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Reductions in India's crop yield due to ozone
Author(s) -
Ghude Sachin D.,
Jena Chinmay,
Chate D. M.,
Beig G.,
Pfister G. G.,
Kumar Rajesh,
Ramanathan V.
Publication year - 2014
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/2014gl060930
Subject(s) - crop , food security , yield (engineering) , environmental science , crop yield , poverty , agricultural economics , crop production , crop loss , geography , agronomy , agroforestry , agriculture , forestry , economics , economic growth , biology , materials science , archaeology , metallurgy
This bottom‐up modeling study, supported by emission inventories and crop production, simulates ozone on local to regional scales. It quantifies, for the first time, potential impact of ozone on district‐wise cotton, soybeans, rice, and wheat crops in India for the first decade of the 21st century. Wheat is the most impacted crop with losses of 3.5 ± 0.8 million tons (Mt), followed by rice at 2.1 ± 0.8 Mt, with the losses concentrated in central and north India. On the national scale, this loss is about 9.2% of the cereals required every year (61.2 Mt) under the provision of the recently implemented National Food Security Bill (in 2013) by the Government of India. The nationally aggregated yield loss is sufficient to feed about 94 million people living below poverty line in India.

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