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Highly sensitive analysis of geochemical cycles of nitrous oxide and methane through isotope tracers

Research Project

Project/Area Number 08454164
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 地球化学
Research InstitutionInstitute for Hydrospheric-Atmospheric Sciences, Nagoya University

Principal Investigator

YOSHIDA Naohiro  Institute for Hydrospheric-Atmospheric Sciences, Nagoya University, Associate Professor, 大気水圏科学研究所, 助教授 (60174942)

Co-Investigator(Kenkyū-buntansha) NAKATSUKA Takeshi  The Institute of Low Temperature Science, Hokkaido University, Associate Profess, 低温科学研究所, 助教授 (60242880)
YOSHIOKA Takahito  Institute for Hydrospheric-Atmospheric Sciences, Nagoya University, Assistant Pr, 大気水圏科学研究所, 助手 (50202396)
HAMA Takeo  Institute for Hydrospheric-Atmospheric Sciences, Nagoya University, Assistant Pr, 大気水圏科学研究所, 助手 (30156385)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥7,800,000 (Direct Cost: ¥7,800,000)
Fiscal Year 1997: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1996: ¥5,100,000 (Direct Cost: ¥5,100,000)
KeywordsNitrous oxide / Methane / Nitrogen isotope ratio / Oxygen isotope ratio / Carbon isotope ratio / Hydrogen isotope ratio / Ocean / Atmoshere / 湖沼
Research Abstract

(1) Molecules of low concentration but relatively large amount from atmosphere or atmospheric equilibrated water samples have been analyzed on an mass spectrometer equipped with dual inlet systems, and those of high concentration and small amount, from soil gass for example, have been analyzed on a gas chromatograph/combusion/isotope ratio mass spectrometer. In addition to these system, highly sensitive analytical system has been constructed to determine the isotope ratios of molecules of low concentration and very small amount in the present study.
Carbon isotope ratios in methane dissolved in the sea surface waters and molecular fractions of dissolved organic matters, and the methane production process originated from methylamine are analyzed. Nitrous oxide and methane have been determined for their concentration and isotope ratios and their behavior are analyzed. Source materials of nitrous oxide including organic nitrogen and inorganic nitrogen containing molecules especially nitrate have been determined for its nitrogen and oxygen isotope ratios so that source and sink process of nitrous oxide has been assessed.
Tunable diode laser absorption spectrometer has been calibrated with gas chromatograph systems. Continuous measurement system has been constructed for concentration and flux determinations, and field observation has been started.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (41 results)

All Other

All Publications (41 results)

