Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-5953-2018 |
Particulate matter air pollution may offset ozone damage to global crop production | |
Schiferl, Luke D.1; Heald, Colette L.1,2 | |
2018-04-27 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:8页码:5953-5966 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Ensuring global food security requires a comprehensive understanding of environmental pressures on food production, including the impacts of air quality. Surface ozone damages plants and decreases crop production; this effect has been extensively studied. In contrast, the presence of particulate matter (PM) in the atmosphere can be beneficial to crops given that enhanced light scattering leads to a more even and efficient distribution of photons which can outweigh total incoming radiation loss. This study quantifies the impacts of ozone and PM on the global production of maize, rice, and wheat in 2010 and 2050. We show that accounting for the growing season of these crops is an important factor in determining their air pollution exposure. We find that the effect of PM can offset much, if not all, of the reduction in yield associated with ozone damage. Assuming maximum sensitivity to PM, the current (2010) global net impact of air quality on crop production varies by crop (+5.6, -3.7, and +4.5% for maize, wheat, and rice, respectively). Future emissions scenarios indicate that attempts to improve air quality can result in a net negative effect on crop production in areas dominated by the PM effect. However, we caution that the uncertainty in this assessment is large, due to the uncertainty associated with crop response to changes in diffuse radiation; this highlights that a more detailed physiological study of this response for common cultivars is crucial. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000431045800003 |
WOS关键词 | LAND-CARBON SINK ; UNITED-STATES ; DIFFUSE-RADIATION ; PLANT PRODUCTIVITY ; CLIMATE-CHANGE ; TALL TOWER ; IN-SITU ; EMISSIONS ; AEROSOL ; CONSTRAINTS |
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/29461 |
专题 | 地球科学 |
作者单位 | 1.MIT, Dept Civil & Environm Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA; 2.MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA |
推荐引用方式 GB/T 7714 | Schiferl, Luke D.,Heald, Colette L.. Particulate matter air pollution may offset ozone damage to global crop production[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(8):5953-5966. |
APA | Schiferl, Luke D.,&Heald, Colette L..(2018).Particulate matter air pollution may offset ozone damage to global crop production.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(8),5953-5966. |
MLA | Schiferl, Luke D.,et al."Particulate matter air pollution may offset ozone damage to global crop production".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.8(2018):5953-5966. |
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