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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
30/03/2022 |
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Data da última atualização: |
10/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOREIRA, E. D. S.; OLIVEIRA, A. F. de; SANTOS, C. A. dos; GONÇALVES, L. C.; VIANA, M. C. M.; MARRIEL, I. E.; GONTIJO NETO, M. M.; ALVARENGA, R. C.; LANA, A. M. Q. |
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Afiliação: |
ELWIRA DAPHINN SILVA MOREIRA, Universidade Federal de Minas Gerais; ALAN FIGUEIREDO DE OLIVEIRA, Universidade Federal de Minas Gerais; CLAUDINEI ALVES DOS SANTOS, Universidade Federal de Minas Gerais; LÚCIO CARLOS GONÇALVES, Universidade Federal de Minas Gerais; MARIA CELUTA MACHADO VIANA, Epamig; IVANILDO EVODIO MARRIEL, CNPMS; MIGUEL MARQUES GONTIJO NETO, CNPMS; RAMON COSTA ALVARENGA, CNPMS; ÂNGELA MARIA QUINTÃO LANA, Universidade Federal de Minas Gerais. |
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Título: |
Soil carbon stock and biological activity in silvopastoral systems planted with Eucalyptus grandis in a tropical climate. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Soil Research, v. 60, n. 7, p. 705-718, 2022. |
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DOI: |
https://doi.org/10.1071/SR21223 |
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Idioma: |
Inglês |
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Conteúdo: |
Context: There is little information on the effects of tree densities and ages of silvopastoral systems (SSPs) on total soil carbon stock (TSCS). Aims: This study aimed to evaluate the TSCS, carbon and nitrogen fractionation and biological activity in SSPs planted with Eucalyptus grandis in different densities and ages. Methods: Two SSPs (333 or 166 trees ha?1) and one full sun pasture (FSP) grown for 5 or 7 years and native vegetation (NV) were evaluated (seven treatments). Samples were collected up to 1 m deep to evaluate the variables. Key results: Particulate organic carbon (POC) and particulate organic nitrogen (PON) were higher (P < 0.05) in FSP (14.1 and 0.725 g kg?1), intermediate in SSP (9.88 and 0.46 g kg?1) and lower in NV (6.12 and 0.29 g kg?1). TSCS was 44.8% (194 vs 134 Mg ha?1; P < 0.001) higher in SSP and FSP compared to NV. Higher tree density reduced TSCS in younger systems, but without effect on older systems. TSCS was 13.7% (207 vs 182 Mg ha?1; P = 0.026), POC was 52.0% (11.9 vs 7.83 g kg?1; P < 0.001) and PON was 54.4% (0.556 vs 0.360 g kg?1; P < 0.001) higher in SSP for 7 compared to 5 years, respectively. Conclusions: Tree density had a limited effect on TSCS. Higher SSP age increased carbon sequestration, probably due to greater cycling in the particulate fraction and better biological activity. Implications: The SSP and well-managed FSP are good strategies to increase TSCS compared to NV, and their use can improve environmental indicators. |
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Palavras-Chave: |
Agrofloresta; Ciclagem de nutriente; Integração pecuária-floresta; Manejo de carbono; Manejo de nitrogênio; Sequestro de carbono; Sistema integrado. |
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Thesagro: |
Efeito Estufa; Produção Integrada; Sistema de Produção. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 02595naa a2200349 a 4500
001 2141576
005 2022-11-10
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1071/SR21223$2DOI
100 1 $aMOREIRA, E. D. S.
245 $aSoil carbon stock and biological activity in silvopastoral systems planted with Eucalyptus grandis in a tropical climate.$h[electronic resource]
260 $c2022
520 $aContext: There is little information on the effects of tree densities and ages of silvopastoral systems (SSPs) on total soil carbon stock (TSCS). Aims: This study aimed to evaluate the TSCS, carbon and nitrogen fractionation and biological activity in SSPs planted with Eucalyptus grandis in different densities and ages. Methods: Two SSPs (333 or 166 trees ha?1) and one full sun pasture (FSP) grown for 5 or 7 years and native vegetation (NV) were evaluated (seven treatments). Samples were collected up to 1 m deep to evaluate the variables. Key results: Particulate organic carbon (POC) and particulate organic nitrogen (PON) were higher (P < 0.05) in FSP (14.1 and 0.725 g kg?1), intermediate in SSP (9.88 and 0.46 g kg?1) and lower in NV (6.12 and 0.29 g kg?1). TSCS was 44.8% (194 vs 134 Mg ha?1; P < 0.001) higher in SSP and FSP compared to NV. Higher tree density reduced TSCS in younger systems, but without effect on older systems. TSCS was 13.7% (207 vs 182 Mg ha?1; P = 0.026), POC was 52.0% (11.9 vs 7.83 g kg?1; P < 0.001) and PON was 54.4% (0.556 vs 0.360 g kg?1; P < 0.001) higher in SSP for 7 compared to 5 years, respectively. Conclusions: Tree density had a limited effect on TSCS. Higher SSP age increased carbon sequestration, probably due to greater cycling in the particulate fraction and better biological activity. Implications: The SSP and well-managed FSP are good strategies to increase TSCS compared to NV, and their use can improve environmental indicators.
650 $aEfeito Estufa
650 $aProdução Integrada
650 $aSistema de Produção
653 $aAgrofloresta
653 $aCiclagem de nutriente
653 $aIntegração pecuária-floresta
653 $aManejo de carbono
653 $aManejo de nitrogênio
653 $aSequestro de carbono
653 $aSistema integrado
700 1 $aOLIVEIRA, A. F. de
700 1 $aSANTOS, C. A. dos
700 1 $aGONÇALVES, L. C.
700 1 $aVIANA, M. C. M.
700 1 $aMARRIEL, I. E.
700 1 $aGONTIJO NETO, M. M.
700 1 $aALVARENGA, R. C.
700 1 $aLANA, A. M. Q.
773 $tSoil Research$gv. 60, n. 7, p. 705-718, 2022.
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| 11. |  | CARVALHO, A. C. P. P. de; TOMBOLATO, A. F. C.; RODRIGUES, A. A. de J.; SANTOS. E. de O.; SILVA, F. da. Panorama da cultura de tecidos no Brasil com ênfase em flores e plantas ornamentais. In: JUNGHANS, T. G.; SOUZA, A. da S. (Ed). Aspectos práticos da micropropagação de plantas. 2. ed. Brasília, DF: Embrapa, 2013. Parte 1, Cap. 1, p. 13-53| Tipo: Capítulo em Livro Técnico-Científico |
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| Registros recuperados : 19 | |
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