Observation of methane budget and establish of the regional database for Arctic warming studies

• Project/Area Number: 26281012
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Osaka Prefecture University
• Principal Investigator: Harazono Yoshinobu 大阪府立大学, 生命環境科学研究科(系), 客員研究員 (90137240)
• Co-Investigator(Kenkyū-buntansha): 岩田 拓記 信州大学, 理学部, 助教 (10466659) ; 植山 雅仁 大阪府立大学, 生命環境科学研究科(系), 准教授 (60508373)
• Co-Investigator(Renkei-kenkyūsha): ITO Akihiko 国立環境研究所, 地球環境研究センター, 主任研究員 (70344273) ; ICHII Kazuhito 千葉大学, 環境リモートセンシング研究センター, 教授 (50345865)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000); Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2015: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000); Fiscal Year 2014: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
• Keywords: メタン収支 / 永久凍土 / データベース / 広域評価 / クロトウヒ林 / 炭素収支 / 渦相関法 / チャンバフラックス / チャンバ / メタン / クロトウヒ植生 / 品質制御 / グランドツルース計測 / メタンフラックス / タイガ / ツンドラ植生 / 温室効果 / 衛星リモートセンシング

Outline of Final Research Achievements

Arctic warming has been affecting mid-latitude climate. Arctic warming progresses the degradation of tundra and permafrost, that increase methane (CH4) emission, resulting in accelerating the warming. In this study, we observed CH4 exchange at poorly drained black spruce forest in Alaska applying micrometeology techniques and chambers, to reveal the processes of CH4 exchange.
Obtained data have been compiled as long-term high quality dataset and opened for scientific users on global change syudies. We also archived referent data from foreign researchers for a global scale database. Based on the data, the parameters of the carbon balance model were improved, and providing better CH4 budget evaluation globaly. Observed results showed that understory of black spruce forest showed large CH4 absorption during drought, while daily CH4 budget changed between sink and source according to soil water content. Results may contribute to improving the accuracy of climate model prediction.

Research Products

• [Int'l Joint Research] IARC/UAF(米国)
• [Journal Article] Evaluating the relationship between wildfire extent and nitrogen dry deposition in a boreal forest in interior Alaska (2017)
  • Author(s): Nagano, H. and Iwata, H.
  • Journal Title: Polar Science Volume: 印刷中
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] A multi-scale comparison of modeled and observed seasonal methane emissions in northern wetlands, (2016)
  • Author(s): Xu, X., Riley, W. J., Koven, C. D., Billesbach, D. P., Chang, R. Y.-W., Commane, R., Euskirchen, E. S., Hartery, S., Harazono, Y., Iwata, H., McDonald, K. C., Miller, C. E., Oechel, W. C., Poulter, B., Raz-Yaseef, N., Sweeney, C., Torn, M., Wofsy, S. C., Zhang, Z., and Zona D.
  • Journal Title: Biogeosciences, Volume: 13 Pages: 5043-5056
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Optimization of a biochemical model with eddy covariance measurements in black spruce forests of Alaska for estimating CO2 fertilization effects (2016)
  • Author(s): Ueyama, M., Tahara, N., Iwata, H., Euskirchen, E. S., Ikawa, H., Kobayashi, H., Nagano, H., Nakai, T., and Harazono, Y.
  • Journal Title: Agricultural and Forest Meteorology Volume: 222 Pages: 98-111
  • DOI: 10.1016/j.agrformet.2016.03.007
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Latitudinal gradient of spruce forest understory and tundra phenology in Alaska as observed from satellite and ground-based data (2016)
  • Author(s): Kobayashi H., Yunus A.P., Nagai S., Sugiura K., Kim Y., Dam B.V., Nagano H., Zona D., Harazono Y., Bret-Harte M.S., Ichii K., Ikawa H., Iwata H., Oechel W.C., Ueyama M., Suzuki, R.
