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 in | Proceedings of the National Academy of Sciences - PNAS Vol. 86; no. 22; pp. 8828 - 8832 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
01.01.1989
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Subjects | |
Online Access | Get full text |
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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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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 content type line 23 ObjectType-Feature-1 |
ISSN: | 0027-8424 |