Groffman’s research focuses on terrestrial biogeochemistry with a focus on nitrogen dynamics, especially gases. Projects have ranged across multiple scales from microbial/molecular scale analyses to field/ecosystem scale measurement of fluxes using geochemical and isotope approaches, to landscape and regional scale work using remote sensing, geographic information systems and simulation models. Much of his research is focused at two National Science Foundation funded Long Term Ecological Research (LTER) sites; Hubbard Brook, New Hampshire and Baltimore, MD.


  • My interests are in how microbial processes impact gas exchange - particularly nitrogen - between the soil and air. My work encompasses rural and urban ecosystems
  • and is primarily centered at two of the National Science Foundation’s Long Term Ecological Research sites located in Hubbard Brook
  • New Hampshire and Baltimore
  • Maryland.


  • Ecology, 1984

    University of Georgia

  • N/A, N/A


  • BA Environmental Science, 1980

    University of Virgiania