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Registros recuperados : 14 | |
3. | | ARAUJO, J. K. S.; SOUZA-JÚNIOR, V. S.; MARQUES, F. A.; SOUZA, R. A. S.; VORONEY, P. Frações húmicas e caracterização termogravimétrica da humina de latossolos húmicos. In: CONGRESO LATINOAMERICANO DE LA CIENCIA DEL SUELO, 20.; CONGRESO PERUANO DE LA CIENCIA DEL SUELO, 16., 2014, Cusco. Educar para preservar el suelo y conservar la vida en la tierra: trabajos. Cusco: Sociedad Latinoamericana de la Ciencia del Suelo, 2014. Biblioteca(s): Embrapa Solos. |
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4. | | ARAUJO, J. K. S.; SOUZA-JÚNIOR, V. S.; MARQUES, F. A.; SOUZA, R. A. S.; VORONEY, P. Relações entre o carbono e atributos químicos de latossolos húmicos, Nordeste-Brasil. In: CONGRESO LATINOAMERICANO DE LA CIENCIA DEL SUELO, 20.; CONGRESO PERUANO DE LA CIENCIA DEL SUELO, 16., 2014, Cusco. Educar para preservar el suelo y conservar la vida en la tierra: trabajos. Cusco: Sociedad Latinoamericana de la Ciencia del Suelo, 2014. Biblioteca(s): Embrapa Solos. |
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5. | | ARAUJO, J. K. S.; SOUZA JÚNIOR, V. S. de; MARQUES, F. A.; VORONEY, P.; SOUZA, R. A. da S.; CORRÊA, M. M.; CÂMARA, E. R. G. Umbric Ferralsols along a climosequence from the Atlantic coast to the highlands of northeastern Brazil: characterization and carbon mineralization. Geoderma, v. 293, p. 34-43, May 2017. Biblioteca(s): Embrapa Solos. |
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6. | | MENDONÇA, C. E. S.; RIBEIRO FILHO, M. R.; GONÇALVES, I. V. C.; SILVA, M. S. L. da; ARAÚJO, J. K. S.; FERREIRA, G. B.; CHAVES, V. C. Avaliação das alterações químicas após 12 anos sob irrigação por gravidade e localizada: II. Em um Argissolo Vermelho-Amarelo. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. [Viçosa, MG]: SBCS; Fortaleza: UFC, 2009. 1 CD-ROM. Biblioteca(s): Embrapa Solos. |
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7. | | GONÇALVES, I. V. C.; MENDONÇA, C. E. S.; SILVA, M. S. L. da; RIBEIRO FILHO, M. R.; ARAÚJO. J. K. S.; FERREIRA, G. B.; CHAVES, V. C. Estudo do lençol freático após 10 anos sob irrigação localizada: III. Em um Neossolo Quartzarênico. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. [Viçosa, MG]: SBCS; Fortaleza: UFC, 2009. 1 CD-ROM. Biblioteca(s): Embrapa Solos. |
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8. | | ARAÚJO, J. K. S.; MENDONÇA, C. E. S.; RIBEIRO FILHO, M. R.; SILVA, M. S. L. da; GONGALVES, I. V. C.; FERREIRA, G. B.; CHAVES, V. C. Estudo do lençol freático após 12 anos sob irrigação por gravidade e localizada: I. Em um Argissolo Vermelho-Amarelo. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. [Viçosa, MG]: SBCS; Fortaleza: UFC, 2009. 1 CD-ROM. Biblioteca(s): Embrapa Solos. |
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9. | | COSTA, E. U. C. da; ARAUJO, J. K. S.; NEVES, L. V. de M. W.; ARAUJO FILHO, J. C. de; SOUZA, J. E. S. de; CORRÊA, M. M.; RIBEIRO FILHO, M. R.; SOUZA JÚNIOR, V. S. de. Genesis and classification of Nitisols from volcano-sedimentary lithology in northeastern Brazil. Revista Brasileira de Ciência do Solo, v. 43, article e0180101, 2019. Biblioteca(s): Embrapa Solos. |
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10. | | NEVES, L. V. de M. W.; FRACETTO, F. J. C.; FRACETTO, G. G. M.; ARAUJO FILHO, J. C. de; ARAUJO, J. K. S.; SANTOS, J. C. B. dos; MENDES JÚNIOR, J. P.; SOUZA JÚNIOR, V. D. de. Microbial abundance and C and N stocks in tropical degraded Planosols from semiarid northeastern Brazil. Catena, v. 196, 104931, Jan. 2021. Biblioteca(s): Embrapa Solos. |
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11. | | SOUSA, M. G.; ARAUJO, J. K. S.; FERREIRA, T. O.; ANDRADE, G. R. P.; ARAUJO FILHO, J. C. de; FRACETTO, G. G. M.; SANTOS, J. C. B.; FRACETTO, F. J. C.; LIMA, G. K.; SOUZA JUNIOR, V. Long-term effects of irrigated agriculture on Luvisol pedogenesis in semi-arid region, northeastern Brazil. Catena, v. 206, 105529, Nov. 2021. Biblioteca(s): Embrapa Solos. |
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12. | | SOUSA, M. G.; ARAUJO, J. K. S.; FRACETTO, G. G. M.; FERREIRA, T. O.; FRACETTO, F. J. C.; ARAUJO FILHO, J. C. de; OTERO, X. L.; SANTOS, J. C. B. dos; SILVA, A. H. N. da; SOUZA JUNIOR, V. S. de. Changes in organic carbon and microbiology community structure due to long-term irrigated agriculture on Luvisols in the Brazilian semi-arid region. Catena, v. 212, 106058, May 2022. Biblioteca(s): Embrapa Solos. |
