Research focuses on how the coupled interactions of waters, soils, and plants drive the fluxes and microbial transformations of carbon, nutrients, critical materials, and redox-active elements such as Fe and S. Field site activities focus on the Cottonwood Lake Study Area (CLSA) within the Prairie Pothole Region (PPR), the Old Woman Creek field site near Lake Erie, and the Smithsonian Environmental Research Center at Chesapeake Bay. Applicants must have strong communication skills (written and oral) and have the ability to work within an integrated multidisciplinary scientific research group and with scientists from a variety of scientific backgrounds, such as microbiology, chemistry, x-ray physics, hydrology, geochemistry, soil science, and computer modeling.