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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Pantanal. |
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Data corrente: |
26/09/2022 |
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Data da última atualização: |
26/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LO, E. L.; YEAGER, K, M.; BERGIER, I.; DOMINGOS-LUZ, L.; SILVA, A.; MCGLUE, M. M. |
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Afiliação: |
EDWARD L. LO, UNIVERSITY OF KENTUCKY; KEVIN M. YEAGER, UNIVERSITY OF KENTUCKY; IVAN BERGIER TAVARES DE LIMA, CPAP, CNPTIA; LEANDRO DOMINGOS-LUZ, UNIVERSITY OF KENTUCKY; AGUINALDO SILVA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; MICHAEL M. MCGLUE, UNIVERSITY OF KENTUCKY. |
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Título: |
Sediment infill of tropical floodplain lakes: rates, controls, and implications for ecosystem services. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Frontiers in Earth Science, v. 10, 875919, May 2022. |
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DOI: |
https://doi.org/10.3389/feart.2022.875919 |
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Idioma: |
Inglês |
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Conteúdo: |
Shallow lakes in tropical floodplains provide significant ecosystem services that can be altered by natural and anthropogenic forces. Despite their importance, little is known about the infill patterns and timescales and the magnitude of these changes in tropical floodplain lakes. Here, we present a global meta-analysis of sediment core-derived accumulation rate data for shallow floodplain lakes in tropical lowlands to quantify the timescales of basin infill. Environmental variables (e.g., sediment accumulation rates, bathymetry, surface area) were compiled from the literature or derived from remote sensing imagery, resulting in a database (n = 76 lakes) that includes various lake morphologies. Our results show an exponential increase in sediment accumulation rates in many of these lakes over the past 50 years, which we interpret as a response to growing human populations and deforestation, particularly in topographically steep watersheds with pronounced seasonal rainfall. Over centennial periods, tropical floodplain lakes accumulate sediment faster than many other extratropical lakes. The dataset suggests that complete infill of some tropical floodplain lakes will occur in as little as a few centuries. Our findings also reveal the critical environmental and human factors that influence sediment accumulation patterns and affect ecosystem services in shallow tropical floodplain lakes. These findings have important implications for water and sediment management in low latitude watersheds, many of which are located in densely populated and/or developing nations. MenosShallow lakes in tropical floodplains provide significant ecosystem services that can be altered by natural and anthropogenic forces. Despite their importance, little is known about the infill patterns and timescales and the magnitude of these changes in tropical floodplain lakes. Here, we present a global meta-analysis of sediment core-derived accumulation rate data for shallow floodplain lakes in tropical lowlands to quantify the timescales of basin infill. Environmental variables (e.g., sediment accumulation rates, bathymetry, surface area) were compiled from the literature or derived from remote sensing imagery, resulting in a database (n = 76 lakes) that includes various lake morphologies. Our results show an exponential increase in sediment accumulation rates in many of these lakes over the past 50 years, which we interpret as a response to growing human populations and deforestation, particularly in topographically steep watersheds with pronounced seasonal rainfall. Over centennial periods, tropical floodplain lakes accumulate sediment faster than many other extratropical lakes. The dataset suggests that complete infill of some tropical floodplain lakes will occur in as little as a few centuries. Our findings also reveal the critical environmental and human factors that influence sediment accumulation patterns and affect ecosystem services in shallow tropical floodplain lakes. These findings have important implications for water and sediment management in low latitude... Mostrar Tudo |
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Palavras-Chave: |
210Pb; Limnogeology; Planície tropical; Radiocarbon; Radiocarbono; Sedimentation rates; Taxa de sedimentação; Tropical lowland. |
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Thesagro: |
Chumbo; Desmatamento. |
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Thesaurus Nal: |
Deforestation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146801/1/Sediment-Infill-of-Tropical-Floodplain-2022.pdf
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Marc: |
LEADER 02526naa a2200325 a 4500
001 2146801
005 2022-09-26
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3389/feart.2022.875919$2DOI
100 1 $aLO, E. L.
245 $aSediment infill of tropical floodplain lakes$brates, controls, and implications for ecosystem services.$h[electronic resource]
260 $c2022
520 $aShallow lakes in tropical floodplains provide significant ecosystem services that can be altered by natural and anthropogenic forces. Despite their importance, little is known about the infill patterns and timescales and the magnitude of these changes in tropical floodplain lakes. Here, we present a global meta-analysis of sediment core-derived accumulation rate data for shallow floodplain lakes in tropical lowlands to quantify the timescales of basin infill. Environmental variables (e.g., sediment accumulation rates, bathymetry, surface area) were compiled from the literature or derived from remote sensing imagery, resulting in a database (n = 76 lakes) that includes various lake morphologies. Our results show an exponential increase in sediment accumulation rates in many of these lakes over the past 50 years, which we interpret as a response to growing human populations and deforestation, particularly in topographically steep watersheds with pronounced seasonal rainfall. Over centennial periods, tropical floodplain lakes accumulate sediment faster than many other extratropical lakes. The dataset suggests that complete infill of some tropical floodplain lakes will occur in as little as a few centuries. Our findings also reveal the critical environmental and human factors that influence sediment accumulation patterns and affect ecosystem services in shallow tropical floodplain lakes. These findings have important implications for water and sediment management in low latitude watersheds, many of which are located in densely populated and/or developing nations.
650 $aDeforestation
650 $aChumbo
650 $aDesmatamento
653 $a210Pb
653 $aLimnogeology
653 $aPlanície tropical
653 $aRadiocarbon
653 $aRadiocarbono
653 $aSedimentation rates
653 $aTaxa de sedimentação
653 $aTropical lowland
700 1 $aYEAGER, K, M.
700 1 $aBERGIER, I.
700 1 $aDOMINGOS-LUZ, L.
700 1 $aSILVA, A.
700 1 $aMCGLUE, M. M.
773 $tFrontiers in Earth Science$gv. 10, 875919, May 2022.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| Registros recuperados : 9 | |
| 2. |  | BRITO, L. T. de L.; PORTO, E. R.; SILVA, A. de S.; GNADLINGER, J.; XENOFONTE, G. H. S. Análise da qualidade das águas de cisternas em cinco municípios do semi-árido brasileiro. In: CONGRESSO BRASILEIRO DE AGROECOLOGIA, 3.; SEMINÁRIO ESTADUAL DE AGROECOLOGIA, 3., 2005, Florianópolis. Anais... Florianópolis: ABA, 2005. 1 CD-ROM.| Tipo: Autoria/Organização/Edição de Livros |
| Biblioteca(s): Embrapa Semiárido. |
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| 9. | | SILVA, F. B. R. e; RICHÉ, G. R.; TONNEAU, J. P.; SOUZA NETO, N. C. de; BRITO, L. T. de L.; CORREIA, R. C.; CAVALCANTI, A. C.; SILVA, F. H. B. B. da; SILVA, A. B. da; ARAÚJO FILHO, J. C. de; LEITE, A. P. Zoneamento agroecológico do Nordeste: diagnóstico do quadro natural e agrossocioeconômico. Petrolina: EMBRAPA-CPATSA; Recife: EMBRAPA-CNPS, Coordenadoria Regional Nordeste, 1993. 2 v. (EMBRAPA-CPATSA. Documentos, 80).| Biblioteca(s): Embrapa Semiárido; Embrapa Solos. |
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| Registros recuperados : 9 | |
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