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13. | | NEVES, L. V. de M. W.; SOUSA, J. E. S. de; SANTOS, J. C. B. dos; ARAUJO FILHO, J. C. de; CORRÊA, M. M.; SOUSA, M. G.; FRACETTO, F. J. C.; FRACETTO, G. G. M.; ARAUJO, J. K. S.; FREIRE, G. A. P.; FERREIRA, T. O.; SOUZA JÚNIOR, V. S. de. Weathering of gneiss saprolites and formation of Planosols under semiarid climate (NE Brazil). Journal of South American Earth Sciences, v. 123, 104206, Mar. 2023. Biblioteca(s): Embrapa Solos. |
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14. | | SOUSA, J. E. S. de; ANDRADE, G. R. P.; ARAUJO FILHO, J. C. de; SANTOS, J. C. B. dos; CORRÊA, M. M.; FERREIRA, T. O.; CAMARGO, P. B. de; ARAÚJO, J. K. S.; SILVA, A. H. N. da; SOUSA, M. G.; SOUZA JÚNIOR, V. S. de. Weathering and mineral alteration of metamorphic rocks and genesis of Planosols along a rainfall gradient in Borborema Province, Northeast Brazil. Geoderma Regional, v. 33, e00642, Jun. 2023. Biblioteca(s): Embrapa Solos. |
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Registros recuperados : 14 | |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
04/01/2021 |
Data da última atualização: |
18/02/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
NEVES, L. V. de M. W.; FRACETTO, F. J. C.; FRACETTO, G. G. M.; ARAUJO FILHO, J. C. de; ARAUJO, J. K. S.; SANTOS, J. C. B. dos; MENDES JÚNIOR, J. P.; SOUZA JÚNIOR, V. D. de. |
Afiliação: |
LAÉRCIO VIEIRA DE MELO WANDERLEY NEVES, UFRPE; FELIPE JOSÉ CURY FRACETTO, UFRPE; GISELLE GOMES MONTEIRO FRACETTO, UFRPE; JOSE COELHO DE ARAUJO FILHO, CNPS; JANE KELLY SILVA ARAUJO, UFRPE; JEAN CHEYSON BARROS DOS SANTOS, UFRPE; JOSÉ PETRÔNIO MENDES JÚNIOR, UFRPE; VALDOMIRO SEVERINO DE SOUZA JÚNIOR, UFRPE. |
Título: |
Microbial abundance and C and N stocks in tropical degraded Planosols from semiarid northeastern Brazil. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Catena, v. 196, 104931, Jan. 2021. |
DOI: |
https://doi.org/10.1016/j.catena.2020.104931 |
Idioma: |
Inglês |
Conteúdo: |
Improper management and exploitation of the natural resources of the semiarid Planosols have triggered irreparable degradation processes in which vegetation can no longer reestablish itself naturally. We investigated preserved and degraded Planosols from Pernambuco State, Brazil, to determine total C and N stocks and quantify the functional and total microorganisms. We hypothesized that the degraded Planosol would have: i-significant reductions in C and N stocks, microbial biomass and activity in relation to the soil with preserved vegetation; ii-significant decreases in the proportion of total diazotrophic bacteria and archaea, ammonia-oxidizing bacteria, iron-reducing and -oxidizing bacteria and in alkaline phosphatase producers along the pedogenetic horizons. Thus, microbial biomass, soil basal respiration and metabolic and microbial quotients were obtained. Furthermore, total and functional gene copies were quantified by quantitative polymerase chain reaction (qPCR), and the functionality of biological nitrogen fixation (BNF) was determined using an acetylene reduction assay. In degraded Planosols, the activity from the present diazotrophs has been responsible for maintaining soil N stocks (i.e. soil N stocks without significant differences between the evaluated Planosols), but the soil C stocks were halved. Biomass and microbial activity did not show significant differences between two Planosols and there was no apparent metabolic stress from the identified microbiota. We found a significant proportion of structural and functional microorganisms in both Planosols. There were many archaea predominating in the Bt pedogenetic horizon in both Planosols, and a high proportion of microorganismal alkaline phosphatase was also found. We highlight the need for studies on BNF efficiency, especially focusing on archaea and free-living bacteria, as they are performing this important biological function, even in totally degraded semiarid soils. MenosImproper management and exploitation of the natural resources of the semiarid Planosols have triggered