Large scale evaluation of methane budget over frozen boreal forest by synthesis of field observation, process modeling and satellite remote sensing

2013 Fiscal Year Final Research Report

• Project/Area Number: 23310009
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• 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): ICHII Kazuhito 福島大学, 共生システム理工学類, 准教授 (50345865) ; UEYAMA Masahito 大阪府立大学, 生命環境科学研究科, 助教 (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)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Keywords: メタンフラックス / 永久凍土 / ツンドラ植生 / 衛星リモートセンシング / 広域評価 / 湿地生態系 / 長期連続測定 / クロトウヒ林

Research Abstract

Methane (CH4) is a strong greenhouse gas and wet ecosystem is CH4 source. However, CH4 budget and the mechanism underlying are still unknown at wetlands and boreal forests on permafrost, where CH4 sink and source distributed heterogeneously. We observed CH4 flux at boreal forest in Alaska. We obtained accurate CH4 flux results by applying multiple measurement methods such as eddy covariance, gradient, REA and chambers. Those approved the sink CH4 flux under dry vegetation conditions while an obvious source under wet conditions after rain, and the seasonal variations at the site were clearly determined.
Relationships among environmental factors and CH4 flux were analyzed which were used to improve parameters of a process base model "VISIT". Support vector regression (SVR) was applied to estimate regional scale CO2 flux using satellite remote sensing and measured CO2 flux at 23 tower sites over Alaska, and the reliable results comparing to previous models were obtained.

Research Products

• [Journal Article] Upscaling terrestrial carbon dioxide fluxes in Alaska with satellite remote sensing and support vector regression (2013)
  • Author(s): Ueyama, M., Ichii, K., Iwata H,, Euskirchen, E. S., Zona, D., Rocha, A. V., Harazono,Y., Imam, C., Nakai, T. and Oechel, W. C.
  • Journal Title: J. Gs. Res. Biogeosciences Volume: 118
  • DOI: 10.1002/jgrg.20095
  • Peer Reviewed
• [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: Agric. Forest Meteorol. Volume: 178-179 Pages: 183-193
  • Peer Reviewed
• [Journal Article] Variations in fraction of absorbed photosynthetically active radiation and comparisons with MODIS data in burned black spruce forests of interior Alaska (2013)
  • Author(s): Iwata H,, Ueyama, M., Iwama, C. and Harazono,Y.
  • Journal Title: Polar Science Volume: 7 Pages: 113-124
  • Peer Reviewed
• [Journal Article] Growing season and spatial variations of carbon fluxes of arctic and boreal ecosystems in Alaska (2013)
  • Author(s): Ueyama, M., Iwata H,, Harazono,Y., Euskirchen, E. S., Oechel, W. C., and Zona, D.
  • Journal Title: Ecological Applications Volume: (in press)
  • Peer Reviewed
• [Journal Article] Permafrost thaw affects boreal deciduous plant transpiration throught increased soil water, deeper thaw, and warmer soils (2013)
  • Author(s): Cable, J. M., Ogle, K., Bolton, W. R., Bentley, L. P., Romanovsky, V., Iwata H,, Harazono,Y., and Welker, J.
  • Journal Title: Ecohydrology Volume: (accepted)
  • Peer Reviewed
• [Journal Article] Evaluation if spatially explicit emission scenario of land-use change and biomass burning using a process based biogeochemical model (2013)
  • Author(s): Kato E., Kinoshita T., Ito A., Kawamiya M. & Yamagata T.
  • Journal Title: Journal of Land Use Science Volume: 8 Pages: 104-122
  • Peer Reviewed
• [Journal Article] Detection and attribution of global change impact on a tower- observed ecosystem carbon budget : a critical appraisal (2012)
  • Author(s): Ito A
  • Journal Title: Environmental Research Letters Volume: 7
  • DOI: 10.1088/1748-9326/7/1/014013
  • Peer Reviewed
• [Journal Article] Use and uncertainty evaluation of a process-based model for assessing the methane budget of global terrestrial ecosystems (2012)
  • Author(s): Ito A. and Inatomi M.
  • Journal Title: Biogeosciences Volume: 9 Pages: 759-773
  • Peer Reviewed
• [Journal Article] Influences of various calculation options on heat, water and carbon fluxes determined by open- and closed-path eddy covariance methods (2012)
  • Author(s): Ueyama, M., Hirata, R., Mano, M., Hamotani, K., Harazono,Y., Hirano, T., Miyata, A., Takagi, K., and Takahashi, Y.
