| Project/Area Number |
26550018
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | National Institute for Environmental Studies |
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Principal Investigator |
Ito Akihiko 国立研究開発法人国立環境研究所, 地球環境研究センター, 主任研究員 (70344273)
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| Co-Investigator(Renkei-kenkyūsha) |
NOGUCHI Ko 東京薬科大学, 生命科学部応用生命科学科, 教授 (80304004)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 炭素循環 / 地球温暖化 / 植物生理生態 / 生物地球化学 / 生態系モデリング / 暗呼吸 / スケーリング / 代謝 / 地球環境変動 / 陸域生態系モデル / 地球変動 / 生態系モデル / 炭素収支 |
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| Outline of Final Research Achievements |
In this study, we aimed at developing a new scheme of plant dark respiration, which is applicable to global terrestrial carbon cycle models. We conducted a meta-analysis and tried to develop a new method of estimation of ecosystem-scale dark respiration on the basis of the metabolic scaling theory. For the improved estimation of dark respiration under changing environment, we conducted a series to sensitivity analysis with the terrestrial ecosystem model. By including acclimation-like response into the dark respiration scheme, it was implied that the interannual and seasonal changed in net ecosystem CO2 exchange can be improved in comparison with former models.
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