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| Registros recuperados : 163 | |
| 101. |  | MEDRI, I. M.; MARTINS, J. R.; DOYLE, R. L.; MOURAO, G. de M.; MARINHO-FILHO, J. Ticks (Acari: Ixodidae) from yellow armadilho, Euphractus sexcinctus (Cingulata: Dasypodidae), in Brazil´s Neotropical Entomology, v.39, n.5, p.823-825, out. 2010. Scientific note.| Biblioteca(s): Embrapa Pantanal. |
|   |
| 107. | | MAURO, R. de A.; MOURAO, G. de M.; COUTINHO, M. E.; SILVA, M. P.; MAGNUSSON, W. E. Abundance and distribution of marsh deer Blastocerus dichotomus (Artiodactyla: Cervidade) in the Pantanal, Brazil. Revista de Ecologia Latino Americana, v.5, n.1/2, p.13-20, 1998.| Biblioteca(s): Embrapa Pantanal. |
| |
| 109. | | MOURAO, G. de M.; COUTINHO, M. E.; MAURO, R. de A.; CAMPOS, Z. M.; TOMAS, W. M.; MAGNUSSON, W. Aerial surveys of caiman, marsh deer and pampas deer in the Pantanal wetland of Brazil. Biological Conservation, New York, v.92, n.2, p.175-183, 2000.| Biblioteca(s): Embrapa Pantanal. |
| |
| 111. | | ASSIS, T. A. C. de; PIOVEZAN, U.; SANTOS, S. A.; TOMÁS, W. M.; MOURÃO, G. de M.; PELLEGRIN, A. O. Coleções biológicas para o agronegócio-componentes recursos genéticos animais. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PANTANAL, 1.; SEMANA DE BIOLOGIA, 7., 2007, Corumbá. Resumos...Corumbá: Embrapa Pantanal, 2007. (Embrapa Pantanal. Documentos, 89). 1 p.| Biblioteca(s): Embrapa Pantanal. |
| |
| 113. | | BIANCHI, R. de C.; CAMPOS, R. C.; XAVIER FILHO, N. L.; OLIFIERS, N.; GOMPPER, M. E.; MOURAO, G. de M. Intraspecific, interspecific, and seasonal differences in the diet of three mid-sized carnivores in a large neotropical wetland. Acta Theriologica, v. 59, n. 1, p. 13-23, 2014.| Biblioteca(s): Embrapa Pantanal. |
|  |
| 114. | | BERTASSONI, A.; MOURAO, G. de M.; RIBEIRO, R. C.; CESÁRIO, C. S.; OLIVEIRA, J. P. de; BIANCHI, R. de C. Movement patterns and space use of the first giant anteater (Myrmecophaga tridactyla) monitored in São Paulo State, Brazil. Studies on Neotropical Fauna and Environment, v. 52, n. 1, p. 68-74, 2017.| Biblioteca(s): Embrapa Pantanal. |
| |
| 115. | | MOURÃO, G. de M.; OLIVEIRA, M. D. de; CALHEIROS, D. F.; PADOVANI, C. R.; MARQUES, E. J.; UETANABARO, M. O Pantanal Mato-Grossense: site 2. In: SEELIGER, U.; CORDAZZO, C.; BARBOSA, F. (Ed.). Os sites e o Programa Brasileiro de Pesquisas Ecológicas de Longa Duração. Belo Horizonte: [s.n.], 2002. p.29-49.| Biblioteca(s): Embrapa Pantanal. |
| |
| 117. | | MOURAO, G. de M.; COUTINHO, M. E.; SILVA, M. P.; MAURO, R. de A.; CAMPOS, Z.; MAGNUSSON, W.; TOMAS, W. Desmatamentos e queimadas no Pantanal Mato-Grossense. In: SIMPOSIO SOBRE RECURSOS NATURAIS E SOCIO-ECONOMICOS DO PANTANAL, 3., 2000, Corumba. Os desafios do novo milenio - resumos. Corumba: Embrapa Pantanal, 2000. p.419.| Biblioteca(s): Embrapa Pantanal. |
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| 118. | | SANTOS, S. A.; NOGUEIRA, M. S.; PINHEIRO, M. S.; CAMPOS, Z.; MAGNUSSON, W. E.; MOURAO, G. de M. Diets of Caiman crocodilus yacare from different habitats in the Brazilian Pantanal. Herpetological Journal, Brighton, v.6, n.4, p.111-117, 1996.| Biblioteca(s): Embrapa Pantanal. |
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| 119. | | HERRERA, H. M.; F. L. ROCHA.; LISBOA, C. V.; RADEMAKER, V.; MOURAO, G. de M.; JANSEN, A. M. Food web connections and the transmission cycles of Trypanosoma cruzi and Trypanosoma evansi (Kinetoplastida, Trypanosomatidae) in the PantanalRegion, Brazil. Transactions of the Royal Society of Tropical Medicine and Hygiene, v.7, n. 105, p. 380 -387, 2011.| Biblioteca(s): Embrapa Pantanal. |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
21/05/2004 |
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Data da última atualização: |
01/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BALBINO, L. C.; BRUAND, A.; COUSIN, I.; BROSSARD, M.; QUÉTIN, P.; GRIMALDI, M. |
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Afiliação: |
LUIZ CARLOS BALBINO, CNPAF. |
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Título: |
Change in the hydraulic properties of a Brazilian clay ferralsol on clearing for pasture. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Geoderma, v. 120, n. 3/4, p. 297-307, June 2004. |
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ISSN: |
0016-7061 |
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DOI: |
10.1016/j.geoderma.2003.08.017 |
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Idioma: |
Inglês |
|
Conteúdo: |
Ferralsols under native vegetation have a weak to moderate macrostructure and a well-developed microstructure corresponding to subrounded microaggregates that are usually 80 to 300 um in size. The aim of this study was to analyze how the hydraulic properties of a clay Ferralsol were affected by a change of structure when the native vegetation is cleared for pasture. We studied the macrostructure in the field and microstructure in scanning electron microscopy. The water retention properties were determined by using pressure cell equipment. We determined the saturated hydraulic conductivity, Ks, by applying a constant hydraulic head to saturated core samples, and the unsaturated hydraulic conductivity, Ks, by applying the evaporation method to undisturbed core samples. Results showed a significant decrease in the water retained at --1 and --10 hPa from 0- to 40-cm-depth when the native vegetation is cleared for pasture. That decrease in the water retained was related to a smaller development of microaggregation and greater proportion of