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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
04/04/2017 |
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Data da última atualização: |
04/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DURIGAN, M. R.; CHERUBIN, M. R.; CAMARGO, P. B. de; FERREIRA, J. N.; BERENGUER, E.; GARDNER, T. A.; BARLOW, J.; DIAS, C. T. dos S.; SIGNOR, D.; OLIVEIRA JUNIOR, R. C. de; CERRI, C. E. P. |
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Afiliação: |
MARIANA REGINA DURIGAN, ESALQ/USP; MAURÍCIO ROBERTO CHERUBIN, CENA/USP; PLÍNIO BARBOSA DE CAMARGO, CENA/USP; JOICE NUNES FERREIRA, CPATU; ERIKA BERENGUER, Lancaster University / University of Oxford; TOBY ALAN GARDNER, International Institute for Sustainability / Stockholm Environment Institute; JOS BARLOW, Lancaster University / MPEG; CARLOS TADEU DOS SANTOS DIAS, ESALQ/USP; DIANA SIGNOR DEON, CPATSA; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; CARLOS EDUARDO PELLEGRINO CERRI, ESALQ/USP. |
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Título: |
Soil organic matter responses to anthropogenic forest disturbance and land use change in the Eastern Brazilian Amazon. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Sustainability, v. 9, n. 3, Mar. 2017. |
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ISSN: |
2071-1050 |
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DOI: |
http://dx.doi.org/10.3390/su9030379 |
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Idioma: |
Inglês |
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Conteúdo: |
Anthropogenic forest disturbance and land use change (LUC) in the Amazon region is the main source of greenhouse gas emissions to the atmosphere in Brazil, due to the carbon (C) and nitrogen (N) emitted from vegetation clearance. Land use conversion associated with management practices plays a key role in the distribution and origin of C in different soil organic matter (SOM) fractions. Here, we show how changing land use systems have influenced soil C and N stocks, SOM physical fractions, and the origin of SOM in the Santarém region of the eastern Brazilian Amazon. Soil C and N stocks were calculated for the surface layer of 0?30 cm. Anthropogenic disturbances to the standing forest, such as selective logging and wildfires, led to significant declines in soil C and N stocks. However, in the long-term, the conversion of the Amazon forest to pasture did not have a noticeable effect on soil C and N stocks, presumably because of additional inputs from pasture grasses. However, the conversion to cropland did lead to reductions in soil C and N content. According to the physical fractionation of SOM, LUC altered SOM quality, but silt and clay remained the combined fraction that contributed the most to soil C storage. Our results emphasize the importance of implementing more sustainable forest management systems, whilst also calling further attention to the need for fire monitoring systems, helping to ensure the resilience of C and N stocks and sequestration in forest soils; thereby contributing towards urgently needed ongoing efforts to mitigate climate change MenosAnthropogenic forest disturbance and land use change (LUC) in the Amazon region is the main source of greenhouse gas emissions to the atmosphere in Brazil, due to the carbon (C) and nitrogen (N) emitted from vegetation clearance. Land use conversion associated with management practices plays a key role in the distribution and origin of C in different soil organic matter (SOM) fractions. Here, we show how changing land use systems have influenced soil C and N stocks, SOM physical fractions, and the origin of SOM in the Santarém region of the eastern Brazilian Amazon. Soil C and N stocks were calculated for the surface layer of 0?30 cm. Anthropogenic disturbances to the standing forest, such as selective logging and wildfires, led to significant declines in soil C and N stocks. However, in the long-term, the conversion of the Amazon forest to pasture did not have a noticeable effect on soil C and N stocks, presumably because of additional inputs from pasture grasses. However, the conversion to cropland did lead to reductions in soil C and N content. According to the physical fractionation of SOM, LUC altered SOM quality, but silt and clay remained the combined fraction that contributed the most to soil C storage. Our results emphasize the importance of implementing more sustainable forest management systems, whilst also calling further attention to the need for fire monitoring systems, helping to ensure the resilience of C and N stocks and sequestration in forest soils; thereb... Mostrar Tudo |
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Palavras-Chave: |
Manejo de solo; Mitigação; Pasture; Sequestro de carbono; Soil carbon; Uso do solo. |
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Thesagro: |
Carbono; Efeito Estufa; Floresta; Matéria orgânica; Mudança Climática; Pastagem; Solo. |
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Thesaurus Nal: |
Cropland; Tropical forests. |
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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/164678/1/Diana-2017.pdf
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Marc: |
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001 2068095
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008 2017 bl uuuu u00u1 u #d
022 $a2071-1050
024 7 $ahttp://dx.doi.org/10.3390/su9030379$2DOI
100 1 $aDURIGAN, M. R.
