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Response and feedback of soil microbiota to global warming revealed by metagenome analysis

Research Project

Project/Area Number 16K00573
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Environmental impact assessment
Research InstitutionHiroshima University

Principal Investigator

Kondo Toshiaki  広島大学, 国際協力研究科, 特任准教授 (40391106)

Co-Investigator(Kenkyū-buntansha) 梁 乃申  国立研究開発法人国立環境研究所, 地球環境研究センター, 主任研究員 (50391173)
寺本 宗正  国立研究開発法人国立環境研究所, 地球環境研究センター, 特別研究員 (10761041)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords土壌呼吸 / 微生物呼吸 / メタゲノム / 分子生態学 / 土壌微生物 / 環境DNA / 気候変動
Outline of Final Research Achievements

The carbon stored belowground is transferred to the atmosphere by microbial decomposition of soil organic carbon. This phenomenon is called as soil respiration, and the global soil respiration is estimated at 98GtC, which is about nine times as large as that released by annual fossil-fuel CO2 emission. Because the amount of soil respiration increases with a rise in temperature due to accelerated microbial decomposition of soil organic carbon, global warming-induced increases in soil respiration represent an important positive feedback loop to climate change. However, the magnitude and timing of this feedback still remain unclear, because of the difficulty in measuring the response of diverse and huge soil microbiota to global warming. In this research, we measured the amount and species composition of soil microbiota in the soil warming experiment site in Hiroshima Preefcture by using the Next Generation Sequencing, and discussed the response of soil microbiota to global warming.

Academic Significance and Societal Importance of the Research Achievements

森林生態系が将来に渡ってCO2吸収源として機能するのか、あるいは温暖化に伴って土壌有機物分解が促進し、更なる温暖化と微生物呼吸の増加が生じることで放出源へと転換するのかといった疑問に対する回答は、未だ憶測の域を出ていない。本研究では、温暖化操作実験下において土壌呼吸の連続測定が行われている西日本の森林において、最新の遺伝解析手法である「次世代シーケンサーを活用した環境DNA解析法」により、温暖化に伴う土壌微生物動態の変化を解明した。得られた知見はこれまでブラックボックスとされてきた「温暖化環境下における土壌微生物動態」の解明に寄与するもので、気候変動影響の将来予測に貢献するものと言える。

Report

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

    (18 results)

All 2019 2018 Other

All Int'l Joint Research (1 results) Presentation (17 results) (of which Int'l Joint Research: 10 results)

  • [Int'l Joint Research] 中国科学院西双版納熱帯研究所(中国)

    • Related Report
      2016 Research-status Report
  • [Presentation] 遺伝解析による土壌微生物評価から温暖化に伴う土壌呼吸量の変動要因を探る2019

    • Author(s)
      近藤俊明・寺本宗正・高木健太郎・小嵐 淳・安藤麻里子・高木正博・石田祐宣・梁 乃申.
    • Organizer
      第130回日本森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 炭素・窒素同位体比で探る森林土壌有機物の蓄積状況2019

    • Author(s)
      安藤 麻里子・小嵐 淳・高木健太郎・近藤俊明・寺本宗正・永野博彦・國分陽子・高木正博・石田祐宣・梁 乃申
    • Organizer
      第130回日本森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 温暖化は土壌に貯留する有機炭素にどのような変化をもたらすか?2019

    • Author(s)
      小嵐 淳・安藤麻里子・高木健太郎・近藤俊明・寺本宗正・永野博彦・國分陽子・高木正博・石田祐宣・平舘俊太郎・梁 乃申
    • Organizer
      第130回日本森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 10年間の地温上昇処理が道北の植林泥炭地の微生物呼吸量に与える影響2019

    • Author(s)
      高木健太郎・梁 乃申・Aguilos MS・Kira RM・寺本宗正・小林 真・孫 力飛・近藤俊明・小嵐 淳・安藤麻里子
    • Organizer
      第130回日本森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 落葉広葉樹林における窒素沈着量と土壌微生物特性の関係2019

