Title:	Short-term effect of Eucalyptus plantations on soil microbial communities and soil-atmosphere methane and nitrous oxide exchange.
Authors:	CUER, C. A. RODRIGUES, R. de A. R. BALIEIRO, F. de C. JESUS, J. SILVA, E. P. ALVES, B. J. R. RACHID, C. T. C. C.
Affiliation:	UFRJ; RENATO DE ARAGAO RIBEIRO RODRIGUES, CNPS; FABIANO DE CARVALHO BALIEIRO, CNPS; UFF; UFRRJ; BRUNO JOSE RODRIGUES ALVES, CNPAB; UFRJ.
Date Issued:	2018
Citation:	Scientific Reports, v. 8, article 15133, 2018.
Description:	Soil greenhouse gas (GHG) emissions are a signifcant environmental problem resulting from microbially-mediated nitrogen (N) and carbon (C) cycling. This study aimed to investigate the impact of Eucalyptus plantations on the structure and function of a soil microbial community, and how resulting alterations may be linked to GHG fuxes. We sampled and monitored two adjacent Eucalyptus plantations?a recently logged site that harbored new seedlings and an adult plantation and compared them to a site hosting native vegetation. We used 16S rRNA gene sequencing and qPCR amplifcations of key nitrogen and methane cycle genes to characterize microbial structure and functional gene abundance and compared our data with soil parameters and GHG fuxes. Both microbial community attributes were signifcantly afected by land use and logging of Eucalyptus plantations. The genes nosZ and archaeal amoA were signifcantly more abundant in native forest than in either young or old Eucalyptus plantations. Statistical analyses suggest that land use type has a greater impact on microbial community structure and functional gene abundance than Eucalyptus rotation. There was no correlation between GHG fuxes and shifts in microbial community, suggesting that microbial community structure and functional gene abundance are not the main drivers of GHG fuxes in this system.
Keywords:	Emissions of greenhouse gases Soil microbial processes Atlantic Forest
ISSN:	2045-2322
DOI:	:10.1038/s41598-018-33594-6
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPAB)