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Quantifying nitrate dynamics in hydrosphere using triple oxygen isotopes as tracers

Research Project

Project/Area Number 17H00780
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionNagoya University

Principal Investigator

Tsunogai Urumu  名古屋大学, 環境学研究科, 教授 (50313367)

Co-Investigator(Kenkyū-buntansha) 須藤 健悟  名古屋大学, 環境学研究科, 教授 (40371744)
中川 書子  名古屋大学, 環境学研究科, 准教授 (70360899)
伊藤 昌稚  名古屋大学, 環境学研究科, 特任助教 (70762251)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥42,380,000 (Direct Cost: ¥32,600,000、Indirect Cost: ¥9,780,000)
Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2018: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2017: ¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Keywords硝酸 / 三酸素同位体 / 硝化速度 / 同化速度 / 窒素循環 / 湖沼 / 海洋 / 環境 / 琵琶湖
Outline of Final Research Achievements

Vertical distributions of both concentrations and the O-17-excesses of nitrate were determined four times during one year within the mesotrophic water column of Lake Biwa. By using both the deposition rate of atmospheric nitrate onto the entire surface of the lake and the influx/efflux of  nitrate via streams, we quantified the annual dynamics of nitrate (gross production rate of nitrate through nitrification and gross metabolic rate of nitrate through assimilation) based on the O-17-excess method. The results revealed that 642 Mmol of the remineralized nitrate was supplied into the water column through nitrification in the lake on an annual basis, while 810 Mmol of nitrate was metabolized in the lake through assimilation. In addition, the total metabolic rates of nitrate varied seasonally, with the highest rates in summer and the lowest in winter. We concluded that the O-17-excess method reliably estimates the dynamics of nitrate in mesotrophic lakes.

Academic Significance and Societal Importance of the Research Achievements

硝酸は、植物プランクトンが行う光合成に必須の栄養塩として代表的なもので、各湖沼に対する硝酸の供給速度は、水質や基礎生産量、生態系構造などを大きく左右する。一般の湖沼水中の硝酸の大部分は、湖内に生息する微生物から、硝化と呼ばれる反応を通じて供給される。硝化は季節や深度に応じて大きく変化するため、実測はきわめて難しかったが、研究はこれを容易にした。今後は、琵琶湖をはじめとした多くの湖沼や海域で、総硝化速度を定期的に観測し、その長期変化をモニタリングすることが可能になるため、世界各地の湖沼や沿岸海域で進行しつつある富栄養化や、生態系構造変化の原因究明に貢献することが期待される。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (54 results)

All 2021 2020 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 9 results) Presentation (40 results) (of which Int'l Joint Research: 10 results,  Invited: 3 results) Remarks (1 results)

  • [Int'l Joint Research] University of Alaska Fairbanks/University of Maryland(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Univ. Maryland Center Environ. Science(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Vertical Changes in the Flux of Atmospheric Nitrate From a Forest Canopy to the Surface Soil Based on Δ17O Values2021

    • Author(s)
      Inoue Takahiro, Nakagawa Fumiko, Shibata Hideaki, Tsunogai Urumu
    • Journal Title

      Journal of Geophysical Research: Biogeosciences

      Volume: 126 Issue: 4

    • DOI

      10.1029/2020jg005876

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dual stable isotope characterization of excess methane in oxic waters of a mesotrophic lake2020

    • Author(s)
      Tsunogai Urumu、Miyoshi Yuko、Matsushita Toshiyuki、Komatsu Daisuke D.、Ito Masanori、Sukigara Chiho、Nakagawa Fumiko、Maruo Masahiro
    • Journal Title

      Limnology and Oceanography

      Volume: 65 Issue: 12 Pages: 2937-2952

    • DOI

      10.1002/lno.11566

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation and uncertainty investigation of the NO2, CO and NH3 modeling over China under the framework of MICS-Asia III2020

    • Author(s)
      Kong Lei et al.
    • Journal Title

      Atmospheric Chemistry and Physics

      Volume: 20 Issue: 1 Pages: 181-202

    • DOI

      10.5194/acp-20-181-2020

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Influence of warm-core eddy on dissolved methane distribution in the southwestern Canada Basin during late summer/early fall 20152019

    • Author(s)
      Bui, O. T. M., S. Kameyama, Y. Kawaguchi, S. Nishino
    • Journal Title

      Polar Science

      Volume: 22 Pages: 100481-100481

    • DOI

      10.1016/j.polar.2019.100481

    • NAID

      130006198750

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Recent advances in earth and environmental sciences using natural stable isotopes as tracers2018

