Greenhouse Gas Emissions from Rice Fields of Bengaluru Urban District, India

AbstractAnaerobic decomposition of organic material in flooded rice paddy fields produces methane and is considered one of the most prevalent sources for atmospheric methane. Methane from the rice paddy fields escapes to the atmosphere primarily by diffusive transport through the rice plants during the growing season. This paper aimed at the inventarisation of greenhouse gas emissions from the flooded rice paddy fields using Intergovernmental Panel on Climate Change (IPCC) 2006 guidelines – Tier 1 approach  for Agriculture, Forestry and Other Land-use sector. The methane emission from rice paddy fields for the year 1990-1991 was 1.255 Gg or 31.364GgCO2e, while 2012-2013 accounts for 0.269Gg or 6.725GgCO2e. The overall decrease of 21.44% of methane emissions from rice paddy fields was observed during the last two and half decade. The rice paddy fields are decreased over the years due to rapid expansion of the built-up environment in the outskirts of the urban area.

Key words: Agriculture, greenhouse gas, methane, flooded paddy fields.

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