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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Paleovegetation and paleoclimate dynamics during the last 7000 years in the Atlantic forest of Southeastern Brazil based on palynology of a waterlogged sandy soil

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Autor(es):
Buso Junior, Antonio Alvaro [1] ; Ruiz Pessenda, Luiz Carlos [1] ; Mayle, Francis Edward [2, 3] ; Lorente, Flavio Lima [1] ; Volkmer-Ribeiro, Cecilia [4] ; Schiavo, Jolimar Antonio [5] ; Pereira, Marcos Gervasio [6] ; Bendassolli, Jose Albertino [7] ; Damasio Macario, Kita Chaves [8] ; Siqueira, Geovane Souza [9]
Número total de Autores: 10
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, 14C Lab, Ave Centenario 303, BR-13400970 Piracicaba, SP - Brazil
[2] Univ Reading, Ctr Past Climate Change, Reading RG6 6DW, Berks - England
[3] Dept Geog & Environm Sci, Reading RG6 6DW, Berks - England
[4] Fundacao Zoobot Rio Grande Sul, Museu Ciencias Nat, Rua Dr Salvador Franca 1427, BR-90690000 Porto Alegre, RS - Brazil
[5] Univ Estadual Mato Grosso do Sul, Unidade Univ Aquidauana, Rodovia Aquidauana, Km 12, Aquidauana, MS - Brazil
[6] Univ Fed Rural Rio de Janeiro, Inst Agron, Dept Solos, BR-465 Seropedica, RJ - Brazil
[7] Univ Sao Paulo, Stable Isotope Lab, Ave Centenario 303, BR-13400970 Piracicaba, SP - Brazil
[8] Univ Fed Fluminense, Inst Fis, Av Gen Milton Tavares de Souza S-N, BR-24210346 Niteroi, RJ - Brazil
[9] Vale Nat Reserve, BR 101 Highway, Km 122, Linhares, ES - Brazil
Número total de Afiliações: 9
Tipo de documento: Artigo Científico
Fonte: REVIEW OF PALAEOBOTANY AND PALYNOLOGY; v. 264, p. 1-10, MAY 2019.
Citações Web of Science: 0
Resumo

Mineral soils are usually considered inappropriate for pollen analysis because of the poor quality of pollen and spore preservation and the disturbed stratigraphy. However, here we present a 57 cm core, collected from a waterlogged sandy soil in the lowland Atlantic Forest of SE Brazil, which shows good stratigraphy and good preservation of pollen and spores since similar to 7000 cal. BP, both in organic and in mineral horizons. By the other hand, the decomposition of the organic matter and its translocation along the soil profile led to changes of C and N results (TOC, TN, C/N, delta C-13 and delta N-15). Mid-Holocene paleoclimate inferences from this study are in accordance with climate fluctuations presented in previous studies for Central, Southeastern and Southem Brazil, when a change to more humid climate occurred at similar to 7000 cal BP. The process responsible for the presence of biological proxies along this sandy soil profile involves the continuous deposition of these proxies together with litter and sand, and the subsequent decomposition of the litter. Ultimately, this process led to the vertical accretion of the sand with the more resistant organic structures preserved in stratigraphic sequence. The preservation of pollen and spores along the profile is probably caused by low pH and redoximorphic conditions due to water saturation. This study suggests the potential for retrieving useful paleoecological information from mineral and organic horizons of tropical waterlogged sandy soils, which is especially useful for those regions where traditional pollen archives (lakes and peat bogs) are absent. (C) 2019 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 11/00995-7 - Estudos paleoambientais interdisciplinares na costa do Espírito Santo
Beneficiário:Luiz Carlos Ruiz Pessenda
Linha de fomento: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
Processo FAPESP: 07/06222-4 - Dinâmica ambiental holocênica (vegetação, clima e nível relativo marinho) baseada em estudos interdisciplinares de alta resolução, no litoral norte do Estado do Espírito Santo
Beneficiário:Antonio Alvaro Buso Junior
Linha de fomento: Bolsas no Brasil - Mestrado
Processo FAPESP: 10/18091-4 - Dinâmica dos Espodossolos, da vegetação e do clima durante o quaternário tardio na região nordeste do estado do Espírito Santo
Beneficiário:Antonio Alvaro Buso Junior
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 07/03615-5 - Reconstrução da vegetação e clima desde o Holoceno médio no Brasil
Beneficiário:Luiz Carlos Ruiz Pessenda
Linha de fomento: Auxílio à Pesquisa - Regular