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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
18/01/2018 |
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Data da última atualização: |
23/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA JUNIOR, J. C. de; BEIRIGO, R. M.; CHIAPINI, M.; NASCIMENTO, A. F. do; COUTO, E. G.; VIDAL-TORRADO, P. |
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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. |
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Título: |
Origin of mounds in the Pantanal wetlands: An integrated approach between geomorphology, pedogenesis, ecology and soil micromorphology. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
PLoS One, v. 12, n. 7, e0179197, 2017. |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Mato Grosso; Plants; Wetland. |
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Thesagro: |
Fauna; Flora. |
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Thesaurus Nal: |
Biogeography; Botany; Climate change; Ecology; Environmental factors; Floods; Microstructure; Pantanal; Soil formation; Termite mounds. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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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 Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
16/10/2018 |
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Data da última atualização: |
07/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
MATTAR. E. P. L.; BARROS, T. T. V; BRASILEIRO, B. P.; MATTIELO, E. M.; COELHO, M. R. R.; GAMA, G. F. V.; DIAS, D. C. F. dos. |
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Afiliação: |
UNIVERSIDADE FEDERAL DO ACRE; UFV; UNIVERSIDADE FEDERAÇ DO PARANÁ; UFV; MARCIA REED RODRIGUES COELHO, CNPAB; UFV; UFV. |
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Título: |
Response of Cratylia argentea (Desvaux) O. Kuntzeto inoculation with Rhizobium sp. and Bradyrhizobium sp. strains. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 12, n. 6, p. 849-854, 2018. |
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ISSN: |
1835-2707 |
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DOI: |
10.21475/ajcs.18.12.06.PNE524 |
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Idioma: |
Português |
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Conteúdo: |
Cratylia argentea is a neotropical leguminous shrub that exhibits symbiosis with nitrogen (N) fixing bacteria and high levels of protein. Thus, it has potential for animal feed and green manure. In spite of its potential, few cultivars are registered for the species and there is little information in regard to its interaction with N-fixing microorganisms. The aim of this study was to evaluate the effect of inoculation with rhizobium strains on the growth and concentration of N in Cratylia rgentea. Seeds were inoculated with two strains of Rhizobium sp.,CR 33 (BR10243) and CR42 (BR10244), and four strains of Bradyrhizobium sp., CR52 (BR10257), CPACB10, SEMIA 6464 (BR3262), and SEMIA 6462 (BR3267), and sown in pots filled with sand and vermiculite in a greenhouse. After 150 days we evaluated the number of nodules, shoot and nodules dry matter, total nitrogen and crude protein contents for the shoots. The plants inoculated with CR 52 exhibited nodulation, with nodular efficiency of 0.189 and relative efficiency of 66.14%; it is possible to observe the effect of nodulation as of 85 days after sowing. Based on the obtained results it was identified the strain that showed symbiosis with C. argentea and presents potential to be used as a commercial inoculant. |
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Palavras-Chave: |
Biological N fixation; Root nodule bacteria. |
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Thesaurus NAL: |
Forage; Nodulation. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02101naa a2200265 a 4500
001 2097536
005 2018-11-07
008 2018 bl uuuu u00u1 u #d
022 $a1835-2707
024 7 $a10.21475/ajcs.18.12.06.PNE524$2DOI
100 1 $aMATTAR. E. P. L.
245 $aResponse of Cratylia argentea (Desvaux) O. Kuntzeto inoculation with Rhizobium sp. and Bradyrhizobium sp. strains.$h[electronic resource]
260 $c2018
520 $aCratylia argentea is a neotropical leguminous shrub that exhibits symbiosis with nitrogen (N) fixing bacteria and high levels of protein. Thus, it has potential for animal feed and green manure. In spite of its potential, few cultivars are registered for the species and there is little information in regard to its interaction with N-fixing microorganisms. The aim of this study was to evaluate the effect of inoculation with rhizobium strains on the growth and concentration of N in Cratylia rgentea. Seeds were inoculated with two strains of Rhizobium sp.,CR 33 (BR10243) and CR42 (BR10244), and four strains of Bradyrhizobium sp., CR52 (BR10257), CPACB10, SEMIA 6464 (BR3262), and SEMIA 6462 (BR3267), and sown in pots filled with sand and vermiculite in a greenhouse. After 150 days we evaluated the number of nodules, shoot and nodules dry matter, total nitrogen and crude protein contents for the shoots. The plants inoculated with CR 52 exhibited nodulation, with nodular efficiency of 0.189 and relative efficiency of 66.14%; it is possible to observe the effect of nodulation as of 85 days after sowing. Based on the obtained results it was identified the strain that showed symbiosis with C. argentea and presents potential to be used as a commercial inoculant.
650 $aForage
650 $aNodulation
653 $aBiological N fixation
653 $aRoot nodule bacteria
700 1 $aBARROS, T. T. V
700 1 $aBRASILEIRO, B. P.
700 1 $aMATTIELO, E. M.
700 1 $aCOELHO, M. R. R.
700 1 $aGAMA, G. F. V.
700 1 $aDIAS, D. C. F. dos
773 $tAustralian Journal of Crop Science$gv. 12, n. 6, p. 849-854, 2018.
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Embrapa Agrobiologia (CNPAB) |
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