<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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    <marc:controlfield tag="001">9.867687</marc:controlfield>
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    <marc:controlfield tag="008">190129s1986    onc     ob   f000 0 eng d</marc:controlfield>
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      <marc:subfield code="e">rda</marc:subfield>
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      <marc:subfield code="a">eng</marc:subfield>
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      <marc:subfield code="a">En13-5/86-206E-PDF</marc:subfield>
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    <marc:datafield tag="100" ind1="1" ind2=" ">
      <marc:subfield code="a">Thompson, Mary E., </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="245" ind1="1" ind2="4">
      <marc:subfield code="a">The cation denudation rate model applied to data for Harp Lake watershed no. 4, 1977-1982 / </marc:subfield>
      <marc:subfield code="c">by Mary E. Thompson.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Burlington, Ontario : </marc:subfield>
      <marc:subfield code="b">Aquatic Physics &amp; Systems Division, National Water Research Institute, Canada Centre for Inland Waters, </marc:subfield>
      <marc:subfield code="c">1986.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">1 online resource (7 pages, 1 unnumbered page).</marc:subfield>
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      <marc:subfield code="a">text</marc:subfield>
      <marc:subfield code="b">txt</marc:subfield>
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      <marc:subfield code="a">computer</marc:subfield>
      <marc:subfield code="b">c</marc:subfield>
      <marc:subfield code="2">rdamedia</marc:subfield>
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    <marc:datafield tag="338" ind1=" " ind2=" ">
      <marc:subfield code="a">online resource</marc:subfield>
      <marc:subfield code="b">cr</marc:subfield>
      <marc:subfield code="2">rdacarrier</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
      <marc:subfield code="v">86-206</marc:subfield>
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    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Cover title.</marc:subfield>
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      <marc:subfield code="a">"Control no. AP260."</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"November 1986."</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"Validation of the CDR (cation denudation rate) model in as many different kinds of waters and areas of Canada is desirable because of the uses to which the model has been put - first, in deciding upon a target load of sulfate deposition, and, second, in predicting that stream water quality will improve readily, once sulfate deposition is decreased. This report shows that the CDR model works well, using six years of data for Harp Lake Watershed No. 4, near Huntsville, Ontario"--Management perspective.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="546" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes management perspective and abstract in French.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environment Canada.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="2" ind2=" ">
      <marc:subfield code="a">National Water Research Institute (Canada)</marc:subfield>
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      <marc:subfield code="a">NWRI contribution ;</marc:subfield>
      <marc:subfield code="v">86-206.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.844121</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">635 KB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/eccc/En13-5-86-206-eng.pdf</marc:subfield>
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