  • Journal Title: Remote Sensing of Environment Volume: 177 Pages: 160-170
  • DOI: 10.1016/j.rse.2016.02.020
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Methane exchange in a poorly-drained black spruce forest over permafrost observed using the eddy covariance technique (2015)
  • Author(s): H. Iwata, Y. Harazono, M. Ueyama, A. Sakabe, H. Nagano, Y. Kosugi, K. Takahashi, and Y. Kim
  • Journal Title: Agri. Forest Meteorol. Volume: 214-215 Pages: 157-168
  • DOI: 10.1016/j.agrformet.2015.08.252
  • NAID: 120007101408
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Understory CO2, sensible heat, and latent heat fluxes in a black spruce forest in interior Alaska (2015)
  • Author(s): Ikawa H, T. Nakai, R. C Busey, Y. Kim, H. Kobayashi, S. Nagai, M. Ueyama, K. Saito, H. Nagano, R. Suzuki, L. Hinzman
  • Journal Title: Agricultural and Forest Meteorology Volume: 214-215 Pages: 80-90
  • DOI: 10.1016/j.agrformet.2015.08.247
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Temperature regimes and turbulent heat fluxes across a heterogeneous canopy in an Alaskan boreal forest (2015)
  • Author(s): Derek Starkenburg, Gilberto J. Fochesatto, Jordi Cristóbal, Anupma Prakash, Rudiger Gens, Joseph G. Alfieri, Hirohiko Nagano, Yoshinobu Harazono, Hiroki Iwata, and Douglas L. Kan
  • Journal Title: Journal of Geophysical Research: Atmospheres Volume: 99 Issue: 4 Pages: 1-13
  • DOI: 10.1002/2014jd022338
  • Peer Reviewed / Open Access
• [Journal Article] Effects of water vapor dilution on trace gas flux, and practical correction methods, (2015)
  • Author(s): Yoshinobu HARAZONO, Hiroki IWATA, Ayaka SAKABE, Masahito UEYAMA, Kenshi TAKAHASHI, Hirohiko NAGANO, Taro NAKAI and Yoshiko KOSUGI
  • Journal Title: Journal of Agricultural Meteorology Volume: 71 Pages: 55-66
  • NAID: 130005075874
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Change in surface energy balance in Alaska due to fire and spring warming, based on upscaling eddy covariance measurements (2014)
  • Author(s): Masahito Ueyama, Kazuhito Ichii, Hiroki Iwata, Eugénie S. Euskirchen, Donatella Zona, Adrian V. Rocha, Yoshinobu Harazono, Chie Iwama, Taro Nakai, and Walter C. Oeche
  • Journal Title: Journal of Geophysical Research: Biogeosciences Volume: 99 Issue: 10 Pages: 1-23
  • DOI: 10.1002/2014jg002717
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Does summer warming reduce black spruce productivity in interior Alaska? (2014)
  • Author(s): Masahito Ueyama, Shinya Kudo, Chie Iwama, Hirohiko Nagano, Hideki Kobayashi, Yoshinobu Harazono, Kenji Yoshikawa
  • Journal Title: J of Forest Research Volume: 99 Issue: 1 Pages: 1-8
  • DOI: 10.1007/s10310-014-0448-z
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Autumn warming reduces the CO2 sink of a black spruce forest in interior Alaska based on a nine-year eddy covariance measurement. (2013)
  • Author(s): Ueyama, Masahito, Iwata, H., and Harazono, Y
  • Journal Title: Global Change Biol. Volume: - Issue: 4 Pages: 1-13
  • DOI: 10.1111/gcb.12434
  • Peer Reviewed / Open Access
• [Presentation] 凍土上のクロトウヒ植生におけるメタンフラックス，チャンバによる局所的差異 (2017)
  • Author(s): 原薗芳信，義川晃太，植山雅仁（大阪府大），岩田拓記（信州大），永野博彦（千葉大），坂部綾香，小杉緑子（京大）
  • Organizer: 日本農業気象学会2017年度大会
  • Place of Presentation: 十和田市北里大学獣医学部
  • Year and Date: 2017-03-27
• [Presentation] 湿原メタンフラックスの観測データを用いた陸域生態系モデルの最適化 (2017)
  • Author(s): 植山雅仁・二口雄介・矢崎友嗣・平野高司・岩田拓記・原薗芳信
  • Organizer: 日本農業気象学会2017年度大会
  • Place of Presentation: 十和田市北里大学獣医学部
  • Year and Date: 2017-03-27
• [Presentation] 北方湿原におけるメタンフラックスの連続観測とモデリング. (2017)
  • Author(s): 二口雄介・植山雅仁・矢崎友嗣・平野高司・小南靖弘・原薗芳信・五十嵐康則・岩田拓記
  • Organizer: 日本農業気象学会2017年度大会
  • Place of Presentation: 十和田市北里大学獣医学部
  • Year and Date: 2017-03-27
• [Presentation] Observations and modeling of methane flux in northern wetlands. (2016)
  • Author(s): Futakuchi, Y., Ueyama, M., Matsumoto, Y., Yazaki, T., Hirano, T., Kominami, Y., Harazono, Y., Igarashi, Y.
