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Exploring the mechanisms how soil organic matter escapes decomposition and accumulates in the terrestrial surface layer of the earth

Research Project

Project/Area Number 17H01496
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Rural environmental engineering/Planning
Research InstitutionOkayama University

Principal Investigator

Mori Yasushi  岡山大学, 環境生命科学研究科, 教授 (80252899)

Co-Investigator(Kenkyū-buntansha) 松本 真悟  島根大学, 学術研究院農生命科学系, 教授 (00346371)
金子 信博  福島大学, 食農学類, 教授 (30183271)
大澤 和敏  宇都宮大学, 農学部, 教授 (30376941)
辻本 久美子  岡山大学, 環境生命科学研究科, 助教 (80557702)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥43,160,000 (Direct Cost: ¥33,200,000、Indirect Cost: ¥9,960,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2018: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2017: ¥23,790,000 (Direct Cost: ¥18,300,000、Indirect Cost: ¥5,490,000)
Keywords土壌劣化 / マクロポア / 浸透現象 / 炭素固定 / 植生回復
Outline of Final Research Achievements

Soil is the largest terrestrial carbon sotrage and a valuable medium for plant growth, thus conservation of organic soil is essential for ecosystem stability. We found that the physical aspects of pore structure and downward infiltration are strongly related to soil organic matter, and we clarified the mechanisms of soil organic matter accumulation and loss on a watershed scale. Downward infiltration increases soil organic matter, but soil runoff, the major cause of soil degradation, has a canceling effect on it. In addition to CEC and silt content, permeability factors also play a role in the conservation of soil organic matter at the continental level, indicating the importance of physical aspects in a wide area.

Academic Significance and Societal Importance of the Research Achievements

土壌は陸域最大の炭素貯蔵庫であり,土壌管理が原因とされる二酸化炭素の大気への放出は1.1Gtで化石燃料による放出5.5Gtの二割を占める.工業的には二酸化炭素地下貯留技術の技術開発が進んでいるが,これは化石燃料分の軽減策であり,自然環境の劣化分を放置しておいて良いという図式にはならない.土壌中の有機物の蓄積と消失には複雑な因子が絡んでいるが,化学的側面に加えて土壌間隙構造という物理的側面がそれに関わることを示した成果である.生態系保全のために土壌環境を補強すると共に,土壌の有機質化の可能性を示し,二酸化炭素削減のための手段を提供する研究であり社会に対して還元できるところは多い.

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (51 results)

All 2020 2019 2018 2017

All Journal Article (10 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Open Access: 3 results) Presentation (41 results) (of which Int'l Joint Research: 16 results,  Invited: 1 results)

  • [Journal Article] Physicochemical properties of vineyard soils and its relationships with wine grape quality in Osaka, Japan2020

    • Author(s)
      三浦 季子、佐野 修司、三輪 由佳、谷本 秀夫、森 也寸志
    • Journal Title

      Japanese Journal of Soil Science and Plant Nutrition

      Volume: 91 Issue: 6 Pages: 445-450

    • DOI

      10.20710/dojo.91.6_445

    • NAID

      130007955817

    • ISSN
      0029-0610, 2424-0583
    • Year and Date
      2020-12-05
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Organic Matter Clogging Results in Undeveloped Hardpan and Soil Mineral Leakage in the Rice Terraces in the Philippine Cordilleras2020

    • Author(s)
      Kurozumi Tomoyo、Mori Yasushi、Somura Hiroaki、O-How Milagros
    • Journal Title

      Water

      Volume: 12 Issue: 11 Pages: 3158-3158

    • DOI

      10.3390/w12113158

    • NAID

      120006941054

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] EVALUATION OF DRAINAGE PROCESS IN VINEYARD TO OBTAIN BETTER QUALITY OF WINE GRAPE.2020

    • Author(s)
      Mori, Y., Miura, T., & Bui, T. L.
    • Journal Title

      Application of Advanced Technologies in Agriculture

      Volume: 2020 Pages: 57-65

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] When do rice terraces become rice terraces?2019

    • Author(s)
      Yasushi Mori, Masaya Sasaki, Eisei Morioka, Kumiko Tsujimoto
    • Journal Title

