New understandings of methane dynamics of forest ecosystems using TDLS analyzers
Project/Area Number |
23248023
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Forest science
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Research Institution | Kyoto University |
Principal Investigator |
KOSUGI Yoshiko 京都大学, (連合)農学研究科(研究院), 助教 (90293919)
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Co-Investigator(Kenkyū-buntansha) |
HARAZONO Yoshinobu 大阪府立大学, 生命環境科学研究科, 客員研究員 (90137240)
TAKAHASHI Kenshi 京都大学, 生存圏研究所, 准教授 (10303596)
UEYAMA Masahito 大阪府立大学, 生命環境科学研究科, 助教 (60508373)
KAMAKURA Mai 京都大学, 農学研究科, 学振特別研究員 (40523840)
MANO Masami 千葉大学, 園芸学研究科, 助教 (10391210)
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Project Period (FY) |
2011-04-01 – 2014-03-31
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥50,830,000 (Direct Cost: ¥39,100,000、Indirect Cost: ¥11,730,000)
Fiscal Year 2013: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2012: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2011: ¥26,390,000 (Direct Cost: ¥20,300,000、Indirect Cost: ¥6,090,000)
|
Keywords | メタン / TDLS / 渦集積法 / 渦相関法 / チャンバー法 |
Research Abstract |
This study examined the methane dynamics of forest ecosystems using TDLS analyzers. By using the eddy covariance, the eddy accumulation, and the profile methods, ecosystem-scale methane flux and its daily, seasonal and inter-annual variation was continuously monitoring. At the same time, methane fluxes of each components in the forest (wetland, dry-upland, foliage, trunk, and so on) were continuously monitored with the chamber method, to reveal the sink/source of methane and their spacio-temporal variations. As a result, range and fluctuation of methane flux of forest ecosystems including wetlands were quantified. These forests can be a methane source.
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Report
(4 results)
Research Products
(75 results)
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[Journal Article] Is the empirical coefficient b for the relaxed eddy accumulation method constant?2014
Author(s)
Sakabe, A., Ueyama, M., Kosugi, Y., Hamotani, K., Hirano, T., Hirata, R
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Journal Title
Journal of Atmospheric Chemistry
Volume: 71
Related Report
Peer Reviewed
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[Journal Article] High-precision measurements of the methane 1 flux over a larch forest based on a hyperbolic relaxed eddy accumulation method using a laser spectrometerm2013
Author(s)
Ueyama, M., Takai, Y., Takahashi, Y., Ide, R., Hamotani, K., Kosugi, Y., Takahashi, K., Saigusa, N.:
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Journal Title
Agricultural and Forest Meteorology
Volume: 178
Pages: 183-192
DOI
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Peer Reviewed
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[Presentation] Continuous measurements of methane flux at a larch forest by micrometeorological and chamber techniques2013
Author(s)
Ueyama, M., Takai, Y., Takeuchi, R. Takahashi, Y., Ide, R., Ataka, M., Takahashi, K., and Kosugi, Y.
Organizer
Joint conference of 11th AsiaFlux international workshop
Place of Presentation
韓国ソウル市
Related Report
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[Presentation] Continuous measurement of Methane flux at a larch forest by micrometeorological and chamber techniques.2013
Author(s)
Ueyama, M., Takai, Y., Takeuchi, R., Takahashi, Y., Ide, R., Ataka, M., Takahashi, K. and Kosugi, Y.
Organizer
CH4 workshop
Place of Presentation
アラスカ州フェアバンクス市
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[Presentation] A challenge to long-term measurement of methane flux over a forest canopy with a relaxed eddy accumulation method2012
Author(s)
Sakabe, A., Kosugi, Y., Hamotani, K., Ueyama, M., Takahashi, K., Itoh, M., Okumi, C.
Organizer
FLUXNET CH4 and N2O workshop
Place of Presentation
Hyytiala, Finland
Related Report
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[Presentation] Comparisons of CH4 fluxes observed with multiple techniques over2012
Author(s)
Iwata, H., Sakabe, A., Harazono, Y., Kosugi, Y., Ueyama, M., Takahashi, K., Makita, N., Nagano, H.
Organizer
FLUXNET CH4 and N2O workshop
Place of Presentation
Hyytiala, Finland
Related Report
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[Presentation] .Continuous measurement of methane flux at a larch forest by the relaxed eddy accumulation method with a tunable diode laser spectrometer2012
Author(s)
Ueyama, M., Takai, Y., Takahashi, Y., Hamotani, K., Kosugi, Y., Takahashi, K
Organizer
The 55th Symposium of the International Association for Vegetation Science
Place of Presentation
Mokpo, Korea
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