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Tree root carbon dynamics focusing on the linkage between above and below ground ecosystems

Research Project

Project/Area Number 16K21131
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Forest science
Environmental dynamic analysis
Research InstitutionKyoto University (2018)
Forest Research and Management Organization (2016-2017)

Principal Investigator

ATAKA Mioko  京都大学, 農学研究科, 特定助教 (00757924)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords炭素動態 / 根圏呼吸 / 滲出物 / 自動チャンバー / 細根 / 連続測定 / 光合成 / フラックス / 窒素施肥 / 樹木細根 / 日射量 / 日周変化 / 樹液流 / 実生 / タイムラグ / 根浸出物 / 根圏プライミング効果 / 連続観測 / 物質循環 / 森林炭素収支 / 根滲出物
Outline of Final Research Achievements

In this study, we aimed to clarify root carbon dynamics focusing on linkage between above and below-ground systems using a high-frequency measurement system of fine root respiration. The measurement system of fine root respiration consist of small syringes for incubating fine root and a unit for measuring continuous CO2 concentration. Fine root respiration changed following with temperature and solar radiation changing with time. Moreover, daily fine root respiration was related with daily solar radiation before 3 days. These results indicated that the root carbon dynamics could be affected by two carbon flows (slow and rapid) to belowground system.

Academic Significance and Societal Importance of the Research Achievements

陸域生態系において、土壌は最大の炭素貯蔵庫である。温暖化などの気候変動に対し、土壌炭素動態がどのようなプロセスで変化するのかを予測するためには、土壌を構成する個々のCO2放出特性(根圏呼吸・有機物分解呼吸など)を分離して定量的に理解することが課題である。手法の制限により直接的に測定することが難しかった根圏呼吸の時間変動と環境応答性を評価することで、正確な森林炭素収支の推定につながる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (16 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (11 results)

  • [Int'l Joint Research] 北京大学(中国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 炭素収支における分解系の寄与解明の現状と展望2019

    • Author(s)
      安宅 未央子
    • Journal Title

      Shinrin Kagaku

      Volume: 85 Issue: 0 Pages: 7-12

    • DOI

      10.11519/jjsk.85.0_7

    • NAID

      130007610961

    • ISSN
      0917-1908, 2424-1490
    • Year and Date
      2019-02-01
    • Related Report
      2018 Annual Research Report
  • [Journal Article] Evidence for the coupling of extraradical mycorrhizal hyphae production to plant C assimilation in Japanese warm-temperate forest of arbuscular mycorrhizal and ectomycorrhizal tree species2018

    • Author(s)
      Schafer Holger、Ataka Mioko、Dannoura Masako、Osawa Akira
    • Journal Title

      European Journal of Soil Biology

      Volume: 88 Pages: 73-79

    • DOI

      10.1016/j.ejsobi.2018.07.002

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Early stage litter decomposition across biomes2018

    • Author(s)
      Djukic I., Kepfer-Rojas S., Schmidt I.K., Larsen K.S., Beier C., Berg B., Verheyen K., TeaComposition* (*Hoshizaki, K.: 304人中156番目)
    • Journal Title

      Science of The Total Environment

      Volume: 628-629 Pages: 1369-1394

    • DOI

      10.1016/j.scitotenv.2018.01.012

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Relationships between fine-root exudation and respiration of two Quercus species in a Japanese temperate forest2017

    • Author(s)
      Sun L, Ataka M, Kominami Y, Yoshimura K.
    • Journal Title

      Tree Physiology

      Volume: 印刷中 Issue: 8 Pages: 1011-1020

    • DOI

      10.1093/treephys/tpx026

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 暖温帯林における落葉炭素収支 分解呼吸量・溶脱量の環境応答2019

    • Author(s)
      安宅未央子、小南裕志、吉村謙一、高梨聡
    • Organizer
      第130回森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Root exudation as a major dimension of root traits among co-existing woody species in a deciduous-evergreen community2019

    • Author(s)
      Lijuan Sun, Mioko Ataka, Mengguang Han, Yunfeng Han, Dayong Gan, Biao Zhu
    • Organizer
      第66回日本生態学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 地中分光計測による森林土壌有機物組成と微生物呼吸の垂直分布の予測2019

    • Author(s)
      中路達郎、牧田直樹、片山歩美、安宅未央子、小熊宏之
    • Organizer
      第130回森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 自動チャンバーを用いた樹木細根呼吸速度の連続測定~時間変動とその制御要因~2018

    • Author(s)
      安宅未央子、小南裕志、吉村謙一、Sun Lijuan
    • Organizer
      日本農業気象学会75周年記念大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 全天空写真の高密度撮影による林冠構造の把握とその季節変動2018

    • Author(s)
      吉村謙一、小南裕志、安宅未央子
    • Organizer
      第129回森林学会大会
    • Related Report
      2017 Research-status Report
  • [Presentation] ヒノキ林のアーバスキュラー菌根菌糸の垂直分布~N、P、細根量との関係2018

    • Author(s)
      Schaefer Holger、安宅未央子、檀浦正子、小杉緑子、大澤晃
    • Organizer
      第129回森林学会大会
    • Related Report
      2017 Research-status Report
  • [Presentation] The experimental addition of labile organic matter induces contrasting microbial responses between spring and autumn soils2018

    • Author(s)
      Lijuan SUN, Mioko Ataka, Yuji Kominami, Kenichi Yoshimura, Kanehiro Kitayama
    • Organizer
      日本生態学会第65回全国大会
    • Related Report
      2017 Research-status Report
  • [Presentation] アーバスキュラー菌根または外生菌根が優占する温帯林における菌根菌糸生産量の季節変動2017

    • Author(s)
      Holger Schaefer・安宅未央子・檀浦正子・Jiyoung An・大澤晃
    • Organizer
      第128回日本森林学会大会
    • Place of Presentation
      鹿児島大学(鹿児島市)
    • Year and Date
      2017-03-26
    • Related Report
      2016 Research-status Report
  • [Presentation] Root exudates mediate nitrogen mineralization by enhancing microbial stoichiometric demand2017

    • Author(s)
      Lijuan SUN,Mioko Ataka,YujiKominami,Kenichi Yoshimura,Kanehiro Kitayama
    • Organizer
      第64回日本生態学会大会
    • Place of Presentation
      早稲田大学(東京都新宿区)
    • Year and Date
      2017-03-20
    • Related Report
      2016 Research-status Report
  • [Presentation] 菌根菌糸の呼吸速度測定手法の開発2017

    • Author(s)
      今井伸夫,安宅未央子,Holger Schaefer,吉村謙一,小南裕志
    • Organizer
      第64回日本生態学会大会
    • Place of Presentation
      早稲田大学(東京都新宿区)
    • Year and Date
      2017-03-20
    • Related Report
      2016 Research-status Report
  • [Presentation] Growth and respiration of mycorrhizal fungal hyphae in the soils of Japanese Quercus serrata and Chamaecyparis obtusa stands2016

    • Author(s)
      Schaefer Holger, Ataka Mioko, Kominami Yuji, Dannoura Masako, Osawa Akira
    • Organizer
      日本土壌肥料学会2016年度佐賀大会
    • Place of Presentation
      佐賀大学(佐賀市)
    • Year and Date
      2016-09-20
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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