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Develop a new wind erosion assessment system based on geometric characteristics of plants

Research Project

Project/Area Number 21K17880
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 63010:Environmental dynamic analysis-related
Research InstitutionTottori University

Principal Investigator

Liu Jiaqi  鳥取大学, 乾燥地研究センター, 特命助教 (80823898)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords風食 / 飛砂 / 流体力学 / 土壌侵食 / 風洞実験
Outline of Research at the Start

近年、中国では激しい砂塵嵐(ダスト)が深刻な問題となっている。そのため中国政府は、ダストの主要発生源と考えられる内モンゴル自治区において植林による緑化を推進しているが、劣化した土地に緑を造成することは容易ではない。土地の復元のためには、その土地に元々存在する植物の特性を正確に把握し、飛砂抑制に効果的な在来植物を見出すことが重要である。本研究では、有用な植物を選択するための科学的根拠を提示するため、申請者が開発した小型境界層風洞を用いて、飛砂発生地の地表面状態と風の流れを再現し、植物種によって異なる植物体の形状・遮蔽率・柔軟性がダストの抑制にどのように影響するのかを明らかにすることを目的とする。

Outline of Final Research Achievements

Wind-blown sand was measured in the Mongolian semi-arid grassland by the omnidirectional wind erosion detection device, which is now on patent pending. The availability of the new device was verified through the field observation. A portable compact wind erosion detection device, which can also measure wind-blown sand flux and wind direction simultaneously, was then developed. The new device guarantees easy maintenance as well as high accuracy of counting the number of sand particles without generating noise. The developed observation systems provide possibilities for elucidating the detailed mechanism of wind-blown sand.
The effects of plant shape and coverage on sand trapping were evaluated by using models as common plants in the dust source regions in a compact wind tunnel equipped with a turbulence generator and a piezoelectric blown-sand meter. The results provide a scientific basis for the selection of effective plant species for the control of blowing sand and dust.

Academic Significance and Societal Importance of the Research Achievements

「小型飛砂風向計測装置およびそれを用いた飛砂風向計測システム」を開発することで野外長期観測における飛砂の発生方位と各方位別の飛砂量が同時に測定でき、設置・メンテナンスをしやすい、小型・軽量化を実現できる。また、砂漠化の要因となる植生と土壌の劣化の監視に特化した砂漠化計測システムの一部としての利用ができる。
草本の形状・遮蔽率・柔軟性の違いによる飛砂の抑制効果の評価結果により、飛砂やダストの発生源において有用な草本の選択が可能になり、将来的には、空気力学的に有用な草本を用いた飛砂の発生源対策や家畜の嗜好性も考慮した総合的な土地利用対策(持続可能性も含めて)に対する提言も期待できる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (21 results)

All 2024 2023 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (13 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results) Funded Workshop (1 results)

  • [Journal Article] Improving vegetation spatial distribution mapping in arid and on coastal dune systems using GPR in Tottori Prefecture (Japan)2023

    • Author(s)
      Gomez Christopher、Liu Jiaqi、Wu Jing、Persendt Frans、Bradak Balazs、Saleh Yousefi、Hadmoko Danang Sri
    • Journal Title

      AUC GEOGRAPHICA

      Volume: 58 Issue: 2 Pages: 238-249

    • DOI

      10.14712/23361980.2023.18

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluating the Sand-Trapping Efficiency of Sand Fences Using a Combination of Wind-Blown Sand Measurements and UAV Photogrammetry at Tottori Sand Dunes, Japan2023

    • Author(s)
      Liu Jiaqi、Wu Jing、Kimura Reiji
    • Journal Title

      Remote Sensing

      Volume: 15 Issue: 4 Pages: 1098-1098

    • DOI

      10.3390/rs15041098

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Use of UAV Photogrammetry for Monitoring Topographic Changes in the Tottori Sand Dunes, Japan2022

    • Author(s)
      Liu Jiaqi 、Kimura Reiji、Wu Jing、Kawai Takayuki
    • Journal Title

      Sand Dune Research

      Volume: 69

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of simulated grazing on sediment trapping by single plants: A wind-tunnel experiment with two grassland species in Mongolia2021

    • Author(s)
      Kinugasa, T., Sagayama, T., Gantsetseg, B., Liu, J. and Kimura, R.
    • Journal Title

      CATENA

      Volume: 202 Pages: 105262-105262

    • DOI

      10.1016/j.catena.2021.105262

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Estimation of dry vegetation cover and mass from MODIS data: Verification by roughness length and sand saltation threshold2021

    • Author(s)
      Wu Jing、Kurosaki Yasunori、Gantsetseg Batdelger、Ishizuka Masahide、Sekiyama Tsuyoshi Thomas、Buyantogtokh Batjargal、Liu Jiaqi
    • Journal Title

      International Journal of Applied Earth Observation and Geoinformation

      Volume: 102 Pages: 102417-102417

    • DOI

      10.1016/j.jag.2021.102417

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Aerodynamic characteristics over fine-grained gravel surfaces in a wind tunnel2021

    • Author(s)
      Liu, J., Kimura, R. and Wu, J.
    • Journal Title

      Front. Earth Sci.

