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Rice terrace expansion by ethnic minorities of the Vietnamese Northern Uplands and their livelihood sustainability

Research Project

Project/Area Number 23520972
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Human geography
Research InstitutionTohoku University

Principal Investigator

ISODA Yuzuru  東北大学, 理学(系)研究科(研究院), 准教授 (70368009)

Co-Investigator(Kenkyū-buntansha) KIM Doo-chul  岡山大学, 大学院環境学研究科, 教授 (10281974)
四本 幸夫  立命館アジア太平洋大学, アジア太平洋学部, 准教授 (50449534)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords山岳地帯 / 棚田 / 農業 / 地域研究 / 人口扶養力 / 少数民族 / GIS / リモートセンシング / ベトナム / 農村地理学 / 稲作 / 単収 / 化学肥料 / 国際研究者交流、ベトナム / 国際情報交換、ベトナム / 国際情報交換、ドイツ / 国際情報交換、ベルギー / 山間地域 / 自給的農業
Research Abstract

Analysis of land use change based on satellite image and farm household survey in upland area of Sapa, Vietnam revealed that (1) rice terrace expanded and roughly doubled since the 1970s and is still expanding; (2) newer rice terraces are developed on steeper slopes; (3) rice yeilds are not necessarily low in those newer paddies, depending on chemical fertilizer use and amount; (4) ethnic minorities in the area adopted hybrid rice that doubled the yield; (5) cash income from tourism and cardamon sales are contributing to modernization of subsistence farming, in buying seeds, fertilizers and machines; (6) despite rapid population growth of 3% per annum for the last 40 year, agricultural extensification and intensification enabled output growth exceeding the population growth.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (25 results)

All 2013 2012 2011 Other

All Journal Article (4 results) Presentation (21 results) (of which Invited: 2 results)

  • [Journal Article] Terraced paddy expansion in Sapa in response to rapid population increase : remote sensing since the 1970s and accuracy assessment based on fieldwork2012

    • Author(s)
      Isoda Y, Nguyen Huu Ngu, Kim DC,他4名
    • Journal Title

      アジア開発途上国との大学・行政機関連携による持続可能社会構築の協力事業、活動報告書(岡山大学大学院環境学研究科)

      Pages: 48-55

    • Related Report
      2013 Final Research Report
  • [Journal Article] Terraced paddy expansion in Sapa in response to rapid population increase: remote sensing since the 1970s and accuracy assessment based on fieldwork2012

    • Author(s)
      Isoda Y, Ubukata F, Maeda M, Hoang Thi Thu Huong, Nguyen An Thinh, Nguyen Huu Ngu, Kim DC
    • Journal Title

      アジア開発途上国との大学・行政機関連携による持続可能社会構築の協力事業、活動報告書(岡山大学大学院環境学研究科)

      Volume: - Pages: 48-55

    • Related Report
      2011 Research-status Report
  • [Journal Article] Verification of robust regression approach in land use classification without ground data : a case of terraced paddy development in Sapa, Vietnam2011

    • Author(s)
      Isoda Y, Kim DC,他2名
    • Journal Title

      地理情報システム講演論文集

      Volume: 20(CD-ROM)

    • Related Report
      2013 Final Research Report
  • [Journal Article] Verification of robust regression approach in land use classification without ground2011

    • Author(s)
      Yuzuru ISODA, HOANG Thi Thu Huong, NGUYEN An Thinh and Doo-Chul KIM
    • Journal Title

      地理情報システム学会講演論文集

      Volume: 20

    • Related Report
      2011 Research-status Report
  • [Presentation] Rice terrace expansion, productivity, and the roles of tourism in Sapa, Vietnam2013

    • Author(s)
      Yuzuru ISODA, NGUYEN Huu Ngu, NGUYEN Huu Van, Tatsuya KANDA, Yukio YOTSUMOTO, Doo-Chul KIM
    • Organizer
      IGU 2013 Kyoto Regional Conference
    • Place of Presentation
      Kyoto International Conference Center (Kyoto, Japan)
    • Year and Date
      2013-08-09
    • Related Report
      2013 Final Research Report
  • [Presentation] ベトナム北部サパにおける棚田の拡大とその生産性2013