  • Journal Title: Tellus Volume: 64B Pages: 19048
  • Peer Reviewed
• [Journal Article] Sensitivity and offset changes of a fast-response open-path infrared gas analyzer during long-term observations in an Arctic environment (2012)
  • Author(s): Iwata H., Harazono,Y., and Ueyama, M.
  • Journal Title: J. Agric. Meteorol. Volume: 68 Pages: 175-181
  • Peer Reviewed
• [Journal Article] The role of permafrost on water exchange of a black spruce forest in Interior Alaska (2012)
  • Author(s): Iwata H., Harazono,Y., and Ueyama, M.
  • Journal Title: Agric. Forest Meteorol Volume: 161 Pages: 107-115
  • 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: Theor. Appl. Climatol. Volume: 109 Pages: 461-472
  • Peer Reviewed
• [Journal Article] Measurement of methane flux over an evergreen coniferous forest canopy using a relaxed eddy accumulation system with tunable diode laser spectroscopy detection (2012)
  • Author(s): Sakabe, A., Hamotani, K., Kosugi, Y., Ueyama, M., Takahashi, K., Kanazawa, A., and Itoh, M.
  • Journal Title: Theor. Appl. Climatol. Volume: 109 Pages: 39-49
  • Peer Reviewed
• [Journal Article] Climatic physical snowpack properties for large-scale modeling examined by observations and a physical model (2012)
  • Author(s): Saito, K., Yamaguchi, S., Iwata H,, Harazono,Y., Kosugi, K., Lehning, M., and Shulski, M.
  • Journal Title: Polar Science Volume: 6 Pages: 79-95
  • Peer Reviewed
• [Journal Article] Quick recovery of carbon dioxide exchanges in a burned black spruce forest in interior Alaska (2011)
  • Author(s): Iwata H., Ueyama, M., Harazono,Y., Tsuyuzaki, S., Kondo, M., and Uchida, M.
  • Journal Title: SOLA Volume: 7 Pages: 105-108
  • Peer Reviewed
• [Journal Article] The sensitivity of carbon sequestration to harvesting and climate conditions in a temperate cypress forest : Observations and modeling (2011)
  • Author(s): Ueyama, M., Kai, A., Ichii, K., Hamotani, K., Kosugi, Y., and Monji, N.
  • Journal Title: Ecol. Modelling Volume: 222 Pages: 3216-3225
  • Peer Reviewed
• [Journal Article] Importance of mixing ratio for a long-term CO_2 flux measurement with a closed-path system (2011)
  • Author(s): Nakai, T., Iwata H., and Harazono,Y.
  • Journal Title: Tellus Volume: 63B Pages: 302-308
  • Peer Reviewed
• [Journal Article] Nonlinear controls on evapotranspiration in arctic coastal wetlands (2011)
  • Author(s): Liljedahl1, A. K., L. D. Hinzman, Harazono,Y., D. Zona, C. E. Tweedie, R. D., Hollister, R. Engstrom, and W. C. Oechel
  • Journal Title: Biogeosciences Volume: 8 Pages: 3375-3389
  • Peer Reviewed
• [Journal Article] A year-round flux observation at an area burned by wildfire in Interior Alaska (2011)
  • Author(s): Iwata H,, Ueyama, M., and Harazono,Y.
  • Journal Title: AsiaFlux Newsletter Volume: 32 Pages: 13-18
• [Journal Article] A historical meta-analysis of global terrestrial net primary productivity : Are estimates converging? (2011)
  • Author(s): Ito A.
  • Journal Title: Global Change Biology Volume: 17 Pages: 3161-3175
  • Peer Reviewed
• [Journal Article] Satellite-based modeling of the carbon fluxes in mature black spruce forests in Alaska : a synthesis of the eddy covariance data and satellite remote sensing data (2010)
  • Author(s): Ueyama, M., Harazono,Y and Ichii, K.
  • Journal Title: Earth Interactions
  • DOI: 10.1175/2010EI319.1
  • Peer Reviewed
• [Journal Article] Influence of Source/Sink Distributions on Flux-Gradient Relationships in the Roughness Sublayer Over an Open Forest Canopy Under Unstable Conditions (2010)
  • Author(s): Iwata H,, Y. Harazono, and M. Ueyama.
