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Use of GIS to Evaluate Sensitivity of I&M Parks to Effects from Atmospheric Nitrogen Deposition . T.J. Sullivan T.C. McDonnell G.T. McPherson E. Porter S.D. Mackey D.L. Moore. George Wright Society Meeting March 15 th – 17 th , 2011 - New Orleans. Goal.
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Use of GIS to EvaluateSensitivity of I&M Parks to Effects from Atmospheric Nitrogen Deposition T.J. Sullivan T.C. McDonnell G.T. McPherson E. Porter S.D. Mackey D.L. Moore George Wright Society Meeting March 15th – 17th, 2011 - New Orleans
Goal • Construct preliminary risk assessment of nutrient enrichment impacts from air pollution sources of N to I&M parks. Approach • Nitrogen Pollutant Exposure • Ecosystem Sensitivity to Nutrient N Enrichment • Park Protection Mandates
Scope • Network Assessment (n=32) • Park Assessment (n=271) Caveats • Preliminary assessment • Imperfect knowledge of pollution exposure and ecosystem sensitivity • Limited availability of national-scale spatial data
Acid Screening Study Pollutant Exposure - S, N Ecosystem Sensitivity • Known geologic sensitivity • High elevation lakes and streams • Low order streams • Sensitive vegetation types • Watershed slope Park Protection - Wilderness, Class I
Next Step AQRV Assessment