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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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Mark E. Fenn

Research Plant Pathologist
4955 Canyon Crest Drive
Riverside, CA 92507
Phone: 951-680-1565


Research Interests

My primary research interests are evaluating the long term effects of atmospheric nitrogen (N) deposition on sensitive biotic communities, forest health (including pests and pathogens), soil chemistry and biology, nutrient cycling processes, and water quality. I am interested in multiple stress and multiple pollutant interactions as they impinge on forest sustainability, and water quality and quantity of chronic N deposition.

Education

  • University of California, Ph.D. Plant Pathology, 1986
  • University of Arizona, B.Sc. Plant Pathology, 1981

Featured Publications & Products

Publications & Products

Research Highlights

HighlightTitleYear


PSW-2012-03
Air-Pollution Thresholds Protect Ecosystems

Research benefits air-quality specialists, land managers, scientists, and policymakers

2012


PSW-2010-006
Development of Critical Loads and Critical Load Exceedance Maps for Protecting California Ecosystems from Atmospheric Nitrogen Deposition

More than 50,000 km2 of the land area in California receive atmospheric deposition inputs of at least 10 kg N/ha/yr. Many ecosystems are negativ ...

2010


PSW-2012-02
Industrial Air Pollution May Have Ecological Consequences

Elevated concentrations of ammonia can negatively impact lichen communities and elevated levels of nitrogen and sulfur deposition can potentiall ...

2012


Last updated on : 10/01/2014