A dinâmica das florestas alagadas durante o holoceno no litoral de Calçoene, Amapá
The integration of palynological and spectrophometric data with radiocarbon dating of sediment cores has allowed to propose developing model and vegetation dynamic according to climatic and relative sea-level changes during the Late Holocene in the Calçoene Coastal Plain- Amapá. Thus, this work s...
| Autor principal: | GUIMARÃES, José Tasso Felix |
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| Grau: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Pará
2019
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/11606 |
| Resumo: |
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The integration of palynological and spectrophometric data with radiocarbon dating of
sediment cores has allowed to propose developing model and vegetation dynamic according to
climatic and relative sea-level changes during the Late Holocene in the Calçoene Coastal Plain-
Amapá. Thus, this work suggests three periods characterized by marine influence between 2000-
800, 500-300, e 80 years BP - modern, as well as, two fluvial periods between 800-500 years BP
and 300-80 years BP. The analysis of current patterns of geobotanical units distribution and
palaeovegetation indicate a mangrove (311 Km 2 ) and várzea forest (684 Km 2 ) migration on
inundated field (1.021 Km 2 ) positioned in elevated topographically areas of this coastal plain,
which may be related to a local relative sea-level rise. |