  • Organizer: AGU 2016 Fall meeting,
  • Place of Presentation: San Francisco USA,
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Model Inter-comparison of gross primary productivity and evapotranspiration in Alaska. (2016)
  • Author(s): Lee, J., Ryu, Y., Jiang, C., Ueyama, M., Ichii, K., Lee, Y. K.
  • Organizer: AGU 2016 Fall meeting,
  • Place of Presentation: San Francisco USA,
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Response of CO2 and CH4 emission from a poorly-drained black spruce forest over permafrost in an Interior Alaska. (2016)
  • Author(s): Igarashi, Y., Iwata, H., Ueyama, M., Hiyama, T., Futakuchi, Y., Matsumoto, Y., Harazono,
  • Organizer: The Seventh Symposium on Polar Science,
  • Place of Presentation: NIPR, Tachikawa, Tokyo
  • Year and Date: 2016-11-29
  • Int'l Joint Research
• [Presentation] Successional change in photosynthetic capacities after wildfires across the North American boreal forests. (2016)
  • Author(s): Tahara, N., Ueyama, M.
  • Organizer: International Russian-Japanese conference of young polar scientists,
  • Place of Presentation: Moscow Russian Federation,ロシア
  • Year and Date: 2016-10-11
  • Int'l Joint Research
• [Presentation] Carbon and water exchange studies of black spruce forests in Interior Alaska. (2016)
  • Author(s): Iwata, H.
  • Organizer: International Russian-Japanese conference of young polar scientists,
  • Place of Presentation: Moscow Russian Federation,ロシア
  • Year and Date: 2016-10-11
  • Int'l Joint Research
• [Presentation] レーザー分光計を用いた陸域生態系におけるメタンフラックスの連続測定 (2016)
  • Author(s): 植山雅仁・義川滉太・二口雄介・高橋善幸・高木健太郎・小南裕志・平野高司・矢崎友嗣・岩田拓記・原薗芳信
  • Organizer: 2016年度 日本地球化学会年会
  • Place of Presentation: 大阪市立大学杉本キャンパス,大阪市
  • Year and Date: 2016-09-13
  • Invited
• [Presentation] 温帯高層湿原におけるメタンフラックスの連続観測とモデリング (2016)
  • Author(s): 二口雄介・植山雅仁・矢崎友嗣・平野高司・小南靖弘
  • Organizer: LEAPS-Japan研究集会2016
  • Place of Presentation: 名古屋大学、 名古屋市
  • Year and Date: 2016-09-09
• [Presentation] Greenhouse gas fluxes at boreal and Arctic wetland in Alaska. (2016)
  • Author(s): Ueyama, M., Iwata, H., Nagano, H., Ichii, K., and Harazono, Y.
  • Organizer: 15th International PEAT Congress 2016
  • Place of Presentation: Kuching, Sarawak, Malaysia
  • Year and Date: 2016-08-15
  • Int'l Joint Research / Invited
• [Presentation] Understory CO2, sensible heat and latent heat fluxes in a black spruce forest in interior Alaska. (2016)
  • Author(s): Ikawa, H., Nakai, T., Busey, R. C., Kim, Y., Kobayashi, H., Nagai, S., Ueyama, M., Saito, K., Nagano, H., and Hinzman, L.
