US Forest Service Research & Development
Contact Information
  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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Connie Harrington

Research Forester
3625 93rd Ave. SW
United States

Phone: 360-753-7670
Contact Connie Harrington

Current Research

I'm currently exploring the responses of multiple species and multiple genotypes within species to their environment, which includes seed germination, flowering, and tree growth. I am also developing models that could be used to predict plant responses to the changing climate. In addition, I am studying the biology and silviculture of neglected species of hardwoods, cedars, and pine; a range of silvicultural techniques, such a variable density thinning; and factors, such as bole or root damage, that may affect tree survival and growth.

Research Interests

Understanding biological systems (within plants as well as within ecosystems) and using this information to inform management decisions. Long-term interest in roots and site productivity.

Past Research

Models to predict spring budburst, management of Oregon white oak (threatened system), management of alder and poplar (biomass production), silviculture of cedars, western white pine, and true firs. Effects of variable density thinning on tree growth and understory response. Also, effects of practices on tree growth and short- and long-term site productivity.

Why This Research is Important

My research provides information to managers about species (and genotype) responses to environment and silvicultural practices through scientific publications describing the results from studies, general publications, and models to predict tree or stand responses. These models are important because it is not possible to collect information on the possible treatments or conditions that might occur on specific sites; thus, responses are modeled or predicted. The information I develop on Oregon white oak communities and package for small private landowners is important because most of the white oak is on private land, and there is a narrow biological time window to implement the treatments required for restoring these systems.


  • University of Washington, Ph.D. Tree Physiology and Soils 1983
  • SUNY College of Environmental Science and Forestry, M.S. Silviculture 1975
  • SUNY College of Environmental Science and Forestry, B.A. Forest Botany 1973

Featured Publications & Products


Research Highlights


Oregon white oak regeneration enhanced through proper seed and seedling management

Planting Native Oak in the Pacific Northwest is the first comprehensive study of Oregon white oak planting technique. Without post-planting man ...


Tree Adaptation to Future Climates Involves Multiple Aspects

Genetic variation in growth phenology is a potentially important resource for mitigating some of the effects of climate change. Variation in dia ...


Last updated on : 10/25/2016