Our Earth's critical zone is the heterogeneous, near surface environment in which complex interactions involving rock, soil, water, air, and living organisms regulate the natural habitat and determine the availability of life-sustaining resources. A healthy critical zone supports ecosystems that produce the food we eat, natural pollution control, and natural resources upon which our economy depends.

Our faculty are experts in:

  • biogeochemistry and pedology
  • geomicrobiology
  • subsurface hydrology and soil physics

Click on the profiles to learn more about who we are and what we research in critical zone science.


Janick Artiola

Janick F. Artiola

Associate Professor (retired)

Associate Research Scientist (retired)


 

  • I focus on geomicrobiology in our work on critical zone science.
  • Explore my other areas of research:




  • I focus on biogeochemistry and pedology in our work on critical zone science.
  • Explore my other areas of research:


Karletta Chief

Associate Professor

Extension Specialist


Jon Chorover

Jon Chorover

Department Head

Professor

Arizona Lab for Emerging Contaminants (ALEC)


Joan Curry

Joan Curry

Professor

Associate Department Head

Cardon Academy of Teaching Excellence Fellow

  • I focus on biogeochemistry and pedology in our work on critical zone science.
  • Explore my other areas of research:


Katerina Dontsova

Katerina Dontsova

Associate Professor

Associate Research Professor, Biosphere 2


Martha C. Hawes

Professor (retired)

Professor, Plant Sciences (retired)

  • I focus on biogeochemistry and pedology in our work on critical zone science.

Raina M. Maier

Raina M. Maier

Professor

Director, UA Superfund Research Program


Julie Neilson

Associate Research Professor

Director, Maier Lab

Director, Center for Environmentally Sustainable Mining

  • I focus on geomicrobiology in our work on critical zone science.
  • Explore my other areas of research:


Ian Pepper

Ian L. Pepper

Professor

Director, Water & Energy Sustainable Technology (WEST) Center



Marcel Schaap

Marcel G. Schaap

Professor

Graduate Program Head


  • I focus on geomicrobiology in our work on critical zone science.
  • Explore my other areas of research:



James Walworth

James "Jim" Walworth

Professor

Extension Specialist

(retired) Associate Department Head