irreparable degradation processes in which vegetation can no longer reestablish itself naturally. We investigated preserved and degraded Planosols from Pernambuco State, Brazil, to determine total C and N stocks and quantify the functional and total microorganisms. We hypothesized that the degraded Planosol would have: i-significant reductions in C and N stocks, microbial biomass and activity in relation to the soil with preserved vegetation; ii-significant decreases in the proportion of total diazotrophic bacteria and archaea, ammonia-oxidizing bacteria, iron-reducing and -oxidizing bacteria and in alkaline phosphatase producers along the pedogenetic horizons. Thus, microbial biomass, soil basal respiration and metabolic and microbial quotients were obtained. Furthermore, total and functional gene copies were quantified by quantitative polymerase chain reaction (qPCR), and the functionality of biological nitrogen fixation (BNF) was determined using an acetylene reduction assay. In degraded Planosols, the activity from the present diazotrophs has been responsible for maintaining soil N stocks (i.e. soil N stocks without significant differences between the evaluated Planosols), but the soil C stocks were halved. Biomass and microbial activity did not show significant differences between two Planosols and there was no apparent metabolic stress from the identified microbiota. ... Mostrar Tudo |
Palavras-Chave: |
Genes Funcionais. |
Thesagro: |
Biomassa; Horizonte; Solo. |
Thesaurus NAL: |
Archaea; Microbial biomass; Soil horizons. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02879naa a2200301 a 4500 001 2128963 005 2021-02-18 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.catena.2020.104931$2DOI 100 1 $aNEVES, L. V. de M. W. 245 $aMicrobial abundance and C and N stocks in tropical degraded Planosols from semiarid northeastern Brazil.$h[electronic resource] 260 $c2021 520 $aImproper management and exploitation of the natural resources of the semiarid Planosols have triggered irreparable degradation processes in which vegetation can no longer reestablish itself naturally. We investigated preserved and degraded Planosols from Pernambuco State, Brazil, to determine total C and N stocks and quantify the functional and total microorganisms. We hypothesized that the degraded Planosol would have: i-significant reductions in C and N stocks, microbial biomass and activity in relation to the soil with preserved vegetation; ii-significant decreases in the proportion of total diazotrophic bacteria and archaea, ammonia-oxidizing bacteria, iron-reducing and -oxidizing bacteria and in alkaline phosphatase producers along the pedogenetic horizons. Thus, microbial biomass, soil basal respiration and metabolic and microbial quotients were obtained. Furthermore, total and functional gene copies were quantified by quantitative polymerase chain reaction (qPCR), and the functionality of biological nitrogen fixation (BNF) was determined using an acetylene reduction assay. In degraded Planosols, the activity from the present diazotrophs has been responsible for maintaining soil N stocks (i.e. soil N stocks without significant differences between the evaluated Planosols), but the soil C stocks were halved. Biomass and microbial activity did not show significant differences between two Planosols and there was no apparent metabolic stress from the identified microbiota. We found a significant proportion of structural and functional microorganisms in both Planosols. There were many archaea predominating in the Bt pedogenetic horizon in both Planosols, and a high proportion of microorganismal alkaline phosphatase was also found. We highlight the need for studies on BNF efficiency, especially focusing on archaea and free-living bacteria, as they are performing this important biological function, even in totally degraded semiarid soils. 650 $aArchaea 650 $aMicrobial biomass 650 $aSoil horizons 650 $aBiomassa 650 $aHorizonte 650 $aSolo 653 $aGenes Funcionais 700 1 $aFRACETTO, F. J. C. 700 1 $aFRACETTO, G. G. M. 700 1 $aARAUJO FILHO, J. C. de 700 1 $aARAUJO, J. K. S. 700 1 $aSANTOS, J. C. B. dos 700 1 $aMENDES JÚNIOR, J. P. 700 1 $aSOUZA JÚNIOR, V. D. de 773 $tCatena$gv. 196, 104931, Jan. 2021.
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