The Volta Grande do Xingu: reconstruction of past environments and forecasting of future scenarios of a unique Amazonian fluvial landscape
The Xingu River is a large clearwater river in eastern Amazonia and its downstream sector, known as the Volta Grande do Xingu ("Xingu Great Bend"), is a unique fluvial landscape that plays an important role in the biodiversity, biogeochemistry and prehistoric and historic peopling of Amazo...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2015-12-01
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| Series: | Scientific Drilling |
| Online Access: | http://www.sci-dril.net/20/21/2015/sd-20-21-2015.pdf |
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Article |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
A. O. Sawakuchi G. A. Hartmann H. O. Sawakuchi F. N. Pupim D. J. Bertassoli M. Parra J. L. Antinao L. M. Sousa M. H. Sabaj Pérez P. E. Oliveira R. A Santos J. F. Savian C. H. Grohmann V. B. Medeiros M. M. McGlue D. C. Bicudo S. B. Faustino |
| spellingShingle |
A. O. Sawakuchi G. A. Hartmann H. O. Sawakuchi F. N. Pupim D. J. Bertassoli M. Parra J. L. Antinao L. M. Sousa M. H. Sabaj Pérez P. E. Oliveira R. A Santos J. F. Savian C. H. Grohmann V. B. Medeiros M. M. McGlue D. C. Bicudo S. B. Faustino The Volta Grande do Xingu: reconstruction of past environments and forecasting of future scenarios of a unique Amazonian fluvial landscape Scientific Drilling |
| author_facet |
A. O. Sawakuchi G. A. Hartmann H. O. Sawakuchi F. N. Pupim D. J. Bertassoli M. Parra J. L. Antinao L. M. Sousa M. H. Sabaj Pérez P. E. Oliveira R. A Santos J. F. Savian C. H. Grohmann V. B. Medeiros M. M. McGlue D. C. Bicudo S. B. Faustino |
| author_sort |
A. O. Sawakuchi |
| title |
The Volta Grande do Xingu: reconstruction of past environments and forecasting of future scenarios of a unique Amazonian fluvial landscape |
| title_short |
The Volta Grande do Xingu: reconstruction of past environments and forecasting of future scenarios of a unique Amazonian fluvial landscape |
| title_full |
The Volta Grande do Xingu: reconstruction of past environments and forecasting of future scenarios of a unique Amazonian fluvial landscape |
| title_fullStr |
The Volta Grande do Xingu: reconstruction of past environments and forecasting of future scenarios of a unique Amazonian fluvial landscape |
| title_full_unstemmed |
The Volta Grande do Xingu: reconstruction of past environments and forecasting of future scenarios of a unique Amazonian fluvial landscape |
| title_sort |
volta grande do xingu: reconstruction of past environments and forecasting of future scenarios of a unique amazonian fluvial landscape |
| publisher |
Copernicus Publications |
| series |
Scientific Drilling |
| issn |
1816-8957 1816-3459 |
| publishDate |
2015-12-01 |
| description |
The Xingu River is a large clearwater river in eastern Amazonia and its
downstream sector, known as the Volta Grande do Xingu ("Xingu Great Bend"),
is a unique fluvial landscape that plays an important role in the
biodiversity, biogeochemistry and prehistoric and historic peopling of
Amazonia. The sedimentary dynamics of the Xingu River in the Volta Grande and
its downstream sector will be shifted in the next few years due to the
construction of dams associated with the Belo Monte hydropower project.
Impacts on river biodiversity and carbon cycling are anticipated, especially
due to likely changes in sedimentation and riverbed characteristics. This
research project aims to define the geological and climate factors
responsible for the development of the Volta Grande landscape and to track
its environmental changes during the Holocene, using the modern system as a
reference. In this context, sediment cores, riverbed rock and sediment
samples and greenhouse gas (GHG) samples were collected in the Volta Grande
do Xingu and adjacent upstream and downstream sectors. The reconstruction of
past conditions in the Volta Grande is necessary for forecasting future
scenarios and defining biodiversity conservation strategies under the
operation of Belo Monte dams. This paper describes the scientific questions
of the project and the sampling surveys performed by an international team of
Earth scientists and biologists during the dry seasons of 2013 and 2014.
