• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Methane bubble behaviors in soils and predictive models of methane transport in soils

Research Project

Project/Area Number 19K22921
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 64:Environmental conservation measure and related fields
Research InstitutionHokkaido University (2023)
The University of Tokyo (2019-2022)

Principal Investigator

Hamamoto Shoichiro  北海道大学, 農学研究院, 教授 (30581946)

Co-Investigator(Kenkyū-buntansha) 常田 岳志  国立研究開発法人農業・食品産業技術総合研究機構, 農業環境研究部門, 上級研究員 (20585856)
小島 悠揮  岐阜大学, 工学部, 准教授 (70767475)
Project Period (FY) 2019-06-28 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywordsメタン / バブル態メタン / 水田 / 溶存メタン濃度 / メタンバブル / フラックス / X線CT / メタン動態 / バブル / 動態
Outline of Research at the Start

水田や湿地からのメタン放出を評価する上で,バブル態メタンの動態解明は必要不可欠である.本研究の目的は,バブル態を含むメタンガスの土壌内挙動機構を解明し,メタン生成から地表面放出に至る各プロセスを統合したメタン運命予測モデルを構築することにある.さらに,運命予測モデルを水田や湿地環境にある高有機質土およびその周辺の環境影響評価に適用する.

Outline of Final Research Achievements

The objective of this study was to elucidate the characteristics of methane gas emissions from paddy fields, including bubble-form methane fluxes. Field monitoring conducted in FY2021 and FY2022 showed that bubble-form methane fluxes were higher in the early and late growth stages when the aeration tissue of rice plants was immature or possibly degraded, and that a non-negligible proportion of bubble-form methane against the total methane fluxes The initial application of rice straw was also found to increase the release of bubble-form methane in the early growth stages. Based on the relationship between the amount of bubbles in the soil and the methane fluxes, we proposed a predictive model to estimate the methane flux at different pathways.

Academic Significance and Societal Importance of the Research Achievements

本研究成果から、水田からのバブル態メタン放出の季節変動を明らかにした。従来、水田からのメタン放出は水稲経由が主であると考えられており、本研究成果は水田からのメタン放出機構におけるバブル態メタン放出の重要性を示したもので学術的意義は高い。また、土壌内のバブル存在量を関数とする形態別メタンフラックス予測式を提案した。比較的測定が容易な土壌気相率の連続モニタリングデータから水田におけるメタン放出フラックス予測の可能性を示し、温室効果ガス放出源としての水田の正確な評価に繋がる成果が得られた。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (23 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (15 results) (of which Invited: 2 results)

  • [Int'l Joint Research] University of Peradeniya(スリランカ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Peradeniya(スリランカ)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Diurnal variation in methane emission from a rice paddy due to ebullition2024

    • Author(s)
      Kajiura Masako、Tokida Takeshi
    • Journal Title

      Journal of Environmental Quality

      Volume: 53 Issue: 2 Pages: 265-273

    • DOI

      10.1002/jeq2.20553

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of thermal properties of porous media on local thermal (non-)equilibrium heat transport2023

    • Author(s)
      BANDAI Toshiyuki、HAMAMOTO Shoichiro、RAU Gabriel C、KOMATSU Toshiko、NISHIMURA Taku
    • Journal Title

      Journal of Groundwater Hydrology

      Volume: 65 Issue: 2 Pages: 125-139

    • DOI

      10.5917/jagh.65.125

    • ISSN
      0913-4182, 2185-5943
    • Year and Date
      2023-05-31
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impact of Water Management on Methane Emission Dynamics in Sri Lankan Paddy Ecosystems2023

    • Author(s)
      Lakshani M. M. Tharindi、Deepagoda T. K. K. Chamindu、Li Yuan、Hansen H. F. E.、Elberling Bo、Nissanka Sarath P.、Senanayake Dassanayake M. J. B.、Hamamoto Shoichiro、Babu G. L. Sivakumar、Chanakya Hoysala N.、G. Parameswaran T.、Arunkumar Pandit G.、Sander Bjoern Ole、Clough Timothy J.、Smits Kathleen
    • Journal Title

      Water

      Volume: 15 Issue: 21 Pages: 3715-3715

    • DOI

      10.3390/w15213715

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A new exponential model for predicting soil gas diffusivity with varying degree of saturation2023

    • Author(s)
      M. M. T. Lakshani, T. K. K. Chamindu Deepagoda, Shoichiro Hamamoto, Bo Elberling, Wei Fu, Ting Yang, Jun Fan, Xiaoyi Ma, Timothy Clough, Kathleen M. Smits, T. G. Parameswaran, G. L. Sivakumar Babu, H. Chanakya
    • Journal Title

      Vadose Zone Journal

      Volume: 23 Issue: 1 Pages: 1-15

    • DOI

      10.1002/vzj2.20236

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Adaptability of Early–Winter Direct–Sowing Cultivation of Paddy Rice using Different Seed Coating Types at 11 Locations in Japan2022

