DOI: 10.1007/s10584-016-1878-8
Scopus记录号: 2-s2.0-85007489776
论文题名: Global warming and local air pollution have reduced wheat yields in India
作者: Gupta R. ; Somanathan E. ; Dey S.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2017
卷: 140, 期: 2018-03-04 起始页码: 593
结束页码: 604
语种: 英语
Scopus关键词: Aerosols
; Atmospheric aerosols
; Global warming
; Image reconstruction
; Optical properties
; Pollution
; Radiometers
; Regression analysis
; Solar radiation
; Aerosol optical depths
; Impact of temperatures
; Local air pollutions
; Maximum and minimum temperatures
; Moderate resolution imaging spectroradiometer sensors
; Regional pollution
; Standard deviation
; Wheat yield
; Air pollution
; aerosol property
; atmospheric pollution
; climate effect
; crop yield
; global warming
; pollution effect
; regression analysis
; solar radiation
; temperature effect
; temperature profile
; wheat
; India
; Triticum aestivum
英文摘要: We use regression analysis on data from 208 districts over the period 1981–2009 to examine the impact of temperature and solar radiation (affected by pollution from aerosols) on wheat yields in India. We find that a 1 °C increase in average daily maximum and minimum temperatures tends to lower yields by 2–4% each. A 1% increase in solar radiation increases yields by nearly 1%. Yields are estimated to be about 5.2% lower than they would have been if temperatures had not increased during the study period. We combine the estimated impacts of weather on yield with the estimated impacts of aerosol pollution (measured by moderate resolution imaging spectroradiometer sensor in terms of aerosol optical depth, aerosol optical depth (AOD) in 2001–2013) on weather to compute the net impact of reducing aerosol pollution on wheat yields. A one-standard-deviation decrease in AOD is estimated to increase yields by about 4.8%. Our results imply reducing regional pollution and curbing global warming in the coming decades can counter wheat yield losses. © 2016, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84104
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Indian School of Business, Hyderabad, India; Economics and Planning Unit, Indian Statistical Institute, Delhi, India; Centre for Atmospheric Sciences, Indian Institute of Technology, Delhi, India
Recommended Citation:
Gupta R.,Somanathan E.,Dey S.. Global warming and local air pollution have reduced wheat yields in India[J]. Climatic Change,2017-01-01,140(2018-03-04)