Soil organic matter responses to anthropogenic forest disturbance and land use change in the Eastern Brazilian Amazon.

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dc.contributorMARIANA REGINA DURIGAN, ESALQ/USP
dc.contributorMAURÍCIO ROBERTO CHERUBIN, CENA/USP
dc.contributorPLÍNIO BARBOSA DE CAMARGO, CENA/USP
dc.contributorJOICE NUNES FERREIRA, CPATU
dc.contributorERIKA BERENGUER, Lancaster University / University of Oxford
dc.contributorTOBY ALAN GARDNER, International Institute for Sustainability / Stockholm Environment Institute
dc.contributorJOS BARLOW, Lancaster University / MPEG
dc.contributorCARLOS TADEU DOS SANTOS DIAS, ESALQ/USP
dc.contributorDIANA SIGNOR DEON, CPATSA
dc.contributorRAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU
dc.contributorCARLOS EDUARDO PELLEGRINO CERRI, ESALQ/USP.
dc.creatorDURIGAN, M. R.
dc.creatorCHERUBIN, M. R.
dc.creatorCAMARGO, P. B. de
dc.creatorFERREIRA, J. N.
dc.creatorBERENGUER, E.
dc.creatorGARDNER, T. A.
dc.creatorBARLOW, J.
dc.creatorDIAS, C. T. dos S.
dc.creatorSIGNOR, D.
dc.creatorOLIVEIRA JUNIOR, R. C. de
dc.creatorCERRI, C. E. P.
dc.date2018-01-03T23:18:12Z
dc.date2018-01-03T23:18:12Z
dc.date2017-04-04
dc.date2017
dc.date2018-01-03T23:18:12Z
dc.date.accessioned2026-07-07T05:48:13Z
dc.descriptionAnthropogenic 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
dc.identifierSustainability, v. 9, n. 3, Mar. 2017.
dc.identifier2071-1050
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1068095
dc.identifierhttp://dx.doi.org/10.3390/su9030379
dc.identifier.urihttp://hdl.handle.net/123456789/500231
dc.languageeng
dc.rightsopenAccess
dc.subjectManejo de solo
dc.subjectUso do solo
dc.subjectSequestro de carbono
dc.subjectMitigação
dc.subjectPasture
dc.subjectSoil carbon
dc.subjectFloresta
dc.subjectPastagem
dc.subjectSolo
dc.subjectMatéria orgânica
dc.subjectCarbono
dc.subjectEfeito Estufa
dc.subjectMudança Climática
dc.subjectTropical forests
dc.subjectCropland
dc.titleSoil organic matter responses to anthropogenic forest disturbance and land use change in the Eastern Brazilian Amazon.
dc.typeArtigo de periódico

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