Título:	Climate-smart agriculture and soil C sequestration in Brazilian Cerrado: a systematic review.
Autoria:	OLIVEIRA, D. M. da S. TAVARES. R. L. M. LOSS, A. MADARI, B. E. CERRI, C. E. P. ALVES, B. J. R. PEREIRA, M. G. CHERUBIN, M. R.
Afiliação:	DENER MÁRCIO DA SILVA OLIVEIRA, UFV; ROSE LUIZA MORAES TAVARES, UNIVERSIDADE DE RIO VERDE; ARCÂNGELO LOSS, UFSC; BEATA EMOKE MADARI, CNPAF; CARLOS EDUARDO PELLEGRINO CERRI, UNESP; BRUNO JOSE RODRIGUES ALVES, CNPAB; MARCOS GERVASIO PEREIRA, UFRRJ; MAURÍCIO ROBERTO CHERUBIN, UNESP.
Ano de publicação:	2023
Referência:	Revista Brasileira de Ciência do Solo, v. 47, Special Issue, e0220055, 2023.
Conteúdo:	Climate-smart agriculture (CSA) practices, mainly no-tillage (NT), cover cropping (CC), soil fertilization with organic amendments (OA), and crop-livestock (CL) and crop-livestock-forestry (CLF) systems, has been widely adopted in areas from Brazilian Cerrado. The CSA may partly offset former soil C losses and contribute to climate change mitigation. However, contradictory findings brought uncertainties about the effect of CSA on soil C. Here, by a systematic review of 87 papers and using 621 data pairs, we provided a pervasive biome-scale analysis of soil C stock changes associated with the adoption of CSA across Brazilian Cerrado. All CSA practices evaluated showed average positive rates of C stock change, indicating a general tendency of soil C accretion after its adoption. In areas under NT, CC and CLF, greater rates were estimated for the deeper soil profile evaluated (0.00-1.00 m) (1.24 ± 0.85, 0.54 ± 0.54 and 1.00 ± 1.47 Mg ha?1 yr?1, respectively), while OA and CL showed more soil C accretion when the assessment was limited down to 0.10 m depth (0.82 ± 0.60 and 0.59 ± 0.66 Mg ha?1 yr?1, respectively). Unfortunately, the lack of basic information precluded any attempt to statically compare our estimations. In this sense, we must be cautious in stating that soil C sequestration occurs at those rates after the adoption of CSA practices. Despite these limitations, the results clearly show that the diversification and intensification of agricultural areas in the Cerrado by the adoption of CSA is a promising pathway to increase soil C stocks, and consequently, contribute to climate change mitigation and adaptation. Finally, our findings emphasize the importance of efforts that stimulate farmers to adopt these practices on large scale, such as Brazil?s Low-Carbon Agriculture Plan, besides providing sound empirical evidence about the role of soil C sequestration in Brazil achieving its Nationally Determined Contributions commitments.
Thesagro:	Cerrado Plantio Direto
NAL Thesaurus:	Soil organic matter No-tillage Integrated agricultural systems Climate change
Palavras-chave:	Soil health
ISSN:	1806-9657
Digital Object Identifier:	https://doi.org/10.36783/18069657rbcs20220055
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPAF)