High-precision continuous measurements of the methane flux over a forest using a laser spectrometer
Project/Area Number |
23681004
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Environmental dynamic analysis
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Research Institution | Osaka Prefecture University |
Principal Investigator |
UEYAMA MASAHITO 大阪府立大学, 生命環境科学研究科(系), 助教 (60508373)
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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 |
¥27,950,000 (Direct Cost: ¥21,500,000、Indirect Cost: ¥6,450,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Fiscal Year 2011: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
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Keywords | メタンフラックス / 森林 / 微気象 / チャンバー / レーザー分光計 / メタン / 土壌 / プロファイル / 逆解析 / 環境計測 / 温室効果気体 / 陸域物質循環 / 森林生態系 / 微気象観測 / 簡易渦集積法 |
Research Abstract |
Methane flux was measured over a temperate forest using the micrometeorological and chamber methods. The micrometeorological method has an advantage to quantify spatially representative flux, whereas the chamber methods can be used for understanding processes. More than two-year continuous measurements showed that the forest acted as a methane sink, and the sink was greater in summer than winter. The annual methane sink was 868 mg CH4 m-2 yr-1. The methane fluxes were controlled by soil water content and soil temperature, where increase in soil water content restricted the methane sink whereas increase in soil temperature enhanced the methane sink.
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Report
(4 results)
Research Products
(28 results)
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[Journal Article] High-precision measurements of the methane flux over a larch forest based on a hyperbolic relaxed eddy accumulation method using a laser spectrometer2013
Author(s)
Ueyama,M., Takai, Y., Takahashi, Y., Ide, R. Hamotani, K., Kosugi, Y., Takahashi, K. and Saigusa, N
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Journal Title
Agricultural and Forest Meteorology
Volume: 178-179
Pages: 183-193
Related Report
Peer Reviewed
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[Journal Article] Continuous measurement of methane flux over a larch forest using a relaxed eddy accumulation method2012
Author(s)
Ueyama,M., Hamotani, K., Nishimura, W., Takahashi, Y., Saigusa, N., and Ide, R
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Journal Title
Theoretical and Applied Climatology
Volume: 109
Pages: 461-472
Related Report
Peer Reviewed
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[Presentation] Continuous measurement 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
CH4 workshop, Fairbanks
Place of Presentation
USA (Oral)
Year and Date
2013-09-06
Related Report
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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, 3rd HESSS, and 14th annual meeting of Korean society of agricultural and forest meteorology on"Communicating science to society : coping with climate extremes for resilient ecological-societal systems"
Place of Presentation
Seoul, Korea (Oral)
Related Report
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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
Seoul, Korea
Related Report
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[Presentation] Continuous measurement 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
CH4 workshop
Place of Presentation
Fairbanks, AK, USA
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. and Takahashi, K
Organizer
The 55th Symposium of the International Association for Vegetation Science
Place of Presentation
Mokpo, Korea(Oral)
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. and Takahashi, K.
Organizer
The 55th Symposium of the International Association for Vegetation Science
Place of Presentation
Mokpo, Korea
Related Report
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[Presentation] Applying tunable diode laser spectroscopy for continuous measurement of methane flux at a forest canopy with a relaxed eddy accumulation method2011
Author(s)
Ueyama, M., Takai, Y., Hamotani, K., Takahashi, Y., Takahashi, K., Kosugi, Y.
Organizer
AsiaFlux Workshop 2011-Bridging Ecosystem Science to Services and Stewardship
Place of Presentation
Johor Bahru, Malaysia
Year and Date
2011-11-11
Related Report
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[Presentation] Applying tunable diode laser spectroscopy for continuous measurement of methane flux at a forest canopy with a relaxed eddy accumulation method2011
Author(s)
Ueyama,M., Takai, Y., Hamotani, K., Takahashi, Y., Takahashi, K. and Kosugi, Y
Organizer
AsiaFlux Workshop 2011- Bridging Ecosystem Science to Services and Stewardship
Place of Presentation
Johor Bahru, Malaysia(Oral)
Related Report
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