Effects of high CO2 and source-sink balance of rice on methane emission from paddy field

• Project/Area Number: 22880041
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Agricultural environmental engineering
• Research Institution: National Institute for Agro-Environmental Sciences
• Principal Investigator: TOKIDA Takeshi 独立行政法人農業環境技術研究所, 物質循環研究領域, 任期付研究員 (20585856)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,146,000 (Direct Cost: ¥2,420,000、Indirect Cost: ¥726,000); Fiscal Year 2011: ¥1,508,000 (Direct Cost: ¥1,160,000、Indirect Cost: ¥348,000); Fiscal Year 2010: ¥1,638,000 (Direct Cost: ¥1,260,000、Indirect Cost: ¥378,000)
• Keywords: 水田 / イネ / メタン / ソース・シンクバランス / 高CO2 / 気候変動 / 二酸化炭素 / 収量 / シンクサイズ / 開放系大気CO2濃度増加実験 / シンク / 開放系大気CO2濃度増加実験(FACE)

Research Abstract

Rising atmospheric CO_2 concentration promotes photosynthesis of rice, which may lead to greater grain production. Meanwhile, high CO_2 may further stimulate emissions of methane, a potent greenhouse gas, from rice paddies. In this study, we measured both rice yield and methane emission from a free-air CO_2-enriched field, and found that greater individual grain size can be a good trait for rice to achieve both greater yield response to high CO_2 and smaller methane emissions.

Research Products

• [Journal Article] Methane and soil CO_2 production from current-season photosynthates in a rice paddy exposed to elevated CO_2 concentration and soil temperature (2011)
  • Author(s): Tokida, T., Adachi, M., Cheng, W., Nakajima, Y., Fumoto, T., Matsushima, M., Nakamura, H., Okada, M., Sameshima, R., and Hasegawa, T.
  • Journal Title: Global Change Biology Volume: 17 Issue: 11 Pages: 3327-3337
  • DOI: 10.1111/j.1365-2486.2011.02475.x
  • Peer Reviewed
• [Journal Article] Effects of free-air CO_2 enrichment(FACE) and soil warming on CH_4 emission from a rice paddy field : Impact assessment and stoichiometric evaluation (2010)
  • Author(s): Tokida, T., Fumoto, T., Cheng W., Matsunami, T., Adachi, M., Katayanagi, N., Matsushima, M., Okawara, Y., Nakamura, H., Okada, M., Sameshima, R., and Hasegawa, T.
  • Journal Title: Biogeosciences Volume: 7 Issue: 9 Pages: 2639-2653
  • DOI: 10.5194/bg-7-2639-2010
  • Peer Reviewed
• [Journal Article] Effects of free-air CO_2 enrichment (FACE) and soil warming on CH_4 emission from a rice paddy field : Impact assessment and stoichiometric evaluation. (2010)
  • Author(s): Tokida, T., et al.
  • Journal Title: Biogeosciences Volume: 7 Pages: 2639-2653
  • Peer Reviewed
• [Presentation] 開放系大気CO_2濃度上昇が一穂籾数を増加させた染色体断片置換イネの収量に与える影響 (2012)
  • Author(s): 常田岳志、酒井英光、臼井靖浩、氏家和広、石丸健、中村浩史、長谷川利拡
  • Organizer: 日本作物学会
  • Place of Presentation: 東京農工大学
  • Year and Date: 2012-03-29
• [Presentation] 水田から発生するメタンに占める栽培中のイネ由来炭素の重要性-開放系大気CO_2濃度増加実験に伴う炭素安定同位体ラベルの利用- (2010)
  • Author(s): 常田岳志、安立美奈子、程為国、中島泰弘、麓多門、松島未和、中村浩史、岡田益己、鮫島良次、長谷川利拡
  • Organizer: 土壌肥料学会
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-09
• [Presentation] 水田から発生するメタンに占める栽培中のイネ由来炭素の重要性-開放系大気CO_2濃度増加実験に伴う炭素安定同位体ラベルの利用- (2010)
  • Author(s): 常田岳志, ら
  • Organizer: 日本土壌肥料学会
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-09
• [Remarks]
  • URL: http://www.niaes.affrc.go.jp/outline/face/index.html