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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
17/02/2023 |
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Data da última atualização: |
17/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LEAL, O. dos A.; JIMÉNEZ-MORILLO, N. T.; GONZÁLEZ-PÉREZ, J. A.; KNICKER, H.; COSTA, F. de S.; JIMÉNEZ-MORILLO, P. N.; CARVALHO JUNIOR, J. A. de; SANTOS, J. C. dos; DICK, D. P. |
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Afiliação: |
OTÁVIO DOS ANJOS LEAL, INSTITUTE OF BIO AND GESOCIENCE AGROSPHERE; NICASIO T. JIMÉNEZ-MORILLO, UNIVERSIDADE DE ÉVORA /I NSTITUTO DE RECURSOS NATURALES Y AGROBIOLOGÍA DE SEVILLA; JOSÉ A. GONZÁLEZ-PÉREZ, INSTITUTO DE RECURSOS NATURALES Y AGROBIOLOGÍA DE SEVILLA; HEIKE KNICKER, INSTITUTO DE RECURSOS NATURALES Y AGROBIOLOGÍA DE SEVILLA; FALBERNI DE SOUZA COSTA, CPAF-AC; PEDRO N. JIMÉNEZ-MORILLO, UNIVERSIDAD PABLO DE OLAVIDE; JOÃO ANDRADE DE CARVALHO JÚNIOR, UNIVERSIDADE ESTADUAL PAULISTA; JOSÉ CARLOS DOS SANTOS, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; DEBORAH PINHEIRO DICK, UNIVESIDADE FEDERAL DO RIO GRANDE DO SUL. |
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Título: |
Soil organic matter molecular composition shifts driven by forest regrowth or pasture after slash-and-burn of Amazon Forest. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
International Journal of Environmental Research and Public Health, v. 20, n. 4, 3485, Feb. 2023. |
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ISSN: |
1661-7827 (impresso) / 1660-4601 (online) |
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DOI: |
https://doi.org/10.3390/ijerph20043485 |
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Idioma: |
Inglês |
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Conteúdo: |
Slash-and-burn of Amazon Forest (AF) for pasture establishment has increased the occurrence of AF wildfires. Recent studies emphasize soil organic matter (SOM) molecular composition as a principal driver of post-fire forest regrowth and restoration of AF anti-wildfire ambience. Nevertheless, SOM chemical shifts caused by AF fires and post-fire vegetation are rarely investigated at a molecular level. We employed pyrolysis-gas chromatography-mass spectrometry to reveal molecular changes in SOM (0?10, 40?50 cm depth) of a slash-burn-and-20-month-regrowth AF (BAF) and a 23-year Brachiaria pasture post-AF fire (BRA) site compared to native AF (NAF). In BAF (0-10 cm), increased abundance of unspecific aromatic compounds (UACs), polycyclic aromatic hydrocarbons (PAHs) and lipids (Lip) coupled with a depletion of polysaccharides (Pol) revealed strong lingering effects of fire on SOM. This occurs despite fresh litter deposition on soil, suggesting SOM minimal recovery and toxicity to microorganisms. Accumulation of recalcitrant compounds and slow decomposition of fresh forest material may explain the higher carbon content in BAF (0?5 cm). In BRA, SOM was dominated by Brachiaria contributions. At 40?50 cm, alkyl and hydroaromatic compounds accumulated in BRA, whereas UACs accumulated in BAF. UACs and PAH compounds were abundant in NAF, possibly air-transported from BAF. |
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Palavras-Chave: |
Acre; Acrisoles; Amazonia Occidental; Amazônia Ocidental; Analytical pyrolysis; Asentamiento humano; Assentamento Santa Luzia (AC); Composição molecular; Composición molecular; Cruzeiro do Sul (AC); Derruba-e-queima; Materia orgánica del suelo; Molecular composition; Nitroalcanos; Nitroalkanes; Pastizales; Química del suelo; Regeneración natural; Slash-and-burn agriculture; Van Krevelen 3D diagram; Western Amazon. |
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Thesagro: |
Brachiaria; Cultivo Migratório; Matéria Orgânica; Pastagem; Química do Solo; Regeneração Natural; Sistema de Cultivo; Solo. |
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Thesaurus Nal: |
Acrisols; Human settlements; Natural regeneration; Pastures; Shifting cultivation; Soil chemistry; Soil organic matter. |
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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/doc/1151856/1/27424.pdf
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Marc: |
LEADER 03468naa a2200673 a 4500
001 2151856
005 2023-05-17
008 2023 bl uuuu u00u1 u #d
022 $a1661-7827 (impresso) / 1660-4601 (online)
024 7 $ahttps://doi.org/10.3390/ijerph20043485$2DOI
100 1 $aLEAL, O. dos A.
