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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
22/11/2000 |
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Data da última atualização: |
22/11/2000 |
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Autoria: |
LILIENFEIN, J.; WILCKE, W.; AYARZA, M. A.; LIMA, S. do C.; VILELA, L.; ZECH, W. |
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Título: |
Annual course of matric potential in differently used savanna oxisols in Brazil. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Soil Society of American Journal, Madison, v.63, p.1778-1785, 1999. |
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Idioma: |
Inglês |
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Conteúdo: |
Sustainable land use in periodically dry Brasilian savannas requires a water-saving management. We hypothesized that the annual course of matric potentials (simbolo) in very-fine, isohyperthermic Anionic Acrustoxes of Pinus plantations (PI), degraded (DP) and productive pastures (PP) no-till (NT) and conventional tillage (CT) cropping, and natural savanna (Cerrado, CE) differed significantly. On three plots in each of these land-use systems water input and (simbolo) at the 0.15-, 0.30-, 0.80-, 1.2-, and 2.0-m depths was measured with tensiometers weekly between 27 Mar. 1997 and 28 Apr. 1998.Precipitation between 29 Apr. 1997 and 28 Apr.1998 was 1562 mm,with only 210 mm in May to September, when (simbolo) at the 0.15-and 0,30-m depths decreased to less than -80kPa in all systems; the lowest (simbolo) at 2-m depth was -57kPa. During the monitored period, the PI soils had lower average (simbolo) at the 0,8- to 2-m depths (-60 kPa) than those in CE (-46), indicating higher rainfall interception losses and higher transpiration. In CT, average (simbolo) values at the 0.8-to 2-m depths (-29) were higher than in NT (-51) because of different crops and different soil management. Between june and November, (simbolo) at the 2-m depth in CE decreased to a lower value (-42) than in vegetation-free CT (-22) and NT (-27). In DP and PP soils, (simbolo) were similar to those in CE soils at all depths. The estimated average water storage in the upper 2 m during the monitored period was 565 mm (CT) > 553 (PP) > 541 (DP) > 537 (CE) > 526 (NT) > 479 (PI).Our results show that mainly the vegetation type and tillage practices control the annual course of matric potencial in differently used savanna Oxisols. MenosSustainable land use in periodically dry Brasilian savannas requires a water-saving management. We hypothesized that the annual course of matric potentials (simbolo) in very-fine, isohyperthermic Anionic Acrustoxes of Pinus plantations (PI), degraded (DP) and productive pastures (PP) no-till (NT) and conventional tillage (CT) cropping, and natural savanna (Cerrado, CE) differed significantly. On three plots in each of these land-use systems water input and (simbolo) at the 0.15-, 0.30-, 0.80-, 1.2-, and 2.0-m depths was measured with tensiometers weekly between 27 Mar. 1997 and 28 Apr. 1998.Precipitation between 29 Apr. 1997 and 28 Apr.1998 was 1562 mm,with only 210 mm in May to September, when (simbolo) at the 0.15-and 0,30-m depths decreased to less than -80kPa in all systems; the lowest (simbolo) at 2-m depth was -57kPa. During the monitored period, the PI soils had lower average (simbolo) at the 0,8- to 2-m depths (-60 kPa) than those in CE (-46), indicating higher rainfall interception losses and higher transpiration. In CT, average (simbolo) values at the 0.8-to 2-m depths (-29) were higher than in NT (-51) because of different crops and different soil management. Between june and November, (simbolo) at the 2-m depth in CE decreased to a lower value (-42) than in vegetation-free CT (-22) and NT (-27). In DP and PP soils, (simbolo) were similar to those in CE soils at all depths. The estimated average water storage in the upper 2 m during the monitored period was 565 m... Mostrar Tudo |
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Palavras-Chave: |
Agua de solo. |
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Thesagro: |
Cerrado; Oxisol. |
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Thesaurus Nal: |
Ferralsols; soil water. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02366naa a2200241 a 4500
001 1546510
005 2000-11-22
008 1999 bl --- 0-- u #d
100 1 $aLILIENFEIN, J.
245 $aAnnual course of matric potential in differently used savanna oxisols in Brazil.
