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(Article of periodic en Anglais - 2013)

Document title

Mangrove vegetation changes on Holocene terraces of the Doce River, southeastern Brazil

Authors(s) and Affiliation(s)

FRANÇA M.C. (1 2 3) ; COHEN M.C.L. (1) ; PESSENDA L.C.R. (4) ; ROSSETTI D.F. (5) ; LORENTE F.L. (4) ; BUSO JUNIOR A.Á (4) ; GUIMARÃES J.T.F. (1) ; FRIAES Y. (1) ; MACARIO K. (6) ;
(1) Lab. of Coastal Dynamics, Federal Univ. of Pará, Belém, BRESIL
(2) Federal Inst. of Pará, Belém, BRESIL
(3) Climate System Research Center, Dep. of Geosciences, Univ. of Massachusetts, Amherst, ETATS-UNIS
(4) Univ. of São Paulo, 14 C Lab., Piracicaba, BRESIL
(5) National Space Resaerch Inst. (INPE), São José dos Campos, BRESIL
(6) LAC-UFF AMS Lab.-Fluminense Federal Univ, Physics Dept., Rio de Janeiro, BRESIL

Abstract

High-resolution sedimentological, geochemical and pollen analysis on sediment core from the coastal plain of the Doce River, southeastern Brazil, revealed changes in the depositional system and vegetation caused by combined action of oscillations in relative sea-level (RSL) and sedimentary supply during the Holocene. Two main phases were discerned using sedimentary features, δ13C, δ15N, total organic carbon (TOC), total nitrogen (N), C/N and cluster analysis of pollen data, temporally synchronized with radiocarbon age dating. It is shown that during the early Holocene occurred a lagoon system surrounded by mangroves, and that in the middle and late Holocene the mangroves shrank and freshwater vegetation expanded. This geomorphologic and vegetation evolution is in agreement with the mid-Holocene RSL maximum above present RSL and subsequent fall to the present time.

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 110 [pp. 59-69]

Bibliographic references : 2 p.

Collation : 8 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2013.06.011

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
Refdoc record number (ud4) : 28016409 : Permanent link - XML version
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