      Volume: 9 Pages: 758910-758910

    • DOI

      10.3389/feart.2021.758910

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 分光放射と放射温度を用いたコムギの生長モニタリング2024

    • Author(s)
      中尾 里菜, 木村 玲二, 杉浦 李果, 石井 孝佳, 劉 佳啓
    • Organizer
      生物と気象
    • Related Report
      2023 Annual Research Report
  • [Presentation] RTK-GNSSを使ったドローン空撮測量による天然記念物鳥取砂丘の砂面変動解析2024

    • Author(s)
      岸本 晃弥, 安部 聡, 開昭 仁, 劉 佳啓, 木村 玲二, 高山 成
    • Organizer
      生物と気象
    • Related Report
      2023 Annual Research Report
  • [Presentation] 日本砂丘学会奨励賞, 飛砂の物理過程を再現できる小型風洞の開発と砂丘の飛砂現象の評価法に関する研究2023

    • Author(s)
      劉佳啓
    • Organizer
      日本砂丘学会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Effects of Sand Fences on Sand Movement at Tottori Sand Dunes, Japan2023

    • Author(s)
      Jiaqi Liu1, Jing Wu, Reiji Kimura
    • Organizer
      International Conference on Aeolian Research
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 地上設置型太陽光発電パネル群周りの風環境に関する実験的検討2023

    • Author(s)
      田川 公太朗, 劉 佳啓, 木村 玲二
    • Organizer
      農業環境工学関連学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] イネコムギの砂地圃場における形質調査2023

    • Author(s)
      杉浦 李果, 中尾 里菜, 樽谷 英賢, マリエンティ テティ , 劉 佳啓, 岡本 龍史, 木村 玲二, 石井 孝作
    • Organizer
      中国地区育種談話会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Effectiveness of sand fences on preventing wind-blown sand at Tottori Sand Dune2022

    • Author(s)
      Liu Jiaqi, Kimura Reiji, Wu Jing
    • Organizer
      Japan Geoscience Union Meeting 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Structure characteristics of airflow and blown sand flux over fine-grained gravel surfaces in wind tunnel2021

    • Author(s)
      Liu Jiaqi、Kimura Reiji、Wu Jing
    • Organizer
      日本地球惑星科学連合
    • Related Report
      2021 Research-status Report
  • [Presentation] Estimation of non-photosynthetic vegetation amount in the northern Gobi Desert using MODIS satellite2021

    • Author(s)
      Wu Jing、Kurosaki Yasunori、Batdelger Gantsetseg、Buyantogtoh Batjargal、Masahide Ishizuka、Sekiyama Thomas、Liu Jiaqi
    • Organizer
      日本地球惑星科学連合
    • Related Report
      2021 Research-status Report
  • [Presentation] Monitoring topography changes at the Tottori Sand Dune using UAV, SfM and GIS techniques2021

    • Author(s)
      Liu Jiaqi、Kimura Reiji、Wu Jing
    • Organizer
      日本写真測量学会令和3年度秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] UAV application for topographic changes detection at Tottori sand dunes2021

    • Author(s)
      Liu Jiaqi、Kimura Reiji、Wu Jing
    • Organizer
      中国・四国の農業気象
    • Related Report
      2021 Research-status Report
  • [Presentation] Inhibiting effects of plant shapes and coverage on wind erosion examined by wind tunnel experiments2021

    • Author(s)
      Liu Jiaqi、Kimura Reiji
    • Organizer
      American Geophysical Union
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Improved estimations of dry vegetation cover and mass using MODIS data at a dust hotspot in the Gobi Desert2021

    • Author(s)
      Wu Jing、Kurosaki Yasunori、Batdelger Gantsetseg、Buyantogtoh Batjargal、Masahide Ishizuka、Sekiyama Thomas、Liu Jiaqi
    • Organizer
      American Geophysical Union
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 小型飛砂風向計測装置及びそれを用いた飛砂風向計測システム2022

    • Inventor(s)
      劉佳啓、木村玲二、村松隆司、笠田洋文
    • Industrial Property Rights Holder
      劉佳啓、木村玲二、村松隆司、笠田洋文
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-184512
    • Filing Date
      2022
    • Related Report
      2022 Research-status Report
  • [Funded Workshop] International Conference of Aeolian Research2023

    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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