[B-CG05] Methane in terrestrial and aquatic ecosystems: from microbes to the atmosphere

Thu. May 28, 2026 10:45 AM - 12:15 PM Exhibition Hall Special Setting (5) (Exhibition Hall 7&8, Makuhari Messe)

Chairperson:Asakawa Susumu(Nagoya University), Shiau Yo-Jin(National Taiwan University)

Methane is an important anthropogenic greenhouse gas. The rise of atmospheric CH4 concentration has accelerated these last 10 years, challenging our ability to meet the goal of the Paris agreement to limit climate warming to less than 2 degrees, and leading to the launch of the Global Methane Pledge during the COP26 in 2021. There is still a large gap between bottom-up and top-down estimates of the global CH4 budget, with natural emissions being recognized as the greatest source of uncertainty: clarifying the role of terrestrial ecosystems in its balance is essential for understanding and predicting global warming.
The purpose of the session is to bring together scientists working on methanogenic and methanotrophic microorganisms and communities, measuring methane fluxes from soils, sediments, water, vegetation and at the ecosystem scale, and modelling methane transport and methane budget at different spatial scales to enhance our understanding of methane sources and sinks, and their responses to changing environmental conditions, in terrestrial and aquatic ecosystems, including but not limited to forests, grasslands, wetlands, freshwater bodies, mangroves and other coastal areas and agricultural lands.

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10:45 AM - 11:00 AM

[BCG05-06] Three years of nationwide monitoring reveal spatial patterns of forest soil CO₂ and CH₄ fluxes in Japan

*Shoji Hashimoto¹, Taiki Mori¹, Tadashi Sakata¹, Yukiko Abe¹, Toru Hashimoto¹, Yoshiyuki Inagaki¹, Shigehiro Ishizuka¹, Eriko Ito¹, Yuko Itoh¹, Yuji Kominami¹, Takafumi Miyama¹, Tomoaki Morishita¹, Toru Okamoto¹, Koji Shichi¹, Takanori Shimizu¹, Satoru Takanashi¹, Naoyuki Yamashita¹ (1. Forestry and Forest Products Research Institute)

11:00 AM - 11:15 AM

[BCG05-07] Seasonal variability of carbon dioxide and methane fluxes at ombrotrophic bog in southern taiga

*Maria Zubova¹, Vitaly Avilov¹, Elizaveta Gorbarenko¹, Evgeny Kurbatov^1,2, Vadim Mamkin¹, Sergey Ogurtsov^1,3, Gennady Suvorov¹, Svetlana Trusova¹, Julia Kurbatova¹ (1. A. N. Severtsov Institute of Ecology and Evolution of Russian Academy of Sciences, 2. National Research University Higher School of Economics, 3. Central Forest State Nature Biosphere Reserve)

11:15 AM - 11:30 AM

[BCG05-08] Field-Based Assessment of GHGs in Rice Paddies Under Contrasting Irrigation Regimes

*Yu Hsuan Li¹, Chih-Feng Chiang, Syu-Ruei Jhang¹ (1. Department of Safety,Health and Environmental Engineering, National United University, Miaoli 360301, Taiwan)

11:30 AM - 11:45 AM

[BCG05-09] Effects of Land Use Differences in Northeastern Thailand on Soil Methane Oxidation and Production Potential

*Jun MURASE¹, Makoto SHIBATA³, Ornuma DUANGNGAM², Chatprawee DECHJIRARATTHANASIRI², Kannika SAJJAPHAN², Kanoktip SOMSIRI⁴, Wasan CHANDAENG², Sathid THINKAMPHAENG², Dokrak MAROD², Poonpipope KASEMSAPA², Daniel EPRON³ (1. Nagoya University, 2. Kasetsart University, 3. Kyoto University, 4. Sakaerat Environmental Research Station)

Discussion (11:45 AM - 12:15 PM)

Session information

[B-CG05] Methane in terrestrial and aquatic ecosystems: from microbes to the atmosphere

[BCG05-06] Three years of nationwide monitoring reveal spatial patterns of forest soil CO₂ and CH₄ fluxes in Japan

[BCG05-07] Seasonal variability of carbon dioxide and methane fluxes at ombrotrophic bog in southern taiga

[BCG05-08] Field-Based Assessment of GHGs in Rice Paddies Under Contrasting Irrigation Regimes

[BCG05-09] Effects of Land Use Differences in Northeastern Thailand on Soil Methane Oxidation and Production Potential

Authentication

Session information

[B-CG05] Methane in terrestrial and aquatic ecosystems: from microbes to the atmosphere

[BCG05-06] Three years of nationwide monitoring reveal spatial patterns of forest soil CO2 and CH4 fluxes in Japan

[BCG05-07] Seasonal variability of carbon dioxide and methane fluxes at ombrotrophic bog in southern taiga

[BCG05-08] Field-Based Assessment of GHGs in Rice Paddies Under Contrasting Irrigation Regimes

[BCG05-09] Effects of Land Use Differences in Northeastern Thailand on Soil Methane Oxidation and Production Potential

Authentication

[BCG05-06] Three years of nationwide monitoring reveal spatial patterns of forest soil CO₂ and CH₄ fluxes in Japan