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Study on effects of changes in rainfall distribution pattern on soils of arable land and development of technologies for reducing risks.

Research Project

Project/Area Number 17K08008
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Rural environmental engineering/Planning
Research InstitutionTokyo University of Agriculture

Principal Investigator

SUZUKI Shinji  東京農業大学, 地域環境科学部, 教授 (00459710)

Co-Investigator(Kenkyū-buntansha) 渡邉 文雄  東京農業大学, 地域環境科学部, 教授 (20256647)
岡澤 宏  東京農業大学, 地域環境科学部, 教授 (30385504)
伊藤 博武  東京農業大学, 生物産業学部, 教授 (50307683)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords気候変動 / 干ばつ / 表面湛水 / 短時間強雨 / 土壌侵食 / 土壌水分動態 / 吸水度 / 誘電土壌水分センサ / 土壌の浸潤特性 / 広域解析 / 裸地 / 降雨強度 / 湛水 / 降雨
Outline of Final Research Achievements

Frequency of both continuous no-rain days which cause drought for crops and short term intense rain fall which causes soil erosion was found to be significantly increasing. The current study developed an observation method of direct water ponding, a method to identify rainfall intensity causing water ponding, and risk assessment method of surface runoff on bare agricultural land with spatio-temporal resolution. Further, a function of bio macro pore created by crop roots to facilitate infiltration was examined.

Academic Significance and Societal Importance of the Research Achievements

近年の気候変動に伴い,全国的に,作物の生育を脅かす連続干天と,土壌侵食を引き起こすほどの強い雨の頻度がともに増加していることが明らかになった。この研究の過程で,表面湛水が生じるメカニズムを明らかにすることができ,また,どのくらいの強さの雨で土壌侵食が発生するのかを判定する手法や,時間的・空間的に高い解像度で広域的に土壌侵食のリスクを評価する手法を開発した。さらに,これらのリスクを軽減するために,作物根が土壌内に作り出す孔隙に着目し,雨水を積極的に下方へ浸透させる手法について検討した。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (10 results)

All 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Effects of thermal conductivity and diffusivity of a volcanic ash soil in central Ethiopian Rift Valley on soil temperatures2019

    • Author(s)
      Shinji SUZUKI, Keiko IIDUKA, Atsushi SANADA, Hirotake ITO, and Fumio WATANABE
    • Journal Title

      Journal of Arid Land Studies

      Volume: 29 Issue: 3 Pages: 91-101

    • DOI

      10.14976/jals.29.3_91

    • NAID

      130007760708

    • ISSN
      0917-6985, 2189-1761
    • Year and Date
      2019-12-25
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 凍結をともなうオホーツク網走地域の農地における土壌水分の季節変動の特徴2019

    • Author(s)
      鈴木伸治,佐伯ともみ,伊藤博武,渡邉文雄
    • Journal Title

      土壌の物理性

      Volume: 印刷中

    • NAID

      130008030455

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of root distribution pattern between Gramineae and Legume species under various soil and climate condition2018

    • Author(s)
      Shinji SUZUKI, Yukimitsu KOBAYASHI, Fumio WATANABE, Daichi NAKAGAWA, Taisuke IZUMIKAWA
    • Journal Title

      Journal of Arid Land Studies

      Volume: 28 Issue: S Pages: 189-192

    • DOI

      10.14976/jals.28.S_189

    • NAID

      130007595052

    • ISSN
      0917-6985, 2189-1761
    • Year and Date
      2018-12-25
    • Related Report
      2018 Research-status Report
    • Open Access
  • [Presentation] Study on long term trends of intense rainfall in Tokyo, Japan which causes water ponding.2019

    • Author(s)
      Suzuki, S., Aoki, M., Mitani, E., Suzuki, R., and Watanabe, F.
    • Organizer
      Proceedings of the 3rd Agriculture and Climate Change. 24-26 March 2019 Budapest, Hungary, P058.
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 湛水発生のメカニズムの検討と作物根が及ぼす影響に関する研究.2019

    • Author(s)
      鈴木綾太・鈴木伸治・渡邉文雄
    • Organizer
      日本沙漠学会第30回学術大会講演要旨集, 46-47.
    • Related Report
      2019 Annual Research Report
  • [Presentation] 近年の降水パターンの変化が農地に及ぼす影響-速報-2019

    • Author(s)
      鈴木伸治
    • Organizer
      日本熱帯農業学会第126回講演会, 2019年11月23-24日, 宮古島市マティダ市民劇場
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Study on long term trends of intense rainfall in Tokyo, Japan which causes water ponding.2019

    • Author(s)
      Shinji SUZUKI, Masato AOKI, Eri MITANI, Ryota SUZUKI and Fumio WATANABE
    • Organizer
      3rd Agriculture and Climate Change
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 我が国の黒ボク土畑を対象とした土壌の極端な乾湿の長期変動傾向の検討2018

    • Author(s)
      鈴木伸治,芥川力也,青木将人,渡邉文雄
    • Organizer
      日本沙漠学会第29回学術大会
    • Related Report
      2018 Research-status Report 2017 Research-status Report
  • [Presentation] 湛水の直接観測手法の開発と湛水を生じさせうる降雨の長期変動傾向の検討2018

    • Author(s)
      鈴木伸治,青木将人,渡邉文雄
    • Organizer
      2018年度土壌物理学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Comparison of Root Distribution Pattern between Gramineae and Legume Species under Various Soil and Climate Condition2018

    • Author(s)
      Shinji SUZUKI, Yukimitsu KOBAYASHI, Fumio WATANABE, Daichi NAKAGAWA, and Taisuke IZUMIKAWA
    • Organizer
      The 13th International Conference on Desert Technology
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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