microaggregates in close packing. For smaller water potential, there was no difference of water retained at every depth between native vegetation and pasture. Pedotransfer functions established earlier for Brazilian Ferralsols and using clay content as single predictor gave pretty good results but the precision of the estimation decreased when the water potential increased. This decrease in the precision was related to the lack of predictor taking structure into account. Ks and K(Y) showed an upward trend with depth under native vegetation and pasture. Except at 0?7-cm depth between the Brachiaria clumps in the pasture where smaller Ks and K(Y) than at the other depth was recorded whatever land use, we did not record any significant difference of Ks and K(Y) at every depth between native vegetation and pasture. The upward trend shown by the hydraulic conductivity with depth was related to the increase in the development of microaggregation with depth. MenosFerralsols under native vegetation have a weak to moderate macrostructure and a well-developed microstructure corresponding to subrounded microaggregates that are usually 80 to 300 um in size. The aim of this study was to analyze how the hydraulic properties of a clay Ferralsol were affected by a change of structure when the native vegetation is cleared for pasture. We studied the macrostructure in the field and microstructure in scanning electron microscopy. The water retention properties were determined by using pressure cell equipment. We determined the saturated hydraulic conductivity, Ks, by applying a constant hydraulic head to saturated core samples, and the unsaturated hydraulic conductivity, Ks, by applying the evaporation method to undisturbed core samples. Results showed a significant decrease in the water retained at --1 and --10 hPa from 0- to 40-cm-depth when the native vegetation is cleared for pasture. That decrease in the water retained was related to a smaller development of microaggregation and greater proportion of microaggregates in close packing. For smaller water potential, there was no difference of water retained at every depth between native vegetation and pasture. Pedotransfer functions established earlier for Brazilian Ferralsols and using clay content as single predictor gave pretty good results but the precision of the estimation decreased when the water potential increased. This decrease in the precision was related to the lack of predictor tak... Mostrar Tudo |
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Palavras-Chave: |
Microaggregate; Pedotransfer function; Water retention. |
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Thesagro: |
Argila; Condutividade Hidráulica. |
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Thesaurus NAL: |
bulk density; hydraulic conductivity. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
LEADER 02853naa a2200289 a 4500
001 1212341
005 2022-06-01
008 2004 bl uuuu u00u1 u #d
022 $a0016-7061
024 7 $a10.1016/j.geoderma.2003.08.017$2DOI
100 1 $aBALBINO, L. C.
245 $aChange in the hydraulic properties of a Brazilian clay ferralsol on clearing for pasture.$h[electronic resource]
260 $c2004
520 $aFerralsols under native vegetation have a weak to moderate macrostructure and a well-developed microstructure corresponding to subrounded microaggregates that are usually 80 to 300 um in size. The aim of this study was to analyze how the hydraulic properties of a clay Ferralsol were affected by a change of structure when the native vegetation is cleared for pasture. We studied the macrostructure in the field and microstructure in scanning electron microscopy. The water retention properties were determined by using pressure cell equipment. We determined the saturated hydraulic conductivity, Ks, by applying a constant hydraulic head to saturated core samples, and the unsaturated hydraulic conductivity, Ks, by applying the evaporation method to undisturbed core samples. Results showed a significant decrease in the water retained at --1 and --10 hPa from 0- to 40-cm-depth when the native vegetation is cleared for pasture. That decrease in the water retained was related to a smaller development of microaggregation and greater proportion of microaggregates in close packing. For smaller water potential, there was no difference of water retained at every depth between native vegetation and pasture. Pedotransfer functions established earlier for Brazilian Ferralsols and using clay content as single predictor gave pretty good results but the precision of the estimation decreased when the water potential increased. This decrease in the precision was related to the lack of predictor taking structure into account. Ks and K(Y) showed an upward trend with depth under native vegetation and pasture. Except at 0?7-cm depth between the Brachiaria clumps in the pasture where smaller Ks and K(Y) than at the other depth was recorded whatever land use, we did not record any significant difference of Ks and K(Y) at every depth between native vegetation and pasture. The upward trend shown by the hydraulic conductivity with depth was related to the increase in the development of microaggregation with depth.
650 $abulk density
650 $ahydraulic conductivity
650 $aArgila
650 $aCondutividade Hidráulica
653 $aMicroaggregate
653 $aPedotransfer function
653 $aWater retention
700 1 $aBRUAND, A.
700 1 $aCOUSIN, I.
700 1 $aBROSSARD, M.
700 1 $aQUÉTIN, P.
700 1 $aGRIMALDI, M.
773 $tGeoderma$gv. 120, n. 3/4, p. 297-307, June 2004.
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