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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/06/2026 |
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Data da última atualização: |
25/06/2026 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SCHLEDER, A. A.; FROEHNER, S.; GUERREIRO, R. L.; PARRON, L. M.; HANSEL, F. A.; SÁNEZ, J.; MARTINS, C. de C.; MALTEMPI, E.; BALSANELLI, E. |
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Afiliação: |
ALUANA ARIANE SCHLEDER, UNIVERSIDADE FEDERAL DO PARANA; SANDRO FROEHNER, UNIVERSIDADE FEDERAL DO PARANA; RENATO LADA GUERREIRO, INSTITUTO FEDERAL DO PARANA; LUCILIA MARIA PARRON VARGAS, CNPF; FABRICIO AUGUSTO HANSEL, CNPF; JUAN SÁNEZ, UNIVERSIDADE ESTADUAL DO PARANA; CÉSAR DE CASTRO MARTINS, UNIVERSIDADE DE SÃO PAULO; EMANUEL MALTEMPI, UNIVERSIDADE FEDERAL DO PARANA; EDUARDO BALSANELLI, GOGENETIC. |
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Título: |
Disentangling sources and variation of organic matter in soda lakes from Nhecolândia (Pantanal, Brazil) based on hydrocarbons and bacterial composition. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Journal of South American Earth Sciences, v. 114, 103718, 2022. |
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ISSN: |
0895-9811 |
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DOI: |
https://doi.org/10.1016/j.jsames.2022.103718 |
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Idioma: |
Inglês |
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Conteúdo: |
The Nhecolândia, in the middle of Pantanal-Brazil, is known for the co-existence of soda lakes and freshwater lakes. The distribution and ocurrence of n-alkanes in three cores from the soda and freshwater lakes were studied in order to assess the variation in organic matter. Additionally, variations in bacteria populations were associated with changes in alkalinity or salinity of the studied lakes. Results show a significant change in n-alkanes distribution. Long carbon chain predominated in the uppermost part of the cores (C24 to C33), while short carbon chain prevailed in the deepest parts (C17 to C22), which correspond to ∼3200 yr BP. It is documented that the soda lakes became highly alkaline at some point during the Holocene, causing changes in the microbiota, which is currently dominated by bacteria in the three cores, independently of salinity and alkalinity characteristics. Whereas the NHP and BB2 cores, both from soda lakes, exhibit a relatively high number of different bacteria, with averages of 335 and 300, the BTP core, from a freshwater lake, presented 123 bacteria. Thus, cores from soda lakes show a greater diversity of the bacterial community in comparison to freshwater lakes, despite the existence of an extreme saline environment. |
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Palavras-Chave: |
Biomarker. |
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Thesagro: |
Matéria Orgânica; Meio Ambiente; Mudança Climática; Sulfato. |
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Thesaurus Nal: |
Climate change; Environment; Holocene soils; Organic matter; Pantanal; Sulfate-reducing bacteria. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02408naa a2200373 a 4500
001 2187671
005 2026-06-25
008 2022 bl uuuu u00u1 u #d
022 $a0895-9811
024 7 $ahttps://doi.org/10.1016/j.jsames.2022.103718$2DOI
100 1 $aSCHLEDER, A. A.
245 $aDisentangling sources and variation of organic matter in soda lakes from Nhecolândia (Pantanal, Brazil) based on hydrocarbons and bacterial composition.$h[electronic resource]
260 $c2022
520 $aThe Nhecolândia, in the middle of Pantanal-Brazil, is known for the co-existence of soda lakes and freshwater lakes. The distribution and ocurrence of n-alkanes in three cores from the soda and freshwater lakes were studied in order to assess the variation in organic matter. Additionally, variations in bacteria populations were associated with changes in alkalinity or salinity of the studied lakes. Results show a significant change in n-alkanes distribution. Long carbon chain predominated in the uppermost part of the cores (C24 to C33), while short carbon chain prevailed in the deepest parts (C17 to C22), which correspond to ∼3200 yr BP. It is documented that the soda lakes became highly alkaline at some point during the Holocene, causing changes in the microbiota, which is currently dominated by bacteria in the three cores, independently of salinity and alkalinity characteristics. Whereas the NHP and BB2 cores, both from soda lakes, exhibit a relatively high number of different bacteria, with averages of 335 and 300, the BTP core, from a freshwater lake, presented 123 bacteria. Thus, cores from soda lakes show a greater diversity of the bacterial community in comparison to freshwater lakes, despite the existence of an extreme saline environment.
650 $aClimate change
650 $aEnvironment
650 $aHolocene soils
650 $aOrganic matter
650 $aPantanal
650 $aSulfate-reducing bacteria
650 $aMatéria Orgânica
650 $aMeio Ambiente
650 $aMudança Climática
650 $aSulfato
653 $aBiomarker
700 1 $aFROEHNER, S.
700 1 $aGUERREIRO, R. L.
700 1 $aPARRON, L. M.
700 1 $aHANSEL, F. A.
700 1 $aSÁNEZ, J.
700 1 $aMARTINS, C. de C.
700 1 $aMALTEMPI, E.
700 1 $aBALSANELLI, E.
773 $tJournal of South American Earth Sciences$gv. 114, 103718, 2022.
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| 1. |  | GOUVEA, R. A.; NOGARA NETO, F.; FRANCHINI, J. C.; DEBIASI, H.; SANTOS, E. L. dos. Experimentação on farm em agricultura de precisão para ajuste da densidade de sementes e nitrogênio na cultura do milho no norte do Paraná. In: JORNADA ACADÊMICA DA EMBRAPA SOJA, 21., 2026, Londrina, PR. Resumos expandidos... Londrina: Embrapa Soja, 2026. p. 116-122. trabalho 16. (Embrapa Soja. Eventos técnicos & científicos, 8). Organização da publicação: Regina Maria Villas Bôas de Campos Leite, Liliane Márcia Mertz-Henning, Kelly Catharin.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| 2. | | NAIME, J. de M.; SPERANZA, E. A.; LOPES, I. de O. N.; VAZ, C. M. P.; INAMASU, R. Y.; NOGARA NETO, F.; FRANCHINI, J. C. Optimizing maize planting density for enhanced economic returns. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 5., 2025, São Carlos. Anais [...]. São Carlos: Embrapa Instrumentação, 2025. p. 577-581. Editores: Paulo Sergio de Paula Herrmann Junior, Henriette Monteiro Cordeiro de Azeredo, Maria Fernanda Berlingieri Durigan, Luís Henrique Bassoi. SIAGRO 2025.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Instrumentação; Embrapa Soja. |
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