      Paddy and Water Environment

      Volume: 17-2 Issue: 3 Pages: 323-330

    • DOI

      10.1007/s10333-019-00727-0

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impacts of Hydrological Changes on Nutrient Transport From Diffuse Sources in a Rural River Basin, Western Japan2019

    • Author(s)
      Ide Jun'ichiro、Takeda Ikuo、Somura Hiroaki、Mori Yasushi、Sakuno Yuji、Yone Yasumichi、Takahashi Erina
    • Journal Title

      Journal of Geophysical Research: Biogeosciences

      Volume: 124 Issue: 8 Pages: 2565-2581

    • DOI

      10.1029/2018jg004513

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Wintering Site Environment for the Nagoya Daruma Pond Frog (<i>Pelophylax porosus brevipodus</i>) in Kurashiki, Okayama Prefecture, Western Japan2019

    • Author(s)
      多田 正和、伊藤 邦夫、齋藤 稔、森 也寸志、福桝 純平、中田 和義
    • Journal Title

      Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering

      Volume: 87 Issue: 2 Pages: I_179-I_187

    • DOI

      10.11408/jsidre.87.I_179

    • NAID

      130007680233

    • ISSN
      1882-2789, 1884-7242
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of agricultural soil erosion control measures in the Nacala Corridor area, Mozambique2018

    • Author(s)
      Kazuhiro Naruo, Watemua. A. Cassimo, Jyunji Koide, Kazutoshi Osawa, Akira Goto
    • Journal Title

      Journal of Arid Land Studies

      Volume: 28 Issue: 2 Pages: 45-58

    • DOI

      10.14976/jals.28.2_45

    • NAID

      130007510199

    • ISSN
      0917-6985, 2189-1761
    • Year and Date
      2018-09-30
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] IDENTIFICATION OF SOIL ERODIBILITIES FOR AN APPLICATION OF WEPP MODEL WITH BIOLOGICAL GROUND COVER BY ALGAE AND FUNGI2018

    • Author(s)
      小島塁, 大澤和敏, 松浦麻希, 藤澤久子, 冨坂峰人, 松井宏之
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 74 Issue: 5 Pages: I_233-I_239

    • DOI

      10.2208/jscejer.74.I_233

    • NAID

      130007607146

    • ISSN
      2185-6648
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 土壌水分特性の考慮による統合水循環モデルとマイクロ波衛星土壌水分量観測手法の同時改良2018

    • Author(s)
      辻本久美子・太田 哲・森 也寸志
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 74(4)

    • NAID

      130007628343

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 人工マクロポアによる雨水の下方浸透促進ー土壌環境と植生回復の試みー2017

    • Author(s)
      森 也寸志
    • Journal Title

      アグリバイオ

      Volume: 1 Pages: 79-81

    • NAID

      40021807568

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] The Effect of Artificial Macropores on the Amount of Organic Matter in Soils and Plant Biomass.2020

    • Author(s)
      Yasushi Mori
    • Organizer
      European Geophysical Union General Assenbly
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Soil moisture estimation using low-cost GPS multipath receiver2020

    • Author(s)
      Yasushi Mori/Hiromitsu Funahashi/Tadaomi Saito/Kosuke Noborio
    • Organizer
      Japan Geophysical Union
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The effect of gas emission from organic matter on the stability of rice terraces structure2020

    • Author(s)
      Yasushi Mori/Mayuka Kashi/Tomoyo Kurozumi/Bui Thanh Long
    • Organizer
      Japan Geophysical Union
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Effect of Pore Structure on Water Infiltration under Different Gravity2020

    • Author(s)
      Yasushi Mori
    • Organizer
      Japan Geophysical Union
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of Macropore Structures on Agricultural Soil's Greenhouse Gases Emission2020

    • Author(s)
      Bui Thanh Long/Yasushi Mori
    • Organizer
      Japan Geophysical Union
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Estimation of correlation between soil organic matter and soil components using neural network2020

    • Author(s)
      Masaki Kiyohiro/Yasushi Mori/Ikumi Kaida
    • Organizer
      Japan Geophysical Union
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Assessment of Soil Quality as Affected by Topography and Farming Practices in the Rice Terraces in Ifugao, the Philippines2020

