Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa702f |
Heat stress is overestimated in climate impact studies for irrigated agriculture | |
Siebert, Stefan1; Webber, Heidi1; Zhao, Gang1; Ewert, Frank1,2 | |
2017-05-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Climate change will increase the number and severity of heat waves, and is expected to negatively affect crop yields. Here we show for wheat and maize across Europe that heat stress is considerably reduced by irrigation due to surface cooling for both current and projected future climate. We demonstrate that crop heat stress impact assessments should be based on canopy temperature because simulations with air temperatures measured at standard weather stations cannot reproduce differences in crop heat stress between irrigated and rainfed conditions. Crop heat stress was overestimated on irrigated land when air temperature was used with errors becoming larger with projected climate change. Corresponding errors in mean crop yield calculated across Europe for baseline climate 1984-2013 of 0.2 Mg yr(-1) (2%) and 0.6 Mg yr(-1) (5%) for irrigated winter wheat and irrigated grain maize, respectively, would increase to up to 1.5 Mg yr (1) (16%) for irrigated winter wheat and 4.1 Mg yr (1) (39%) for irrigated grain maize, depending on the climate change projection/GCM combination considered. We conclude that climate change impact assessments for crop heat stress need to account explicitly for the impact of irrigation. |
英文关键词 | heat stress climate change impact assessment irrigation canopy temperature |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402550600007 |
WOS关键词 | CANOPY TEMPERATURE ; WINTER-WHEAT ; WATER-STRESS ; CROP YIELDS ; GROWTH ; MAIZE ; DROUGHT ; UNCERTAINTY ; ENVIRONMENT ; PHENOLOGY |
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/35361 |
专题 | 气候变化 |
作者单位 | 1.Univ Bonn, Inst Crop Sci & Resource Conservat INRES, Crop Sci Grp, Katzenburgweg 5, D-53115 Bonn, Germany; 2.Leibniz Ctr Agr Landscape Res ZALF, D-15374 Muncheberg, Germany |
推荐引用方式 GB/T 7714 | Siebert, Stefan,Webber, Heidi,Zhao, Gang,et al. Heat stress is overestimated in climate impact studies for irrigated agriculture[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(5). |
APA | Siebert, Stefan,Webber, Heidi,Zhao, Gang,&Ewert, Frank.(2017).Heat stress is overestimated in climate impact studies for irrigated agriculture.ENVIRONMENTAL RESEARCH LETTERS,12(5). |
MLA | Siebert, Stefan,et al."Heat stress is overestimated in climate impact studies for irrigated agriculture".ENVIRONMENTAL RESEARCH LETTERS 12.5(2017). |
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