Analysis of ecosystem function of taiga in eastern Siberia

2012 Fiscal Year Final Research Report

• Project/Area Number: 21403011
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Geochemistry/Astrochemistry
• Research Institution: Hokkaido University
• Principal Investigator: SUGIMOTO Atsuko 北海道大学, 大学院・地球環境科学研究院, 教授 (50235892)
• Co-Investigator(Kenkyū-buntansha): IRINO Tomohisa 北海道大学, 大学院・地球環境科学研究院, 助教 (70332476) ; OHOTE Nobuhito 東京大学, 農学生命科学研究科, 准教授 (10233199) ; TOKUCHI Naoko 京都大学, フィールド科学教育研究センター, 准教授 (60237071) ; IWAHANA Go 北海道大学, 大学院・地球環境科学研究院, 特任助教 (70431327) ; KODAMA Yuuji 国立極地研究所, 北極観測コンソーシアム 事務局, 特任准教授 (70186708) ; YAMASHITA Yohei 北海道大学, 大学院・地球環境科学研究院, 准教授 (50432224) ; ISHII Yoshiyuki 北海道大学, 低温科学研究所, 助教 (40222955)
• Co-Investigator(Renkei-kenkyūsha): OHOTA Takeshi 名古屋大学, 生命農学研究科, 教授 (20152142) ; UZUKI Rikie 独立行政法人海洋研究開発機構, 地球環境フロンティア研究センター, サブリーダー (10241788) ; YONENOBU Hitoshi 鳴門教育大学, 大学院・学校教育研究科, 助教 (20274277)
• Project Period (FY): 2009 – 2012
• Keywords: 永久凍土 / 北方林 / タイガ / ツンドラ / 水循環 / 炭素循環 / シベリア / 安定 同位体

Research Abstract

Field observations were carried out on water, carbon, and nitrogen cycles in taiga and taiga-tundra boundary in eastern Siberia. Soil moisture water equivalent at taiga forest study site was reconstructed for pas 100 years from tree-ring 13C of larch. Our observational results showed that the wet condition in 2006-2007 was extreme event, and runoff from the region to Lena river was generated for a whole year during this period. N dynamics was also observed in larch forest. Soil inorganic N pool size showed large seasonality depending on the soil temperature.

Research Products

• [Journal Article] Reconstruction of summer Palmer Drought Severity Index from δ13C of larch tree rings in East Siberia (2013)
  • Author(s): Tei, S., Sugimoto, A., Yonenobu, H., Hoshino, Y., Maximov, T
  • Journal Title: Quaternary International Volume: 290-291 Pages: 275-281
  • URL: http://dx.doi.org/10.1016/j.quaint.2012.06.040
• [Journal Article] Nitrogen availability in the taiga forest ecosystem of northeastern Siberia (2013)
  • Author(s): Popova A., Tokuchi N., Ohte N., Ueda U. M., Osaka K., Maximov T., Sugimoto A
  • Journal Title: Soil science and plant nutrition Volume: (in press)
  • DOI: DOI:10.1080/00380768.2013.772495
• [Journal Article] Factors controlling diurnal variation in the isotopic composition of atmospheric water vapour observed in the taiga, eastern Siberia
  • Author(s): Ueta, A., Sugimoto, A., Iijima, Y., Yabuki, H., Maximov,T., Velivetskaya, T., and Ignatiev, A
  • Journal Title: Hydrological Processes Volume: (in press)
  • DOI: doi:10.1002/hyp.9361
• [Journal Article] Contribution of transpiration to the atmospheric moisture in Eastern Siberia estimated with isotopic composition of water vapor
  • Author(s): Ueta, A., Sugimoto, A., Iijima, Y., Yabuki, H., Maximov, T.C
  • Journal Title: Ecohydrology (accepted)
• [Presentation] Vegetation growth and methane emission at taiga-tundra boundary ecosystem in eastern Siberia (2013)
  • Author(s): Sugimoto, A., Shingubara, R. Bragin I., Iwahana, G., Nakamura,M., Tei,. S.,Liang,M., Takano, S., Pedrov, R., Maximom T.
  • Organizer: Third International Symposium on the Arctic Research (ISAR-3)
  • Place of Presentation: 日本未来科学館
  • Year and Date: 2013-01-16
• [Presentation] Dynamics and larch uptake of nitrogen in the north eastern Siberia taiga forest Application of stable isotoperatios of C and N to carbon assimilation and nitrogen utilization of larch in arctic ecosystem of Eastern Siberia (2013)
  • Author(s): Popova A., Tokuchi N., Ohte N., Maximov T., Sugimoto A.
  • Organizer: Third International Symposium on the Arctic Research (ISAR- 3)
  • Place of Presentation: 日本科学未来館
  • Year and Date: 2013-01-16
• [Presentation] 東シベリアタイガ‐ツンドラ境 界域におけるメタンフラックス (2011)
  • Author(s): 新宮原諒,鷹野真也, 岩花剛 ,Maximov, T., 杉本敦子
  • Organizer: 2011年度日本地球化学会第58回年会
  • Place of Presentation: 北海道大学
  • Year and Date: 2011-09-16
• [Presentation] 15N natural abundance and N use by the plants of taiga-tundra boundary ecosystem in Eastern Siberia (2011)
  • Author(s): Liang, M., Sugimoto, A., Maximov, T.C.
  • Organizer: 2011年度日本地球化学会第58回年会
  • Place of Presentation: 北海道大学
  • Year and Date: 2011-09-16
• [Presentation] 東シベリア永久凍土と河川水の水同位体比 (2011)
  • Author(s): 鷹野真也、岩花剛、杉本敦子
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-25
• [Presentation] Nitrogen dynamics in boreal forest ecosystem in Eastern Siberia, Second International Symposium on the Arctic Research (ISAR-2) (2010)
  • Author(s): Popova, A., Sugimoto, A., Tokuchi, N., Ohte, N., Osaka, K., Maximov, T. C.
  • Organizer: Arctic System in a Changing Earth
  • Place of Presentation: 一橋記念講堂
  • Year and Date: 2010-12-08
• [Presentation] Response of vegetation to soil moisture in Eastern Siberia and related change in material cycling (2010)
  • Author(s): Sugimoto, A.
  • Organizer: International Workshop on "C/H2O/Energy balance and climate over boreal and arctic regions with special emphasis on eastern Eurasia
  • Place of Presentation: ワーゲニンゲン大学(オランダ)
  • Year and Date: 2010-11-12
• [Presentation] 年輪の炭素同位体比を用いた東シベリアタイガ林の過去の水分環境と炭素循環の解析 (2010)
  • Author(s): 鄭峻介、杉本敦子、米延仁志、T. C. Maximov
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-26