  • Journal Title: Boundary-Layer Meteorol Volume: 136 Pages: 391-405
  • Peer Reviewed
• [Journal Article] Remote sensing of tundra ecosystem productivity and light use efficiency under varying temperature and moisture conditions (2010)
  • Author(s): Huemmrich, K.F., J.A. Gamon, C.E. Tweedie, S.F. Oberbauer, G. Kinoshita, S. Houston, A. Kuchy, R.D. Hollister, H.Kwon, M.Mano, Y. Harazono, P.J. Webber and W.C. Oechel.
  • Journal Title: Remort Sens Environ
  • DOI: 10.1016/J.rse.2009.10.003
  • Peer Reviewed
• [Journal Article] Multi-model analysis of terrestrial carbon cycles in Japan : reducing uncertainties in model outputs among different terrestrial biosphere models using flux observations (2010)
  • Author(s): Ichii, K., Suzuki, T., Kato, T., Ito A., Hajima, T., Ueyama, M., Sasai, T., Hirata, R., Saigusa, N., Ohtani, Y. and Takagi, K.
  • Journal Title: Biogeosciences Volume: 7 Pages: 2061-2080
  • Peer Reviewed
• [Journal Article] Applications of MODIS-visible bands index, greenery ratio to estimate CO_2 budget of a rice paddy in Japan (2009)
  • Author(s): Harazono,Y., K. Chikamoto, S. Kikkawa, T. Iwata, N. Nishida, M. Ueyama, Y. Kitaya, M. Mano, M. and A. Miyata
  • Journal Title: J.Agric.Meteorl. Volume: 65 Pages: 365-374
  • Peer Reviewed
• [Presentation] Potentiality of ozone production over sub-Arctic boreal forest in Alaska during thawing period (2013)
  • Author(s): Nagano, H., Y. Harazono, H. Iwata
  • Organizer: AGU
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20131209-13
• [Presentation] Simulating carbon and water fluxes at Arctic and boreal ecosystems in Alaska by optimizing the modified BIOME-BGC with eddy covariance data (2013)
  • Author(s): Ueyama, M., Kondo, M., Ichii, K., Iwata, H., Euskirchen, E. S., Zona, D., Rocha, A. V., Harazono, Y., Nakai, T. and Oechel, W. C.
  • Organizer: AGU
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20131209-13
• [Presentation] Empirical upscaling of CO2 balance over Arctic ecosystems in Alaska (2013)
  • Author(s): Ueyama, Masahito, Ichii, K., Iwata, H., Nakai, T. and Y. Harazono
  • Organizer: 日本気象学会
  • Place of Presentation: 仙台市
  • Year and Date: 20131112-15
• [Presentation] Workshop Report : Evaluation of Methane exchange in the Arctic and sub-Arctic Terrestrial Ecosystem (2013)
  • Author(s): Harazono, Y., Katey W. Anthony, Hirohiko Nagano, K. Ichii, and M. Ueyama
  • Organizer: 第4回極域科学シンポジウム, 国立極地研
  • Place of Presentation: 立川市
  • Year and Date: 20131112-15
• [Presentation] Eddy covariance observation of methane exchange in a boreal and a temperate forest ecosystems (2013)
  • Author(s): Iwata, Hiroki, Y. Harazono, Y. Kosugi, M. Ueyama, M. Mano, K. Ono, A. Sakabe, H. Nagano, K. Takahashi, and A. Miyata
  • Organizer: Synthesis Workshop on Carbon Budget and Forest Ecosystem in Asian Monitoring Network
  • Place of Presentation: Takayama
  • Year and Date: 20131024-26
• [Presentation] Importance of long-term and ground truth observations on the regional carbon budget evaluation by Satellite remote sensing (2013)
  • Author(s): Harazono, Y., H. Iwata, M. Ueyama,M. Otsuki, T. Iwata and H. Nagano
  • Organizer: JpGU meeting-2013
  • Place of Presentation: Makuhari, Chiba
  • Year and Date: 20130521-24
• [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 (2013)
  • 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: 日本農業気象学会
  • Place of Presentation: 北大
  • Year and Date: 20130317-20
• [Presentation] Increase of surface energy fluxes due to warming climate in Alaska based on upscaling of eddy covariance measurements (2012)