245 $aSoil organic matter molecular composition shifts driven by forest regrowth or pasture after slash-and-burn of Amazon Forest.$h[electronic resource]
260 $c2023
520 $aSlash-and-burn of Amazon Forest (AF) for pasture establishment has increased the occurrence of AF wildfires. Recent studies emphasize soil organic matter (SOM) molecular composition as a principal driver of post-fire forest regrowth and restoration of AF anti-wildfire ambience. Nevertheless, SOM chemical shifts caused by AF fires and post-fire vegetation are rarely investigated at a molecular level. We employed pyrolysis-gas chromatography-mass spectrometry to reveal molecular changes in SOM (0?10, 40?50 cm depth) of a slash-burn-and-20-month-regrowth AF (BAF) and a 23-year Brachiaria pasture post-AF fire (BRA) site compared to native AF (NAF). In BAF (0-10 cm), increased abundance of unspecific aromatic compounds (UACs), polycyclic aromatic hydrocarbons (PAHs) and lipids (Lip) coupled with a depletion of polysaccharides (Pol) revealed strong lingering effects of fire on SOM. This occurs despite fresh litter deposition on soil, suggesting SOM minimal recovery and toxicity to microorganisms. Accumulation of recalcitrant compounds and slow decomposition of fresh forest material may explain the higher carbon content in BAF (0?5 cm). In BRA, SOM was dominated by Brachiaria contributions. At 40?50 cm, alkyl and hydroaromatic compounds accumulated in BRA, whereas UACs accumulated in BAF. UACs and PAH compounds were abundant in NAF, possibly air-transported from BAF.
650 $aAcrisols
650 $aHuman settlements
650 $aNatural regeneration
650 $aPastures
650 $aShifting cultivation
650 $aSoil chemistry
650 $aSoil organic matter
650 $aBrachiaria
650 $aCultivo Migratório
650 $aMatéria Orgânica
650 $aPastagem
650 $aQuímica do Solo
650 $aRegeneração Natural
650 $aSistema de Cultivo
650 $aSolo
653 $aAcre
653 $aAcrisoles
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aAnalytical pyrolysis
653 $aAsentamiento humano
653 $aAssentamento Santa Luzia (AC)
653 $aComposição molecular
653 $aComposición molecular
653 $aCruzeiro do Sul (AC)
653 $aDerruba-e-queima
653 $aMateria orgánica del suelo
653 $aMolecular composition
653 $aNitroalcanos
653 $aNitroalkanes
653 $aPastizales
653 $aQuímica del suelo
653 $aRegeneración natural
653 $aSlash-and-burn agriculture
653 $aVan Krevelen 3D diagram
653 $aWestern Amazon
700 1 $aJIMÉNEZ-MORILLO, N. T.
700 1 $aGONZÁLEZ-PÉREZ, J. A.
700 1 $aKNICKER, H.
700 1 $aCOSTA, F. de S.
700 1 $aJIMÉNEZ-MORILLO, P. N.
700 1 $aCARVALHO JUNIOR, J. A. de
700 1 $aSANTOS, J. C. dos
700 1 $aDICK, D. P.
