Global Environmental Change and Soil Processes

One area of our research is about the impact of global environmental changes on terrestrial ecosystems, especially the change of CO2 concentration in the atmosphere. We have been investigating the effects of elevated CO2 on belowground processes, including soil microbial activities/biomass, rhizosphere carbon fluxes, nutrient cycling, and soil carbon sequestration both at Oak Ridge FACE (Free-air CO2 Enrichment) site and at the EcoCELLs facility of the Desert Research Institute. Currently, we are investigating sensitivities of rhizosphere CO2 efflux to global change factors (e.g., elevated CO2, soil warming, nitrogen deposition, etc.) in an environmental controlled greenhouse and a plant growth chamber.

Relevant publications

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