Abstract: The Behavior of Greenhouse Gas Emission Using Carbon Isotopic Signature from Rice Paddy Fields. (ASA, CSSA and SSSA International Annual Meetings (2015))

300-1 The Behavior of Greenhouse Gas Emission Using Carbon Isotopic Signature from Rice Paddy Fields.

Poster Number 408

Tuesday, November 17, 2015

Minneapolis Convention Center, Exhibit Hall BC

Toru Nakajima¹, Kosuke Noborio², Shujiro Komiya³, Rin Kokubo⁴, Takuya Watanabe⁵ and Mariko Inoue⁵, (1)Department of Bioproduction and Environment Engineering, Tokyo University of Agriculture, Setagaya, Tokyo, JAPAN
(2)Meiji University, Kawasaki-shi, Japan
(3)1-1-1 Higashi-Mita, Tama-ku, Meiji University, Kawasaki, Kanagawa, JAPAN
(4)C/O Noborio / Land resource Laboratory, Meiji University, Kawasaki, tama-ku, JAPAN
(5)Meiji University, Kawasaki, Japan

Abstract:

Rice paddy fields are a major source of greenhouse gas such as methane (CH₄) and carbon dioxide (CO₂) in monsoon Asian region. Few studies have been done to evaluate the biosynthetic pathways of CH₄ and CO₂ under rice paddy field in monsoon Asian region and soil environmental conditions. The objective of this study was to evaluate the behavior of CH₄ and CO₂ in rice paddy fields. Caron isotopic signature for CH₄ and CO₂ were measured using a cavity ring-down spectroscopy analyzer (model G3301-i, PICARRO Inc.). Soil moisture and temperature, electric conductivity, soil redox potential, net irradiance were also monitored as well.

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