Postdoctoral Research Associate position available in the nitrogen biogeochemistry of agro-ecosystems. Drs. Mark David and Evan DeLucia are seeking a postdoctoral research associate to investigate the environmental impacts of bioenergy crop production, focusing on nitrogen biogeochemistry. Large-scale bioenergy crop trials (miscanthus, switchgrass, restored prairie, and corn/soybean) were initiated in 2008 as part of the Energy Biosciences Institute to evaluate all environmental impacts of production. Research will include components of the nitrogen cycle with a focus on soil organic matter and changes in soil organic N pools and transformations. The successful candidate will collaborate with others on the research team (Environmental Impact and Sustainability of Feedstock Production) evaluating carbon and water fluxes. Qualifications include: a Ph.D. in biogeochemistry, ecology, soil science, or related field; demonstrated research abilities in biogeochemistry desired, including soil and water measurement techniques, stable isotopes, and soil organic matter characterization techniques; strong aptitude for conducting independent research and publishing results. Start date: about September 16, 2014. To apply, e-mail a cover letter, curriculum vitae, and the contact information (names, addresses, phone numbers, and e-mail addresses) of three academic references to Melinda Laborg, Institute of Genomic Biology, University of Illinois; firstname.lastname@example.org, (217) 333-0860).