    • Author(s)
      Tomoyo Kurozumi/Yasushi Mori/Hiroaki Somura/Milagros Ong How/Pearl Basilio Sanchez
    • Organizer
      Japan Geophysical Union
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 土壌有機物によるガスの発生が棚田耕盤の形成と安定に及ぼす影響2020

    • Author(s)
      森 也寸志, 橿 真由香, 黒住知代, 宗村広昭, Milagros O. How
    • Organizer
      日本土壌肥料学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] フィリピン・コルディリェーラの棚田群における土壌環境改善のための農法と農地管理の提案2020

    • Author(s)
      黒住 知代, 森 也寸志, 宗村広昭, Milagros Ong How, Pearl Basilio Sanchez
    • Organizer
      日本土壌肥料学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 棚田における有機物目詰まりによるガス発生と耕盤形成不全の可能性2020

    • Author(s)
      森 也寸志, 橿 真由香, 黒住知代, 宗村広昭, Milagros O. How
    • Organizer
      土壌物理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ニューラルネットワークによる土壌有機物推定と土壌構成要素の相関推定2020

    • Author(s)
      清広 真輝,森 也寸志,開田行美
    • Organizer
      土壌物理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Soil Moisture Estimation Using Amplitude Change of Low-Cost GPS Receiver2020

    • Author(s)
      Yasushi Mori, Tadaomi Saito, Kosuke Noborio
    • Organizer
      米国土壌科学学会
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Greenhouse Gases Emissions and Total Carbon Contents in Agricultural Soils Affected By Macropore Structures2020

    • Author(s)
      BT Long,Yasushi Mori
    • Organizer
      米国土壌科学学会
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Efficient and Sustainable Rice Farming and Land Management with the Assessment of Local Farmers' Perception and Knowledge in the Rice2020

    • Author(s)
      Tomoyo Kurozumi,Yasushi Mor,Hiroaki Somura,Milagros Ong How,Pearl Basilio Sanchez
    • Organizer
      米国土壌科学学会
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Unsaturated Hydraulic Conductivity Estimation from Multi-step Centrifuge Outflow2019

    • Author(s)
      B.T. Long , Y Mori
    • Organizer
      Japan Geophysical Union
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ニューラルネットワークを用いた土壌表層の有機炭素量の予測2019

    • Author(s)
      開田 行美,森 也寸志,珠玖 隆行
    • Organizer
      日本地球惑星科学連合
    • Related Report
      2019 Annual Research Report
  • [Presentation] 畑地における溝切りと作物残渣の挿入が雨水の浸入と土壌侵食に及ぼす影響2019

    • Author(s)
      大澤 和敏、森 也寸志、干川 明
    • Organizer
      日本地球惑星科学連合
    • Related Report
      2019 Annual Research Report
  • [Presentation] 線状型マクロポア導入による表面流出の削減効果2019

    • Author(s)
      清広真輝、森 也寸志、大澤 和敏、干川 明
    • Organizer
      日本地球惑星科学連合
    • Related Report
      2019 Annual Research Report
  • [Presentation] 重力の異なる惑星下における浸透現象2019

    • Author(s)
      森 也寸志
    • Organizer
      日本地球惑星科学連合
    • Related Report
      2019 Annual Research Report
  • [Presentation] 近・中赤外線による土壌炭素の特徴抽出2019

    • Author(s)
      岩崎正義,森 也寸志
    • Organizer
      日本地球惑星科学連合
    • Related Report
      2019 Annual Research Report
  • [Presentation] Centrifuge method for measuring water retention properties of paddy soils using small volume samples2019

    • Author(s)
      Y Mori, BT Long DTT Huyen and Y Yamamoto
    • Organizer
      土壌物理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 重力の違いが浸透現象に与える影響2019

    • Author(s)
      森 也寸志
    • Organizer
      土壌物理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ニューラルネットワークによる土壌有機物と土壌構成要素の相関推定2019

    • Author(s)
      清広真輝、森 也寸志、開田行美
    • Organizer
      土壌物理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Hydrus 2D Application for Simulation of Surface Runoff Reduced by Linear Macropore Installation at Sugarcane Field in Ishigaki Island2019

