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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Mandioca e Fruticultura. |
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Data corrente: |
13/11/2015 |
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Data da última atualização: |
15/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, S. P.; CÂNDIDO, M. J. D.; WEBER, O. B.; XAVIER, F. A. da S.; ESCOBAR, M. E. O.; OLIVEIRA, T. S. |
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Afiliação: |
Sâmia P. Oliveira, Universidade Federal do Ceará - UFC.; Magno José D. Cândido, Universidade Federal do Ceará - UFC.; OLMAR BALLER WEBER, CNPAT; FRANCISCO ALISSON DA SILVA XAVIER, CNPMF; Maria Eugenia O. Escobar, Universidade Federal do Ceará - UFC.; Teógenes S. Oliveira, Departamento de Ciência do Solo, Universidade Federal de Viçosa. |
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Título: |
Conversion of forest into irrigated pasture I. Changes in the chemical and biological properties of the soil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Catena, v. 137, p. 508-516, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The conversion of forest into pasture affects several properties and functions of the soil including the cycling carbon and other nutrients. Changes in selected chemical and biological properties of the soilwere studied in an area of intensive irrigated pasture (PAST) and compared to soil under native vegetation (NV). The selected soil properties evaluated were: total organic carbon (TOC), total nitrogen (TN), levels of N-NH4 + and N-NO3 -, humic substances (fulvic and humic acids and humin), physical fractionation of the soil organic matter, water-soluble carbon (WSC), C and N microbial biomass (MB-C and MB-N), C-CO2 evolution, and the presence of spores of arbuscular mycorrhizal fungi. The conversion of forest into pasture, and the adopted management (rotational grazing, irrigation and fertilisation) led to significant increases in soil organic matter at the surface, when compared to natural conditions. Some losses howeverwere also seen at deeper layers, as water-soluble carbon, indicating that irrigation of soils with a sandy texture should be better planned to avoid loss of organic matter and nutrients, or contamination of the groundwater. The greater metabolic quotient in PAST than in NV is an indication of the large loss of carbon (C),whichmay explain the C?CO2 emissions and may demonstrate disturbances in an area of intense productivitywith elevated levels of C. Labile organic matter, such aswater-soluble or related to microbial activity, were the most sensitive to the effects of land use, reflecting behaviour that can compromise the use of land as pasture under the conditions of this study. MenosThe conversion of forest into pasture affects several properties and functions of the soil including the cycling carbon and other nutrients. Changes in selected chemical and biological properties of the soilwere studied in an area of intensive irrigated pasture (PAST) and compared to soil under native vegetation (NV). The selected soil properties evaluated were: total organic carbon (TOC), total nitrogen (TN), levels of N-NH4 + and N-NO3 -, humic substances (fulvic and humic acids and humin), physical fractionation of the soil organic matter, water-soluble carbon (WSC), C and N microbial biomass (MB-C and MB-N), C-CO2 evolution, and the presence of spores of arbuscular mycorrhizal fungi. The conversion of forest into pasture, and the adopted management (rotational grazing, irrigation and fertilisation) led to significant increases in soil organic matter at the surface, when compared to natural conditions. Some losses howeverwere also seen at deeper layers, as water-soluble carbon, indicating that irrigation of soils with a sandy texture should be better planned to avoid loss of organic matter and nutrients, or contamination of the groundwater. The greater metabolic quotient in PAST than in NV is an indication of the large loss of carbon (C),whichmay explain the C?CO2 emissions and may demonstrate disturbances in an area of intense productivitywith elevated levels of C. Labile organic matter, such aswater-soluble or related to microbial activity, were the most sensitive to th... Mostrar Tudo |
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Palavras-Chave: |
Frações da matéria orgânica; Grassland; Irrigated sandy soils; Organic matter fractions; Pradaria; Qualidade de solo; Solos arenosos irrigadas. |
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Thesagro: |
Irrigação; Manejo do Solo; Solo. |
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Thesaurus Nal: |
Irrigation; Soil; soil management; soil quality. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02624naa a2200349 a 4500
001 2048850
005 2017-09-15
008 2016 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, S. P.
245 $aConversion of forest into irrigated pasture I. Changes in the chemical and biological properties of the soil.$h[electronic resource]
260 $c2016
520 $aThe conversion of forest into pasture affects several properties and functions of the soil including the cycling carbon and other nutrients. Changes in selected chemical and biological properties of the soilwere studied in an area of intensive irrigated pasture (PAST) and compared to soil under native vegetation (NV). The selected soil properties evaluated were: total organic carbon (TOC), total nitrogen (TN), levels of N-NH4 + and N-NO3 -, humic substances (fulvic and humic acids and humin), physical fractionation of the soil organic matter, water-soluble carbon (WSC), C and N microbial biomass (MB-C and MB-N), C-CO2 evolution, and the presence of spores of arbuscular mycorrhizal fungi. The conversion of forest into pasture, and the adopted management (rotational grazing, irrigation and fertilisation) led to significant increases in soil organic matter at the surface, when compared to natural conditions. Some losses howeverwere also seen at deeper layers, as water-soluble carbon, indicating that irrigation of soils with a sandy texture should be better planned to avoid loss of organic matter and nutrients, or contamination of the groundwater. The greater metabolic quotient in PAST than in NV is an indication of the large loss of carbon (C),whichmay explain the C?CO2 emissions and may demonstrate disturbances in an area of intense productivitywith elevated levels of C. Labile organic matter, such aswater-soluble or related to microbial activity, were the most sensitive to the effects of land use, reflecting behaviour that can compromise the use of land as pasture under the conditions of this study.
650 $aIrrigation
650 $aSoil
650 $asoil management
650 $asoil quality
650 $aIrrigação
650 $aManejo do Solo
650 $aSolo
653 $aFrações da matéria orgânica
653 $aGrassland
653 $aIrrigated sandy soils
653 $aOrganic matter fractions
653 $aPradaria
653 $aQualidade de solo
653 $aSolos arenosos irrigadas
700 1 $aCÂNDIDO, M. J. D.
700 1 $aWEBER, O. B.
700 1 $aXAVIER, F. A. da S.
700 1 $aESCOBAR, M. E. O.
700 1 $aOLIVEIRA, T. S.
773 $tCatena$gv. 137, p. 508-516, 2016.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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Biblioteca |
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Tipo/Formato |
Classificação |
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Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
16/06/2008 |
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Data da última atualização: |
16/06/2008 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
GONZAGA, V.; SANTOS, J. M. dos; SILVA, V. R. da. |
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Título: |
Espécies de Pratylenchus ocorrentes em diferentes culturas. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, Brasília, DF, v. 29, p. S217, ago. 2004. |
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Idioma: |
Português |
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Notas: |
Edição dos Resumos do XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, ago. 2004. |
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Palavras-Chave: |
Cana-de-açúcar. |
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Thesagro: |
Batata; Milho; Nematóide; Soja. |
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Thesaurus NAL: |
Pratylenchus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00663naa a2200217 a 4500
001 1190174
005 2008-06-16
008 2004 bl uuuu u00u1 u #d
100 1 $aGONZAGA, V.
245 $aEspécies de Pratylenchus ocorrentes em diferentes culturas.
260 $c2004
500 $aEdição dos Resumos do XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, ago. 2004.
650 $aPratylenchus
650 $aBatata
650 $aMilho
650 $aNematóide
650 $aSoja
653 $aCana-de-açúcar
700 1 $aSANTOS, J. M. dos
700 1 $aSILVA, V. R. da
773 $tFitopatologia Brasileira, Brasília, DF$gv. 29, p. S217, ago. 2004.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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