773 $tInternational Journal of Environmental Research and Public Health$gv. 20, n. 4, 3485, Feb. 2023.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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Origem |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido; Embrapa Solos. |
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Data corrente: |
06/12/2018 |
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Data da última atualização: |
06/12/2018 |
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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: |
QUEIROZ, A. F. de; SALVIANO, A. M.; CUNHA, T. J. F.; OLSZEVSKI, N.; SOUZA JUNIOR, V. S.; OLIVEIRA NETO, M. B. de. |
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Afiliação: |
ALEXSANDRA F. DE QUEIROZ, Instituto Federal de Educação Ciência e Tecnologia do Rio Grande do Norte - IFRN; ALESSANDRA MONTEIRO SALVIANO, CPATSA; TONY JARBAS FERREIRA CUNHA, CPATSA; NELCI OLSZEVSKI, UNIVASF; VALDOMIRO S. DE SOUZA JÚNIOR, UFRPE; MANOEL BATISTA DE OLIVEIRA NETO, CNPS. |
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Título: |
Potentialities and limitations of agricultural use in soils of semi-arid region of the state of Bahia. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Anais da Academia Brasileira de Ciências, v. 90, n. 4, p. 3373-3387, oct./dec. 2018. |
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ISSN: |
1678-2690 |
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DOI: |
http://dx.doi.org/10.1590/0001-3765201820180029 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate the potentialities and limitations of the agricultural use of representative classes of semi-arid regions of the state of Bahia, based on the pedological and evaluation of their soil characteristics. Five areas were selected where trenches were opened to collect samples for the analyses: Eutric Haplustept which presents vulnerability to physical and chemical degradation due to poor drainage with risks of erosion, waterlogging, salinization and compaction but having good natural fertility; Abrupt Kandiustalf with high vulnerability to physical degradation due to the presence of gravel and pebbles which may limit the development of deep rooting plants and mechanization but also with good natural fertility; Typic quartzipsaments and Typic Eutrustalf with no limitations related to drainage as low risk of compaction but featuring limitation of low moisture-holding capacity and nutrients; and Arenic Haplustulf wose characteristics are high vulnerability to degradation due to the drainage limitation related to the Btx horizon cementing in addition to low natural fertility and therefore is not recommended to agricultural use. However, in general, they feature no serious impediments for agricultural use. The amounts of OM is low in all soils but the use of management systems aiming at their accumulation and maintenance in appropriate levels will contribute to the CEC increase as well as to improve the chemical and physical properties. |
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Palavras-Chave: |
Atributo físico; Bahia; Degradação do solo. |
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Thesagro: |
Deterioração do Solo; Física do Solo; Solo. |
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Thesaurus NAL: |
Soil degradation; Soil quality; Sustainable land management. |
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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/187859/1/0001-3765-aabc-90-04-3373.pdf
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Marc: |
LEADER 02486naa a2200313 a 4500
001 2100836
005 2018-12-06
008 2018 bl uuuu u00u1 u #d
022 $a1678-2690
024 7 $ahttp://dx.doi.org/10.1590/0001-3765201820180029$2DOI
100 1 $aQUEIROZ, A. F. de
245 $aPotentialities and limitations of agricultural use in soils of semi-arid region of the state of Bahia.$h[electronic resource]
260 $c2018
520 $aThe objective of this study was to evaluate the potentialities and limitations of the agricultural use of representative classes of semi-arid regions of the state of Bahia, based on the pedological and evaluation of their soil characteristics. Five areas were selected where trenches were opened to collect samples for the analyses: Eutric Haplustept which presents vulnerability to physical and chemical degradation due to poor drainage with risks of erosion, waterlogging, salinization and compaction but having good natural fertility; Abrupt Kandiustalf with high vulnerability to physical degradation due to the presence of gravel and pebbles which may limit the development of deep rooting plants and mechanization but also with good natural fertility; Typic quartzipsaments and Typic Eutrustalf with no limitations related to drainage as low risk of compaction but featuring limitation of low moisture-holding capacity and nutrients; and Arenic Haplustulf wose characteristics are high vulnerability to degradation due to the drainage limitation related to the Btx horizon cementing in addition to low natural fertility and therefore is not recommended to agricultural use. However, in general, they feature no serious impediments for agricultural use. The amounts of OM is low in all soils but the use of management systems aiming at their accumulation and maintenance in appropriate levels will contribute to the CEC increase as well as to improve the chemical and physical properties.
650 $aSoil degradation
650 $aSoil quality
650 $aSustainable land management
650 $aDeterioração do Solo
650 $aFísica do Solo
650 $aSolo
653 $aAtributo físico
653 $aBahia
653 $aDegradação do solo
700 1 $aSALVIANO, A. M.
700 1 $aCUNHA, T. J. F.
700 1 $aOLSZEVSKI, N.
700 1 $aSOUZA JUNIOR, V. S.
700 1 $aOLIVEIRA NETO, M. B. de
773 $tAnais da Academia Brasileira de Ciências$gv. 90, n. 4, p. 3373-3387, oct./dec. 2018.
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Embrapa Semiárido (CPATSA) |
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