2021 data summary of wet nitrogen deposition at Rocky Mountain National Park
Morris K. 2024. 2021 data summary of wet nitrogen deposition at Rocky Mountain National Park. Science Report. NPS/SR—2024/109. National Park Service. Fort Collins, Colorado. https://doi.org/10.36967/2303290
The National Park Service is working with the Colorado Department of Public Health and Environment and the Environmental Protection Agency Region 8 (referred to as the Memorandum of Understanding agencies) to reduce atmospheric nitrogen deposition at Rocky Mountain National Park (RMNP) due to its detrimental effects on park ecosystems. The data summarized in this report inform these agencies, stakeholders, and the public about the current status and trends of nitrogen deposition in accordance with the RMNP Nitrogen Deposition Reduction Plan (NDRP). Analyses include assessment of progress along the glidepath and trend analyses for RMNP and other regional sites for the following time periods: long-term/period of record (>33 years), since the 2006 inception of the NDRP (currently 16 years), and short-term (the most recent 7 years). Wet N deposition in 2021 at Loch Vale in RMNP was above the glidepath. Long-term trends show that N deposition levels are stable (no trend), with ammonium concentrations increasing at most of sites and nitrate concentrations decreasing at all sites. Shorter-term trends indicate that ammonium concentrations are stable, but nitrate concentrations are decreasing at all sites that met criteria for 2006-2021.
- Type
- Published Report
- Authors
- Morris, Kristi
- Date of Issue
- 2024-04
- Publisher
- National Park Service
- DOI
- 10.36967/2303290
- Units
- NRSS , ROMO