Variações de curto prazo nas emissões de CO2 do solo em diferentes sistemas de manejo do cafeeiro Short-term variations of soil CO2 emissions in coffee plantations

Soil CO 2 emissions represent an important component of carbon global cycle.However, information about short-term alterations of CO 2 fluxes in soils of tropical regions are scarce.So, the objective of this study was to evaluate such variations in coffee plantations in Latosol (Oxisol).The CO 2 emissions were not affected by environmental abiotic factors, such as temperature and soil water evaporation, but they were significantly correlated with the carbon content of microbial biomass (R=0.90,P<0.05).It happens a close relationship between root activity and soil CO 2 emission in coffee plantations.

Abstract licence: CC BY-NC

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