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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
21/06/2022 |
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Data da última atualização: |
21/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, L. C. R.; CORRÊA, R. S.; WRIGHT, J. L.; BOMFIM, B.; HENDRICKS, L. B.; GAVIN, D. G.; MUNIZ, A. W.; MARTINS, G. C.; MOTTA, A. C. V.; BARBOSA, J. Z.; MELO, V. de F.; YOUNG, S. D.; BROADLEY, M. R.; SANTOS, R. V. |
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Afiliação: |
LUCAS C. R. SILVA, Environmental Studies Program, University of Oregon; RODRIGO STUDART CORRÊA, UnB; JAMIE L. WRIGHT, Environmental Studies Program, University of Oregon; BARBARA BOMFIM, Environmental Studies Program, University of Oregon; LAUREN B. HENDRICKS, Department of Geography, University of Oregon; DANIEL G. GAVIN; ALEKSANDER WESTPHAL MUNIZ, CPAA; GILVAN COIMBRA MARTINS, CPAA; ANTÔNIO CARLOS VARGAS MOTTA, UFPR; JULIERME ZIMMER BARBOSA, Federal Institute of Southeast Minas Gerais; VANDER DE FREITAS MELO, UFPR; SCOTT D. YOUNG, University of Nottingham; MARTIN R. BROADLEY, University of Nottingham; ROBERTO VENTURA SANTOS, UnB. |
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Título: |
Reply to: Evidence confirms an anthropic origin of Amazonian Dark Earths. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Nature Communications, v. 13, n. 3446, 2022. |
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DOI: |
https://doi.org/10.1038/s41467-022-31065-1 |
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Idioma: |
Inglês |
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Conteúdo: |
REPLYING to Lombardo et al. Nature Communications https://doi.org/10.1038/s41467-022-31064-2 (2022). Amazonian Dark Earths (ADEs) are widely regarded as a model for sustainable agriculture. Their unusual fertility and elevated concentration of charcoal, combined with the frequent occurrence of pre-Columbian artifacts at ADE sites, has prompted widespread biomass burning for soil amendment in tropical regions. However, it remains unclear how these persistent patches of high fertility could have been created in nutrient-impoverished tropical landscapes. In a recent study 1 , we report new data from one of the best-studied ADE sites in Brazil which warrant a revision of its origin story. We found large amounts of phosphorus (P) and calcium (Ca) correlated with 16 trace elements that indicate exogenous sources rather than in situ deposition, an inference that is supported by neodymium (Ne), strontium (Sr) and carbon (C) isotope signatures. Moreover, radiocarbon ( 14 C) activity of charcoal in ADEs suggested inputs beginning thousands of years before the earliest evidence of forest clearing for agriculture in the region. Our results imply that indigenous populations either managed soils at the site thousands of years earlier than previously reported or, alternatively, that human-derived inputs represent a small fraction of ADE’s chemical makeup, a fraction that, we hypothesise based on the size and timing of deposition (Fig. 1), was introduced in the relatively recent past. Lombardo et al.2 disagree and dispute our interpretation. They raise important questions which were addressed in our original paper albeit not in detail. Here, we expand on our previous analysis to estimate the land area and time needed to explain ADE formation through human inputs. This new analysis offers further support to our conclusion that indigenous peoples harnessed natural processes of elemental deposition, which led to the unique properties of ADEs, underscoring the need for a broader view of landscape evolution to redirect sustainable land use in the region. As explained in our study1, evidence from a single (albeit iconic) ADE site should not be extrapolated across the entire basin. However, our findings do raise general questions about previously proposed timing and mechanisms of ADE formation. We argue that our hypothesis should be tested in other sites through interdisciplinary research that combines indigenous knowledge, neotectonics, fluvial geomorphology, and a modern understanding of elemental cycling. Such an approach could uncover the mystery of ADE formation and guide the sustainable use of tropical landscapes going forward, hopefully leading to new discoveries of regional and global significance. MenosREPLYING to Lombardo et al. Nature Communications https://doi.org/10.1038/s41467-022-31064-2 (2022). Amazonian Dark Earths (ADEs) are widely regarded as a model for sustainable agriculture. Their unusual fertility and elevated concentration of charcoal, combined with the frequent occurrence of pre-Columbian artifacts at ADE sites, has prompted widespread biomass burning for soil amendment in tropical regions. However, it remains unclear how these persistent patches of high fertility could have been created in nutrient-impoverished tropical landscapes. In a recent study 1 , we report new data from one of the best-studied ADE sites in Brazil which warrant a revision of its origin story. We found large amounts of phosphorus (P) and calcium (Ca) correlated with 16 trace elements that indicate exogenous sources rather than in situ deposition, an inference that is supported by neodymium (Ne), strontium (Sr) and carbon (C) isotope signatures. Moreover, radiocarbon ( 14 C) activity of charcoal in ADEs suggested inputs beginning thousands of years before the earliest evidence of forest clearing for agriculture in the region. Our results imply that indigenous populations either managed soils at the site thousands of years earlier than previously reported or, alternatively, that human-derived inputs represent a small fraction of ADE’s chemical makeup, a fraction that, we hypothesise based on the size and timing of deposition (Fig. 1), was introduced in the relatively recent past. Lomba... Mostrar Tudo |
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Palavras-Chave: |
Terra Preta de Índio. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1144209/1/s41467-022-31065-1.pdf
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Marc: |
LEADER 03597naa a2200301 a 4500
001 2144209
005 2022-06-21
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1038/s41467-022-31065-1$2DOI
100 1 $aSILVA, L. C. R.
