Biogeochemistry Laboratory





Lab Group





University of Illinois




Mark B. David

Mark David taught and conducted research on a range of environmental topics at the University of Illinois from 1985 through his retirement in the summer of 2016. He is now Professor Emeritus. He received his Ph.D. from the State University of New York, College of Environmental Science and Forestry, M.S. from the University of Maine, and B.S. from Penn State University. (pdf of cv)


Funk paper from 2009 (autobiography)

Google scholar


Lowell Gentry

Corey Mitchell




Lowell Gentry is a Principal Research Specialist in Agriculture leading a wide range of research projects in east-central Illinois, and is now PI on all projects in the laboratory, having taken over all leadership from Mark David who retired. He works closely with the farmers and landowners where our projects are conducted. He received his B.S. (EEE) and M.S. (Agronomy) from the University of Illinois at Urbana-Champaign.

Google scholar







Corey Mitchell is a Senior Research Specialist in Agriculture and conducts field and laboratory work for all of our projects. He supervises the laboratory and undergraduate assistants. He received his B.S. in Agricultural Engineering from the University of Illinois at Urbana-Champaign.

Google scholar


John Green


John Green is a Research Specialist in Agriculture who conducts field sampling and data analysis for our projects. John received his B.S. from Michigan State University.



Recent and Not So Recent Alumni of Laboratory


Last Updated November 14, 2017