    • Author(s)
      角皆 潤
    • Journal Title

      Chikyukagaku

      Volume: 52 Issue: 3 Pages: 107-129

    • DOI

      10.14934/chikyukagaku.52.107

    • NAID

      130007487092

    • ISSN
      0386-4073, 2188-5923
    • Year and Date
      2018-09-25
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantifying nitrate dynamics in a mesotrophic lake using triple oxygen isotopes as tracers2018

    • Author(s)
      Tsunogai Urumu、Miyauchi Takanori、Ohyama Takuya、Komatsu Daisuke D.、Ito Masanori、Nakagawa Fumiko
    • Journal Title

      Limnology and Oceanography

      Volume: 63 Issue: S1

    • DOI

      10.1002/lno.10775

    • NAID

      120006473500

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Triple oxygen isotopes indicate urbanization affects sources of nitrate in wet and dry atmospheric deposition2018

    • Author(s)
      Nelson David M.、Tsunogai Urumu、Ding Dong、Ohyama Takuya、Komatsu Daisuke D.、Nakagawa Fumiko、Noguchi Izumi、Yamaguchi Takashi
    • Journal Title

      Atmospheric Chemistry and Physics

      Volume: 18 Issue: 9 Pages: 6381-6392

    • DOI

      10.5194/acp-18-6381-2018

    • NAID

      120006473532

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Export flux of unprocessed atmospheric nitrate from temperate forested catchments: a?possible new index for nitrogen saturation2018

    • Author(s)
      Nakagawa Fumiko、Tsunogai Urumu、Obata Yusuke、Ando Kenta、Yamashita Naoyuki、Saito Tatsuyoshi、Uchiyama Shigeki、Morohashi Masayuki、Sase Hiroyuki
    • Journal Title

      Biogeosciences

      Volume: 15 Issue: 22 Pages: 7025-7042

    • DOI

      10.5194/bg-15-7025-2018

    • NAID

      120006539245

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 湖沼における硝化速度定量化の新手法について2018

    • Author(s)
      角皆 潤, 中川 書子
    • Journal Title

      月刊下水道

      Volume: 41 Pages: 66-71

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 三酸素同位体異常を指標に用いた生物地球化学循環解析2018

    • Author(s)
      角皆 潤, 中川 書子
    • Journal Title

      号外海洋

      Volume: 61 Pages: 81-90

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 高感度安定同位体質量分析に基づく海洋地球化学の革新(第31回海洋化学学術賞石橋賞受賞記念論文)2017

    • Author(s)
      角皆 潤
    • Journal Title

      海洋化学研究

      Volume: 30 Pages: 3-17

    • Related Report
      2017 Annual Research Report
    • Open Access
  • [Presentation] 現場環境下における都市河川中の脱窒・同化・硝化速度定量法開発2020

    • Author(s)
      中川 書子, 鈴木 謙介, 伊藤 昌稚, 角皆 潤
    • Organizer
      JpGU-AGU Joint Meeting 2020, Virtual
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 安定同位体組成を指標に用いた伊勢湾における過飽和メタンの起源および挙動解明.2020

    • Author(s)
      蘭 慧, 角皆 潤, 中川 書子, 伊藤 昌稚, 三好 友子, 原 修一
    • Organizer
      JpGU-AGU Joint Meeting 2020, Virtual
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 対流圏一酸化窒素の窒素及び三酸素同位体組成の定量2020

    • Author(s)
      平野一哉, 角皆 潤, 中川書子, 伊藤昌稚
    • Organizer
      第25回大気化学討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 多段フィルターパック法を用いたガス状亜硝酸および二酸化窒素の三酸素同位体異常定量2020

    • Author(s)
      頼 鵬, 中川書子, 角皆 潤, 丁 とう, 野口 泉, 山口高志
    • Organizer
      2020年度日本地球化学会第67回オンライン年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] The 17O-excess of nitrate in the Japan Sea2019

    • Author(s)
      Tsunogai, Urumu, Peng Weiqing, Masanori Ito, Chiho Sukigara, D.D. Komatsu, and Fumiko Nakagawa
    • Organizer
      SOLAS Open Science Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The triple oxygen isotopes of nitrate as tracer of atmospheric nitrate deposition in coastal seawater2019

    • Author(s)
      Nakagawa, Fumiko, Urumu Tsunogai, Takuya Ohyama, Daisuke D. Komatsu, Atsushi Kubo, and Jota Kanda
    • Organizer
      SOLAS Open Science Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 炭素および水素の安定同位体比を複合的に指標に用いた酸化的水柱に溶存するメタンの起源および挙動解明2019

    • Author(s)
      角皆 潤,三好友子,松下俊之,伊藤昌稚,小松大祐,鋤柄千穂,中川書子
    • Organizer
      日本地球化学会第66回年会, 東京大学理学部, 2019年9月17-19日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 15Nアンモニア添加培養に基づく水柱の硝化速度定量2019