  • Organizer: Goldschmidt Conference 2016
  • Place of Presentation: Pacifico Yokohama, Japan
  • Year and Date: 2016-06-26
  • Int'l Joint Research
• [Presentation] メタンフラックスの微気象学的観測手法の比較と北方林におけるメタン交換 (2016)
  • Author(s): 岩田拓記
  • Organizer: 信州大学テニュアトラック教員研究成果発表会
  • Place of Presentation: 信州大学（松本市）
  • Year and Date: 2016-03-26
• [Presentation] 生態系スケールの連続観測からみた森林と湿原のメタン収支 (2016)
  • Author(s): 植山雅仁
  • Organizer: 信州大学テニュアトラック教員研究成果発表会
  • Place of Presentation: 信州大学（松本市）
  • Year and Date: 2016-03-26
  • Invited
• [Presentation] 北方林における森林火災からの遷移に伴う植物生理特性の変動 (2016)
  • Author(s): 田原成美・植山雅仁・岩田拓記・永野博彦・原薗芳信・市井和仁・伊川浩樹・Eugenie S. Euskirchen
  • Organizer: 日本農業気象学会2016全国大会
  • Place of Presentation: 岡山大学（岡山市）
  • Year and Date: 2016-03-14
• [Presentation] Satellite and ground-based monitoring of terrestrial ecosystem structure and phenology in Arctic and sub-Arctic region (2016)
  • Author(s): Kobayashi, H., Yang, W., Yunus, A., Nagai, S., Ono, Y., Sugiura, K., Nasahara, K., Kim, Y., Van Dam, B., Nagano, H., Zona, D., Harazono, Y., Bret-Harte, M. S., Ichii, K., Ikawa, H., Iwata, H., Oechel, W., Ueyama, M., and Suzuki, R.:
  • Organizer: Arctic Science Summit Week 2016
  • Place of Presentation: IARC/UAF（Fairbanks, AK, USA)
  • Year and Date: 2016-03-12
  • Int'l Joint Research
• [Presentation] Successional change in photosynthetic capacities after wildfires across the North American boreal forests. (2015)
  • Author(s): Tahara, N., Ueyama, M., Iwata, H., Nagano, H., Harazono, Y., and Ichii, K.
  • Organizer: AGU 2015 Fall meeting
  • Place of Presentation: Mosconi 国際会議場 (SanFrancisco, USA)
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] Empirically constrained estimates of Alaskan regional net ecosystem exchange of CO2, 2012-2014. (2015)
  • Author(s): Commane, R., Lindaas, J., Benmergui, J. S., Luus, K. A., Chan, R. Y. –W., Miller, S. M., Henderson, J., Karion, A., Miller, J. B., Sweeney, C., Miller, C. E., Lin, J. C., Oechel, W. C., Zona, D., Euskirchen, E. S, Iwata, H., Ueyama, M., Harazono, Y. 他５名
  • Organizer: AGU 2015 Fall meeting
  • Place of Presentation: Mosconi 国際会議場 (SanFrancisco, USA)
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] Long-term observations and synthesis for evaluating carbon dioxide fluxes over Alaska. (2015)
  • Author(s): Ueyama, M., Iwata, H., Ichii, K., Nagano, H., Harazono, Y., Euskirchen, E. S., Zona, D., Rocha, A. V., Nakai, T. and Oechel, W. C.
  • Organizer: Fourth International Symposium on the Arctic Research,（ISAR-4)
  • Place of Presentation: 富山国際会議場（富山市）
  • Year and Date: 2015-04-27
  • Int'l Joint Research
• [Presentation] Changes in photosynthetic capacities of early successional ecosystems after wildfires in interior Alaska. (2015)
  • Author(s): Tahara, N., Nagano, H., Ueyama, M., Iwata, H., and Harazono, Y.
  • Organizer: Fourth International Symposium on the Arctic Research,（ISAR-4)
  • Place of Presentation: 富山国際会議場（富山市）
  • Year and Date: 2015-04-27
  • Int'l Joint Research
• [Presentation] Methane exchange in a poorly-drained black spruce forest over permafrost observed with the eddy covariance technique. (2015)
  • Author(s): Iwata, H., Harazono, Y., Ueyama, M., Sakabe, A., Nagano, H., Kosugi, Y., Takahashi, K., and Kim, Y.
  • Organizer: Fourth International Symposium on the Arctic Research,（ISAR-4)
  • Place of Presentation: 富山国際会議場（富山市）
  • Year and Date: 2015-04-27
  • Int'l Joint Research
• [Presentation] Regional CO2 uptake estimation applying the light use efficiency model with MODIS and field data to examine wildfire effects in Alaskan boreal forest. (2015)
  • Author(s): Otsuki, M. Iwata, H., Iwata, T., Nagano, H., Harazono, Y., Iwama, C. and Ueyama, M.
