The thermal response of soil microbial methanogenesis decreases in magnitude with changing temperature.

ABSTRACT: Microbial methanogenesis in anaerobic soils contributes greatly to global methane (CH₄) release, and understanding its response to temperature is fundamental to predicting the feedback between this potent greenhouse gas and climate change. A compensatory thermal response in microbial activity over time can reduce the response of respiratory carbon (C) release to temperature change, as shown for carbon dioxide (CO₂) in aerobic soils. However, whether microbial methanogenesis also shows a compensatory response to temperature change remains unknown. Here, we used anaerobic wetland soils from the Greater Khingan Range and the Tibetan Plateau to investigate how 160 days of experimental warming (+4°C) and cooling (-4°C) affect the thermal response of microbial CH₄

SUBMITTER: Chen H 

PROVIDER: S-EPMC7665204 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature