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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
Data corrente: |
18/01/2018 |
Data da última atualização: |
23/01/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA JUNIOR, J. C. de; BEIRIGO, R. M.; CHIAPINI, M.; NASCIMENTO, A. F. do; COUTO, E. G.; VIDAL-TORRADO, P. |
Afiliação: |
JAIRO CALDERARI DE OLIVEIRA JUNIOR, UFTPR; RAPHAEL MOREIRA BEIRIGO, UFPB; MARIANE CHIAPINI, USP-ESQLQ; ALEXANDRE FERREIRA DO NASCIMENTO, CPAMT; EDUARDO GUIMARÃES COUTO, UFMT-CUIABA; PABLO VIDAL-TORRADO, USP-ESALQ. |
Título: |
Origin of mounds in the Pantanal wetlands: An integrated approach between geomorphology, pedogenesis, ecology and soil micromorphology. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
PLoS One, v. 12, n. 7, e0179197, 2017. |
Idioma: |
Inglês |
Conteúdo: |
Vegetated mounds are an important geomorphological feature of the Pantanal, where the influence of floods dictates not only hydropedological processes, but also the distribution and ecology of the flora and fauna. This work aimed to identify factors and processes that influence the formation and spatial distribution of the mounds, which are commonly associated with termite activity. In order to characterize pedological processes, macro and micro morphological descriptions, satellite image interpretation, dating of the sandy sedimentary material using OSL and carbon dating using 14C AMS were carried out. This dating of the materials indicates that the sediments in which the soils were formed were deposited during the Pleistocene, while the carbonates are from the Holocene. The basin-like format of the laminar structures suggests that part of the more clayey material was deposited in lacustrine environments. The more humid climate in the Holocene intensified argilluviation, which at an advanced stage, led to a more pronounced textural gradient, reducing drainage and leading to ferrolysis and thickening of the E horizon. Besides pedogenic processes, more erosive flooding during the Holocene began reducing and rounding the landscape's more elevated structures (paleolevees). In the final stage, these structures were occupied by termites to shelter from flooding. Thereafter, the bio-cementation action of the termite nests has increased the resistance of the vegetated mounds to processes of erosion. MenosVegetated mounds are an important geomorphological feature of the Pantanal, where the influence of floods dictates not only hydropedological processes, but also the distribution and ecology of the flora and fauna. This work aimed to identify factors and processes that influence the formation and spatial distribution of the mounds, which are commonly associated with termite activity. In order to characterize pedological processes, macro and micro morphological descriptions, satellite image interpretation, dating of the sandy sedimentary material using OSL and carbon dating using 14C AMS were carried out. This dating of the materials indicates that the sediments in which the soils were formed were deposited during the Pleistocene, while the carbonates are from the Holocene. The basin-like format of the laminar structures suggests that part of the more clayey material was deposited in lacustrine environments. The more humid climate in the Holocene intensified argilluviation, which at an advanced stage, led to a more pronounced textural gradient, reducing drainage and leading to ferrolysis and thickening of the E horizon. Besides pedogenic processes, more erosive flooding during the Holocene began reducing and rounding the landscape's more elevated structures (paleolevees). In the final stage, these structures were occupied by termites to shelter from flooding. Thereafter, the bio-cementation action of the termite nests has increased the resistance of the vegetated mounds to pro... Mostrar Tudo |
Palavras-Chave: |
Mato Grosso; Plants; Wetland. |
Thesagro: |
Fauna; Flora. |
Thesaurus Nal: |
Biogeography; Botany; Climate change; Ecology; Environmental factors; Floods; Microstructure; Pantanal; Soil formation; Termite mounds. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/171316/1/2017-cpamt-alexandre-nascimento-pantanal-wetlands.pdf
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Marc: |
LEADER 02514naa a2200361 a 4500 001 2085773 005 2018-01-23 008 2017 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA JUNIOR, J. C. de 245 $aOrigin of mounds in the Pantanal wetlands$bAn integrated approach between geomorphology, pedogenesis, ecology and soil micromorphology.$h[electronic resource] 260 $c2017 520 $aVegetated mounds are an important geomorphological feature of the Pantanal, where the influence of floods dictates not only hydropedological processes, but also the distribution and ecology of the flora and fauna. This work aimed to identify factors and processes that influence the formation and spatial distribution of the mounds, which are commonly associated with termite activity. In order to characterize pedological processes, macro and micro morphological descriptions, satellite image interpretation, dating of the sandy sedimentary material using OSL and carbon dating using 14C AMS were carried out. This dating of the materials indicates that the sediments in which the soils were formed were deposited during the Pleistocene, while the carbonates are from the Holocene. The basin-like format of the laminar structures suggests that part of the more clayey material was deposited in lacustrine environments. The more humid climate in the Holocene intensified argilluviation, which at an advanced stage, led to a more pronounced textural gradient, reducing drainage and leading to ferrolysis and thickening of the E horizon. Besides pedogenic processes, more erosive flooding during the Holocene began reducing and rounding the landscape's more elevated structures (paleolevees). In the final stage, these structures were occupied by termites to shelter from flooding. Thereafter, the bio-cementation action of the termite nests has increased the resistance of the vegetated mounds to processes of erosion. 650 $aBiogeography 650 $aBotany 650 $aClimate change 650 $aEcology 650 $aEnvironmental factors 650 $aFloods 650 $aMicrostructure 650 $aPantanal 650 $aSoil formation 650 $aTermite mounds 650 $aFauna 650 $aFlora 653 $aMato Grosso 653 $aPlants 653 $aWetland 700 1 $aBEIRIGO, R. M. 700 1 $aCHIAPINI, M. 700 1 $aNASCIMENTO, A. F. do 700 1 $aCOUTO, E. G. 700 1 $aVIDAL-TORRADO, P. 773 $tPLoS One$gv. 12, n. 7, e0179197, 2017.
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
28/02/1996 |
Data da última atualização: |
27/09/2013 |
Autoria: |
MENEZES, J. E.; PARENTE, M. R. (org.). |
Afiliação: |
EMBRAPA-CNPH, Brasilia, DF. |
Título: |
Bibliografia brasileira de sementes de hortaliças. |
Ano de publicação: |
1998 |
Fonte/Imprenta: |
Brasilia: EMBRAPA-CNPH, 1998. |
Páginas: |
353p. |
Série: |
(EMBRAPA-CNPH. Documentos, 16). |
Idioma: |
Português |
Palavras-Chave: |
Bibliografia; Bibliography; Brasil; Seed; Vegetable. |
Thesagro: |
Hortaliça; Semente. |
Thesaurus NAL: |
Brazil. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00569nam a2200229 a 4500 001 1754445 005 2013-09-27 008 1998 bl uuuu de 00u1 u #d 100 1 $aMENEZES, J. E. 245 $aBibliografia brasileira de sementes de hortaliças. 260 $aBrasilia: EMBRAPA-CNPH$c1998 300 $a353p. 490 $a(EMBRAPA-CNPH. Documentos, 16). 650 $aBrazil 650 $aHortaliça 650 $aSemente 653 $aBibliografia 653 $aBibliography 653 $aBrasil 653 $aSeed 653 $aVegetable 700 1 $aPARENTE, M. R.
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