We seek to unravel the roles of climate and land management in controlling the deviation of soil CO2 efflux from soil respiration rates by tracking both organic and inorganic C in solid, liquid, and aqueous phases in a grassland agroecosystem of the Southern Great Plains. Results from this work will identify management strategies that maximize soil C storage, forage quality, and soil health under climate and land use scenarios expected to become more likely in the Southern Great Plains.  
The fieldwork component of this project is located at Kessler Atmospheric and Ecological Field Station in Washington, Oklahoma and centers on the installation of rainfall exclusion/addition shelters that modulate mean annual precipitation that falls on the soil plots.