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Sustainable land management to mitigate soil erosion and sediment yield in the Upper Blue Nile Basin

Research Project

Project/Area Number 25257417
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Environmental agriculture(including landscape science)
Research InstitutionTottori University

Principal Investigator

TSUNEKAWA Atsushi  鳥取大学, 乾燥地研究センター, 教授 (60227452)

Co-Investigator(Kenkyū-buntansha) Haregeweyn N  鳥取大学, 国際乾燥地研究教育機構, 特命准教授 (30754692)
DAGNACHEW AKLOG  鳥取大学, 教育支援・国際交流推進機構, 准教授 (40403381)
Project Period (FY) 2013-10-21 – 2018-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥43,030,000 (Direct Cost: ¥33,100,000、Indirect Cost: ¥9,930,000)
Fiscal Year 2017: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2016: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2015: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2014: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2013: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Keywords土壌侵食 / 土壌流亡 / 持続可能な土地管理 / 青ナイル川流域 / エチオピア / 対照流域法 / 流出係数 / トレンチ / 青ナイル川 / 小流域
Outline of Final Research Achievements

Field experiments and model simulation were conducted to evaluate the effects of soil and water conservation interventions in the Upper Blue Nile Basin of Ethiopia. Soil and water conservation measures that have high runoff reduction effects were a soil bund combined with a vegetation strip installed on cultivated land and trenches installed on grazing grassland. The runoff reduction effects were found to be enhanced by combining various measures of soil and water conservation. In addition, small-scale farmers’ perceived soil erosion severity and adoption of soil and water conservation technologies were conditioned by socio-economic, biophysical, institutional and farm related factors. These findings allow deriving policy recommendations to enhance voluntary uptake of soil and water conservation technologies by small-scale farmers.

Academic Significance and Societal Importance of the Research Achievements

深刻な土壌侵食が進行する当該地域において、土壌・水保全策の効果および土壌・水保全技術の導入に関して高い学術的知見を広めた。フィールド観測から現地の環境に即した流出曲線指標(Curve Number)値をモデルに適用することにより、今後の土壌・水保全策の検討の際、その精度が向上することが期待される。

Report

(6 results)
  • 2018 Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (14 results)

All 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (4 results) Journal Article (10 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 10 results,  Open Access: 3 results)

  • [Int'l Joint Research] バハルダール大学(エチオピア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] バハルダール大学(エチオピア)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] バハルダール大学(エチオピア)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] バハルダール大学(エチオピア)

    • Related Report
      2014 Annual Research Report
  • [Journal Article] Effects of land use and sustainable land management practices on runoff and soil loss in the Upper Blue Nile basin, Ethiopia2019

    • Author(s)
      Ebabu K, Tsunekawa A, Haregeweyn N, Adgo E, Meshesha DT, Aklog D, Masunaga T, Tsubo M, Sultan D, Fenta AA, Yibeltal M.
    • Journal Title

      Science of the Total Environment

      Volume: 648 Pages: 1462-1475

    • DOI

      10.1016/j.scitotenv.2018.08.273

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Analyzing the variability of sediment yield: A case study from paired watersheds in the Upper Blue Nile basin, Ethiopia2018

    • Author(s)
      Ebabu K, Tsunekawa A, Haregeweyn N, Adgo E, Meshesha DT, Aklog D, Masunaga T, Tsubo M, Sultan D, Fenta AA, Yibeltal M
    • Journal Title

      Geomorphology

      Volume: 303 Pages: 446-455

    • DOI

      10.1016/j.geomorph.2017.12.020

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Efficiency of soil and water conservation practices in different agro-ecological environments in the Upper Blue Nile Basin of Ethiopia2018

    • Author(s)
      Sultan D, Tsunekawa A, Haregeweyn N, Adgo E, Tsubo M, Meshesha DT, Masunaga T, Aklog D, Fenta AA, Ebabu K.
    • Journal Title

      Journal of Arid Land

      Volume: 10(2) Issue: 2 Pages: 249-263

    • DOI

      10.1007/s40333-018-0097-8

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of soil and water conservation interventions on watershed runoff response in a tropical humid highland of Ethiopia2018

    • Author(s)
      Sultan D, Tsunekawa A, Haregeweyn N, Adgo E, Tsubo M, Meshesha DT, Masunaga T, Aklog D, Fenta AA, Ebabu K.
    • Journal Title

      Environmental Management

      Volume: 61(5) Issue: 5 Pages: 860-874

    • DOI

      10.1007/s00267-018-1005-x

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Comprehensive assessment of soil erosion risk for better land use planning in river basins: Case study of the Upper Blue Nile River2017

    • Author(s)
      Haregeweyn, N., Tsunekawa, A., Poesen, J., Tsubo, M., Meshesha, DT., Fenta, AA., Nyssen, J., Adgo, E.
    • Journal Title

      Science of the Total Environment

      Volume: 574 Pages: 95-108

    • DOI

      10.1016/j.scitotenv.2016.09.019

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Analyzing the runoff response to soil and water conservation measures in a tropical humid Ethiopian highland2017

    • Author(s)
      Sultan D, Tsunekawa A, Haregeweyn N, Adgo E, Tsubo M, Meshesha DT, Masunaga T, Aklog D, Ebabu K.
    • Journal Title

      Physical Geography

      Volume: 38(5) Issue: 5 Pages: 423-447

    • DOI

      10.1080/02723646.2017.1302869

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Analyzing the hydrologic effects of region-wide land and water development interventions: a case study of the Upper Blue Nile basin2016

    • Author(s)
      Haregeweyn N, Tsunekawa A, Tsubo M, Meshesha D, Adgo E, Poesen J, Schutt B
    • Journal Title

      Regional Environmental Change

      Volume: 16 Issue: 4 Pages: 951-966

    • DOI

      10.1007/s10113-015-0813-2

    • NAID

      120007124091

    • Related Report
      2016 Annual Research Report 2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Determination of soil erodibility using fluid energy method and measurement of the eroded mass2016

    • Author(s)
      Meshesha DT, Tsunekawa A, Haregeweyn N
    • Journal Title

      Geoderma

      Volume: 284 Pages: 13-21

    • DOI

      10.1016/j.geoderma.2016.08.006

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evaluation of kinetic energy and erosivity potential of simulated rainfall using Laser Precipitation Monitor2016

    • Author(s)
      Meshesha D, Tsunekawa A, Tsubo M, Haregeweyn N, Tegegne F
    • Journal Title

      Catena

      Volume: 137 Pages: 237-243

    • DOI

      10.1016/j.catena.2015.09.017

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Soil erosion and conservation in Ethiopia: A review2015

    • Author(s)
      Haregeweyn N, Tsunekawa A, Nyssen J, Poesen J, Tsubo M, Meshesha DT, Schuett B, Adgo E, Tegegne F
    • Journal Title

      Progress in Physical Geography

      Volume: 39(6) Issue: 6 Pages: 750-774

    • DOI

      10.1177/0309133315598725

    • NAID

      120005826120

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research

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Published: 2013-10-24   Modified: 2020-03-30  

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