title: Methane production, oxidation and mitigation: A mechanistic understanding and comprehensive evaluation of influencing factors.
abstract: Methane is one of the critical greenhouse gases, which absorb long wavelength radiation, affects the chemistry of atmosphere and contributes to global climate change. Rice ecosystem is one of the major anthropogenic sources of methane. The anaerobic waterlogged soil in rice field provides an ideal environment to methanogens for methanogenesis. However, the rate of methanogenesis differs according to rice cultivation regions due to a number of biological, environmental and physical factors like carbon sources, pH, Eh, temperature etc. The interplay between the different conditions and factors may also convert the rice fields into sink from source temporarily. Mechanistic understanding and comprehensive evaluation of these variations and responsible factors are urgently required for designing new mitigation options and evaluation of reported option in different climatic conditions. The objective of this review paper is to develop conclusive understanding on the methane production, oxidation, and emission and methane measurement techniques from rice field along with its mitigation/abatement mechanism to explore the possible reduction techniques from rice ecosystem.
authors: Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
authors: Sandeep K
authors: SK
authors: Malyan
authors: Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India. Electronic address: abensc@gmail.com.
authors: Arti
authors: A
authors: Bhatia
authors: Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
authors: Amit
authors: A
authors: Kumar
authors: ICAR-Central Arid Zone Research Institute, Regional Research Station, Pali-Marwar, Rajasthan 342003, India.
authors: Dipak Kumar
authors: DK
authors: Gupta
authors: Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
authors: Renu
authors: R
authors: Singh
authors: Department of Environmental Science and Engineering, Guru Jambheshwar University of Science and Technology, Hisar, Haryana 125001, India.
authors: Smita S
authors: SS
authors: Kumar
authors: Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
authors: Ritu
authors: R
authors: Tomer
authors: Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
authors: Om
authors: O
authors: Kumar
authors: Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
authors: Niveta
authors: N
authors: Jain
keywords: Measurement; Methane emission; Mitigation; Rice