Plant responses to elevational gradients of O sub(3) exposures in Virginia

In Shenandoah National Park, O sub(3) monitoring data were characterized and attempts were made to relate O sub(3) concentration levels to visible foliar injury observed for five plant species surveyed. Foliar injury for three species increased with elevation. The 24-h monthly mean O sub(3) concentr...

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Published inProceedings of the National Academy of Sciences - PNAS Vol. 86; no. 22; pp. 8828 - 8832
Main Authors Winner, W E, Lefohn, A S, Cotter, I S, Greitner, C S, Nellessen, J, McEvoy, LR Jr, Olson, R L, Atkinson, C J, Moore, L D
Format Journal Article
LanguageEnglish
Published 01.01.1989
Subjects
Virginia
USA, Virginia
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Summary:In Shenandoah National Park, O sub(3) monitoring data were characterized and attempts were made to relate O sub(3) concentration levels to visible foliar injury observed for five plant species surveyed. Foliar injury for three species increased with elevation. The 24-h monthly mean O sub(3) concentrations tended to increase with elevation; however, the number of elevated hourly occurrences did not. Although the frequency of high hourly O sub(3) concentrations did not consistently increase with elevation, O sub(3) exposures in the park may have been high enough to provoke an effect that may have been enhanced by vegetation sensitivities that differed as a function of altitude.
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SourceType-Scholarly Journals-1
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ISSN:0027-8424