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EPISODIC ACIDIFICATION PROJECT - NORTHERN APPALACHIAN PLATEAU: SITE DESCRIPTION AND METHODOLOGY
Citation:
DeWalle, D., B. Swistock, C. Dow, W. Sharpe, AND R. Carline. EPISODIC ACIDIFICATION PROJECT - NORTHERN APPALACHIAN PLATEAU: SITE DESCRIPTION AND METHODOLOGY. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-93/023.
Description:
Study areas and methods are described for research on acidic streamflow episodes in five forest stream/catchment systems in the northern Appalachian Plateau region of Pennsylvania. esearch was conducted from October 1988 to April 1990 and involved both hydrochemical and biological studies. ydrochemical monitoring included measurements of stream discharge; in situ stream pH, conductivity, and temperature; air temperature, precipitation amounts and intensity, snowpack water equivalents, and snowpack melt rates. Intensive stream sampling during selected events using computer-controlled automatic samplers was used to document episodic stream chemistry. tream samples were analyzed for a complete suite of common cations and anions along with acid neutralizing content, DOC, total monomeric aluminum, and organic monomeric aluminum. amples of soil, stream and throughfall water were also collected for study of hydrologic flow paths on the catchments using natural isotopes. iological impacts of acidic streamflow episodes on native brook trout and sculpin were assessed using electrofishing, in-situ bioassays, radiotelemetry, and spawning surveys. enthic macroinvertebrate surveys were also conducted seasonally. igorous quality assurance/quality control program was established for all measurements during the study, especially for water chemistry. he resulting data sets will be of use to other researchers to whom this report is directed.