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Clarification of nitrogen aquisiton strategy of co-existent tree sepces and improvement of process model for nitrogen cycling

Research Project

Project/Area Number 20H03034
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 40010:Forest science-related
Research InstitutionKagoshima University

Principal Investigator

Ugawa Shin  鹿児島大学, 農水産獣医学域農学系, 准教授 (30582738)

Co-Investigator(Kenkyū-buntansha) 稲垣 善之  国立研究開発法人森林研究・整備機構, 森林総合研究所, 主任研究員 等 (00353590)
福澤 加里部  北海道大学, 北方生物圏フィールド科学センター, 准教授 (10456824)
舘野 隆之輔  京都大学, フィールド科学教育研究センター, 教授 (60390712)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2021: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Keywords窒素獲得戦略 / 共生タイプ / 窒素形態 / 窒素安定同位体 / プロセスモデル
Outline of Research at the Start

本研究では、環境変動に対する窒素吸収量低下のリスクとプロセスが各樹種の窒素吸収様式ごとに異なることに着目し、同所的に共存するすべての樹種の窒素獲得戦略を3つの視点(根と微生物の共生タイプ、窒素を吸収する土壌の深さ、窒素を吸収する際の窒素形態)から類別化し、これを反映させた窒素循環プロセスモデルを構築しシミュレートすることで、各種環境変動に対する森林生態系の窒素吸収機能の脆弱性を評価する。

Outline of Final Research Achievements

In this study, we elucidated the difference in nitrogen (N) acquisition among co-existent 5 tree species with a viewpoint of N form. In our experiment with spraying of 2 kinds of ammonium nitrate labeled by N stable isotope (15NH4-14NO3 (NH4-labelling treatment) and 14NH4-15NO3 (NO3-labelling treatment)), δ15N of fine root showed higher variation in NO3-labelling treatment than NH4-labelling treatment irrespective of tree species when we sampled fine root 70 hours after spraying of ammonium nitrate. However, for a tree species Aucuba japonica, δ15N of fine root was higher in NO3-labelling treatment than NH4-labelling treatment.These results indicate N acquisition efficiency is different among tree species in the process from N diffusion in soil to N absorption by fine roots.

Academic Significance and Societal Importance of the Research Achievements

本研究では、共存する樹種の間で、窒素形態による窒素獲得効率に違いがあることを明らかにした。とくに、細根に吸収される窒素量が硝酸態窒素を地表面に散布した処理区で大きくばらつき、細根表面から吸収するプロセスだけではなく、土壌に拡散するプロセスも考慮すべきことが示された。一方で、これら一連のプロセスにおいても、窒素形態による窒素獲得効率が樹種によって異なることが明らかとなった。これらの成果は、各種環境変動に対する各樹種の窒素獲得効率の変化および森林生態系における窒素吸収機能の脆弱性評価に繋がる材料を提供する。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (26 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (13 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 13 results,  Open Access: 1 results) Presentation (12 results) (of which Int'l Joint Research: 1 results)

  • [Int'l Joint Research] ニューハンプシャー大学(米国)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Effects of climate and acidic deposition on interannual variations of stream water chemistry in forested watersheds in the Shimanto River Basin, southern Japan2024

    • Author(s)
      Inagaki Yoshiyuki、Sakai Hisao、Shinomiya Yoshiki、Yoshinaga Shuichiro、Torii Atushi、Yamada Tsuyoshi、Noguchi Kyotaro、Morishita Tomoaki、Fujii Kazumichi
    • Journal Title

      Ecological Research

      Volume: OnlineFirst Pages: 1-15

    • DOI

      10.1111/1440-1703.12441

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nitrate leaching and its susceptibility in response to elevated nitrogen deposition in Japanese forests2023

    • Author(s)
      Yang Ru、Fukuzawa Karibu、Nakayama Masataka、Tateno Ryunosuke、Hishi Takuo、Shibata Hideaki、Chiwa Masaaki
    • Journal Title

      Journal of Forest Research

      Volume: 29 Issue: 2 Pages: 81-88

    • DOI

      10.1080/13416979.2023.2242542

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Shift in the rhizosphere microbial communities between growing- and low-temperature dormant seasons in a northern hardwood forest2023

