Developing critical loads of nitrate and sulfate deposition to watersheds of the Great Smoky Mountains National Park, United States.
Zhou Q, Driscoll CT, Moore SE, Kulp MA, Renfro JR, Schwartz JS, Cai M. 2014. Developing critical loads of nitrate and sulfate deposition to watersheds of the Great Smoky Mountains National Park, United States.. Natural Resource Technical Report. NPS/GRSM/NRTR—2014/896. National Park Service. Fort Collins, Colorado
We evaluated the application of CLs/DCLs of nitrate and sulfate deposition for 12 watersheds in Great Smoky Mountains National Park (GRSM), USA using the hydrochemical model, PnET-BGC. Two of the streams studied are listed by the state of Tennessee as impaired. We reconstructed historical meteorological, atmospheric deposition and land disturbance data for study watersheds for the period 1850 to present for model hindcasts. The model was run under a range of future scenarios from 2008 to 2200 of decreases in sulfate, nitrate and ammonium, and combinations of sulfate and nitrate deposition.
- Type
- Published Report
- Authors
- Zhou, Qingtao; Driscoll, Charles; Moore, Stephen; Kulp, Matt; Renfro, James; Schwartz, John; Cai, Meijun
- Date of Issue
- 2014-08
- Publisher
- National Park Service
- Units
- APHN , GRSM , NRSS
- Keywords
- Ammonium, ANC, critical loads, Deposition, Great Smoky Mountains, GRSM, Nitrate, pH, PnET-BGC, Sulfate
- Subjects
- Ecological Framework: Air and Climate | Air Quality | Wet and Dry Deposition , Ecological Framework: Air and Climate | Air Quality | Air Contaminants , Ecological Framework: Geology and Soils | Soil Quality | Soil Function and Dynamics , Ecological Framework: Water | Hydrology | Surface Water Dynamics , Ecological Framework: Water | Water Quality | Water Chemistry , Ecological Framework: Human Use | Non-point Source Human Effects | Non-point Source Human Effects , Ecological Framework: Landscapes | Nutrient Dynamics | Nutrient Dynamics