    • Author(s)
      BT Long, E. MORIOKA, Y. MORI
    • Organizer
      土壌物理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Centrifuge method for measuring water retention properties of soils with small volume samples.2018

    • Author(s)
      Yasushi Mori
    • Organizer
      Japan GeoScience Union
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Linear-Macropore Installation for Reducing Red-soil Erosion at Sugarcane Field -Column experiment toward field application-2018

    • Author(s)
      E. Moriok, Y. Mori, K. Osawa, A. Hoshikawa
    • Organizer
      Japan GeoScience Union
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 岡山県及び広島県における農地被害の特徴報告2018

    • Author(s)
      森也寸志・森岡瑛世・諸泉利嗣・前田守弘・宗村広昭
    • Organizer
      農業農村工学会京都
    • Related Report
      2018 Annual Research Report
  • [Presentation] 線状型マクロポアを用いたサトウキビ畑からの土壌流亡抑制に対する最適管理2018

    • Author(s)
      森岡瑛世,森 也寸志,大澤和敏,干川 明
    • Organizer
      土壌物理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 線状型マクロポア導入による国頭マージの表面流出の削減効果2018

    • Author(s)
      清広真輝,森 也寸志,大澤和敏,干川 明
    • Organizer
      土壌物理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] FTIRを用いた土壌有機物の特徴抽出と含有量推定2018

    • Author(s)
      岩崎正義,森 也寸志
    • Organizer
      土壌物理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 沖縄地方の土壌を対象とした藻菌類の被覆による侵食抑制対策の評価2018

    • Author(s)
      小島塁, 大澤和敏, 松浦麻希, 藤澤久子, 冨坂峰人, 松井宏之
    • Organizer
      平成30年度農業農村工学会大会講演会講演要旨集,
    • Related Report
      2018 Annual Research Report
  • [Presentation] 沖縄県における赤土流出の解析を目的としたWEPPモデルの受食係数の感度評価2018

    • Author(s)
      町田元, 大澤和敏, 松井宏之
    • Organizer
      第69回農業農村工学会関東支部大会講演会講演要旨集
    • Related Report
      2018 Annual Research Report
  • [Presentation] Effects of glucose addition on FDA activity and soil hydraulic properties2017

    • Author(s)
      J. Fukumasu and Y.Mori
    • Organizer
      Japan GeoScience Union
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Linear Macropore Installation in Subtropical Soil to Reduce Surface Flow at Sugarcane Field2017

    • Author(s)
      K.Oka and Y.Mori
    • Organizer
      Japan GeoScience Union
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Soil carbon accumulation process as affected by infiltration pattern2017

    • Author(s)
      Y.Mori and A.Nakayama
    • Organizer
      Japan GeoScience Union
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 人工マクロポアの導入が土壌有機物の損失に与える影響2017

    • Author(s)
      森 也寸志・霜井真彩・金子信博・藤江幸一
    • Organizer
      日本地球惑星科学連合
    • Related Report
      2017 Annual Research Report
  • [Presentation] 衛星搭載マイクロ波放射計を利用した土壌水分量推定に向けた土壌誘電率のモデル化2017

    • Author(s)
      辻本久美子・森 也寸志
    • Organizer
      土壌物理学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 不耕起栽培と線状型マクロポアを用いた沖縄県石垣島における赤土流出抑制対策2017

    • Author(s)
      岡香菜子・森 也寸志・大澤和敏・干川 明
    • Organizer
      土壌物理学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 線状型マクロポア導入によるサトウキビ畑からの流亡削減2017

    • Author(s)
      森岡瑛世・森 也寸志・大澤和敏・干川 明
    • Organizer
      土壌物理学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 藻菌類の土壌被覆による土壌侵食抑制対策の評価2017

    • Author(s)
      小島塁,大澤和敏,藤澤久子,冨坂峰人,松井宏之
    • Organizer
      農業農村工学会大会講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 沖縄地方の土壌を対象とした藻菌類の被覆による侵食抑制対策試験と解析2017

    • Author(s)
      松浦麻希, 小島塁, 大澤和敏, 藤澤久子,冨坂峰人,松井宏之
    • Organizer
      第68回農業農村工学会関東支部大会講演会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-01-27  

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