Yield and economic losses in maize caused by ambient ozone in the North China Plain (2014-2017)
文献类型：期刊论文
| 作者 | Feng, Zhaozhong; Hu, Tingjian; Tai, Amos P. K.; Calatayud, Vicent |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2020-06-20 |
| 卷号 | 722页码:1-13 |
| ISSN号 | 0048-9697 |
| 关键词 | Air pollution Economic loss Maize O-3 Phenology Yield loss |
| 英文摘要 | y Maize is the second most important crop per harvested area in the world. The North China Plain (NCP) is a highly populated and relevant agricultural region in China, experiencing some of the highest ozone (O-3) concentrations worldwide. It produces similar to 24% of the total maize production of China in years 2014-2017. For these years, we used observational O3 data in combination with geostatistic methods to estimate county-level production and economic losses due to O-3 in the NCP. AOT40 (accumulated ozone exposure over an hourly threshold of 40 ppb) values during the maize growing season (90 days before maturity) progressively increased in the four consecutive years: 13.7 ppmh, 15.4 ppmh, 16.9 ppmh and 22.7 ppmh. Mean relative yield losses were 8.2% in 2014, 9.2% in 2015, 10.4% in 2016 and 13.4% in 2017. These yield losses, derived from exposure-response functions, resulted in crop production losses of 530.3 x 10(4) t, 617.8x 10(4) t, 713.8 x 10(4) t, and 953.4x 10(4) t, as well as economic losses of 2343 million USD, 2672 million USD, 1887 million USD, and 2404 million USD from 2014 to 2017. The NCP is a key area in China for monitoring the effectiveness of the clean air action policies aiming at reducing emissions of air pollutants. Despite these measures, O-3 concentrations have increased in NCP, and reduction of this pollutant are challenging. We suggest an increase in the number of rural air quality stations for better characterizing O-3 trends in crop land areas, as well as the application of different mitigation measures. They may involve more stringent air quality regulations and changes in crops, breeding tolerant cultivars and a crop management taking into account O-3 pollution. (C) 2020 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44519]  |
| 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 | Feng, Zhaozhong,Hu, Tingjian,Tai, Amos P. K.,et al. Yield and economic losses in maize caused by ambient ozone in the North China Plain (2014-2017)[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,722:1-13. |
| APA | Feng, Zhaozhong,Hu, Tingjian,Tai, Amos P. K.,&Calatayud, Vicent.(2020).Yield and economic losses in maize caused by ambient ozone in the North China Plain (2014-2017).SCIENCE OF THE TOTAL ENVIRONMENT,722,1-13. |
| MLA | Feng, Zhaozhong,et al."Yield and economic losses in maize caused by ambient ozone in the North China Plain (2014-2017)".SCIENCE OF THE TOTAL ENVIRONMENT 722(2020):1-13. |
入库方式： OAI收割
来源：生态环境研究中心
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