Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa723b |
Wheat yield loss attributable to heat waves, drought and water excess at the global, national and subnational scales | |
Zampieri, M.; Ceglar, A.; Dentener, F.; Toreti, A. | |
2017-06-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | Heat waves and drought are often considered the most damaging climatic stressors for wheat. In this study, we characterize and attribute the effects of these climate extremes on wheat yield anomalies (at global and national scales) from 1980 to 2010. Using a combination of up-to-date heat wave and drought indexes (the latter capturing both excessively dry and wet conditions), we have developed a composite indicator that is able to capture the spatio-temporal characteristics of the underlying physical processes in the different agro-climatic regions of the world. At the global level, our diagnostic explains a significant portion (more than 40%) of the inter-annual production variability. By quantifying the contribution of national yield anomalies to global fluctuations, we have found that just two concurrent yield anomalies affecting the larger producers of the world could be responsible for more than half of the global annual fluctuations. The relative importance of heat stress and drought in determining the yield anomalies depends on the region. Moreover, in contrast to common perception, water excess affects wheat production more than drought in several countries. We have also performed the same analysis at the subnational level for France, which is the largest wheat producer of the European Union, and home to a range of climatic zones. Large subnational variability of inter-annual wheat yield is mostly captured by the heat and water stress indicators, consistently with the country-level result. |
英文关键词 | wheat yield heat waves drought water excess Combined Stress Index (CSI) Heat Magnitude Day (HMD) index Supplementary material for this article is available online |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403068100001 |
WOS关键词 | HIGH-TEMPERATURE STRESS ; IMPACTS ; MODELS ; CROPS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37595 |
专题 | 气候变化 |
作者单位 | European Commiss, Joint Res Ctr, Ispra, Italy |
推荐引用方式 GB/T 7714 | Zampieri, M.,Ceglar, A.,Dentener, F.,et al. Wheat yield loss attributable to heat waves, drought and water excess at the global, national and subnational scales[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(6). |
APA | Zampieri, M.,Ceglar, A.,Dentener, F.,&Toreti, A..(2017).Wheat yield loss attributable to heat waves, drought and water excess at the global, national and subnational scales.ENVIRONMENTAL RESEARCH LETTERS,12(6). |
MLA | Zampieri, M.,et al."Wheat yield loss attributable to heat waves, drought and water excess at the global, national and subnational scales".ENVIRONMENTAL RESEARCH LETTERS 12.6(2017). |
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