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A comprehensive assessment of yield loss in rice due to surface ozone pollution in India during 2005–2020: A great concern for food security

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Relation http://oar.icrisat.org/12545/
https://www.sciencedirect.com/science/article/abs/pii/S0308521X23002548
https://doi.org/10.1016/j.agsy.2023.103849
 
Title A comprehensive assessment of yield loss in rice due to surface ozone pollution in India during 2005–2020: A great concern for food security
 
Creator Anagha, K S
Kuttippurath, J
Sharma, M
Cuesta, J
 
Subject Rice
Climate Change
India
 
Description CONTEXT: About 60% of the world population relies primarily on rice as their staple food, and India ranks
second in terms of global rice production. Studies have shown the adverse impact of surface ozone pollution on
agriculture, particularly the yield loss (YL) of major staple crops.
OBJECTIVE: (i) To assess the bias associated with ozone data used for YL estimation, (ii) to find the uncertainties
in ozone exposure/crop-response methods applied for computing YL and (iii) to analyse the spatio-temporal
variability of YL in rice due to surface ozone in India for the period 2005–2020 to assess food security of the
country.
METHODS: We use the Tropospheric Emission Spectrometer chemical reanalysis (TCR-2) surface ozone data and
the ozone exposure/crop-response functions to compute YL in rice.
RESULTS AND CONCLUSIONS: By using the AOT40 crop-response method, we find a crop production loss (CPL)
of about 7.39 million tonnes (Mt) of rice in 2005, which increased to 11.46 Mt. in 2020. The estimated average
CPL for the study period is sufficient to feed about 233 million people per year. It also has incurred an economic
loss of about $2.92 billion in 2020.
SIGNIFICANCE: Atmospheric pollution must be reduced to protect crop health and ensure food security, as
evidenced by the two-fold rise of YL in rice due to ozone pollution during the past decade in India. This is also
applicable to all agrarian economies of the world with high atmospheric pollution; reiterating the global significance
of this study.
 
Publisher Elsevier
 
Date 2024-01-11
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_by_nc_nd
 
Identifier http://oar.icrisat.org/12545/1/Agricultural%20Systems_215_1-12_2024.pdf
Anagha, K S and Kuttippurath, J and Sharma, M and Cuesta, J (2024) A comprehensive assessment of yield loss in rice due to surface ozone pollution in India during 2005–2020: A great concern for food security. Agricultural Systems (TSI), 215. pp. 1-12. ISSN 0308-521X