Ozone exposure- and flux-based response relationships with photosynthesis of winter wheat under fully open air condition
文献类型：期刊论文
| 作者 | Zhu, Jianguo; Feng, Zhaozhong; Calatayud, Vicent; Kobayashi, Kazuhiko |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 619页码:1538-1544 |
| 关键词 | Dose-response relationships Ozone Photosynthesis Subtropical region Wheat |
| ISSN号 | 0048-9697 |
| 文献子类 | Article |
| 英文摘要 | Fivewinter wheat cultivars were exposed to ambient (A-O-3) and elevated (E-O-3, 1.5 ambient) O-3 in a fully open-air fumigation system in China. Ozone exposure-and flux based response relationships were established for seven physiological variables related to photosynthesis. The performance of the fitting of the regressions in terms of R-2 increased when second order regressions instead of first order ones were used, suggesting that effects of O-3 were more pronounced towards the last developmental stages of the wheat. The more robust indicators were those related with CO2 assimilation, Rubisco activity and RuBP regeneration capacity (A(sat), J(max) and Vc(max)), and chlorophyll content (Chl). Flux-based metrics (PODy, Phytotoxic O-3 Dose over a threshold y nmol O-3 m(-2) s(-1)) predicted slightly better the responses to O-3 than exposure metrics (AOTX, Accumulated O-3 exposure over an hourly Threshold of X ppb) for most of the variables. The best performance was observed for metrics POD1 (A(sat), J(max) and Vc(max)) and POD3 (Chl). For this crop, the proposed response functions could be used for O-3 risk assessment based on physiological effects and also to include the influence of O-3 on yield or other variables in models with a photosynthetic component. (C) 2017 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40621]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhu, Jianguo,Feng, Zhaozhong,Calatayud, Vicent,et al. Ozone exposure- and flux-based response relationships with photosynthesis of winter wheat under fully open air condition[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,619:1538-1544. |
| APA | Zhu, Jianguo,Feng, Zhaozhong,Calatayud, Vicent,&Kobayashi, Kazuhiko.(2018).Ozone exposure- and flux-based response relationships with photosynthesis of winter wheat under fully open air condition.SCIENCE OF THE TOTAL ENVIRONMENT,619,1538-1544. |
| MLA | Zhu, Jianguo,et al."Ozone exposure- and flux-based response relationships with photosynthesis of winter wheat under fully open air condition".SCIENCE OF THE TOTAL ENVIRONMENT 619(2018):1538-1544. |
入库方式： OAI收割
来源：生态环境研究中心
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