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This article in SSSAJ

  1. Vol. 43 No. 2, p. 417-420
    Received: Sept 19, 1978
    Accepted: Nov 20, 1978

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Seasonal Weather Regimes Influence Interpretation of Pinus resinosa Foliar Analysis1

  1. Donald H. Bickelhaupt,
  2. Russell Lea,
  3. Don D. Tarbet and
  4. Albert L. Leaf2



A technique is described for quantifying the influence of seasonal precipitation and atmospheric temperature patterns (using degree-day summations) on annual foliar analysis data. The results of this are used to adjust for the influence of climatic variation on foliar data so as to obtain a better estimate of species and soils relations. For Pinus resinosa, a species with determinate growth characteristics, precipitation and degree-day summations over a portion of the previous snow-free season plus the same measures for the current snow-free season may be used to adjust annual foliar analysis data to improve these data for diagnostic purposes.

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