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Multiscale analysis of the hierarchical structure of soil aggregates for supporting soil microbial diversity

Research Project

Project/Area Number 18K05369
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38010:Plant nutrition and soil science-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

ASANO Maki  筑波大学, 生命環境系, 助教 (80453538)

Co-Investigator(Kenkyū-buntansha) 和穎 朗太  国立研究開発法人農業・食品産業技術総合研究機構, 農業環境変動研究センター, 上級研究員 (80456748)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords土壌団粒 / 土壌団粒階層性 / 土壌有機物 / STXM / 土壌有機無機相互作用 / NEXAFS / 放射光分析 / 顕微分析 / マルチスケール解析
Outline of Final Research Achievements

This study aimed to answer the question, "What structural characteristics define the soil aggregates that support the diverse soil microbial communities that drive healthy material cycling?". In order to answer this question, following soil samples were selected,(1) soils at different stages of soil development after volcanic eruptions and (2) non-biological soil structures that contrast with soil aggregates produced by earthworms. By analyzing the content and chemical state of carbon and nitrogen in sub-micron soil aggregates and the diversity of soil pore space, the characteristics of the structure in biologically active soils were discussed.

Academic Significance and Societal Importance of the Research Achievements

地球温暖化に対する土壌有機物の寄与や、持続可能な土地利用という全球的な問題を背景に、土壌構造と微生物群集の関係は世界的に注目されており、土壌微生物の機能発現に寄与する基本的な土壌因子に対する知見の要求が高まっている。日本では、特に固体分析を用いた土壌有機-無機相互作用に関する研究について立ち遅れている状況である。このような研究動向の中で本研究は、世界的にも先端的な手法を実施し、上記の国内外の学際領域が要求する知見を提供しうるものである。さらに、土壌に微生物を導入するための資材開発や、これまで環境中に導入しても効果的に発現しなかった有用な微生物機能を活用できる技術展開にも貢献できる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2021 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] An improved method to identify osmium-stained organic matter within soil aggregate structure by electron microscopy and synchrotron X-ray micro-computed tomography2019

    • Author(s)
      Miwa Arai, Go-Ichiro Uramoto, Maki Asano, Katsuyuki Uematsu, KentaroUesugi, Akihisa Takeuchi, Yuki Morono, Rota Wagai
    • Journal Title

      Soil and Tillage Research

      Volume: 191 Pages: 275-281

    • DOI

      10.1016/j.still.2019.04.010

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 磐梯山ジオパークにおける土壌の理化学的特徴2021

    • Author(s)
      渡邊 瑛勇;浅野 眞希;田村 憲司
    • Organizer
      日本ペドロジー学会2021年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 埋没年代の異なる黒ボク土層における有機無機複合体の特徴の比較2021

    • Author(s)
      島田 紘明;和穎 朗太;井上 弦;田村 憲司;浅野 眞希
    • Organizer
      日本ペドロジー学会2021年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] The Characteristics of Soil Organic Matter of Andosols of Forest Sites in Japan using Particle Size Fractionation and STXM NEAFS2019

    • Author(s)
      Eseese V. F., M. Asano, R. Wagai, T. Ohigashi, K. Tamura
    • Organizer
      14th International Conference of the East and Southeast Asia Federation of Soil Science Societies
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 団粒三次元構造内部の有機物を評価する手法の改良:物理構造と炭素動態の関係解明に向けて2019

    • Author(s)
      6.荒井見和, 浦本豪一郎, 諸野祐樹, 浅野眞希, 植松勝之, 上杉健太郎, 竹内晃久, 和穎朗太
    • Organizer
      日本土壌肥料学会2019年度静岡大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 三宅島2000年噴火火山灰堆積地における有機物集積の経時変化2018

    • Author(s)
      浅野眞希、田村憲司、和穎朗太、向井広樹、武市泰男、高木哲一、小野寛太、菅 大暉、高橋嘉夫、上條隆志
    • Organizer
      日本土壌肥料学会2018年度大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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