245 $aReply to$bEvidence confirms an anthropic origin of Amazonian Dark Earths.$h[electronic resource]
260 $c2022
520 $aREPLYING to Lombardo et al. Nature Communications https://doi.org/10.1038/s41467-022-31064-2 (2022). Amazonian Dark Earths (ADEs) are widely regarded as a model for sustainable agriculture. Their unusual fertility and elevated concentration of charcoal, combined with the frequent occurrence of pre-Columbian artifacts at ADE sites, has prompted widespread biomass burning for soil amendment in tropical regions. However, it remains unclear how these persistent patches of high fertility could have been created in nutrient-impoverished tropical landscapes. In a recent study 1 , we report new data from one of the best-studied ADE sites in Brazil which warrant a revision of its origin story. We found large amounts of phosphorus (P) and calcium (Ca) correlated with 16 trace elements that indicate exogenous sources rather than in situ deposition, an inference that is supported by neodymium (Ne), strontium (Sr) and carbon (C) isotope signatures. Moreover, radiocarbon ( 14 C) activity of charcoal in ADEs suggested inputs beginning thousands of years before the earliest evidence of forest clearing for agriculture in the region. Our results imply that indigenous populations either managed soils at the site thousands of years earlier than previously reported or, alternatively, that human-derived inputs represent a small fraction of ADE’s chemical makeup, a fraction that, we hypothesise based on the size and timing of deposition (Fig. 1), was introduced in the relatively recent past. Lombardo et al.2 disagree and dispute our interpretation. They raise important questions which were addressed in our original paper albeit not in detail. Here, we expand on our previous analysis to estimate the land area and time needed to explain ADE formation through human inputs. This new analysis offers further support to our conclusion that indigenous peoples harnessed natural processes of elemental deposition, which led to the unique properties of ADEs, underscoring the need for a broader view of landscape evolution to redirect sustainable land use in the region. As explained in our study1, evidence from a single (albeit iconic) ADE site should not be extrapolated across the entire basin. However, our findings do raise general questions about previously proposed timing and mechanisms of ADE formation. We argue that our hypothesis should be tested in other sites through interdisciplinary research that combines indigenous knowledge, neotectonics, fluvial geomorphology, and a modern understanding of elemental cycling. Such an approach could uncover the mystery of ADE formation and guide the sustainable use of tropical landscapes going forward, hopefully leading to new discoveries of regional and global significance.
653 $aTerra Preta de Índio
700 1 $aCORRÊA, R. S.
700 1 $aWRIGHT, J. L.
700 1 $aBOMFIM, B.
700 1 $aHENDRICKS, L. B.
700 1 $aGAVIN, D. G.
700 1 $aMUNIZ, A. W.
700 1 $aMARTINS, G. C.
700 1 $aMOTTA, A. C. V.
700 1 $aBARBOSA, J. Z.
700 1 $aMELO, V. de F.
700 1 $aYOUNG, S. D.
700 1 $aBROADLEY, M. R.
700 1 $aSANTOS, R. V.
773 $tNature Communications$gv. 13, n. 3446, 2022.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
23/01/2012 |
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Data da última atualização: |
23/01/2012 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
WESZ, J.; SOUSA, R. O. de; SCIVITTARO, W. B.; PILLON, C. N.; BAYER, C.; WOLTER, R. C. D.; SILVA, J. B. da; ROSA, C. M. da; ZSCHOMARCK, T.; BUSS, G. L.; SONCINI, M. M.; SEHN, C. F. S. |
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Afiliação: |
JONAS WESZ, UFPel; ROGERIO OLVEIRA DE SOUSA, UFPel; WALKYRIA BUENO SCIVITTARO, CPACT; CLENIO NAILTO PILLON, CPACT; CIMÉLIO BAYER, UFRGS; ROBERTO CARLOS DORING WOLTER, UFPel; JULIANA BRITO DA SILVA, UFRGS; CARLA MACHADO DA ROSA, UFRGS; TIAGO ZSCHOMARCK, UFRGS; GERSON LÜBKE, UFPel; MARCELO MACHADO SONCINI, UFPel; CLAUDIA FILOMENA SCHNEIDER SEHN, UFPel. |
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Título: |
Infuência do manejo da irrigação nos fluxos de metano e óxido nitroso no cultivo de arroz irrigado. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 7., 2011, Balneário Camboriú. Racionalizando recursos e ampliando oportunidades: anais. Itajaí: Epagri, 2011. |
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Páginas: |
P. 532-535 |
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Idioma: |
Português |
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Thesagro: |
Arroz. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00872naa a2200265 a 4500
001 1913212
005 2012-01-23
008 2011 bl uuuu u00u1 u #d
100 1 $aWESZ, J.
245 $aInfuência do manejo da irrigação nos fluxos de metano e óxido nitroso no cultivo de arroz irrigado.$h[electronic resource]
260 $c2011
300 $aP. 532-535
650 $aArroz
700 1 $aSOUSA, R. O. de
700 1 $aSCIVITTARO, W. B.
700 1 $aPILLON, C. N.
700 1 $aBAYER, C.
700 1 $aWOLTER, R. C. D.
700 1 $aSILVA, J. B. da
700 1 $aROSA, C. M. da
700 1 $aZSCHOMARCK, T.
700 1 $aBUSS, G. L.
700 1 $aSONCINI, M. M.
700 1 $aSEHN, C. F. S.
773 $tIn: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 7., 2011, Balneário Camboriú. Racionalizando recursos e ampliando oportunidades: anais. Itajaí: Epagri, 2011.
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