2011 Fiscal Year Final Research Report
Effects of high CO2 and source-sink balance of rice on methane emission from paddy field
| Project/Area Number |
22880041
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Agricultural environmental engineering
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| Research Institution | National Institute for Agro-Environmental Sciences |
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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)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 水田 / イネ / メタン / ソース・シンクバランス / 高CO2 / 気候変動 |
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| 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.
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[Journal Article] Methane and soil CO_2 production from current-season photosynthates in a rice paddy exposed to elevated CO_2 concentration and soil temperature2011
Author(s)
Tokida, T., Adachi, M., Cheng, W., Nakajima, Y., Fumoto, T., Matsushima, M., Nakamura, H., Okada, M., Sameshima, R., and Hasegawa, T.
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Journal Title
Global Change Biology
Volume: 17
Pages: 3327-3337
DOI
Peer Reviewed
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[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 evaluation2010
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.
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Journal Title
Biogeosciences
Volume: 7
Pages: 2639-2653
DOI
Peer Reviewed
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