2015 Fiscal Year Final Research Report
A study on canopy-scale methyl halide flux measurements in the southeasten tropical rainforest
| Project/Area Number |
24310016
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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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 |
Saito Takuya 国立研究開発法人国立環境研究所, 環境計測研究センター, 主任研究員 (40414370)
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| Co-Investigator(Kenkyū-buntansha) |
Kosugi Yoshiko 京都大学, (連合)農学研究科(研究院), 助教 (90293919)
Takanashi Satoru 国立研究開発法人・森林総合研究所, 気象環境研究領域, 主任研究員 (90423011)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 塩化メチル / 簡易渦集積法 / フタバガキ / オゾン破壊 |
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| Outline of Final Research Achievements |
Methyl chloride (CH3Cl) is the most abundant long-lived volatile organochlorine compound in the atmosphere and thus acts as the major carrier of ozone-destroying chlorine to the stratosphere. To determine CH3Cl flux in tropical forest ecosystems, we developed a canopy-scale flux measurement system besed on the relaxed eddy accumulation (REA) technique which has not been applied to the measurement of CH3Cl flux. We conducted the canopy-scale flux measurements of CH3Cl above a tropical rainforest in Malaysia using the REA technique. The measurements showed a positive flux at the level of microgrom/m2/h, indicating emissions of CH3Cl from the forests to atmosphere.
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| Free Research Field |
大気化学
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