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Elucidation of the processes of N retention and emission through nitrite and nitric oxide in forest soils

Research Project

Project/Area Number 25550009
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Environmental dynamic analysis
Research InstitutionThe University of Tokyo

Principal Investigator

SENOO Keishi  東京大学, 農学生命科学研究科, 教授 (40206652)

Co-Investigator(Kenkyū-buntansha) ISOBE Kazuo  東京大学, 大学院農学生命科学研究科, 助教 (30621833)
Co-Investigator(Renkei-kenkyūsha) OHTE Nobuhito  京都大学, 大学院情報学研究科, 教授 (10233199)
KOBA Keisuke  東京農工大学, 大学院農学研究科, 准教授 (90311745)
YOSHIYUKI Inagaki  独立行政法人森林総合研究所, 四国支所, 主任研究員 (00353590)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords森林土壌 / トレーサー / 窒素 / 亜硝酸 / 一酸化窒素 / 溶存有機体窒素 / 土壌学 / 環境分析 / 窒素循環 / 同位体分析 / 森林生態系
Outline of Final Research Achievements

In this study, we calculated nitrite transformation rates and traced the fates of nitrite to detect its consumption pathway using nitrogen stable isotope (15N) in forest surface soils.
As a result, fast production and consumption of nitrite was observed universally. Nitrite transformation rates and consumption pathway vary according to soil conditions. It was indicated that the conversion to dissolved organic nitrogen and nitric oxide were important as the pathway of nitrite consumption. These findings are required to elucidate the mechanisms of conservation / emission of available nitrogen for plants and microbes in soils.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (4 results)

All 2014 2013

All Presentation (4 results)

  • [Presentation] 森林表層土壌における亜硝酸生成・消費メカニズム2014

    • Author(s)
      黒岩恵・磯部一夫・小田智基・加藤宏有・大手信人・大塚重人・妹尾啓史
    • Organizer
      日本土壌肥料学会2014年度東京大会
    • Place of Presentation
      東京農工大学工学部
    • Year and Date
      2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] 森林表層土壌における亜硝酸の変換・放出プロセスについて2014

    • Author(s)
      黒岩恵, 磯部一夫, 木庭啓介, 稲垣善之, 大手信人, 大塚重人, 妹尾啓史
    • Organizer
      日本地球惑星科学連合2014年度連合大会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2014-04-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] 森林表層土壌における亜硝酸の変換・放出プロセスについて2013

    • Author(s)
      黒岩恵、磯部一夫、木庭啓介、稲垣善之、大手信人、大塚重人、妹尾啓史
    • Organizer
      日本地球惑星科学連合大会2013年度連合大会
    • Place of Presentation
      幕張メッセ(千葉県)
    • Related Report
      2013 Research-status Report
  • [Presentation] 森林土壌での亜硝酸動態とガス態窒素生成プロセスについて2013

    • Author(s)
      黒岩恵、磯部一夫、大塚重人、妹尾啓史
    • Organizer
      日本土壌肥料学会2013年度名古屋大会
    • Place of Presentation
      名古屋大学東山キャンパス(愛知県)
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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