Forest and Woodland Ecosystems Science Program
Contact Information
  • Forest and Woodland Ecosystems Science Program
  • Southwest Forest Science Complex
  • 2500 South Pine Knoll
  • Flagstaff, AZ 86001-6381
  • Alison Hill 928-556-2105
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Soil Scientist

Steven T. Overby

Soil Scientist
2500 South Pine Knoll Drive
Flagstaff, AZ 86001
Phone: 928-556-2184
Fax: 928-556-2130
Contact Steven T. Overby

Current Research

My current research interests involve response of microbial community to temperature changes along an latitudinal gradient in alpine and subalpine ecosystems of the Southern Rocky Mountains and Sky Islands of the Southwest. I am also studying response of microbial community to fuels/fire risk reduction treatments and wildfire, and the associated processes that are microbially mediated such as N mineralization, decomposition, and carbon sequestration.

Research Interests

My research interests include microbial community dynamics, nutrient cycling in soils, and disturbance affects on nutrient cycling.

Past Research

Soil nutrient and microbial responses to tree densities as modified by mechanical thinning and/or prescribed fire in ponderosa pine and woodland ecosystems.

Why This Research is Important

Alpine and high altitude spruce ecosystems may experience shifts due to temperature increases with global climate change earlier than other ecosystems.


  • Northern Arizona University, Flagstaff, Ph.D. Ecosystem Science, School of Forestry, 2009
  • Arizona State University, Tempe, MS Environmental Sciences, 1994
  • Colorado State University, Fort Collins, BS Range Science, 1983

Professional Organizations

  • Soil Ecology Society, Member (2002 - Current)
  • Ecological Society of America, Member (2000 - Current)
  • Soil Science Society of America, Member (1987 - Current)

Featured Publications & Products

Publications & Products

Last updated on : 10/02/2014