Reconstruction of greenhouse gases emission from alpine wetland by considering impact of lower atmospheric pressure in high altitude ecosystem

• Project/Area Number: 18710017
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Environmental dynamic analysis
• Research Institution: University of Tsukuba
• Principal Investigator: HIROTA Mitsuru University of Tsukuba, 大学院・生命環境科学研究科, 准教授 (90391151)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,550,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2007: ¥1,200,000 (Direct Cost: ¥1,200,000); Fiscal Year 2006: ¥1,700,000 (Direct Cost: ¥1,700,000)
• Keywords: 地球温暖化 / チベット高原 / 炭素動態 / 温室効果ガス / 生態系純正産 / メタンガス / 高山湿地 / 高山生態系 / 炭素循環 / メタン / 水生植物 / 大気圧

Research Abstract

標高にともなう大気圧変化が生態系からのメタン等の温暖化ガス放出に及ぼす影響を検証するために、大気圧を調整できる大型チャンバーシステムを開発し、このチャンバーシステムによる室内実験と、実際に野外調査をチベット高原の高山草原で行った。本研究によって、長期間の連続低圧環境が維持可能な実験システムの開発に成功した。一方、実際の野外調査では、高山環境下での低気圧がメタン放出に与える影響は明らかに出来なかったが、CO_2に関してはほとんど影響がないことを明らかにした。

Research Products

• [Journal Article] Use of a regression method to partition sources of ecosystem respriration in an alpine meadow. (2009)
  • Author(s): Zhang, P., Tang, Y., Hirota, M.他2名(全5名中3番目に記載)
  • Journal Title: Soil Biology and Biochemistry 41 Pages: 663-670
  • Peer Reviewed
• [Journal Article] Soil organic carbon pools in alpine to nival zones along an altitudinal gradient (4400-5300m) on the Tibetan Plateau (2008)
  • Author(s): Ohtsuka, T., Hirota, M.他7名(全9名中2番目に記載)
  • Journal Title: Polar Science 2 Pages: 277-285
  • NAID: 110007089159
  • Peer Reviewed
• [Journal Article] Soil organic carbon pools in alpine to nival zones along an altitudinal gradient (4400-5300 m) on the Tibetan Plateau (2008)
  • Author(s): Toshiyuki OHTSUKA & Mitsuru HIROTA 他
  • Journal Title: Polar Science 2 Pages: 277-285
  • NAID: 110007089159
  • Peer Reviewed
• [Journal Article] Net primary productivity and spatial distribution of vegetation in an alpine wetland, Qinghai-Tibetan Plateau. (2007)
  • Author(s): Hirota, M.他7名(全8名中1番目に記載)
  • Journal Title: Limnology 8 Pages: 161-170
  • NAID: 10019557571
  • Peer Reviewed
• [Journal Article] Carbon dioxide dynamics and controls in a deep-water wetland on the Qinghai-Tibetan Plateau (2006)
  • Author(s): Hirota, M.他7名(全8名中1番目に記載)
  • Journal Title: Ecosystems 9 Pages: 673-688
  • Peer Reviewed
• [Journal Article] Temperature plays a major role in controlling ecosystem CO_2 exchange in alpine meadow on the Qinghai-Tibetan Plateau. (2006)
  • Author(s): Kato, T., Tang, Y., Gu, (全7名中4番目に掲載)
  • Journal Title: Global Change Biology 12 Pages: 1285-1298
  • Peer Reviewed
• [Presentation] 傾度に伴う生態系CO_2フラックス特性 (2008)
  • Author(s): 廣田充他6名
  • Organizer: 日本生態学会(2008)
  • Place of Presentation: 福岡国際会議場
  • Year and Date: 2008-03-16
• [Presentation] 青海・チベット高山草原における生態系呼吸の分離 (2008)
  • Author(s): 張鵬程・唐艶鴻・廣田充他1名
  • Organizer: 日本生態学会(2008)
  • Place of Presentation: 福岡国際会議場
  • Year and Date: 2008-03-16
• [Presentation] チベット高山草原の標高傾度に伴う生態系CO_2フラックス特性 (2008)
  • Author(s): 廣田充他
  • Organizer: 日本生態学会第55回福岡大会
  • Place of Presentation: 福岡国際会議場(福岡)
  • Year and Date: 2008-03-16
• [Presentation] チべット高山の標高傾度に伴う生態系 C02 フラックス特性 (2008)
  • Author(s): 魔田充・張鵬程・高橋健太・根岸正弥・下野綾子・沈海花・唐艶鴻
  • Organizer: 第 55 回日本生態学会
  • Place of Presentation: 福岡国際会議場
  • Year and Date: 2008-03-16
• [Presentation] Spatial variation of CO_2 fluxes in an alpine meadow on the Qinghai-Tibetan Plateau. (2008)
  • Author(s): Hirota, M.
  • Organizer: A3Foresight Program "Upscaling from plot based carbon data to regional scale: Current status and perspectives (2008)
  • Place of Presentation: Soeul, Korea
  • Year and Date: 2008-02-19
• [Presentation] Grazing increase effects of warming by altering CO_2 and CH_4 fluxes in an alpine wetland on the Qinghai-Tibetan Plateau. (2007)
  • Author(s): Hirota, M.他7名
  • Organizer: Societas Internationalis Limnologiae (SIL) 30th, International Congress (2007)
  • Place of Presentation: Montreal, Canada
  • Year and Date: 2007-08-15
• [Presentation] 青海・チベット高山草原におけるCO_2フラックスの空間変動特性 (2007)
  • Author(s): 廣田充他3名
  • Organizer: 日本生態学会(2007)
  • Place of Presentation: 愛媛大学
  • Year and Date: 2007-03-21
• [Presentation] チベット高山草原の標高傾度に伴うセルロース分解と微小菌類相の関係 (2007)
  • Author(s): 広瀬大・白水貴・廣田充・他4名
  • Organizer: 日本生態学会(2007)
  • Place of Presentation: 愛媛大学
  • Year and Date: 2007-03-21
• [Presentation] Examining CO2 partitioning for an alpine meadow on the Qinghai-Tibetan Plateau. (2006)
  • Author(s): Hirota, M. 他4名
  • Organizer: "Can we estimate daytime ecosystem respiration from nighttime respiration?" 2nd EAFES International Congres (2006)
  • Place of Presentation: Niigata, Japan
  • Year and Date: 2006-03-26