Harmful effects of atmospheric nitrous acid on the physiological status of scots pine trees
Environmental Pollution 147 巻 3 号
532-534 頁
2007-06 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Harmful effects of atmospheric nitrous acid on the physiological status of scots pine trees
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| 作成者 |
Cape J. Neil
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| 収録物名 |
Environmental Pollution
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| 巻 | 147 |
| 号 | 3 |
| 開始ページ | 532 |
| 終了ページ | 534 |
| 抄録 |
An open top chamber experiment was carried out in the summer of 2003 to examine the effect of nitrous acid (HONO) gas on the physiological status of Scots pine saplings (Pinus sylvestris). Four-year-old pine trees were exposed to two different levels of HONO gas (at ca. 2.5 ppb and 5.0 ppb) and a control (filtered air) from early evening to early morning (18:00–6:00), in duplicate open top chambers. Significant decreases in the ratios of chlorophylls a to b, an increase in the carbon to nitrogen (C/N) ratio, and a reduction of maximum yield of PS II (Fv/Fm) in pine needles were also observed after the 2 months' fumigation. Cation contents of pine needles were also decreased by the fumigation with HONO gas. The results could be explained by the harmful effects of OH radicals, generated from photolysis of HONO gas, and/or aqueous phase HONO (NO2-/HONO), on the photosynthetic capacity of pine needles.
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| 著者キーワード |
HONO
OH radical
Scots pine
Open top chamber
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| NDC分類 |
建設工学・土木工学 [ 510 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
Elsevier Science Ltd
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| 発行日 | 2007-06 |
| 権利情報 |
Copyright (c) 2007 Elsevier Ltd
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| 出版タイプ | Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0269-7491
[DOI] 10.1016/j.envpol.2007.02.012
[NCID] AA10664567
[DOI] http://dx.doi.org/10.1016/j.envpol.2007.02.012
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