Please use this identifier to cite or link to this item: http://repositorio.ufpa.br:8080/jspui/handle/2011/10780
Title: Variação temporal do efluxo de CO2do solo em sistemas agroflorestais com palma de óleo na Amazônia Oriental
Other Titles: Temporal variation of soil CO2 efflux in oil palm-based agroforestry systems in eastern Amazon
metadata.dc.creator: SILVA, Carolina Melo da
VASCONCELOS, Steel Silva
OLIVEIRA JUNIOR, Moisés Cordeiro Mourão de
KATO, Osvaldo Ryohei
SILVA JUNIOR, Alberto Cruz da
CASTELLANI, Débora Cristina
Keywords: Efeito estufa
Biomassa microbiana do solo
Respiração do solo
Umidade do solo
Temperatura do solo
Global warming
Soil microbial biomass
Soil moisture
Soil respiration
Soil temperature
Issue Date: Mar-2016
Publisher: Instituto Nacional de Pesquisas da Amazônia
Citation: SILVA, Carolina Melo da et al. Variação temporal do efluxo de CO2 do solo em sistemas agroflorestais com palma de óleo na Amazônia Oriental. Acta Amazonica, Manaus, v. 46, n. 1, p. 1-12, jan./mar. 2016. DOI: http://dx.doi.org/10.1590/1809-4392201500193. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/10780. Acesso em:.
Abstract: The soil carbon dioxide (CO2) efflux dynamics and its controlling factors of Amazonian agroforestry systems are poorly understood. The objective of this study was to evaluate the temporal variation of soil CO2 efflux in oil palm-based agroforestry systems and the relation between efflux and biotic (microbial and total soil carbon, microbial respiration, fine roots, individual components of agroforestry systems (AFS)) and abiotic factors (soil moisture and temperature). The measurements were taken during the less rainy (December 2010) and rainy (May 2011) periods. The soil CO2 efflux was highest during the rainy season, probably due to increased microbial activity influenced by climatic factors coupled with biotic factors. The soil CO2 efflux correlated positively with soil moisture and microbial biomass carbon and negatively with soil temperature and metabolic quotient, but these correlations were weak. The soil CO2 efflux was sensitive to the type of agroforestry system and to rainfall seasonality.
URI: http://repositorio.ufpa.br/jspui/handle/2011/10780
ISSN: 1809-4392
Appears in Collections:Artigos Científicos - IG

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