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Study on regional heterogeneity and varietal selection in fragile rice ecosystems in Asia

Research Project

Project/Area Number 16H05780
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Crop production science
Research InstitutionThe University of Tokyo

Principal Investigator

Kamoshita Akihiko  東京大学, アジア生物資源環境研究センター, 准教授 (10323487)

Co-Investigator(Kenkyū-buntansha) 櫻井 武司  東京大学, 大学院農学生命科学研究科(農学部), 教授 (40343769)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2018: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Keywords農業生態学 / 農業経済学 / 環境調和型農林水産 / 気候変動 / 環境調和型農林水産業 / 適応策 / 塩水遡上 / 生物多様性 / 水不足
Outline of Final Research Achievements

To assess effects of salinity intrusion triggered by global warming, paddy fields near the estuaries of Red River, Vietnam was studied. Rice production was greatly reduced nearby branch estuary where paddy and aquacultural ponds were not zoned by dykes, whereas yield of paddy close to the dykes in the mainstream estuary was just slightly reduced. Short-duration quality varieties reduced yield in response to salinity compared with hybrid varieties. In the tank irrigated rice in South India (i.e., non-system tank without connecting rivers), drought occurred frequently during 2010-2019, which lead more farmers to dug bore-wells for supplementary irrigation. The tail fields and long duration quality varieties popular in markets tended to yield lower due to drought. In Cambodia, dry season rice cropping with fewer varieties in the flood plain of Tonle Sap spread after the big flood damages in 2011. Mechanization in irrigated paddy and overall labor-saving cultivation became more popular.

Academic Significance and Societal Importance of the Research Achievements

灌漑が十分に整備されておらず、干ばつや洪水の被害が頻発する水田や、海面上昇による塩水遡上を被る沿岸部の水田など、生産基盤の脆弱な熱帯アジアの水田に着目して、気象リスクと域内不均一性とを明らかにし、持続可能な稲作を設計するための知見を得た。条件の悪い環境での生産の改良のための総合的な提案をした。近年米の輸出を急増させてきた3国(インド、ベトナム、カンボジア)であるが、個々の生産現場の状況の違いも描いた。アジア以外の生産基盤の脆弱な地域、例えば、アフリカでの稲作の改良を考える際にも、応用することも可能である。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (26 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (12 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] カンボジア農業開発研究所(カンボジア)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] ベトナム国立農業大学(ベトナム)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] タミルナードゥ農業大学/ケララ農業大学(インド)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] カンボジア農業開発研究所(カンボジア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] タミルナードゥ農業大学(インド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ベトナム国立農業大学(ベトナム)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ベトナム国立農業大学(ベトナム)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] タミルナードゥ農業大学(インド)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] カンボジア農業開発研究所(カンボジア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] ベトナム国立農業大学(ベトナム)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] タミルナードゥ農業大学(インド)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] カンボジア農業開発研究所(カンボジア)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Salinity intrusion reduces grain yield in coastal paddy fields: case study in two estuaries in the Red River Delta, Vietnam2020

    • Author(s)
      Phan L, Kamoshita A
    • Journal Title

      Paddy and Water Environment

      Volume: 18 Issue: 2 Pages: 399-416

    • DOI

      10.1007/s10333-020-00790-y

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Salinity intrusion and rice production in Red River Delta under changing climate conditions2017

    • Author(s)
      Nguyen YTB, Kamoshita A, Dinh VTH, Matsuda H, Kurokura H
    • Journal Title

      Paddy and Water Environment

      Volume: 15 Pages: 37-48

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Residual effects of cultivation methods on weed seed banks and weeds in Cambodia.2016

    • Author(s)
      Kamoshita, A., Ikeda, H., Yamagishi, J., Lor, B., Ouk, M.
    • Journal Title

      Weed Biol. Manag

      Volume: 16 Pages: 93-107

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Agroecological characterization of droughtprone rice production in non-system tanks of South India2020

    • Author(s)
      Kamoshita A, Deshmukh V
    • Organizer
      InterDrought VI
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of on-farm yield variability in coastal paddy in Red River Delta, Vietnam.2019

    • Author(s)
      Phan L, Kamoshita A
    • Organizer
      熱帯農業学会第125回講演会, 2019.3.16~17, 千葉大学(柏).
    • Related Report
      2018 Annual Research Report
  • [Presentation] Analysis of on-farm variability of yield and fertilizer use in coastal paddy in Red River Delta, Vietnam2018

    • Author(s)
      Phan L, Kamoshita A
    • Organizer
      日本作物学会第246回講演会, 2018.9.5~6, 北海道大学(札幌).
    • Related Report
      2018 Annual Research Report
  • [Presentation] Characterization of farmers participating to research project to cope with climate change in Northeast Thailand.2018

    • Author(s)
      Suwanmontri P, Kamoshita A, Jongdee B, Fukai S, Kishino H
    • Organizer
      熱帯農業学会第124回講演会2018.9.29~30, 京都大学(京都).
    • Related Report
      2018 Annual Research Report
  • [Presentation] On-farm manipulation of variety, water and N management to improve rice production in coastal zone of Red River Delta.2018

    • Author(s)
      Phan L, Kamoshita A
    • Organizer
      熱帯農業学会第124回講演会2018.9.29~30, 京都大学(京都).
    • Related Report
      2018 Annual Research Report
  • [Presentation] Salinity impact on economic efficiency of rice and aquaculture production in Rang Dong and Nghia Binh communes, Nam Dinh, Vietnam.2018

    • Author(s)
      Phan L, Sakurai T, Nguyen Y, Kamoshita A
    • Organizer
      熱帯農業学会第124回講演会2018.9.29~30, 京都大学(京都)
    • Related Report
      2018 Annual Research Report
  • [Presentation] Preliminary assessment of spatial variation in environment and management for rice production in coastal areas of Red River Delta, Vietnam2017

    • Author(s)
      ファンルエン, 鴨下顕彦, 三宅太里, グェンイェン
    • Organizer
      第243回日本作物学会講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Preliminary analysis of characteristics of rainfed rice farmers participating to the project for adaptation to climate change in Northeast Thailand2017

    • Author(s)
      スワンモントリーピッシャヤナン, 鴨下顕彦, ジョンディーブンラット, 深井周
    • Organizer
      第243回日本作物学会講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Current status and techniques to cope with variable water availability and damages in world rice ecosystems.2016

    • Author(s)
      Akihiko Kamoshita
    • Organizer
      第241回日本作物学会講演会
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Book] Resilient Asia: Fusion of Traditional and Modern Systems for Sustainable Future (Preliminary assessment of rice production in coastal part of Red River Delta surrounding Xuan Thuy National Park, Vietnam for improving resilience)2018

    • Author(s)
      Kamoshita A, Nguyen YTB, Dinh VTH
    • Total Pages
      196
    • Publisher
      Springer
    • Related Report
      2017 Annual Research Report
  • [Remarks] 世界の持続可能な稲作の調査研究

    • URL

      http://region.anesc.u-tokyo.ac.jp/reseach%20theme.html

    • Related Report
      2018 Annual Research Report

URL: 

Published: 2016-04-21   Modified: 2021-02-19  

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