    • Author(s)
      磯田弦・Nguyen Huu Ngu・神田竜也・四本幸夫・Nguyen Huu Van・金枓哲
    • Organizer
      2013年度東北地理学会春季学術大会
    • Place of Presentation
      仙台市戦災復興記念会館(仙台市)
    • Year and Date
      2013-05-19
    • Related Report
      2013 Final Research Report
  • [Presentation] Rice terrace expansion and their productivity in Sapa, Vietnam2013

    • Author(s)
      Yuzuru Isoda, Nguyen Huu Ngu, Yukio Yotsumoto, Nguyen Huu Van, Doo-Chul Kim,他4名
    • Organizer
      LEGATO Conference Hanoi 2013
    • Place of Presentation
      Army Hotel (Hanoi, Vietnam)
    • Year and Date
      2013-04-16
    • Related Report
      2013 Final Research Report
  • [Presentation] ベトナム・サパの少数民族による棚田の拡大についての研究におけるGIS利用2012

    • Author(s)
      磯田弦
    • Organizer
      地理情報システム学会東北支部研究交流会
    • Place of Presentation
      東北大学片平キャンパス(仙台市)
    • Year and Date
      2012-12-11
    • Related Report
      2013 Final Research Report
  • [Presentation] 観光地確立初期における商店の形成2012

    • Author(s)
      四本幸夫, Nguyen Huu Van, Nguyen Huu Ngu,磯田弦,他2名
    • Organizer
      第85回日本社会学会大会
    • Place of Presentation
      札幌学院大学第一キャンパス(札幌市)
    • Year and Date
      2012-11-04
    • Related Report
      2013 Final Research Report
  • [Presentation] Terraced paddy expansion by ethnic minorities in Sapa, Vietnam : Identifying locations and measuring productivity2012

    • Author(s)
      Yuzuru Isoda, Ngu Huu Nguyen, Yukio Yotsumoto, Doo-Chul Kim,他3名
    • Organizer
      International Geographical Conference (IGC) Cologne 2012
    • Place of Presentation
      University of Cologne (Cologne, Germany)
    • Year and Date
      2012-08-30
    • Related Report
      2013 Final Research Report
  • [Presentation] Identifying terraced paddy field expansion with robust regression approach in remote sensing : a case of Sapa, Vietnam2012

    • Author(s)
      Yuzuru ISODA, Doo-Chul KIM,他3名
    • Organizer
      International Scientific Conference on"Sustainable Land Use and Rural Development in Mountain Areas"
    • Place of Presentation
      Hoheheim University (Stuuttgart, Germany)
    • Year and Date
      2012-04-18
    • Related Report
      2013 Final Research Report
  • [Presentation] Terraced paddy expansion in Sapa in response to rapid population increase : remote sensing since the 1970s and accuracy assessment based on fieldwork2012

    • Author(s)
      Yuzuru ISODA, NGUYEN Huu Ngu, Doo-Chul KIM,他4名
    • Organizer
      Symposium on Exchange and Cooperation Programmes for Promotion and Development of the Education, Science and Technology, and Culture of Developing Countries in the Asia-Pacific Region
    • Place of Presentation
      Okayama University International House Lounge (Okayama, Japan)
    • Year and Date
      2012-02-02
    • Related Report
      2013 Final Research Report
  • [Presentation] Terraced paddy expansion in Sapa in response to rapid population increase: remote sensing since the 1970s and accuracy assessment based on fieldwork2012

    • Author(s)
      Isoda Y, Ubukata F, Maeda M, Hoang Thi Thu Huong, Nguyen An Thinh, Nguyen Huu Ngu, Kim DC
    • Organizer
      Symposium on Exchange and Cooperation Programmes for Promotion and Development of the Education, Science and Technology, and Culture of Developing Countries in the Asia-Pacific Region
    • Place of Presentation
      Okayama University (Okayama, Japan)
    • Related Report
      2011 Research-status Report
  • [Presentation] Verification of robust regression approach in land use classification without ground data : a case of terraced paddy development in Sapa, Vietnam2011

    • Author(s)
      Isoda Y, Kim DC
    • Organizer
      第20回地理情報システム学会学術研究発表大会
    • Place of Presentation
      (鹿児島大学、鹿児島市)
    • Year and Date
      2011-10-15
    • Related Report
      2013 Final Research Report
  • [Presentation] ベトナム北部の山間少数民族による棚田開発:予備的調査結果2011

