Dr. Qianlai Zhuang is a Professor in the Department of Earth, Atmospheric, and Planetary Sciences and the Department of Agronomy at Purdue University. His research focuses on the interactions among the atmosphere, biosphere, and human dimension in the context of climate change, chemical element cycles, and policy-making. One of his major research activities is on carbon exchanges between terrestrial ecosystems and the atmosphere by investigating how changes of climate, soil physics (e.g., permafrost dynamics and soil hydrology), atmospheric chemicals (e.g., CO2 and O3), land-use and land-cover (e.g., fire disturbances), affect carbon assimilation and decomposition with both process-based biogeochemical and atmospheric inversion modeling approaches. His second major research activity is on modeling CH4 exchanges between the atmosphere and biosphere. His third major research activity is on analyzing consequences of air pollutants for ecosystem goods and services and the economy. In the Ecosystems and Biogeochemical Dynamics Laboratory at Purdue, his research group uses earth system models combining laboratory and field observations and remotely-sensed data to study dynamics of structure and functioning of global natural and managed terrestrial ecosystems, dynamics of major greenhouse gases cycling including CO2, CH4, and N2O, and feedbacks of ecosystems and biogeochemical dynamics to the climate and society.