1. Greenhouse gas emission from rice fields: a review from Indian context.
- Author
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Gupta, Khushboo, Kumar, Raushan, Baruah, Kushal Kumar, Hazarika, Samarendra, Karmakar, Susmita, and Bordoloi, Nirmali
- Subjects
GREENHOUSE gases ,CLIMATE change ,FIELD emission ,CROP management ,GOVERNMENT agencies - Abstract
Agricultural soil acts as a source and sink of important greenhouse gases (GHGs) like methane (CH
4 ), nitrous oxide (N2 O), and carbon dioxide (CO2 ). Rice paddies have been a major concern to scientific community, because they produce the threatening and long-lasting GHGs mainly CH4 and N2 O. Around 30% and 11% of global agricultural CH4 and N2 O, respectively, emitted from rice fields. Thus, it is urgent to concurrently quantify the fluxes of CH4 and N2 O to improve understanding of both the gases from rice fields and to develop mitigation strategies for upcoming climate change reduction. An effort is being made in this review to discuss exclusively the emission of CH4 and N2 O under normal and controlled conditions in different locations of India and also addresses the current synthesis of available data on how field and crop management activities influence CH4 and N2 O emissions in rice fields. Making changes to conventional crop management regimes could have a significant impact on reducing GHG emissions from rice field. Environmental and agricultural factors related to soil could be easily altered by management practices. So, knowing the mechanism of CH4 and N2 O production and release in the rice field and factors controlling the emissions is fundamental to develop well-organized strategies to reduce emissions from rice cultivated soil. This will help the regulatory bodies or policy makers to formulate adequate policies for agricultural farmers to refine the GHG emissions as well as minimize the global climate change. [ABSTRACT FROM AUTHOR]- Published
- 2021
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