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The amount of carbon dioxide (CO?) released by microbial decomposition of soil organic carbon on a global scale is approximately five times greater than the amount of anthropogenic CO? emissions. Thus, it is essential to clarify the impact of climate change on soil CO? release dynamics.

A collaborative research group consisting of Dr. Hirohiko Nagano and Ms. Yuri Suzuki of Niigata University with Professor from , and the Japan Atomic Energy Agency conducted incubation experiments on forest and pastureland soils at 10 locations across Japan. The research group revealed that the amount of CO? released from soil increases significantly due to repeated drying and rewetting cycles (DWCs) expected to be caused by changes in precipitation patterns due to global warming.

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For more information about this research, see “Comprehensive increase in CO? release by drying-rewetting cycles among Japanese forests and pastureland soils and exploring predictors of increasing magnitude," Yuri Suzuki, Syuntaro Hiradate, Jun Koarashi, Mariko Atarashi-Andoh, Takumi Yomogida, Yuki Kanda, and Hirohiko Nagano, SOIL,

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