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Estimation on supply-demand balance of agricultural water in the Kingdom of Bhutan and development of small-scale water reservoir facilities utilizing terraced topography

Research Project

Project/Area Number 17H04632
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Rural environmental engineering/Planning
Research InstitutionShimane University

Principal Investigator

NATSUKA Isamu  島根大学, 生物資源科学部, 名誉教授 (90379694)

Co-Investigator(Kenkyū-buntansha) 小林 範之  愛媛大学, 農学研究科, 教授 (00314972)
石井 将幸  島根大学, 学術研究院環境システム科学系, 准教授 (50293965)
上野 和広  島根大学, 学術研究院環境システム科学系, 助教 (60560167)
長谷川 雄基  香川高等専門学校, 建設環境工学科, 助教 (70797092)
佐藤 周之  高知大学, 教育研究部自然科学系農学部門, 教授 (90403873)
佐藤 嘉展  愛媛大学, 農学研究科, 准教授 (90414036)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2019: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2018: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywordsブータン王国 / 小規模貯水施設 / 農業用水需給バランス / 棚田地形 / 用水計画
Outline of Final Research Achievements

In this study, we developed a construction method for small-scale reservoirs that can be easily applied in developing countries, is economical, and has stability including earthquake resistance. As a fundamental research on reservoir construction technology, we have conducted research on the use of bentonite. In order to solve problems related to the use of stable water reservoir facilities, such as the management of swelling characteristics and strength properties of bentonite, we evaluated the types of bentonite, the base material used to mix bentonite with soil under certain conditions in laboratory tests, the rate of bentonite addition, and the physical and mechanical properties of the soil. The permeability of the bentonite mixture under the conditions confirmed in this experiment was evaluated, and it was confirmed that the mixing conditions were sufficient for practical use.

Academic Significance and Societal Importance of the Research Achievements

本研究で築造した貯水池については,現地カウンターパートによる漏水や貯水位の異常などの継続的な監視を続け,貯水開始後1年を経過しても異常は確認できなかった。ベントナイトを利用した貯水施設の築造技術について,実用的な配合条件を確認できたことが,本研究の大きな学術的意義である。また,DOA主導で当研究グループの助言のもと,新たなため池の築造を行い,現地技術者への技術の普及の可能性を確認することができた。よって,本研究課題の主目的となる発展途上国における小規模ため池の築造技術の開発と社会実装を実現できたことが,本研究で得られた有益な社会的意義である。

Report

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

    (6 results)

All 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] CONSTRUCTION OF EARTH FILL STRUCTURE FOR SMALL FARM POND BY USING BHUTANESE TRADITIONAL WALL MAKING METHOD2019

    • Author(s)
      UENO Kazuhiro, NATSUKA Isamu, SATO Shushi, ONJO Norio
    • Journal Title

      International Journal of GEOMATE

      Volume: 17(60) Issue: 60 Pages: 156-161

    • DOI

      10.21660/2019.60.8329

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 開発途上国で持続可能な小規模水源施設を実現するために2018

    • Author(s)
      石井将幸,長束勇,佐藤周之,佐藤嘉展,長谷川雄基,上野和広
    • Journal Title

      水土の知

      Volume: 86(10) Pages: 21-24

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ダムと私2018

    • Author(s)
      長束勇
    • Journal Title

      ダム工学

      Volume: 28(1) Pages: 1-5

    • NAID

      40021512621

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ブータン王国における貯水施設の補修改修に関する研究2018

    • Author(s)
      長束勇
    • Journal Title

      農業農村工学会農業用ダム研究会報告書

      Volume: 2018 Pages: 113-124

    • Related Report
      2017 Annual Research Report
  • [Presentation] ブータン王国の伝統的技術を用いて築造した貯水池の追跡調査2018

    • Author(s)
      上野和広,長束勇,佐藤周之,園城典雄
    • Organizer
      平成30年度農業農村工学会大会講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Construction of Earth Fill Structure for Small Farm Pond by using Bhutanese Traditional Wall Making Method2018

    • Author(s)
      UENO Kazuhiro, NATSUKA Isamu, SATO Shushi, ONJO Norio, Karma Tshethar and Kelzang Tenzin
    • Organizer
      8th Int. Conf. on Geotechnique, Construction Materials and Environment,Kuala Lumpur, Malaysia, Nov. 20-22, 2018, ISBN: 978-4-909106001 C3051
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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

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