globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.14381
Scopus记录号: 2-s2.0-85052436143
论文题名:
Closing the global ozone yield gap: Quantification and cobenefits for multistress tolerance
作者: Mills G.; Sharps K.; Simpson D.; Pleijel H.; Frei M.; Burkey K.; Emberson L.; Uddling J.; Broberg M.; Feng Z.; Kobayashi K.; Agrawal M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期:10
起始页码: 4869
结束页码: 4893
语种: 英语
英文关键词: aridity ; heat stress ; maize ; nutrient stress ; ozone ; pests and diseases ; rice ; soybean ; stress-tolerant ideotype ; wheat
Scopus关键词: Glycine max ; Triticum aestivum ; Zea mays
英文摘要: Increasing both crop productivity and the tolerance of crops to abiotic and biotic stresses is a major challenge for global food security in our rapidly changing climate. For the first time, we show how the spatial variation and severity of tropospheric ozone effects on yield compare with effects of other stresses on a global scale, and discuss mitigating actions against the negative effects of ozone. We show that the sensitivity to ozone declines in the order soybean > wheat > maize > rice, with genotypic variation in response being most pronounced for soybean and rice. Based on stomatal uptake, we estimate that ozone (mean of 2010–2012) reduces global yield annually by 12.4%, 7.1%, 4.4% and 6.1% for soybean, wheat, rice and maize, respectively (the “ozone yield gaps”), adding up to 227 Tg of lost yield. Our modelling shows that the highest ozone-induced production losses for soybean are in North and South America whilst for wheat they are in India and China, for rice in parts of India, Bangladesh, China and Indonesia, and for maize in China and the United States. Crucially, we also show that the same areas are often also at risk of high losses from pests and diseases, heat stress and to a lesser extent aridity and nutrient stress. In a solution-focussed analysis of these results, we provide a crop ideotype with tolerance of multiple stresses (including ozone) and describe how ozone effects could be included in crop breeding programmes. We also discuss altered crop management approaches that could be applied to reduce ozone impacts in the shorter term. Given the severity of ozone effects on staple food crops in areas of the world that are also challenged by other stresses, we recommend increased attention to the benefits that could be gained from addressing the ozone yield gap. © 2018 The Authors. Global Change Biology Published by John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110212
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Centre for Ecology and Hydrology, Bangor, United Kingdom; Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden; EMEP MSC-W, Norwegian Meteorological Institute, Oslo, Norway; Department of Space, Earth & Environment, Chalmers University of Technology, Gothenburg, Sweden; Institute of Crop Science and Resource Conservation, University of Bonn, Bonn, Germany; USDA-ARS, Raleigh, NC, United States; Environment Department, Stockholm Environment Institute at York, University of York, York, United Kingdom; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; Department of Global Agricultural Sciences, The University of Tokyo, Tokyo, Japan; Department of Botany, Institute of Science, Banaras Hindu University, Uttar Pradesh, India

Recommended Citation:
Mills G.,Sharps K.,Simpson D.,et al. Closing the global ozone yield gap: Quantification and cobenefits for multistress tolerance[J]. Global Change Biology,2018-01-01,24(10)
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