    • Author(s)
      永野博彦・安藤麻里子・福島慶太郎・中山理智・堅田元喜・山口高志・渡辺 誠・近藤俊明・舘野隆之輔・小嵐 淳
    • Organizer
      第130回日本森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 東広島アラカシ林における微生物呼吸に対する長期的な温暖化の影響2018

    • Author(s)
      寺本宗正・梁 乃申・近藤俊明・曾 継業・中根周歩
    • Organizer
      第129回日本森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Response of soil microbial community to climate change2018

    • Author(s)
      Kondo T, Teramoto M, Nakane K, Takagi K, Koarashi J, Andoh M, Takagi M, Ishida S & Liang N
    • Organizer
      ILTER Annual Coordinating Committee Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Long-term warming effect on heterotrophic respiration in a warm-temperate evergreen broad -leaved forest in western Japan2018

    • Author(s)
      Teramoto M, Kondo T, Liang N, Zeng J, Nakane K, Koarashi J & Andoh M
    • Organizer
      ILTER Annual Coordinating Committee Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Long-term Monitoring Soil Carbon Dynamics of Asian Terrestrial Ecosystem by An Automated Chamber Network2018

    • Author(s)
      Liang N, Chiang PN, Wang Y, Teramoto M, Takagi K, Kondo T, 5Koarashi J, Zhang Y, Li S, Fang J, Piao S, Lai DYF, Takagi M, Ishida S, Hirano T, Zeng J, Takahashi Y, Andoh M & Harun I
    • Organizer
      ILTER Annual Coordinating Committee Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Warming-induced enhancement of soil heterotrophic respiration is linearly increased by the current year's litterfall supply in a cool-temperate forested peatland2018

    • Author(s)
      Takagi K, Liang N, Aguilos MM, Kira RM, Teramoto M, Kobayashi M, Son R, Kondo T, Koarashi J & Andoh M
    • Organizer
      ILTER Annual Coordinating Committee Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimating the carbon source in soil respiration and the effects of warming using radiocarbon signatures2018

    • Author(s)
      Andoh M, Koarashi J, Liang N, Teramoto M, Kondo T & Takagi K
    • Organizer
      ILTER Annual Coordinating Committee Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Response and feedback of soil microbiota to global warming2018

    • Author(s)
      Kondo T, Teramoto M, Nakane K, Takagi K, Takagi M, Ishida S & Liang N
    • Organizer
      The 8th EAFES International Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An Automated Chamber Network for Estimation of CO2/CH4 Sink/Source of Asian Terrestrial Ecosystems2018

    • Author(s)
      Liang N, Teramoto M, Takagi K, Kondo T, Zhang Y, He J, Wang Y, Li S, Fang J, Piao S, Lai Y, Takagi M, Ishida S, Chiang P, Zeng J & Harun I
    • Organizer
      The 8th EAFES International Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sustained stimulatory warming effect on soil organic carbon decomposition in Asian monsoon forests: long-term empirical validation using chamber network2018

    • Author(s)
      Teramoto M, Liang N, Takagi K, Kondo T, Takagi M, Ishida S, Zhang Y, Lai DYF, Zeng J & Nakane K
    • Organizer
      The 8th EAFES International Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The influence of long-term soil warming on heterotrophic respiration in an evergreen broad-leaved forest in Hiroshima2018

    • Author(s)
      Munemasa Teramoto, Naishen Liang, Toshiaki Kondo, Jiye Zeng & Kaneyuki Nakane
    • Organizer
      Japan Geoscience Union Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Soil Respiration in Asian Forests under Climate Change2018

    • Author(s)
      Toshiaki Kondo
    • Organizer
      The 8th East Asian Federation of Ecological Societies International Congress
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 東広島アラカシ林における微生物呼吸に対する長期的な温暖化の影響2018

    • Author(s)
      寺本宗正、梁 乃申、近藤俊明、曾 継業、中根周歩
    • Organizer
      第129回日本森林学大会
    • Related Report
      2017 Research-status Report

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

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