    • Author(s)
      Nakayama Masataka、Tateno Ryunosuke
    • Journal Title

      Plant and Soil

      Volume: in press Pages: 1-17

    • DOI

      10.1007/s11104-023-06391-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Presence of understory dwarf bamboo determines ecosystem fine root production in a cool-temperate forest in northern Japan2023

    • Author(s)
      Yanagawa Sanae、Fukuzawa Karibu、Takagi Kentaro、Shibata Hideaki、Satoh Fuyuki
    • Journal Title

      Journal of Forest Research

      Volume: in press Issue: 3 Pages: 1-9

    • DOI

      10.1080/13416979.2023.2169981

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Differences in the short-term responses of soil nitrogen and microbial dynamics to soil moisture variation in two adjacent dryland forests2022

    • Author(s)
      Tatsumi Chikae、Taniguchi Takeshi、Du Sheng、Chen Qiuwen、Yamanaka Norikazu、Otsuki Kyoichi、Tateno Ryunosuke
    • Journal Title

      European Journal of Soil Biology

      Volume: 110 Pages: 103394-103394

    • DOI

      10.1016/j.ejsobi.2022.103394

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Age-Related Changes in Water and Nitrogen Utilization in Crop Trees and Understory Vegetation in a Hinoki Cypress Plantation Forest in Kochi City, Southern Japan2022

    • Author(s)
      Inagaki Yoshiyuki、Miyamoto Kazuki、Sakai Atsushi
    • Journal Title

      Nitrogen

      Volume: 3 Issue: 2 Pages: 247-259

    • DOI

      10.3390/nitrogen3020017

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationship between root tip morphology and growth conditions across Macaranga and Shorea species in a tropical lowland forest of Peninsula Malaysia2022

    • Author(s)
      Ugawa Shin、Kuninaka Wataru、Hayata Keisuke、Maruta Naoko、Ohashi Syota、Kubota Victoria Rika、Rozita Ahmad、Wan Rasidah Kadir
    • Journal Title

      Plant and Soil

      Volume: 481 Issue: 1-2 Pages: 621-639

    • DOI

      10.1007/s11104-022-05665-1

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In-situ measurement of the effect of canopy tree fine roots on nitrogen availability in forest soil2021

    • Author(s)
      Nakayama Masataka、Tateno Ryunosuke
    • Journal Title

      Rhizosphere

      Volume: 18 Pages: 100324-100324

    • DOI

      10.1016/j.rhisph.2021.100324

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Microbial functions and soil nitrogen mineralisation processes in the soil of a cool temperate forest in northern Japan2021

    • Author(s)
      Nakayama Masataka、Imamura Shihomi、Tatsumi Chikae、Taniguchi Takeshi、Tateno Ryunosuke
    • Journal Title

      Biogeochemistry

      Volume: 155 Issue: 3 Pages: 359-379

    • DOI

      10.1007/s10533-021-00830-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Timing of forest fine root production advances with reduced snow cover in northern Japan: Implications for climate-induced change in understory and overstory competition2021

    • Author(s)
      Fukuzawa, Karibu., Tateno, Ryunosuke., Ugawa, Shin., Watanabe, Tsunehiro., Hosokawa, Nanae., Imada, Shogo., Shibata, Hideaki.
    • Journal Title

      Oecologia

      Volume: - Issue: 1 Pages: 263-273

    • DOI

      10.1007/s00442-021-04914-x

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Priming effects induced by C and N additions in relation to microbial biomass turnover in Japanese forest soils2021

    • Author(s)
      Sawada Kozue、Inagaki Yoshiyuki、Toyota Koki
    • Journal Title

      Applied Soil Ecology

      Volume: 162 Pages: 103884-103884

    • DOI

      10.1016/j.apsoil.2021.103884

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nitrogen source utilization in co-existing canopy tree and dwarf bamboo in a northern hardwood forest in Japan2020

