Biogeosciences (B)
Session Sub-category Complex & General(CG)
Session ID B-CG05
Title Methane in terrestrial and aquatic ecosystems: from microbes to the atmosphere
Short Title Methane: from microbes to the atmosphere
Main Convener Name Daniel EPRON
Affiliation Kyoto University
Co-Convener 1 Name Susumu Asakawa
Affiliation Nagoya University
Co-Convener 2 Name Ayaka Sakabe
Affiliation Kyoto University
Co-Convener 3 Name Jun Murase
Affiliation Nagoya University
Session Language
E
Scope
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.
Presentation Format Oral and Poster presentation
Invited Authors Watanabe Takeshi (Graduate School of Bioagricultural Sciences, Nagoya University)
Ornuma Duangngam (Kasetsart University)
Time Presentation No Title Presenter
Oral Presentation May 25 AM1
9:05 - 9:30 BCG05-01 Tree trunks in a mountain forest harbor methanogenic archaea and methane-oxidizing bacteria Watanabe Takeshi
9:30 - 9:45 BCG05-02 The effects of bark stripping by bears on CH4 emissions from Cryptomeria japonica trunks Makoto Nagasawa
9:45 - 10:00 BCG05-03 Mesocosm Investigation of Water Depth Effects on CH4 Emissions and Microbial Dynamics in Agricultural Ponds Yu-Ping Huang
10:00 - 10:15 BCG05-04 Effect of agricultural management on soil greenhouse gases and model validation Syu-Ruei Jhang
Oral Presentation May 25 AM2
10:45 - 11:00 BCG05-05 Methanotrophy-mediated increase in methane emission under higher snowfall in the Arctic ecosystem Hojeong Kang
11:00 - 11:15 BCG05-06 Forest-to-Solar-Farm Conversion Turns a Methane Sink into a Source Due to Soil Compaction Shih-Chieh Chang
11:15 - 11:30 BCG05-07 Soil methane flux and vertical profile of methane concentration, methanotrophs, and methanogens long a topographical gradient in a cool temperate forest Sumonta Kumar Paul
11:30 - 11:45 BCG05-08 Methane fluxes associated with groundwater springs in continuous permafrost of central Yakutia, Northern Eurasia Nikita Tananaev
Presentation No Title Presenter
Poster Presentation May 25 PM3
BCG05-P01 Land use changes affect the strength of the soil methane sink: comparison of a forest, rubber plantation and oil palm plantation in southern Thailand Ornuma Duangngam
BCG05-P02 Response of soil methane uptake rates to increasing atmospheric methane concentrations Ayaka Sakabe
BCG05-P03 Biochar amendment on soil properties and greenhouse gases emissions: An incubation study Syu-Ruei Jhang
BCG05-P04 Methane mitigation in a rice pot experiment: effects of irrigation and modified psy2-3 gene in kitaake rice (Oryza Sativa subsp. japonica) Hao-Chi Lin
BCG05-P05 Dynamics of Potential Active Methanogens and Methanotrophs in Constructed Wetlands: A DNA Stable Isotope Probing Approach Ting-Kai Chen
BCG05-P06 Heterogenous distribution of methanogenic archaeal communities in the trunk of trees in mountain forest Rio Hamada
BCG05-P07 The effect of diel light cycle on the greenhouse gasses dynamics in a wetland rice field soil Bella Tegarwati Simamora
BCG05-P08 Spatial and temporal variability in methane emissions from trees and sediment in a subtropical mangrove forest Daniel EPRON