Journal article
Long-Term Simulation of Decreased Acid Loading on Forested Watershed
Journal of Environmental Engineering, Vol.120(2), pp.291-312
03/1994
DOI: 10.1061/(ASCE)0733-9372(1994)120:2(291)
Abstract
The response of a northeastern U.S. hardwood forest to wet and dry deposition of hydrogen ion and sulfate deposition was performed using the hydrobiogeochemical, lumped-parameter Terrestrial Aquatic Model for Ecosystems (TAME). Results of model calibration and output stream chemistry show that ion-exchange and mineral dissolution processes in the B and C horizons buffer the acidic, ambient atmospheric deposition [864‐eq‐SO4-2/(ha/yr) and 718 eq-H+/(ha/yr)] in this hydrologically tight and flashy watershed. Watershed response to a 50% decrease in total deposition of acidity over twenty years indicates that the watershed is linear with respect to sulfate (50% decrease in mass outflow) but less responsive with respect to acid neutralizing capacity, ANC (11% increase in stream volume-weighted average ANC concentrations). Only moderate improvements in ANC can be expected from emission controls and decreased sulfate deposition.
Details
- Title: Subtitle
- Long-Term Simulation of Decreased Acid Loading on Forested Watershed
- Creators
- Todd H Rees - Engr., Golder Associates, 305 Fellowship Rd., Mt. Laurel, NJ 08054Jerald L Schnoor - Prof., Dept. of Civ. and Envir. Engrg., Univ. of Iowa, Iowa City, IA
- Resource Type
- Journal article
- Publication Details
- Journal of Environmental Engineering, Vol.120(2), pp.291-312
- Publisher
- American Society of Civil Engineers
- DOI
- 10.1061/(ASCE)0733-9372(1994)120:2(291)
- ISSN
- 0733-9372
- eISSN
- 1943-7870
- Language
- English
- Date published
- 03/1994
- Academic Unit
- Occupational and Environmental Health; Civil and Environmental Engineering
- Record Identifier
- 9983997980702771
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