Nitrogen saturation in the Rocky Mountains: Linking emissions, deposition, and ecosystem effects using stable isotopes of nitrogen compounds
January 1, 2007
Elevated levels of atmospheric N deposition are affecting terrestrial and aquatic ecosystems at high elevations in Rocky Mountain National Park and adjacent areas of the Front Range of Colorado. Federal and state agencies are now working together to develop cost-effective means for reducing atmospheric N deposition. A discussion on N saturation covers the need for better understanding of N emission source areas and source types that contribute to N deposition in the Rocky Mountains Front Range of Colorado; reductions in NO emissions that resulted from Clean Air Act Amendments, which caused NO3 deposition to decrease between 1984 and 2003; factors contributing to N deposition, e.g., rapid population growth and energy development; origins of NO3, e.g., as NO emissions from fossil fuel combustion, including stationary sources (e.g. emission from coal combustion in electric generating units), and mobile sources (vehicle emissions); disperse stationary sources from energy resource development, e.g., natural gas production; and the importance of incorporating local source characterization and finer spatial and temporal sampling into future studies, which could provide additional insight into N deposition source attribution. This is an abstract of a paper presented at the 100th Annual Conference and Exhibition of the Air and Waste Management Association (Pittsburgh, PA 6/26-29/2007).
Citation Information
Publication Year | 2007 |
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Title | Nitrogen saturation in the Rocky Mountains: Linking emissions, deposition, and ecosystem effects using stable isotopes of nitrogen compounds |
Authors | K. Campbell, L. Nanus, J.K. Böhlke, K. Harlin, J. Collett |
Publication Type | Conference Paper |
Publication Subtype | Conference Paper |
Index ID | 70031627 |
Record Source | USGS Publications Warehouse |
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John Karl Bohlke, PhD
Emeritus Scientist, Earth Systems Processes Division
Emeritus Scientist, Earth Systems Processes Division
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Related
John Karl Bohlke, PhD
Emeritus Scientist, Earth Systems Processes Division
Emeritus Scientist, Earth Systems Processes Division
Emeritus Scientist
Emeritus Scientist
Email
Phone