  • [Publications] Wada, E., N.Yoshida, T.Yoshioka, M.Yoh and Y.Kabaya: "The abundance of ^<15>N in N_2O in aquatic ecosystems with emphasis on denitrification." Mitt.Int'l Verein.Limnol.25. 115-123 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Hama, T., K.H.Shin and N.Handa: "Spatial variability in the primary productivity in the East China Sea and its adjacent waters.," Journal of Oceanography. 53. 41-51 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Nakatsuka, T., and N.Handa: "Reconstruction of seasonal variation in nutrient budget of surface mixed layer using δ ^<15>N of sinking particle collected by time-series sediment trap system.," Journal of Oceanography. 53. 105-116 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 吉田 尚弘: "大気成分の観測-大気成分変動の研究と航空機観測への期待-" 天気. 44. 703-706 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshida, N.: "Coupling of water and material cycles,Proc.Trans-disciplinary Forum on Science and Technol.for the Global Environment" -Emvironmental Measurement and Analysis-. 59-60 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshioka, T.: "Phytoplanktonic carbon isotope fractionation : equations accounting for CO_2-concentrating mechanisms." Journal of Plankton Research. 19. 1455-1476 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 吉田 尚弘: "温室効果気体の変動と循環-一酸化二窒素-、秋元肇ほか編「大気の化学と地球環境-対流圏化学の最前線-」" 学会出版センター(印刷中), (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 吉田 尚弘、角皆潤、豊田 栄、河村 圭美: "地球環境の未来を探る-水・物質サイクルの変動と変化-" 丸善, pp133 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Goes, J.I., N.Handa, S.Taguchi, T.Hama, and H.Saito.: "Metabolism of natural monosaccharide constituents of storage and structural carbohydrates in natural assemblages of marine phytoplankton exposed to ultraviolet radiation." Limnology and Oceanography. 41. 1478-1489 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Wada, E., and T.Yoshioka: "Isotope biogeochemistry of several aquatic ecosystems." Geochemistry International. 33. 129-149 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Wada, E., N.Yoshida, T.Yoshioka, M.Yoh and Y.Kabaya: "The abundance of^<15> Nin N_2O in aquatic ecosystems with emphasis on denitrification." Mitt.Int'l Verein.Limnol.25. 115-123 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Hama, T., K.H.Shin, and N.Handa: "Spatial variability in the primary productivity in the East China Sea and its adjacent waters." Journal of Oceanography. 53. 41-51 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Hama T.: "Primary productivity and photosynthetic products in the Northwest Pacific Ocean." Biogeochemical Processes in the North Pacific, S.Tsunogai (ed.), Japan Marine Science Foundation.187-191 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Hamanaka, J., T.Hama, and N.Handa.: "Organic chemical aspects of the relationship between primary and export production in the euphotic zone." Biogeochemical Processes in the North Pacific, S.Tsunogai (ed.), Japan Marine Science Foundation.205-210 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Nakatsuta, T., and N.Handa.: "Reconstruction of seasonal variation on nutrient budget of surface mixed layr using delta^<15>N of sinking particle collected by time-series sediment trap system." Journal of Oceanography. 53. 105-116 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshida, N.: "Coupling of water and material cycle." Proc.Trans-disciplinary Forum on Science and Technol.for the Global Envirinment-Emvironmental Measurement and Analysis-.59-60 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Yoshioka, T.: "Phytoplanktonic carbon isotope fractionation : equations accounting for Co_2-concentraning mechanisms." Journal of Plankton Research. 19. 1455-1476 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Hama, T.: "Production and turnover of organic matter through phytoplankton photosynthesis." Dynamics and Characterization of Marine Organic Matter, N.Handa, E.Tanoue and T.Hama (eds), Terra Scientific Publishing, Tokyo. (in press). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Nakatsuka, T., N.Handa, T.Sugimoto, N.Harada, and S.Imaizumi: "Origin and decomposition of sinking particulate organic matter in the deep water column inferred from the vertical distributions of its delta^<15>N,delta^<13>C,and delta^<14>C in sinking particles." Deep-Sea Research I. (in press). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 濱 健夫・濱 順子: "バイオサイエンスのためのアイソトープ測定機器(第二シリーズ)VI.質量分析" RADIOISOTOPES. 45. 38-48 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Goes,J.I., N.Handa, S.Taguchi, Hama and H.Saito: "Metabolism of natural monosaccharide constituents of storage and structural carbohydrates in natural assemblages of marine phytoplankton exposed to ultraviolet radiation." Limnology and Oceanography. 41. 1478-1489 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 吉田尚弘: "大気成分の観測-大気成分変動の研究と航空機観測への期待-" 天気. 44. 703-706 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yoshida,N.: "Coupling of water and material cycles,Proc.Trans-disciplinary Forum on Science and Technol.for the Global Environment-" Environmental Measurement and Analysis. 59-60 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yoshioka,T.: "Phytoplanktonic carbon isotope fractionation : equations accounting for CO_2-concentrating mechanisms" Journal of Plankton Research. 19. 1455-1476 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Nakatsuka,T., and N.Handa: "Reconstruction of seasonal variation in nutrient budget of surface mixed layer using δ ^<15>N of sinking particle collected by time-series sediment trap system" Journal of Oceanography. 53. 105-116 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 吉田尚弘・角皆潤・豊田栄・河村圭美: "地球環境の未来をさぐる-水・物質サイクルの変動と変化-" 丸善, 133 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 吉田尚弘: "秋元肇ほか編「大気の化学と地球環境 -対流圏化学の最前線-」" 学会出版センター(印刷中), (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Wada,E.,et al.: "The abundance of N in N_2O in a aquatic ecosystems with emphasis on denitrification" Mitt.Internat.Verein.Limnol.25. 115-123 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 吉田尚弘: "大気成分の観測-大気成分変動の研究と航空機観測への期待-" 天気. (印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yoshida,N.: "Coupling of water and material cycles." Proc.Int'l Forum for Multi-disciplinary Researchers on Science and Technology for the Global Environment-Environmental Measurement and Analysis-. (in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 濱 健夫・濱 順子: "植物プランクトンの生産物組成" 月刊海洋. 号外No.10. 87-92 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 濱 健夫: "海洋表層における有機物生産過程の質的側面" 月刊海洋. 号外No.11. 43-48 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Hama,et al.: "Spatial variability of the primary productivity in the East China Sea and its adjacent area." Journal of Oceanography. 53/1. 41-51 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Hama: "Primary productivity and photosynthetic produats in the Northwest Pacific Ocean." Proceedings of the International arine Science Symposium on Biogeochemical Processes in the North Pacific. 187-191 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] K.H.Shin,et al.: "Primary production processes studied with photosynthetic products." Proceedings of the International Marine Science Symposium on Biogeochemical Processes in the North Pacific. 192-196 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] J.Hamanaka,et al.: "Organic chemical aspects of the relationship between primary and export production in the euphotic zone." Proceedings of the International Marine Science Symposium on Biogeochemical Processes in the North Pacific. 205-210 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] E.Wada,et al.: "Isotope biogeochemistry of several aquatic ecosystems." Geochemistry International. 33. 129-149 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 吉岡崇仁: "陸水環境における地球環境変動の記録-地域的強制・物質循環による変質-" 陸水学雑誌(Jpn.J.Limmol.). 57. 62-64 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 吉岡崇仁 他: "同位体・溶存成分の動態から見た熱帯湿地の物質循環" 陸水学雑誌(Jpn.J.Limmol.). 57. 85-87 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 吉田尚弘: "新版地学事典(平均滞留時間,分子拡散,エンタルピー,ポテンシャルエネルギーなど20項目)" 平凡社, 1443 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Hama: "Biogeochemistry of Marine Organic Matter(Eds.N.Handa,E.Tanoue and T.Hama)" Terra Scientific Publishing Company, in press (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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