  • Author(s): Ueyama, M., K. Ichii, H. Iwata, E. Euskirchen , D. Zona, A. V. Rocha, Y. Harazono, , C. Iwma, T. Nakai, W. C. Oechel
  • Organizer: AGU
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20121203-07
• [Presentation] Comparison of methane flux observed with a relaxed eddy accumulation method and chamber method in an Alaskan black spruce forest (2012)
  • Author(s): Sakabe, Ayaka, H. Iwata, Y. Kosugi, H. Nagano, Y. Harazono, N. Makita, M. Ueyama, and K. Takahashi
  • Organizer: BVOC gas workshop
  • Place of Presentation: at Okinawa, Japan
  • Year and Date: 20121121-22
• [Presentation] Comparisons of CH4 fluxes observed with multiple techniques over an Alaskan black spruce forest underlain by permafrost (2012)
  • Author(s): Iwata, Hiroki, A. Sakabe, Y. Harazono, Y. Kosugi, M. Ueyama, K. Takahashi, N. Makita, and H. Nagano
  • Organizer: FLUXNET CH4 and N2O workshop
  • Place of Presentation: at Hyytiala, Finland
  • Year and Date: 20120902-07
• [Presentation] クローズドパスタイプとオープンパスタイプのメタン計を用いてクロトウヒ林上で測定した渦相関フラックスの比較 (2012)
  • Author(s): 岩田拓記, 原薗芳信, 小杉緑子, 植山雅仁, 高橋けんし, 坂部綾香
  • Organizer: 日本農業気象学会
  • Place of Presentation: 大阪府大
  • Year and Date: 20120313-16
• [Presentation] チャンバーフラックス測定における水蒸気希釈効果の補正, 分析計の進歩は何をもたらすか? (2012)
  • Author(s): 原薗芳信・岩田拓記・中井太郎・高橋けんし・植山雅仁・坂部綾香・小杉緑子
  • Organizer: 日本農業気象学会
  • Place of Presentation: 大阪府大
  • Year and Date: 20120313-16
• [Presentation] Seasonal variation in fraction of absorbed photosynthetically active radiation and vegetation properties in burned forests in Interior Alaska (2011)
  • Author(s): Iwata, H., Harazono, Y., Iwama, C., and Ueyama, M.
  • Organizer: AGU
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20111205-09
• [Presentation] Variation in sink and source level of methane (CH_4 ) at black spruce forest on permafrost in interior Alaska (2011)
  • Author(s): Harazono, Y., Iwata, H. , T. Nakai, A. Sakabe, M. Ueyama, and Y.Kosugi
  • Organizer: USA, AGU
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20111205-09
• [Presentation] Response of Methane Exchange to Soil Moisture Condition in a Black Spruce Ecosystem Over Permafrost in Interior Alaska (2011)
  • Author(s): Iwata, H., Harazono, Y., and Ueyama, M.
  • Organizer: Arctic Science Summit
  • Place of Presentation: Seoul
  • Year and Date: 20110328-31
• [Presentation] Contribution of spring photosynthesis on the annual CO_2 budget of black spruce forest (2011)
  • Author(s): Harazono,Y., H. Iwata, Yongwon Kim,and M. Ueyama
  • Organizer: ASSW-2011
  • Place of Presentation: Seoul
  • Year and Date: 20110328-31
• [Presentation] Vegetation recovery, changes in fluxes and micrometeorology after wildfire of a black spruce forest on permafrost in Alaska (2011)
  • Author(s): HARAZONO,Y. Hiroki IWATA, M. UEYAMA, S.TSUYUZAKI, M. UCHIDA, M.KONDO, Y. TAKAHASHI, and M. UTSUMI
  • Organizer: ISAM 2011
  • Place of Presentation: Kagoshima Univ. Japan
  • Year and Date: 20110316-18
• [Presentation] 北方林炭素収支の広域化における森林火災の重要性 (2011)
  • Author(s): 植山雅仁・市井和仁・岩田拓記・原薗芳信
  • Organizer: 日本農業気象学会
  • Place of Presentation: 鹿児島
  • Year and Date: 20110316-18
• [Remarks] Alaska 大学 International Arctic Research Center の Web-site 内に, UAF North Campus Site Data Chart として, 観測データの準リアルタイム表示をしている. 日本語表示あり.
  • URL: http://www.iarc.uaf.edu/wrmet/data
• [Remarks] 科研費研究の成果公開と Alaska 大学研究者との研究交流を目的として実施したワークショップを同 web-site 内に公開している.
  • URL: http://www.iarc.uaf.edu/en/workshops/2013/ch4