Study finds the fingerprint of paddy rice in atmospheric methane concentration dynamics

phys.org | 3/5/2019 | Staff
chicana948chicana948 (Posted by) Level 3
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A University of Oklahoma-led study shows that paddy rice (both area and plant growth) is significantly related to the spatial-temporal dynamics of atmospheric methane concentration in monsoon Asia, where 87% of paddy rice fields are situated in the world.

Methane is one of the major greenhouse gases. It has a lifetime of 12.4 years and its global warming potential is approximately 86 times higher than carbon dioxide over a 20-year period.

Rice - Paddy - Source - Methane - Emission

"Rice paddy is a large source of methane emission; however, it has been a challenging task to attribute relative role of rice paddy in the spatial distribution, seasonal dynamics and interannual variation of atmospheric methane concentration as measured by spaceborne sensors," said Xiangming Xiao, a member of the Earth Observation and Modeling Facility at OU and a professor in the Department of Microbiology and Plant Biology who coordinated this interdisciplinary study.

Over the past few years, researchers at OU developed annual paddy rice maps at 500-meter spatial resolution and quantified the spatial-temporal changes in rice paddy area in monsoon Asia during 2000-2015. By combining the annual paddy rice...
(Excerpt) Read more at: phys.org
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