    • Author(s)
      水野宏香,角皆 潤,中川書子,伊藤昌稚
    • Organizer
      日本地球化学会第66回年会, 東京大学理学部, 2019年9月17-19日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 現場環境下における河川硝酸除去速度の時間変化定量法開発2019

    • Author(s)
      鈴木謙介,角皆 潤,中川書子,伊藤昌稚
    • Organizer
      日本地球化学会第66回年会, 東京大学理学部, 2019年9月17-19日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 大気硝酸添加培養法に基づく都市河川における河床窒素循環速度の季節変化定量2019

    • Author(s)
      中川書子, 山本雄大, 池上文香, 角皆 潤
    • Organizer
      日本地球化学会第66回年会, 東京大学理学部, 2019年9月17-19日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 水環境中の溶存無機態リン酸の三酸素同位体組成定量2019

    • Author(s)
      三歩一孝, 角皆 潤, 中川書子, 伊藤昌稚
    • Organizer
      日本地球化学会第66回年会, 東京大学理学部, 2019年9月17-19日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 微量安定同位体トレーサーを利用した海洋における水柱酸素消費速度定量2019

    • Author(s)
      角皆潤・柏木章吾・伊藤昌稚・中川書子・鋤柄千穂・水野宏香
    • Organizer
      日本海洋学会2019年度秋季大会, 富山国際会議場, 2019 年9月25-29日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 15Nアンモニア添加培養に基づく水柱硝化速度の鉛直分布定量2019

    • Author(s)
      水野宏香・角皆潤・中川書子・伊藤昌稚
    • Organizer
      日本海洋学会2019年度秋季大会, 富山国際会議場, 2019 年9月25-29日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 降水用自動サンプラーの試作及びこれを用いた短時間化学組成変化の定量化2019

    • Author(s)
      嶺野雄登, 角皆潤, 鈴木謙介, 中川書子, 高橋菜椿子
    • Organizer
      第24回大気化学討論会, ホテル明山荘(愛知県蒲郡市), 2019年11月5-7日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 都市大気中二酸化窒素および亜硝酸ガスの三酸素同位体組成の時間変化2019

    • Author(s)
      中川書子・丁トゥ・頼鵬・平野一哉・角皆潤,野口泉・山口高志
    • Organizer
      第24回大気化学討論会, ホテル明山荘(愛知県蒲郡市), 2019年11月5-7日
    • Related Report
      2019 Annual Research Report
  • [Presentation] 連続フロー型質量分析計を用いた地球惑星科学研究の光と影2018

    • Author(s)
      角皆 潤, 中川 書子
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 対流圏二酸化炭素の高精度三酸素同位体異常定量法開発2018

    • Author(s)
      常川 駿, 角皆 潤, 中川 書子
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 飛行艇を用いた臨床地球惑星科学の創成2018

    • Author(s)
      角皆 潤, 植松 光夫, 小畑 元, 谷本 浩志, 川口 慎介, 篠原 宏志, 中川 書子, 石坂 丞二, 木村 勇気
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 大気硝酸の存在量を指標に用いた河川環境における窒素循環速度定量2018

    • Author(s)
      中川 書子, 池上 文香, 小幡 祐介, 安藤 健太, 角皆 潤
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 三酸素同位体組成を指標に用いた都市域における亜硝酸ガスの挙動および起源推定2018

    • Author(s)
      丁 トゥ, 頴川 叶侑, 中川 書子, 角皆 潤, 野口 泉, 山口 高志
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 林冠から表層土壌にかけての大気由来硝酸の挙動の追跡:三酸素同位体組成を指標に用いて2018

    • Author(s)
      井上 貴央, 柴田 英昭, 角皆 潤, 中川 書子
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 対流圏オゾンの三酸素同位体組成の測定2018

    • Author(s)
      嶺野 雄登, 李 一君, 丁 トゥ, 角皆 潤, 中川 書子, 中根 令以, 佐藤 啓市, 谷本 浩志
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 亜熱帯表層海水中の硝酸の三酸素同位体組成定量への挑戦2018

    • Author(s)
      彭 魏慶, 松本 佳海, 鋤柄 千穂, 伊藤 昌稚, 中川 書子, 角皆 潤
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 自然同位体組成を指標に用いた植物中の硝酸同化過程解析2018

    • Author(s)
      中川 書子, 小幡 祐介, 伊藤 昌稚, 角皆 潤
    • Organizer
      2018年度日本地球化学会第65回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 河床堆積物に対する硝酸の添加培養に基づく河川環境下における硝化速度定量2018

    • Author(s)
      山本 雄大, 角皆 潤, 池上 文香, 中川 書子
    • Organizer
      2018年度日本地球化学会第65回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 水圏環境下における高感度酸素消費速度定量法開発2018

