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Title: Acute O3 damage on first year coppice sprouts of aspen and maple sprouts in an open-air experiment

Abstract

We studied the effect of high ozone (O{sub 3}) concentration (110-490 nmol mol{sup -1}) on regenerating aspen (Populus tremuloides) and maple (Acer saccharum) trees at an open-air O{sub 3} pollution experiment near Rhinelander WI USA. This study is the first of its kind to examine the effects of acute O{sub 3} exposure on aspen and maple sprouts after the parent trees, which were grown under elevated O{sub 3} and/or CO{sub 2} for 12 years, were harvested. Acute O{sub 3} damage was not uniform within the crowns of aspen suckers; it was most severe in the mature, fully expanded photosynthesizing leaves. Young expanding leaves showed no visible signs of acute O{sub 3} damage contrary to expectations. Stomatal conductance played a primary role in the severity of acute O{sub 3} damage as it directly controlled O{sub 3} uptake. Maple sprouts, which had lower stomatal conductance, smaller stomatal aperture, higher stomatal density and larger leaf surface area, were tolerant of acute O{sub 3} exposure. Moreover, elevated CO{sub 2} did not ameliorate the adverse effects of acute O{sub 3} dose on aspen and maple sprouts, in contrast to its ability to counteract the effects of long-term chronic exposure to lower O{sub 3} levels.

Authors:
; ; ; ;
Publication Date:
Research Org.:
BROOKHAVEN NATIONAL LABORATORY (BNL)
Sponsoring Org.:
USDOE SC OFFICE OF SCIENCE (SC)
OSTI Identifier:
1040528
Report Number(s):
BNL-96423-2011-JA
Journal ID: ISSN 1464-0325; TRN: US201210%%704
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Journal of Environmental Monitoring
Additional Journal Information:
Journal Volume: 13; Journal Issue: 9; Journal ID: ISSN 1464-0325
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; 54 ENVIRONMENTAL SCIENCES; ASPENS; CHRONIC EXPOSURE; COPPICES; MAPLES; OZONE; POLLUTION; SURFACE AREA; TREES

Citation Formats

Darbah, J.N., Nagy, J., Jones, W. S., Burton, A. J., and Kubiske, M. E. Acute O3 damage on first year coppice sprouts of aspen and maple sprouts in an open-air experiment. United States: N. p., 2011. Web. doi:10.1039/c1em10269a.
Darbah, J.N., Nagy, J., Jones, W. S., Burton, A. J., & Kubiske, M. E. Acute O3 damage on first year coppice sprouts of aspen and maple sprouts in an open-air experiment. United States. doi:10.1039/c1em10269a.
Darbah, J.N., Nagy, J., Jones, W. S., Burton, A. J., and Kubiske, M. E. Sat . "Acute O3 damage on first year coppice sprouts of aspen and maple sprouts in an open-air experiment". United States. doi:10.1039/c1em10269a.
@article{osti_1040528,
title = {Acute O3 damage on first year coppice sprouts of aspen and maple sprouts in an open-air experiment},
author = {Darbah, J.N. and Nagy, J. and Jones, W. S. and Burton, A. J. and Kubiske, M. E.},
abstractNote = {We studied the effect of high ozone (O{sub 3}) concentration (110-490 nmol mol{sup -1}) on regenerating aspen (Populus tremuloides) and maple (Acer saccharum) trees at an open-air O{sub 3} pollution experiment near Rhinelander WI USA. This study is the first of its kind to examine the effects of acute O{sub 3} exposure on aspen and maple sprouts after the parent trees, which were grown under elevated O{sub 3} and/or CO{sub 2} for 12 years, were harvested. Acute O{sub 3} damage was not uniform within the crowns of aspen suckers; it was most severe in the mature, fully expanded photosynthesizing leaves. Young expanding leaves showed no visible signs of acute O{sub 3} damage contrary to expectations. Stomatal conductance played a primary role in the severity of acute O{sub 3} damage as it directly controlled O{sub 3} uptake. Maple sprouts, which had lower stomatal conductance, smaller stomatal aperture, higher stomatal density and larger leaf surface area, were tolerant of acute O{sub 3} exposure. Moreover, elevated CO{sub 2} did not ameliorate the adverse effects of acute O{sub 3} dose on aspen and maple sprouts, in contrast to its ability to counteract the effects of long-term chronic exposure to lower O{sub 3} levels.},
doi = {10.1039/c1em10269a},
journal = {Journal of Environmental Monitoring},
issn = {1464-0325},
number = 9,
volume = 13,
place = {United States},
year = {2011},
month = {10}
}