Preliminary results are presented and a future workshop is planned to
integrate results, present data to the scientific community and discuss
possibilities for deeper drilling in the Xingu ria to extend the sedimentary
record of the Volta Grande do Xingu. |
| url |
http://www.sci-dril.net/20/21/2015/sd-20-21-2015.pdf |
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doaj-855f1bb780c2448188d4ca605443a63d2020-11-25T02:21:26ZengCopernicus PublicationsScientific Drilling 1816-89571816-34592015-12-0120213210.5194/sd-20-21-2015The Volta Grande do Xingu: reconstruction of past environments and forecasting of future scenarios of a unique Amazonian fluvial landscapeA. O. Sawakuchi0G. A. Hartmann1H. O. Sawakuchi2F. N. Pupim3D. J. Bertassoli4M. Parra5J. L. Antinao6L. M. Sousa7M. H. Sabaj Pérez8P. E. Oliveira9R. A Santos10J. F. Savian11C. H. Grohmann12V. B. Medeiros13M. M. McGlue14D. C. Bicudo15S. B. Faustino16Institute of Geosciences, University of São Paulo, Rua do Lago, 562, São Paulo, SP, 05508-080, BrazilCoordination of Geophysics, National Observatory, Rua General José Cristino, 77, Rio de Janeiro, RJ, 20921-400, BrazilEnvironmental Analysis and Geoprocessing Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo, Av. Centenário, 303, Piracicaba, SP, 13400-970, BrazilInstitute of Geosciences, University of São Paulo, Rua do Lago, 562, São Paulo, SP, 05508-080, BrazilInstitute of Geosciences, University of São Paulo, Rua do Lago, 562, São Paulo, SP, 05508-080, BrazilInstitute of Energy and Environment, University of São Paulo, Av. Prof. Luciano Gualberto 1289, São Paulo, SP, 05508-010, BrazilDesert Research Institute, Division of Earth and Ecosystems Sciences, 2215 Raggio Parkway, Reno, NV 89512, USAFederal University of Pará, Campus de Altamira, Rua Coronel José Porfírio, 2514, Altamira, PA, 68372-040, BrazilThe Academy of Natural Sciences, 1900 Benjamin Franklin Parkway, Philadelphia, PA 19103, USAInstitute of Geosciences, University of São Paulo, Rua do Lago, 562, São Paulo, SP, 05508-080, BrazilInstitute of Geosciences, University of São Paulo, Rua do Lago, 562, São Paulo, SP, 05508-080, BrazilInstitute of Geosciences, Federal University of Rio Grande do Sul. Avenida Bento Gonçalves, 9500, Porto Alegre, RS, 91501-970, BrazilInstitute of Energy and Environment, University of São Paulo, Av. Prof. Luciano Gualberto 1289, São Paulo, SP, 05508-010, BrazilInstitute of Geosciences, University of São Paulo, Rua do Lago, 562, São Paulo, SP, 05508-080, BrazilDepartment of Earth and Environmental Sciences, University of Kentucky, Lexington, KY 40506, USADepartment of Ecology, Instituto de Botânica, SMA. Av. Miguel Stéfano, 3687, São Paulo, SP, 04301-012, BrazilDepartment of Ecology, Instituto de Botânica, SMA. Av. Miguel Stéfano, 3687, São Paulo, SP, 04301-012, BrazilThe Xingu River is a large clearwater river in eastern Amazonia and its downstream sector, known as the Volta Grande do Xingu ("Xingu Great Bend"), is a unique fluvial landscape that plays an important role in the biodiversity, biogeochemistry and prehistoric and historic peopling of Amazonia. The sedimentary dynamics of the Xingu River in the Volta Grande and its downstream sector will be shifted in the next few years due to the construction of dams associated with the Belo Monte hydropower project. Impacts on river biodiversity and carbon cycling are anticipated, especially due to likely changes in sedimentation and riverbed characteristics. This research project aims to define the geological and climate factors responsible for the development of the Volta Grande landscape and to track its environmental changes during the Holocene, using the modern system as a reference. In this context, sediment cores, riverbed rock and sediment samples and greenhouse gas (GHG) samples were collected in the Volta Grande do Xingu and adjacent upstream and downstream sectors. The reconstruction of past conditions in the Volta Grande is necessary for forecasting future scenarios and defining biodiversity conservation strategies under the operation of Belo Monte dams. This paper describes the scientific questions of the project and the sampling surveys performed by an international team of Earth scientists and biologists during the dry seasons of 2013 and 2014. Preliminary results are presented and a future workshop is planned to integrate results, present data to the scientific community and discuss possibilities for deeper drilling in the Xingu ria to extend the sedimentary record of the Volta Grande do Xingu.http://www.sci-dril.net/20/21/2015/sd-20-21-2015.pdf |