    • Author(s)
      Tateno Ryunosuke、Nakayama Masataka、Yano Midori、Fukuzawa Karibu、Inagaki Yoshiyuki、Koba Keisuke、Ugawa Shin
    • Journal Title

      Trees

      Volume: 34 Issue: 4 Pages: 1047-1057

    • DOI

      10.1007/s00468-020-01980-1

    • NAID

      120006870878

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stream water quality in relation to watershed‐scale practical forest management in a cool‐temperate natural forest in northern Japan2020

    • Author(s)
      Fukuzawa Karibu、Satoh Fuyuki、Shibata Hideaki、Kamiura Tatsuya、Kozuka Chikara、Takanishi Toshikazu、Hayakashi Shintaro、Hirano Yuya、Mamiya Wataru、Yabuhara Yuri、Sakai Rei、Sugiyama Hiroshi、Masumoto Hiroshi、Fukuzawa Naoko、Takeda Tetsuji、Morita Hideaki、Yamanouchi Makoto、Hasegawa Junko、Yoshida Toshiya
    • Journal Title

      Ecological Research

      Volume: - Issue: 5 Pages: 742-749

    • DOI

      10.1111/1440-1703.12094

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] ササ除去が森林土壌の窒素動態に及ぼす影響:複数サイトにおける観測から2024

    • Author(s)
      福澤加里部・智和正明・舘野隆之輔・松山周平・菱 拓雄・杉山賢子・谷口武士・野村 睦
    • Organizer
      第135回日本森林学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 関東北部のアカマツ林における大気沈着窒素の長期的な挙動: 窒素安定 同位体(15N)トレーサー添加10年後の15N回収率2023

    • Author(s)
      福澤加里部、柴田英昭、若松孝志、稲垣善之
    • Organizer
      日本地球惑星連合2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 林床植生除去に対する森林土壌の窒素動態の中長期的な応答2023

    • Author(s)
      福澤加里部、智和正明、菱拓雄、松山周平、野村睦
    • Organizer
      第134回日本森林学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 化合物組成の異なる根滲出物が森林土壌の微生物および窒素循環に与える影響2023

    • Author(s)
      中山理智、舘野隆之輔
    • Organizer
      第134回日本森林学会大会
    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Presentation] 北海道東部の森林の根圏土壌における初冬・初春および盛夏の微生物群集2022

    • Author(s)
      中山理智、舘野隆之輔
    • Organizer
      第133回日本森林学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 林床植生の除去は森林土壌の窒素動態と樹木根の外生菌根菌組成を変化させるか?2022

    • Author(s)
      福澤加里部、谷口武士、中山理智、野村睦
    • Organizer
      第70回日本生態学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 林床植生除去に対する森林土壌の窒素動態の中長期的な応答2022

    • Author(s)
      福澤加里部、智和正明、菱拓雄、松山周平、野村睦
    • Organizer
      第134回日本森林学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Relationship between forest mycorrhizal type and nitrogen-cycling functions of soil microbial communities: Implications from the rhizosphere scale to the ecosystem scale2021

    • Author(s)
      Chikae Tatsumi, Takeshi Taniguchi, Sheng Du, Norikazu Yamanaka, Ryunosuke Tateno
    • Organizer
      Annual Meeting of the Ecological Society of America
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 北方林における林床植生の除去が土壌の無機窒素量と外生菌根菌組成に及ぼす影響2021

    • Author(s)
      福澤加里部、谷口武士、中山理智
    • Organizer
      日本地球惑星連合2021年大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 冷温帯林における林床植生の存在が細根バイオマス・生産量に及ぼす影響2021

    • Author(s)
      福澤加里部、梁川紗奈江、高木健太郎、柴田英昭、佐藤冬樹
    • Organizer
      第54回根研究集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] スギおよびヒノキの葉分解に伴う窒素炭素安定同位体比の変化2021

    • Author(s)
      稲垣善之、鵜川信、木庭啓介
    • Organizer
      第68回日本生態学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 北海道東部の森林における初冬および初春の酵素活性に対する根圏効果2021

    • Author(s)
      中山理智、舘野隆之輔
    • Organizer
      第132回日本森林学会大会
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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