rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Predicting the vulnerability of streams to episodic acidification and potential effects on aquatic biota in Shenandoah National Park, Virginia
  name:
    name part: Rice, Karen C.
  name:
    name part: United States
    name part: National Park Service.
  name:
    name part: Geological Survey (U.S.)
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: vau
    date issued: 2006
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: electronic
    form: remote
    extent: vii, 51 pages : digital, PDF file.
  abstract: Acidic 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.
  note: by Karen C. Rice [and others] ; prepared in cooperation with National Park Service.
  note: Title from title screen (viewed on Oct. 1, 2007).
  note: Electronic resource.
  note: Mode of access: Internet at the USGS web site. Address as of 8/18/08: http://pubs.usgs.gov/sir/2005/5259/sir05%5F5259.pdf ; current access is available via PURL.
  note: Includes bibliographical references (pages 35-37).
  subject:
    geographic code: n-us-va
  subject:
    topic: Acid deposition
    geographic: Virginia
    geographic: Shenandoah National Park
  subject:
    topic: Water quality biological assessment
    geographic: Virginia
    geographic: Shenandoah National Park
  subject:
    topic: Water
    topic: Pollution potential
    geographic: Virginia
    geographic: Shenandoah National Park
  classification: I 19.42/4-4:2005-5259
  related item:
    title info:
      title: Predicting the vulnerability of streams to episodic acidification and potential effects on aquatic biota in Shenandoah National Park, Virginia
    physical description:
      extent: vii, 51 p.
    identifier: (OCoLC)65167681
  related item:
    title info:
      title: Scientific investigations report ; 2005-5259
  identifier: https://purl.fdlp.gov/GPO/LPS100181
  record info:
    record content source: EJB
    record creation date: 071001
    record change date: 20211202185343.0
    record identifier: in00002416419