  • Organizer: Fourth International Symposium on the Arctic Research,（ISAR-4)
  • Place of Presentation: 富山国際会議場（富山市）
  • Year and Date: 2015-04-27
  • Int'l Joint Research
• [Presentation] Changes in photosynthetic capacities of early successional ecosystem after wildfires in interior Alaska. (2015)
  • Author(s): Tahara, N., Ueyama, M., Nagano, H., Iwata, H., and Harazono, Y.
  • Organizer: Workshop on the ecosystem carbon/water cycling research in the changing climate,
  • Place of Presentation: 科学技術交流センター（つくば市）
  • Year and Date: 2015-04-23
  • Int'l Joint Research
• [Presentation] 内陸アラスカのクロトウヒ林におけるメタン交換測定 (2015)
  • Author(s): 岩田拓記，原薗芳信，永野博彦，Yongwon Kim，小杉緑子，坂部綾香，高橋けんし，宮田明，間野正美，小野圭介，植山雅仁
  • Organizer: 森林水文ワークショップ2015
  • Place of Presentation: 北海道大学（北海道札幌市）
  • Year and Date: 2015-03-29
• [Presentation] 微気象データを用いた植物生理パラメータの逆推定法の開発：アラスカのクロトウヒ林での検討 (2015)
  • Author(s): 植山雅仁・田原成美・岩田拓記・永野博彦・中井太郎・原薗芳信
  • Organizer: 日本農業気象学会全国大会2015
  • Place of Presentation: 文部科学省研究交流センター （茨城県つくば市）
  • Year and Date: 2015-03-16 – 2015-03-20
• [Presentation] 陸域生態系をめぐる温室効果気体とエネルギーの流れ―数理でつなぐスケールの溝 (2015)
  • Author(s): 植山雅仁
  • Organizer: 数理科学談話会
  • Place of Presentation: 信州大学（長野県松本市）
  • Year and Date: 2015-01-23
• [Presentation] Evaluation of the relationship between nitrogen dry deposition and wildfire in a boreal forest of interior Alaska (2014)
  • Author(s): Nagano, Hirohiko, H. Iwata, and Y. Harazono
  • Organizer: AGU-2014 fall meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2014-12-15 – 2014-12-19
• [Presentation] Inverse estimation of parameters for a coupled photosynthesis and stomatal conductance model using eddy covariance measurements at a black spruce forest in Alaska. (2014)
  • Author(s): Ueyama, M., Tahara, N., Iwata, H., Nagano, H., and Harazono, Y.
  • Organizer: AGU-2014 fall meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2014-12-12 – 2014-12-19
• [Presentation] Methane exchange in a poorly-drained black spruce forest over permafrost observed with the eddy covariance technique. (2014)
  • Author(s): Iwata, Hiroki, Y. Harazono, M. Ueyama, A. Sakabe, H. Nagano, Y. Kosugi, K. Takahashi, and Y. Kim
  • Organizer: Arctic Change 2014 conference
  • Place of Presentation: Ottawa, Canada
  • Year and Date: 2014-12-08 – 2014-12-12
• [Presentation] Upscaling CO2, water vapor, and energy fluxes over Alaska using satellite remote sensing. Seminar for Remote Sensing for Carbon Cycle Study in Forest (2014)
  • Author(s): Ueyama, M
  • Organizer: IARC Science Seminar
  • Place of Presentation: Fairbanks USA
  • Year and Date: 2014-09-12
• [Book] 新太陽エネルギー利用ハンドブック」 (2014)
  • Author(s): 原薗芳信
  • Total Pages: 836
  • Publisher: 日本太陽エネルギー学会
• [Remarks] Realtime monitoring, UAF North Campus Site
  • URL: http://monitors.iarc.uaf.edu/uaf-north-campus/
• [Remarks] Meteorologiy and flux data, black spruce forest
  • URL: http://atmenv.envi.osakafu-u.ac.jp/data/uaf_data/
• [Remarks] Real-Time Monitors,
  • URL: http://www4.iarc.uaf.edu:8080/uaf-north-campus/
• [Remarks] Eddy covariance data in Alaska
  • URL: http://atmenv.envi.osakafu-u.ac.jp/data/uaf_data/