern Brazil. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Anais da Academia Brasileira de Ciências, v. 80, n. 4, p. 1-15, 2008. |
Idioma: |
Inglês |
Conteúdo: |
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 between 720 BP and 90 BP. The mineralogical analysis of deeper layer showed the presence of diopside indicating this material was developed ?in situ?. Only in the shallow part of the core were found pollen of similar plant species of the modern vegetation. The geochemistry and isotope results, in association with the sediment type and pollen analyses of sediment samples of Manguezal do Sueste, indicated variations in the vegetation and in its location since the middle Holocene. Such variations can be associated with climatic events and sea level oscillations and also with anthropogenic events considering the last five hundred years. |
Palavras-Chave: |
Paleobotânica. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150374/1/2008CP-06.pdf
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Marc: |
LEADER 02347naa a2200301 a 4500 001 1015578 005 2016-11-22 008 2008 bl uuuu u00u1 u #d 100 1 $aPESSENDA, L. C. R. 245 $aInterdisciplinary paleovegetation study in the Fernando de Noronha Island (Pernambuco State), northeastern Brazil.$h[electronic resource] 260 $c2008 520 $aThe 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 between 720 BP and 90 BP. The mineralogical analysis of deeper layer showed the presence of diopside indicating this material was developed ?in situ?. Only in the shallow part of the core were found pollen of similar plant species of the modern vegetation. The geochemistry and isotope results, in association with the sediment type and pollen analyses of sediment samples of Manguezal do Sueste, indicated variations in the vegetation and in its location since the middle Holocene. Such variations can be associated with climatic events and sea level oscillations and also with anthropogenic events considering the last five hundred years. 653 $aPaleobotânica 700 1 $aGOUVEIA, S. E. M. 700 1 $aLEDRU, M. P. 700 1 $aARAVENA, R. 700 1 $aRICARDI-BRANCO, F. S. 700 1 $aBENDASSOLLI, J. A. 700 1 $aRIBEIRO, A. S. 700 1 $aSAIA, S. E. M. G. 700 1 $aSIFEDDINE, A. 700 1 $aMENOR, E. de A. 700 1 $aOLIVEIRA, S. M. B. de 700 1 $aCORDEIRO, R. C. 700 1 $aFREITAS, A. M. de M. 700 1 $aBOULET, R. : FILIZOLA, H. F. 700 1 $aFILIZOLA, H. F. 773 $tAnais da Academia Brasileira de Ciências$gv. 80, n. 4, p. 1-15, 2008.
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Embrapa Meio Ambiente (CNPMA) |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
01/04/1998 |
Data da última atualização: |
28/12/2018 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
WOLF, M. A.; NUNES, C. D. M.; ZECH, W.; SCHROTH, G. |
Afiliação: |
Universidade de Hamburg; CLEY D. M. NUNES, CPAA. |
Título: |
Spatial and temporal data for assessing layout and sustainability of perennial polycultures - consequences of growth heterogeneity. |
Ano de publicação: |
1998 |
Fonte/Imprenta: |
In: SHIFT WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentations and posters... Hamburg: GKSS, 1998. |
Páginas: |
p. C36. |
Idioma: |
Inglês |
Conteúdo: |
The canopy structure of trees in polyculture systems provide data for the quantitative investigation and improvement of the system's spatial layout: planting distances can be corrected. |
Palavras-Chave: |
Agrofloresta; Amazonas; Brasil; Fertilizers application; Spacing; Tropical rain forest. |
Thesagro: |
Adubação; Cultivo Multiplo; Espaçamento; Essência Florestal; Floresta Tropical Úmida. |
Thesaurus NAL: |
agroforestry; canopy; forest trees; multiple cropping. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/124272/1/C36.pdf
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Marc: |
LEADER 01193nam a2200337 a 4500 001 1667733 005 2018-12-28 008 1998 bl uuuu u00u1 u #d 100 1 $aWOLF, M. A. 245 $aSpatial and temporal data for assessing layout and sustainability of perennial polycultures - consequences of growth heterogeneity. 260 $aIn: SHIFT WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentations and posters... Hamburg: GKSS$c1998 300 $ap. C36. 520 $aThe canopy structure of trees in polyculture systems provide data for the quantitative investigation and improvement of the system's spatial layout: planting distances can be corrected. 650 $aagroforestry 650 $acanopy 650 $aforest trees 650 $amultiple cropping 650 $aAdubação 650 $aCultivo Multiplo 650 $aEspaçamento 650 $aEssência Florestal 650 $aFloresta Tropical Úmida 653 $aAgrofloresta 653 $aAmazonas 653 $aBrasil 653 $aFertilizers application 653 $aSpacing 653 $aTropical rain forest 700 1 $aNUNES, C. D. M. 700 1 $aZECH, W. 700 1 $aSCHROTH, G.
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