| A system for free-air ozone concentration elevation with rice and wheat: Control performance and ozone exposure regime | |
| Tang, Haoye1,2; Liu, Gang2; Han, Yong2; Zhu, Jianguo2; Kobayashi, Kazuhiko1 | |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 2011-11-01 | |
| 卷号 | 45期号:35页码:6276-6282 |
| 关键词 | Ozone FACE Rice Wheat Ozone dose metrics Open-top chamber |
| ISSN号 | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2011.08.059 |
| 通讯作者 | Kobayashi, Kazuhiko(aclasman@mail.ecc.u-tokyo.ac.jp) |
| 英文摘要 | A system for free-air concentration enrichment with ozone (FACE-O(3)) was installed in a field in Jiangsu Province of China to grow wheat and rice plants in either ambient [O(3)] (A-O(3)) or elevated [O(3)] (E-O(3)) without any enclosures. Ozone generated from pure O(2) and mixed with compressed air was released into the E-O(3) plots from a 14 m diameter octagon. The gas release was controlled for each E-O(3) plot with an algorithm based on wind direction, wind speed and [O(3)] at the center of the plot. With 1-min mean [O(3)], the achieved elevation was within +/-20% of the target, which is 50% above A-O(3), for 94% of time, and within 10% of the target for 73% of time on average across 4 years from 2007 to 2010. Ozone fumigation ran on daytime, but was withheld when ambient [O(3)] was below 20 ppb or leaves were wet. The discontinuity in O(3) release resulted in the daily mean 7 h [O(3)] (M7, 900-1600 h Chinese Standard Time) in E-O(3) by only 24% higher than that in A-O(3). The average effective increase in AOT40 (accumulated [O(3)] above the threshold of 40 ppb) was 115%. Ozone exposure regime in E-O(3) as characterized by M7 and AOT40 was compared with that in a scaled-up [O(3)] (S-O(3)), which was obtained by scaling A-O(3) by 1.24: the ratio of M7 in E-O(3) to that in A-O(3). For the same M7. E-O(3) had higher AOT40 than S-O(3), because E-O(3) had more high [O(3)] peaks than S-O(3). The shift in AOT40 is only modest, however, and the [O(3)] regime in E-O(3) was consistent with that in open-top chamber experiments in the past. This FACE-O(3) system can thus maintain elevated [O(3)] in open field with modest alteration to [O(3)] regime to an extent comparable to open-top chambers. (C) 2011 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | AGRICULTURAL CROP YIELDS ; CARBON-DIOXIDE ; SURFACE OZONE ; FIELD CONDITIONS ; ENRICHMENT FACE ; CO2 ENRICHMENT ; AMBIENT OZONE ; IMPACT ; METAANALYSIS ; GROWTH |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000295653800002 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2559008 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Kobayashi, Kazuhiko |
| 作者单位 | 1.Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, Tokyo 1138657, Japan 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Haoye,Liu, Gang,Han, Yong,et al. A system for free-air ozone concentration elevation with rice and wheat: Control performance and ozone exposure regime[J]. ATMOSPHERIC ENVIRONMENT,2011,45(35):6276-6282. |
| APA | Tang, Haoye,Liu, Gang,Han, Yong,Zhu, Jianguo,&Kobayashi, Kazuhiko.(2011).A system for free-air ozone concentration elevation with rice and wheat: Control performance and ozone exposure regime.ATMOSPHERIC ENVIRONMENT,45(35),6276-6282. |
| MLA | Tang, Haoye,et al."A system for free-air ozone concentration elevation with rice and wheat: Control performance and ozone exposure regime".ATMOSPHERIC ENVIRONMENT 45.35(2011):6276-6282. |
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