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101 0 $aeng
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181   $ctxt$2rdacontent
182   $cc$2rdamedia
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200 00$aPredicting the vulnerability of streams to episodic acidification and potential effects on aquatic biota in Shenandoah National Park, Virginia$b[electronic resource] /$fby Karen C. Rice ... [and others] ; prepared in cooperation with National Park Service
210  1$aReston, Va. :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2006.
215   $avii, 51 pages $cdigital, PDF file
225 1 $aScientific investigations report ;$v2005-5259
300   $aTitle from title screen (viewed on Oct. 1, 2007).
320   $aIncludes bibliographical references (pages 35-37).
330   $aAcidic deposition is one of the most serious environmental problems affecting Shenandoah National Park in north-central Virginia. The park is the third most contaminated park in the National Park System because of the deposition of acid rain. Acid rain affects headwater streams in the park by temporarily reducing the acid-neutralizing capacity (ANC) of the water, a process termed episodic acidification. In turn, the increase in acidic components in streamwater can have deleterious effects on the aquatic biota. Although acidic deposition to the park is relatively uniform across its land area, the water-quality response of streamwater during rain events varies substantially. This response is a function of the underlying geology and topographic attributes of watersheds. Geologic and topographic data for the park's 231 watersheds are readily available; however, long-term (years and tens of years) measurements of streamwater ANC and accompanying discharge are not and would be prohibitively expensive to collect. Modeled predictions of the vulnerability of the park's streams to episodic acidification are an alternative to long-term water-quality monitoring. These predictions can aid park officials in making management decisions.
606   $aAcid deposition$zVirginia$zShenandoah National Park
606   $aWater quality biological assessment$zVirginia$zShenandoah National Park
606   $aWater$xPollution potential$zVirginia$zShenandoah National Park
615  0$aAcid deposition
615  0$aWater quality biological assessment
615  0$aWater$xPollution potential
701   $aRice$b Karen C$01381239
712 02$aUnited States.$bNational Park Service.
712 02$aGeological Survey (U.S.)
801  0$bEJB
801  1$bEJB
801  2$bGPO
906   $aBOOK
912   $a9910697318603321
996   $aPredicting the vulnerability of streams to episodic acidification and potential effects on aquatic biota in Shenandoah National Park, Virginia$93446192
997   $aUNINA