    • Author(s)
      鈴木 健策, 柏木 純一, 中島 大賢, 長菅 輝義, 望月 俊宏, 安彦 友美, 古畑 昌巳, 大平 陽一, 千葉 雅大, 木村 利行, 矢野 真二, 阿部 光希, 松田 晃, 齋藤 寛, 笹川 正樹, 髙橋 元紀, 西村 拓, 濱本 昌一郎, 常田 岳志, 西 政佳, 由比 進, 下野 裕之
    • Journal Title

      Japanese Journal of Crop Science

      Volume: 91 Issue: 4 Pages: 291-302

    • DOI

      10.1626/jcs.91.291

    • ISSN
      0011-1848, 1349-0990
    • Year and Date
      2022-10-05
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Increasing measurement throughput of methane emission from rice paddies with a modified closed-chamber method2021

    • Author(s)
      Takeshi Tokida
    • Journal Title

      Journal of Agricultural Meterology

      Volume: 77 Pages: 160-165

    • NAID

      130008023621

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 農地における温室効果ガス動態と土壌ガスの予測モデル検証2023

    • Author(s)
      濱本昌一郎
    • Organizer
      土壌肥料学会北海道支部大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 水田における経路別メタン放出と溶存メタン濃度の経時変化に関する研究2023

    • Author(s)
      濱本昌一郎・ 鶴海遥嘉・ 小早川竜也・ 梶浦雅子・ 常田岳志・ 山﨑琢平・ 西村拓
    • Organizer
      土壌物理学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] インバース法を用いた、水田から放出される形態別メタンフラックスに 関する研究2023

    • Author(s)
      小早川竜也、小野圭介、常田岳志、濱本昌一郎、山﨑琢平、西村拓
    • Organizer
      農業気象学会関東支部大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Seasonal and diurnal variations in methane emissions via plant and ebullition from rice paddies2022

    • Author(s)
      Tatsuya Kobayakawa, Soichiro Hamamoto, Dingwen Cui, Ma Xuping, Masako Kajiura, Takeshi Tokida, Taku Nishimura
    • Organizer
      PAWEES International Conference
    • Related Report
      2022 Research-status Report
  • [Presentation] Seasonal variations in methane emissions via plant and ebullition from rice paddies2022

    • Author(s)
      Tatsuya Kobayakawa, Soichiro Hamamoto, Dingwen Cui, Ma Xuping, Masako Kajiura, Takeshi Tokida, Taku Nishimura
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [Presentation] 水田からの形態別メタン放出の季節変動に関する研究2022

    • Author(s)
      小早川竜也、濱本昌一郎、崔丁文、Ma Xuping、梶浦雅子、常田岳志、西村拓
    • Organizer
      農業農村工学会2022年度大会講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Seasonal variations in methane emissions via plant and ebullition from rice paddies2022

    • Author(s)
      Tatsuya Kobayakawa
    • Organizer
      Tsukuba Global Science Conference
    • Related Report
      2022 Research-status Report
  • [Presentation] 水田からの形態別メタン放出の季節変動に関する研究2022

    • Author(s)
      小早川竜也、濱本昌一郎、崔丁文、Ma Xuping、梶浦雅子、常田岳志、西村拓
    • Organizer
      2022年度(第71回)農業農村工学会大会講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Interaction between Nano-Bubbles and Colloid Particles in Saturated Porous Media under Flowing Condition2020

    • Author(s)
      Takuya Sugimoto, Shoichiro Hamamoto, Taku Nishimura
    • Organizer
      JpGU 2020
    • Related Report
      2020 Research-status Report
  • [Presentation] 飽和多孔質体におけるナノバブル挙動:ナノバブル水の化学的特性  および共存コロイド粒子の影響2020

    • Author(s)
      濱本昌一郎・荻田翔・二瓶直登・竹村貴人・西村拓
    • Organizer
      第68回コロイドおよび界面化学討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] サーモ TDR を用いた水中および飽和土壌中における ファインバブル濃度測定法の検討2020

    • Author(s)
      谷川原龍之介・小島悠揮・関戸遼加・濱本昌一郎・神谷浩二
    • Organizer
      2020年度土壌物理学学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 土壌の間隙構造と物質移動特性2020

    • Author(s)
      濱本昌一郎,大古湧之,西村拓
    • Organizer
      東京大学アイソトープ総合センターイメージングセミナー
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 熱特性測定を応用した地盤環境の可視化技術の開発2020

    • Author(s)
      小島悠輝
    • Organizer
      第35回岐阜地下水環境研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] 封入不飽和状態における多孔質体中のコロイド移動に関する研究2019

    • Author(s)
      大古湧之,濱本昌一郎,杉本卓也,西村拓
    • Organizer
      第54回地盤工学研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] 封入不飽和状態の多孔質体中におけるコロイド移動に関する研究2019

    • Author(s)
      大古湧之,濱本昌一郎,杉本格也,西村拓
    • Organizer
      2019年度農業農村工学会大会講演会
    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-07-04   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi