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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Solos. |
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Data corrente: |
05/12/2017 |
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Data da última atualização: |
11/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, F. M.; BALIEIRO, F. de C.; MARCELO ANTONIOL FONTES; CHAER, G. M. |
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Afiliação: |
FELIPE MARTINI SANTOS, UFRRJ; FABIANO DE CARVALHO BALIEIRO, CNPS; MARCELO ANTONIOL FONTES, CNPAB; GUILHERME MONTANDON CHAER, CNPAB. |
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Título: |
Understanding the enhanced litter decomposition of mixed-species plantations of Eucalyptus and Acacia mangium. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Plant and Soil, v. 423, n. 1/2, p. 141-155, Feb. 2018. |
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DOI: |
https://doi.org/10.1007/s11104-017-3491-7 |
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Idioma: |
Inglês |
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Conteúdo: |
Background and aims Soil microbial-derived litter decomposition represents an important step in the global carbon and nutrient cycling and, at the local level, is primarily driven by litter chemistry. Here, we assessed how mixed-species plantations with Eucalyptus urograndis and Acacia mangium could be a key to enhancing litter production, decomposition, and soil microbial activity. Methods The relationships between litter decomposition and litter quality and quantity were compared among 6-year-old monocultures of E. urograndis and A. mangium (E100+N and A100, respectively) and a mixed plantation of both species (E50A50). Additionally, we evaluated soil microbial biomass carbon (MBC) and nitrogen (MBN), soil basal respiration (SBR), soil enzymes and the N mineralization potential. Results The return to soil of N via litterfall in E50A50 was greater than E100+N, while the return of P in E100+N and E50A50 were higher than A100. The decomposition rate in A100 was slower than in the E50A50 and E100+N. The microbial activity, represented by soil enzyme activities (proteases and N-acetyl-B- glucosaminidases), was consistently higher in E50A50 than in A100. Conclusion The E50A50 presented a more balanced supply ofN and P associated to a better structural quality of the litter for microbial metabolism, with synergic reflections on decomposition rates and release of nitrogen. |
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Palavras-Chave: |
Árvores fixadoras de nitrogênio; Decomposer starvation; N P stoichiometry; Nutrient cycling. |
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Thesagro: |
Atividade Enzimática; Nutriente. |
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Thesaurus Nal: |
Enzyme activity; Intercropping. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra
S Ciências Biológicas |
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Marc: |
LEADER 02248naa a2200265 a 4500
001 2081488
005 2021-11-11
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11104-017-3491-7$2DOI
100 1 $aSANTOS, F. M.
245 $aUnderstanding the enhanced litter decomposition of mixed-species plantations of Eucalyptus and Acacia mangium.$h[electronic resource]
260 $c2018
520 $aBackground and aims Soil microbial-derived litter decomposition represents an important step in the global carbon and nutrient cycling and, at the local level, is primarily driven by litter chemistry. Here, we assessed how mixed-species plantations with Eucalyptus urograndis and Acacia mangium could be a key to enhancing litter production, decomposition, and soil microbial activity. Methods The relationships between litter decomposition and litter quality and quantity were compared among 6-year-old monocultures of E. urograndis and A. mangium (E100+N and A100, respectively) and a mixed plantation of both species (E50A50). Additionally, we evaluated soil microbial biomass carbon (MBC) and nitrogen (MBN), soil basal respiration (SBR), soil enzymes and the N mineralization potential. Results The return to soil of N via litterfall in E50A50 was greater than E100+N, while the return of P in E100+N and E50A50 were higher than A100. The decomposition rate in A100 was slower than in the E50A50 and E100+N. The microbial activity, represented by soil enzyme activities (proteases and N-acetyl-B- glucosaminidases), was consistently higher in E50A50 than in A100. Conclusion The E50A50 presented a more balanced supply ofN and P associated to a better structural quality of the litter for microbial metabolism, with synergic reflections on decomposition rates and release of nitrogen.
650 $aEnzyme activity
650 $aIntercropping
650 $aAtividade Enzimática
650 $aNutriente
653 $aÁrvores fixadoras de nitrogênio
653 $aDecomposer starvation
653 $aN P stoichiometry
653 $aNutrient cycling
700 1 $aBALIEIRO, F. de C.
700 1 $aMARCELO ANTONIOL FONTES
700 1 $aCHAER, G. M.
773 $tPlant and Soil$gv. 423, n. 1/2, p. 141-155, Feb. 2018.
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