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Evaluation of the organic matter accumulation effect based on the measurement of water and gas movement inside and outside the artificial macropores using the shaft tillage method

Research Project

Project/Area Number 20K15623
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 41030:Rural environmental engineering and planning-related
Research InstitutionSaga University

Principal Investigator

Tokumoto Ieyasu  佐賀大学, 農学部, 准教授 (80445858)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords人工マクロポア / CO2 / 有機物分解 / 土壌ガス / 黒ボク土 / HP1 / 局所耕うん法 / 選択流 / ガス移動 / 密集根群 / 二酸化炭素ガス
Outline of Research at the Start

農地に人工的に作成した鉛直間隙(人工マクロポア)を用いた局所耕うん法は,土壌有機物(SOM)の蓄積効果が知られている不耕起栽培法の改良法である.その特徴として,人工マクロポア内に形成する密生した根群(密集根群)を介した選択的な水分下方浸透がある.この水分下方浸透に伴うSOM蓄積増加効果の報告はあるが,その検証は十分でなく,人工マクロポア内の局所的な水・ガス移動計測に基づく検証は行われていない.
本研究では,水分・ガス移動の観点からSOM蓄積効果を解明することで,局所耕うん法が及ぼすSOM増加量の影響について検討する.

Outline of Final Research Achievements

By extending the original implementation plan, the following three research outcomes are summarized:
「I. Cultivation experiments using Andisol, II. Relationship between artificial macropores and SOM (Soil Organic Matter) accumulation, III. 2D water movement analysis using Hydrus2D」Using the shaft tillage method, we measured the two-dimensional water flow, evapotranspiration, and CO2 concentration changes in the artificial macropore. To model organic matter decomposition, we developed and evaluated a CO2 concentration measurement system.

Academic Significance and Societal Importance of the Research Achievements

本研究は,局所耕うん法における人工マクロポアが及ぼす水・炭素循環機構の要因を明
らかにする点に学術的意義がある.本研究の成果により,局所耕うん法の地球温暖化軽減効果に繋がるような,人工マクロポア内のガス動態の実態把握が可能になった.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (18 results)

All 2022 2021 2020

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 3 results) Book (1 results)

  • [Journal Article] 放射線教育のためのアプリケーション開発とその実践例2022

    • Author(s)
      徳本家康*, 廣住豊一, 坂井勝, 西脇淳子, 加藤千尋, 渡辺晋生, 溝口勝, 石川洋平
    • Journal Title

      電気学会論文誌A

      Volume: 142 Pages: 300-306

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 土壌水分・塩分センサネットワークを用いた被災農地の復興支援とセンシング技術教育2022

    • Author(s)
      石川洋平, 野口卓朗, 田崎小春, 堀田孝之, 小山真二郎, 徳本家康*
    • Journal Title

      電気学会論文誌A

      Volume: 142 Pages: 307-314

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Application development and practice model for radiation education2022

    • Author(s)
      I. Tokumoto, T. Hirozumi, M. Sakai, J. Nishiwaki, C. Kato, K. Watanabe, M. Mizoguchi, Y. Ishikawa
    • Journal Title

      Electronics and Communication in Japan

      Volume: - Issue: 3

    • DOI

      10.1002/ecj.12373

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 土壌水分・塩分センサネットワークを用いた被災農地の復興支援とセンシング技術教育2022

    • Author(s)
      石川洋平, 野口卓朗, 田崎小春, 堀田孝之, 小山真二郎, 徳本家康
    • Journal Title

      電気学会論文誌

      Volume: 印刷中

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Soil salinity management using a Field Monitoring System (FMS) in tsunami-affected farmlands in Miyagi, Japan2021

    • Author(s)
      I. Tokumoto, K. Chiba, M. Mizoguchi
    • Journal Title

      International Agrophysics

      Volume: 35 Pages: 227-234

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ArduinoとXBeeを用いた土壌水分・塩分センサネットワークの開発-宮城県津波被災農地における土壌水分・塩分の計測事例-2021

    • Author(s)
      石川洋平, 野口卓朗, 宮本英揮, 徳本家康
    • Journal Title

      土壌の物理性

      Volume: 149 Pages: 55-61

    • NAID

      130008143231

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] M5Stack IoT開発ボードを利用した栽培環境の遠隔モニタリング2021

    • Author(s)
      平嶋雄太, 牧貴広, 古藤田信博, 徳本家康, 宮本英揮
    • Journal Title

      土壌の物理性

      Volume: 149 Pages: 63-68

    • NAID

      130008143237

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 局所耕うん法の密集根群における吸水と下方浸透2021

    • Author(s)
      徳本家康*・巻晴行
    • Journal Title

      日本砂丘学会誌

      Volume: 67 Pages: 69-77

    • NAID

      130008034483

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Water and CO2 Gas Flow through High Density Roots in an Artificial Macro-pore for the Shaft Tillage Cultivation Method2022

    • Author(s)
      Koharu Tasaki, Ieyasu Tokumoto, Shujiro Komiya, Kosuke Noborio
    • Organizer
      World Congress of Soil Science (WCSS2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Near-surface Soil Moisture Observation on the Hillslope using Cosmic-ray Neutrons: A Case Study of Landslide Warning System2022

    • Author(s)
      Ieyasu Tokumoto, Yuta Hirashima, Koharu Tasaki, Hideki Miyamoto
    • Organizer
      World Congress of Soil Science (WCSS2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CO2 Gas flow in an Aggregated Soil under the Shaft Tillage Cultivation Method2022

    • Author(s)
      Koharu Tasaki, Ieyasu Tokumoto, Shujiro Komiya, Kosuke Noborio
    • Organizer
      PAWEES2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ArduinoとXBeeを用いた土壌水分・塩分センサーネットワークの開発および 津波被災農地への適用事例2021

    • Author(s)
      田崎小春・石川洋平・野口卓朗・徳本家康
    • Organizer
      農業農村工学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 局所耕うん法における人工マクロポアが与えるCO2ガス動態の影響2021

    • Author(s)
      田崎小春・徳本家康・小宮秀治郎・登尾浩助・森由貴子
    • Organizer
      土壌物理学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 局所耕うん法の人工マクロポア内外の水分移動計測に基づく吸水量解析2020

    • Author(s)
      徳本家康・田崎小春・藤巻晴行
    • Organizer
      農業農村工学会
    • Related Report
      2020 Research-status Report
  • [Presentation] DNDC-Riceモデルの水分移動計算の検証と課題2020

    • Author(s)
      松尾正菜・徳本家康・麓多門・片柳薫子
    • Organizer
      土壌物理学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 膨張性ポリウレタン発泡剤を用いた石礫を含む土壌採取法の検討2020

    • Author(s)
      原菜月・五藤慎仁・徳本家康
    • Organizer
      土壌物理学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 局所耕うん法の密集根群を介した土壌水分移動の解析2020

    • Author(s)
      田崎小春・高木健伸・徳本家康
    • Organizer
      土壌物理学会
    • Related Report
      2020 Research-status Report
  • [Book] Dr. Doroemon’s Exciting Lecture “The Wonder of Soil”2020

    • Author(s)
      M. Mizoguchi, C. Kato, M. Sakai, J. Nishiwaki, I. Tokumoto, T. Hirozumi, K. Watanabe
    • Total Pages
      28
    • Publisher
      Toho News Service
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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