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Study on the Tolerance of Common Tree Species to Nitrogen Dioxide

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Abstract:

The present study analyzed the tolerance of 10 common woody plants to gaseous nitrogen dioxide (NO2). Experimental trees species were placed in fumigation chambers and exposed to different concentrations of NO2 (600, 1000, and 2000 ppb) for 48 hours. Their physiological health was determined by measuring how chlorophyll fluorescence varied, identifying which tree species were more adaptive and resistant to NO2. The results showed that NO2-affected plants were harmed to some extent by reduced levels of chlorophyll fluorescence, which decreased more serous with higher concentrations of NO2. Among the experimental tree species, the tolerance to NO2 was ranked as Melia azedarach > Decussocarpus nagi > Palaquium formosanum > Pongamia pinnata > Messerschmidia argentea > Diospyros morrisiana > Lagerstroemia speciosa > Semecarpus gigantifolia > Aglaia formosana > Koelreuteria formosana.

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Periodical:

Applied Mechanics and Materials (Volumes 448-453)

Pages:

960-963

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.448-453.960

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Online since:

October 2013

Authors:

Chung Yi Chung*, Pei Ling Chung, Shao Wei Liao, Wen Liang Lai

Keywords:

Chlorophyll Fluorescence, Fumigation, Nitrogen Dioxide, Plant, Tolerance

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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