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Visualization of water quality transition processes associated with natural disasters and anthropogenic impacts

Research Project

Project/Area Number 18K18202
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 63040:Environmental impact assessment-related
Research InstitutionNagasaki University

Principal Investigator

KAGABU Makoto  長崎大学, 水産・環境科学総合研究科(環境), 准教授 (20608872)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2020: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords島原湧水群 / 金峰山湧水群 / 水質データ / 年代推定 / 地下水汚染 / 水循環 / 水質 / 水年齢 / 人為汚染 / 自然災害 / 地下水流動 / 滞留時間 / 水質変化
Outline of Final Research Achievements

The problem of groundwater contamination, an invisible water resource, involves both natural and anthropogenic factors. Through a multifaceted study of spring waters in two study areas across the Ariake Sea, we were able to understand the mechanism of water quality change after environmental load impact. The residence time of each springs was estimated to be short, ranging from a few years to decades. In both areas, where active water cycles are formed, we succeeded in capturing actual data on the correspondence between changes in land use patterns and water quality changes associated with eruptions, and the manifestation of measures and effects on groundwater contamination. This research contributes to the sustainable use of water and to the construction of a resilient water environment city.

Academic Significance and Societal Importance of the Research Achievements

島原湧水群では雲仙普賢岳の噴火前に広域的な水質調査が行われていた。自然災害インパクトを経験した当地域において、水年齢をふまえた地下水流動の推定を通じ影響評価をすることで、水環境の変遷を科学的に裏付けることができた。また、金峰山湧水群では、全国各地で普遍的に顕在化している硝酸性窒素汚染がみられ、果樹園割合と硝酸性窒素濃度の経年変化を解析したところ、両要素の増加傾向が一致した。しかし、2007年に熊本市が「硝酸性窒素削減計画」を策定した以降は両要素の傾向に一致が見られなくなったことから、対策の成果が徐々に顕在化したことが考えられた。こうした成果はレジリエントな環境構築に資するものと言える。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (17 results)

All 2021 2020 2019 2018

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 3 results) Book (2 results)

  • [Journal Article] Large-scale hydraulic conductivity distribution in an unconfined carbonate aquifer using the ocean tidal propagation2021

    • Author(s)
      Yang Heejun、Tawara Yasuhiro、Shimada Jun、Kagabu Makoto、Okumura Azusa
    • Journal Title

      Hydrogeology Journal

      Volume: 29 Issue: 6 Pages: 2091-2105

    • DOI

      10.1007/s10040-021-02366-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrogeochemical processes and long-term effects of sea-level rise in an uplifted atoll island of Minami-Daito, Japan2020

    • Author(s)
      Yang Heejun、Kagabu Makoto、Okumura Azusa、Shimada Jun、Shibata Tomo、Pinti Daniele L.
    • Journal Title

      Journal of Hydrology: Regional Studies

      Volume: 31 Pages: 100716-100716

    • DOI

      10.1016/j.ejrh.2020.100716

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Seasonal and transient surface displacements in the Kumamoto area, Japan, associated with the 2016 Kumamoto earthquake: implications for seismic-induced groundwater level change2020

    • Author(s)
      Ishitsuka Kazuya、Tsuji Takeshi、Lin Weiren、Kagabu Makoto、Shimada Jun
    • Journal Title

      Earth, Planets and Space

      Volume: 72 Issue: 1

    • DOI

      10.1186/s40623-020-01275-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changes of groundwater flow systems after the 2016 Mw 7.0 Kumamoto earthquake deduced by stable isotopic and CFC-12 compositions of natural springs2020

    • Author(s)
      Ide Kiyoshi、Hosono Takahiro、Kagabu Makoto、Fukamizu Keisuke、Tokunaga Takahiro、Shimada Jun
    • Journal Title

      Journal of Hydrology

      Volume: 583 Pages: 124551-124551

    • DOI

      10.1016/j.jhydrol.2020.124551

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Describing coseismic groundwater level rise using tank model in volcanic aquifers, Kumamoto, southern Japan2020

    • Author(s)
      Kagabu Makoto、Ide Kiyoshi、Hosono Takahiro、Nakagawa Kei、Shimada Jun
    • Journal Title

      Journal of Hydrology

      Volume: 582 Pages: 124464-124464

    • DOI

      10.1016/j.jhydrol.2019.124464

    • NAID

      120006988326

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Visit to valuable water springs (126) Valuable water springs in Shimabara Peninsula (Revisit)2019

    • Author(s)
      KAGABU Makoto
    • Journal Title

      Journal of Groundwater Hydrology

      Volume: 61 Issue: 3 Pages: 227-240

    • DOI

      10.5917/jagh.61.227

    • NAID

      130007805278

    • ISSN
      0913-4182, 2185-5943
    • Year and Date
      2019-08-31
    • Related Report
      2019 Research-status Report
  • [Presentation] 地下水年代推定の高精度化に向けた異分野横断型アプローチの試み2021

    • Author(s)
      利部 慎・小嶋紳介・濵﨑みなみ・高尾雄二
    • Organizer
      水文・水資源学会/日本水文科学会 2021年度研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 沖縄本島南部地下ダム流域における地下水の滞留時間と水質の応答特性2021

    • Author(s)
      利部 慎・安元 純・新城竜一
    • Organizer
      日本地下水学会2021年秋季講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 大分県日出町における海底湧水の湧出機構と栄養塩の輸送特性2020

    • Author(s)
      藤島 恵・浅井和見・長谷川和宏・茂木勝郎・野澤 徹・利部 慎
    • Organizer
      日本地下水学会2020年秋季講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 広域地下水流動場での滞留時間分布の実態把握 -85Kr年代トレーサーを用いた熊本地域での実践-2020

    • Author(s)
      利部 慎・嶋田 純・井手 淨・矢野弘道・矢野伸二郎
    • Organizer
      日本地下水学会2020年秋季講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 福岡県うきは市における「地下水マネジメント」への取り組み2019

    • Author(s)
      古川正修・坂本拓二・土岐直大・松本 翔・工藤圭史・日野泰輔・大西恭秀・利部 慎・高良靖之・福永貴士
    • Organizer
      日本地下水学会2019年秋季講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Analysis of Water Quality Change and its Factors Before and After Natural Disasters in the Shimabara Springs2019

    • Author(s)
      Makoto KAGABU, Kei FUJISHIMA
    • Organizer
      AOGS 2019 16th Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Impact Analysis of Land Use Change on Spring Water Quality in Fukuoka Area2019

    • Author(s)
      Kei FUJISHIMA, Makoto KAGABU
    • Organizer
      AOGS 2019 16th Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 島原湧水群における自然災害インパクト後の地下水水質の長期的変化と年代推定の高精度化に向けて2018

    • Author(s)
      利部 慎
    • Organizer
      日本水文科学会2018年講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Tank model analysis of coseismic groundwater-level changes induced by 2016 Kumamoto earthquake2018

    • Author(s)
      Makoto KAGABU, Kiyoshi IDE, Takahiro HOSONO, Kei NAKAGAWA and Jun SHIMADA
    • Organizer
      45th IAH Congress (IAH2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Book] 地下水・湧水の疑問50 みんなが知りたいシリーズ132020

    • Author(s)
      公益社団法人 日本地下水学会
    • Total Pages
      272
    • Publisher
      成山堂書店
    • Related Report
      2020 Research-status Report
  • [Book] 巨大地震が地下水環境に与えた影響2020

    • Author(s)
      嶋田 純、細野 高啓
    • Total Pages
      236
    • Publisher
      成文堂
    • ISBN
      9784792392765
    • Related Report
      2020 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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