260 $c1999
520 $aSustainable land use in periodically dry Brasilian savannas requires a water-saving management. We hypothesized that the annual course of matric potentials (simbolo) in very-fine, isohyperthermic Anionic Acrustoxes of Pinus plantations (PI), degraded (DP) and productive pastures (PP) no-till (NT) and conventional tillage (CT) cropping, and natural savanna (Cerrado, CE) differed significantly. On three plots in each of these land-use systems water input and (simbolo) at the 0.15-, 0.30-, 0.80-, 1.2-, and 2.0-m depths was measured with tensiometers weekly between 27 Mar. 1997 and 28 Apr. 1998.Precipitation between 29 Apr. 1997 and 28 Apr.1998 was 1562 mm,with only 210 mm in May to September, when (simbolo) at the 0.15-and 0,30-m depths decreased to less than -80kPa in all systems; the lowest (simbolo) at 2-m depth was -57kPa. During the monitored period, the PI soils had lower average (simbolo) at the 0,8- to 2-m depths (-60 kPa) than those in CE (-46), indicating higher rainfall interception losses and higher transpiration. In CT, average (simbolo) values at the 0.8-to 2-m depths (-29) were higher than in NT (-51) because of different crops and different soil management. Between june and November, (simbolo) at the 2-m depth in CE decreased to a lower value (-42) than in vegetation-free CT (-22) and NT (-27). In DP and PP soils, (simbolo) were similar to those in CE soils at all depths. The estimated average water storage in the upper 2 m during the monitored period was 565 mm (CT) > 553 (PP) > 541 (DP) > 537 (CE) > 526 (NT) > 479 (PI).Our results show that mainly the vegetation type and tillage practices control the annual course of matric potencial in differently used savanna Oxisols.
650 $aFerralsols
650 $asoil water
650 $aCerrado
650 $aOxisol
653 $aAgua de solo
700 1 $aWILCKE, W.
700 1 $aAYARZA, M. A.
700 1 $aLIMA, S. do C.
700 1 $aVILELA, L.
700 1 $aZECH, W.
773 $tSoil Society of American Journal, Madison$gv.63, p.1778-1785, 1999.
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Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
02/03/2018 |
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Data da última atualização: |
08/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CHIRINDA, N.; ARENAS, L.; KATTO, M.; LOAIZA, S.; CORREA, F.; ISTHITANI, M.; LOBOGUERRERO, A. M.; MATÍNES-BORÓN, D.; GRATEROL, E.; JARAMILLO, S.; TORRES, C. F.; ARANGO, M.; GUSMÁN. M.; AVILA, I.; HUBE, S.; KURTZ, D. B.; ZORRILLA, G.; TERRA, J.; IRISARRI, P.; TARLERA, S.; LAHUE, G.; SCIVITTARO, W. B.; NOGUERA, A.; BAYER, C. |
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Afiliação: |
Ngonidzashe Chirinda; Laura Arenas; Maria Katto; Sandra Loaiza; Fernando Correa; Manabu Isthitani; Ana Maria Loboguerrero; Deissy Martínez-Barón; Eduardo Graterol; Santiago Jaramillo; Carlos Felipe Torres; Miguel Arango; Myriam Guzmán; Ivan Avila; Sara Hube; Ditmar Bernardo Kurtz; Gonzalo Zorrilla; Jose Terra; Pilar Irisarri; Silvana Tarlera; Gabriel LaHue; WALKYRIA BUENO SCIVITTARO, CPACT; Aldo Noguera; Cimelio Bayer. |
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Título: |
Sustainable and Low Greenhouse Gas Emitting Rice Production in Latin America and the Caribbean: A Review on the Transition from Ideality to Reality. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Sustainability, v. 10, n. 3, p. 4-16, 2018. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Methane emission; Mitigation prospect; Nitrous oxide emission; Paddy fields; Residue management. |
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Thesaurus NAL: |
greenhouse gas emissions. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/173478/1/Walkyria-Sustainability-10-00671-versao-publicada.pdf
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Marc: |
LEADER 01292naa a2200457 a 4500
001 2088445
005 2018-05-08
008 2018 bl uuuu u00u1 u #d
100 1 $aCHIRINDA, N.
245 $aSustainable and Low Greenhouse Gas Emitting Rice Production in Latin America and the Caribbean$bA Review on the Transition from Ideality to Reality.$h[electronic resource]
260 $c2018
650 $agreenhouse gas emissions
653 $aMethane emission
653 $aMitigation prospect
653 $aNitrous oxide emission
653 $aPaddy fields
653 $aResidue management
700 1 $aARENAS, L.
700 1 $aKATTO, M.
700 1 $aLOAIZA, S.
700 1 $aCORREA, F.
700 1 $aISTHITANI, M.
700 1 $aLOBOGUERRERO, A. M.
700 1 $aMATÍNES-BORÓN, D.
700 1 $aGRATEROL, E.
700 1 $aJARAMILLO, S.
700 1 $aTORRES, C. F.
700 1 $aARANGO, M.
700 1 $aGUSMÁN. M.
700 1 $aAVILA, I.
700 1 $aHUBE, S.
700 1 $aKURTZ, D. B.
700 1 $aZORRILLA, G.
700 1 $aTERRA, J.
700 1 $aIRISARRI, P.
700 1 $aTARLERA, S.
700 1 $aLAHUE, G.
700 1 $aSCIVITTARO, W. B.
700 1 $aNOGUERA, A.
700 1 $aBAYER, C.
773 $tSustainability$gv. 10, n. 3, p. 4-16, 2018.
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