Notice of RetractionSuburban-Rural Contrasts of Carbon Dioxide Fluxes in Beijing

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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Turbulent fluxes of carbon dioxide have been measured for at a suburban and a rural sites in Beijing city simultaneously during the period from June to December in 2009. The results show that Suburban play a role in carbon source with fluxes being always positive thought a day both in summer and in winter. In addition, daytime, nighttime and daily mean values of CO₂ fluxes were all greater in winter than those in summer influenced by vegetation activity in summer and domestic heating in winter. Fluxes at the rural areas exhibited pronounced biogenic features with negative daytime fluxes and constant release of CO₂ due to respiration at night in summer, and always close to zero in winter. More CO₂ fluxes measurements to conduct at various urban land-use types are required in the further.