245 $aSoil organic matter responses to anthropogenic forest disturbance and land use change in the Eastern Brazilian Amazon.$h[electronic resource]
260 $c2017
520 $aAnthropogenic forest disturbance and land use change (LUC) in the Amazon region is the main source of greenhouse gas emissions to the atmosphere in Brazil, due to the carbon (C) and nitrogen (N) emitted from vegetation clearance. Land use conversion associated with management practices plays a key role in the distribution and origin of C in different soil organic matter (SOM) fractions. Here, we show how changing land use systems have influenced soil C and N stocks, SOM physical fractions, and the origin of SOM in the Santarém region of the eastern Brazilian Amazon. Soil C and N stocks were calculated for the surface layer of 0?30 cm. Anthropogenic disturbances to the standing forest, such as selective logging and wildfires, led to significant declines in soil C and N stocks. However, in the long-term, the conversion of the Amazon forest to pasture did not have a noticeable effect on soil C and N stocks, presumably because of additional inputs from pasture grasses. However, the conversion to cropland did lead to reductions in soil C and N content. According to the physical fractionation of SOM, LUC altered SOM quality, but silt and clay remained the combined fraction that contributed the most to soil C storage. Our results emphasize the importance of implementing more sustainable forest management systems, whilst also calling further attention to the need for fire monitoring systems, helping to ensure the resilience of C and N stocks and sequestration in forest soils; thereby contributing towards urgently needed ongoing efforts to mitigate climate change
650 $aCropland
650 $aTropical forests
650 $aCarbono
650 $aEfeito Estufa
650 $aFloresta
650 $aMatéria orgânica
650 $aMudança Climática
650 $aPastagem
650 $aSolo
653 $aManejo de solo
653 $aMitigação
653 $aPasture
653 $aSequestro de carbono
653 $aSoil carbon
653 $aUso do solo
700 1 $aCHERUBIN, M. R.
700 1 $aCAMARGO, P. B. de
700 1 $aFERREIRA, J. N.
700 1 $aBERENGUER, E.
700 1 $aGARDNER, T. A.
700 1 $aBARLOW, J.
700 1 $aDIAS, C. T. dos S.
700 1 $aSIGNOR, D.
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aCERRI, C. E. P.
773 $tSustainability$gv. 9, n. 3, Mar. 2017.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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| 5. |  | BACALHAU, A. dos S.; ALBUQUERQUE, R. P. de F.; MARINHO, J. S.; SANTOS, E. S. dos. Correlacao entre Peso ao Nascer, Idade e Peso ao Inicio da Ruminacao em Bezerros Zebu. Pesquisa Agropecuaria Brasileira, Brasilia, v.27, n.11, p.1527-1532, nov.1992| Biblioteca(s): Embrapa Gado de Leite; Embrapa Unidades Centrais. |
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| 9. | | SANTOS, G. M.; ALBUQUERQUE, R. P.; BARROS, C. F.; ANCAPICHÚN, S.; OELKERS, R.; ANDREU-HAYLES , L.; FARIA, S. M. de; DE POL-HOLZ, R.; BRANDES, A. R. da N. High-precision C-14 measurements of parenchyma-rich Hymenolobium petraeum tree species confirm bomb-peak atmospheric levels and reveal local fossil-fuel CO2 emissions in the Central Amazon. Environmental Research, v. 214, Part 3, 113994, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 9 | |
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