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US Forest Service Research & Development
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  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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Sherri Johnson

Research Ecologist
Corvallis, OR
Phone: 541-758-7771
Contact Sherri Johnson


Featured Publications & Products

Publications & Products

Research Highlights

HighlightTitleYear


PNW-2013-105
Long-term Nitrogen Trends Differ in Pristine Forested Streams

Stream nitrate has declined in the Pacific Northwest, in the Northeast, and in Puerto Rico, but it has increased in the Mountain West and the So ...

2013


Last updated on : 06/27/2014