    • Author(s)
      柏木 章吾, 角皆 潤, 伊藤 昌稚, 中川 書子, 鋤柄 千穂
    • Organizer
      2018年度日本地球化学会第65回年会, 琉球大学千原キャンパス, 2018年9月11-13
    • Related Report
      2018 Annual Research Report
  • [Presentation] 硝酸の三酸素同位体異常を指標に用いた水-堆積物インターフェースにおける脱窒速度定量2018

    • Author(s)
      佐野 陽子, 角皆 潤, 池上 文香, 中川 書子
    • Organizer
      2018年度日本地球化学会第65回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 貧栄養海域における溶存硝酸の三酸素同位体組成定量への挑戦2018

    • Author(s)
      Peng Weiqing, 松本 佳海, 鋤柄 千穂, 伊藤 昌稚, 中川 書子, 角皆 潤
    • Organizer
      2018年度日本地球化学会第65回年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Influence of urbanization on the sources of atmospheric nitrate; Evidence from the triple oxygen isotopes of nitrate in dry and wet deposition2018

    • Author(s)
      Nakagawa, F., D. Ding, U. Tsunogai, T. Ohyama, D.D. Komatsu, I. Noguchi, T. Yamaguchi, D.M. Nelson
    • Organizer
      2018 joint 14th iCACGP QS, 15th IGAC SC, Takamatsu, Kagawa, Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seasonal variation in the triple oxygen isotopic compositions of atmospheric nitrate in the Asian monsoon area2018

    • Author(s)
      Tsunogai, U., T. Ohyama, F. Nakagawa, K. Sato, T. Ohizumi
    • Organizer
      2018 joint 14th iCACGP QS, 15th IGAC SC, Takamatsu, Kagawa, Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Determination on the triple oxygen isotopic compositions of tropospheric ozone in Asian Monsoon area2018

    • Author(s)
      Mineno, Y., U. Tsunogai, Y. Li, D. Ding, R. Nakane, F. Nakagawa, K. Sato, H. Tanimoto
    • Organizer
      2018 joint 14th iCACGP QS, 15th IGAC SC, Takamatsu, Kagawa, Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Determination of the triple oxygen isotopic compositions of tropospheric carbon dioxide2018

    • Author(s)
      Tsunekawa, S., U. Tsunogai, F. Nakagawa
    • Organizer
      2018 joint 14th iCACGP QS, 15th IGAC SC, Takamatsu, Kagawa, Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 17O-excess of atmospheric nitrous acid in urban area: quantification of its sources2018

    • Author(s)
      Ding, D., F. Nakagawa, U. Tsunogai, K. Egawa, I. Noguchi, T. Yamaguchi
    • Organizer
      2018 joint 14th iCACGP QS, 15th IGAC SC, Takamatsu, Kagawa, Japan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 硝酸の三酸素同位体組成を利用した河川水中内の窒素循環速度測定法開発2017

    • Author(s)
      池上 文香, 角皆 潤, 小幡 裕介, 安藤 健太, 中川 書子
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] Triple oxygen isotopes indicate that urbanization causes differences in the sources of nitrate between dry and wet atmospheric deposition2017

    • Author(s)
      David M Nelson, Urumu Tsunogai, Takuya Ohyama, Daisuke Komatsu, Fumiko Nakagawa, Izumi Noguchi, Takashi Yamaguchi
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 軽元素安定同位体比の高感度分析に基づく地球環境科学研究の新展開(学会賞受賞記念講演)2017

    • Author(s)
      角皆 潤
    • Organizer
      日本地球化学会第64回年会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 海洋学における軽元素安定同位体地球化学の新展開2017

    • Author(s)
      角皆 潤, 伊藤 昌稚, 鋤柄 千穂, 小松 大祐, 中川 書子
    • Organizer
      日本地球化学会第64回年会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 硝酸の三素同位体組成を利用した河川水中窒循環速度測定2017

    • Author(s)
      池上 文香, 角皆 潤, 小幡 祐介, 安藤 健太, 中川 書子
    • Organizer
      日本地球化学会第64回年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 大気から森林生態系に沈着したHNO3の直接流出率定量化2017

    • Author(s)
      角皆 潤, 小幡祐介, 大山拓也, 中川書子, 山下尚之, 齋藤辰善, 佐瀨裕之
    • Organizer
      第23回大気化学討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 自然界の三酸素同位体異常を指標に用いた河川・湖沼の窒素循環定量化2017

    • Author(s)
      角皆 潤, 中川 書子
    • Organizer
      第31回東海陸水談話会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Remarks] 琵琶湖における年間硝酸生産量の定量に成功!

    • URL

      http://www.nagoya-u.ac.jp/about-nu/public-relations/researchinfo/upload_images/20180122_env_1.pdf

    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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