    • Author(s)
      磯田弦・神田竜也・グエン・ホウ・グー・金どぅ哲
    • Organizer
      日本地球惑星科学連合2011年度連合大会
    • Place of Presentation
      (幕張メッセ国際会議場、千葉市)
    • Year and Date
      2011-05-27
    • Related Report
      2013 Final Research Report
  • [Presentation] ベトナム北部の山間少数民族による棚田開発:予備的調査結果2011

    • Author(s)
      磯田弦・神田竜也・グエン・ホウ・グー・金どぅ哲
    • Organizer
      日本地球惑星科学連合2011年度連合大会
    • Place of Presentation
      幕張メッセ国際会議場、千葉市
    • Related Report
      2011 Research-status Report
  • [Presentation] Verification of robust regression approach in land use classification without ground data: a case of terraced paddy development in Sapa, Vietnam2011

    • Author(s)
      Isoda Y, Hoang TTH, Nguyen AT, Kim DC
    • Organizer
      第20回地理情報システム学会学術研究発表大会
    • Place of Presentation
      鹿児島大学、鹿児島市
    • Related Report
      2011 Research-status Report
  • [Presentation] Rice terrace expansion and their productivity in Sapa, Vietnam

    • Author(s)
      Yuzuru Isoda, Nguyen Huu Ngu, Vu Kim Chi, Tatsuya Kanda, Yukio Yotsumoto, Nguyen Huu Van , Nguyen An Thinh , Hoang Thi Thu Huong, Doo-Chul Kim
    • Organizer
      LEGATO Conference Hanoi 2013
    • Place of Presentation
      Hanoi, Vietnam
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Rice terrace expansion, productivity, and the roles of tourism in Sapa, Vietnam

    • Author(s)
      Yuzuru ISODA, NGUYEN Huu Ngu, NGUYEN Huu Van, Tatsuya KANDA, Yukio YOTSUMOTO, Doo-Chul KIM
    • Organizer
      IGU 2013 Kyoto Regional Conference
    • Place of Presentation
      京都
    • Related Report
      2013 Annual Research Report
  • [Presentation] Ethnic majority’s strategies for starting tourism business in ethnic minority areas: the case of Lao Chai village in Northern Vietnam

    • Author(s)
      Yukio Yotsumoto, Tatsuya Kanda, Ngu Huu Nguyen, Van Huu Nguyen, Thi LanHuong Nguyen, Yuzuru Isoda
    • Organizer
      Asia Pacific Conference 2013
    • Place of Presentation
      別府市
    • Related Report
      2013 Annual Research Report
  • [Presentation] Identifying terraced paddy field expansion with robust regression approach in remote sensing: a case of Sapa, Vietnam

    • Author(s)
      Yuzuru ISODA
    • Organizer
      International Scientific Conference on“Sustainable Land Use and Rural Development in Mountain Areas”
    • Place of Presentation
      Hoheheim University, Stuuttgart, Germany
    • Related Report
      2012 Research-status Report
  • [Presentation] Terraced paddy expansion by ethnic minorities in Sapa, Vietnam: Identifying locations and measuring productivity

    • Author(s)
      Yuzuru ISODA
    • Organizer
      International Geographical Conference (IGC) Cologne 2012
    • Place of Presentation
      University of Cologne, Germany
    • Related Report
      2012 Research-status Report
  • [Presentation] ベトナム・サパの少数民族による棚田の拡大についての研究におけるGIS利用

    • Author(s)
      磯田 弦
    • Organizer
      地理情報システム学会東北支部研究交流会
    • Place of Presentation
      東北大学片平キャンパス、仙台市
    • Related Report
      2012 Research-status Report
  • [Presentation] 観光地確立初期における商店の形成

    • Author(s)
      四本幸夫
    • Organizer
      第85回日本社会学会大会
    • Place of Presentation
      札幌学院大学第一キャンパス(札幌市)
    • Related Report
      2012 Research-status Report
  • [Presentation] Rice terrace expansion and their productivity in Sapa, Vietnam

    • Author(s)
      Yuzuru ISODA
    • Organizer
      LEGATO Conference Hanoi 2013
    • Place of Presentation
      Army Hotel, Hanoi Vietnam
    • Related Report
      2012 Research-status Report
    • Invited

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Published: 2011-08-05   Modified: 2019-07-29  

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