High-precision continuous measurements of the methane flux over a forest using a laser spectrometer

2013 Fiscal Year Final Research Report

• Project/Area Number: 23681004
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Environmental dynamic analysis
• 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)
• Project Period (FY): 2011-04-01 – 2014-03-31
• 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

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.

Research Products

• [Journal Article] High-precision measurements of the methane flux over a larch forest based on a hyperbolic relaxed eddy accumulation method using a laser spectrometer (2013)
  • Author(s): Ueyama,M., Takai, Y., Takahashi, Y., Ide, R. Hamotani, K., Kosugi, Y., Takahashi, K. and Saigusa, N
  • Journal Title: Agricultural and Forest Meteorology Volume: 178-179 Pages: 183-193
  • Peer Reviewed
• [Journal Article] Continuous measurement of methane flux over a larch forest using a relaxed eddy accumulation method (2012)
  • Author(s): Ueyama,M., Hamotani, K., Nishimura, W., Takahashi, Y., Saigusa, N., and Ide, R
  • Journal Title: Theoretical and Applied Climatology Volume: 109 Pages: 461-472
  • Peer Reviewed
• [Presentation] 鉛直濃度プロファイルの逆解析による森林メタンフラックスの評価 (2014)
  • Author(s): 植山雅仁・高梨聡・高橋善幸
  • Organizer: 農業気象学会全国大会2014
  • Place of Presentation: 札幌(口頭発表)
  • Year and Date: 20140317-21
• [Presentation] 微気象学的手法を中心とした生態系スケールでのメタン交換の解明 (2014)
  • Author(s): 岩田拓記・原薗芳信・小杉緑子・植山雅仁・坂部綾香・永野博彦・奥見智佳・間野正美・小野圭介・高橋けんし・宮田明
  • Organizer: 農業気象学会全国大会2014
  • Place of Presentation: 札幌(口頭発表)
  • Year and Date: 20140317-21
• [Presentation] レーザー分光器を用いた森林におけるメタン収支の多面的観測研究 (2014)
  • Author(s): 植山雅仁
  • Organizer: 森林生態系炭素収支・リモセンに係わるモニタリング研究集会
  • Place of Presentation: 筑波 (口頭発表)
  • Year and Date: 20140219-20
• [Presentation] Continuous measurements 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: 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)
  • Year and Date: 20130821-24
• [Presentation] レーザー分光計を用いた森林におけるメタンフラックスの多面的観測 (2013)
  • Author(s): 植山雅仁・竹内亮太・高井百合子・高橋善幸・安宅未央子・高橋けんし・小杉緑子・鱧谷憲
  • Organizer: 日本惑星科学連合2013年大会
  • Place of Presentation: 幕張 (口頭発表)
  • Year and Date: 20130519-24
• [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, Fairbanks
  • Place of Presentation: USA (Oral)
  • Year and Date: 2013-09-06
• [Presentation] レーザー分光計を用いた森林におけるメタンフラックスの総合観測 (2013)
  • Author(s): 植山雅仁・竹内亮太・高井百合子・高橋善幸・安宅未央子・高橋けんし・小杉緑子・鱧谷憲
  • Organizer: 森林生態系炭素収支・リモセンに係わるモニタリング研究集会
  • Place of Presentation: 筑波 (口頭発表)
  • Year and Date: 2013-02-05
• [Presentation] Continuous measurement of methane flux at a larch forest by the relaxed eddy accumulation method with a tunable diode laser spectrometer (2012)
  • 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)
  • Year and Date: 20120723-28
• [Presentation] TDLSとREA法を用いた森林におけるメタンフラックスの計測 (2012)
  • Author(s): 高井百合子・植山雅仁・鱧谷憲・高橋善幸・高橋けんし・小杉緑子
  • Organizer: 農業気象学会全国大会2012
  • Place of Presentation: 大阪 (口頭発表)
  • Year and Date: 20120313-17
• [Presentation] Applying tunable diode laser spectroscopy for continuous measurement of methane flux at a forest canopy with a relaxed eddy accumulation method (2011)
  • 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)
  • Year and Date: 20111109-11
• [Remarks] ホームページ 微気象学的手法を用いた森林ー大気間におけるメタン交換の評価
  • URL: http://www.envi.osakafu-u.ac.jp/atmenv/02_Research/FHK/Fuji.html
• [Remarks] 学会セッション企画 日本農業気象学会2014年大会札幌, 2014年3月17～21日オーガナイズドセッション「陸域メタンフラックスの評価のための連携研究に向けて―現状の課題共有の先にある飛躍」オーガナイザー:JapanFlux [平野高司・ 植山雅仁・齊藤誠・平田竜一]
• [Remarks] 学会報告 植山雅仁・平田竜一・齊藤誠(2014)日本 農業気象学会2014年大会オーガナイズドセッションSA :「陸域メタンフラックスの評価のための連携研究に向けて―現状の課題共有の先にある飛躍」,生物と気象, 14巻D-3(掲載予定)