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| Effects of ground-level ozone on grain yield and quality of cereal crops in China: Status and perspectives |
| Received:January 10, 2020 |
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| KeyWord:ozone;ecological risk;crop;yield;quality |
| Author Name | Affiliation | | FENG Zhao-zhong | Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China | | PENG Jin-long | State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China |
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| Abstract: |
| In China, the 90th percentile maximum daily 8 h average O3 concentration(90th MDA8)has increased to approximately 80.0 nL·L-1, which is considerably higher than the damage threshold of many crops and poses a serious threat to food security. To systematically understand the effects of O3 on crops, we summarized the research status on risk of O3 in crops, including the effects and mechanisms of O3 on grain yield and quality, and methods and results of regional O3 risk assessments. In addition, several viewpoints were proposed to reinforce knowledge on the mechanism of crop grain yield loss owing to O3, establish more effective agricultural management practice to mitigate O3 damage in crops, improve accuracy and comprehensiveness in O3 risk assessment, and encourage application of remote sensing technology and multifactor experiments in future studies. |
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