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Why uneven-aged stands are resistant to wind damage? Integration of canopy dynamics, vibration engineering and wind dynamics

Research Project

Project/Area Number 16K14937
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Forest science
Research InstitutionShizuoka University

Principal Investigator

Mizunaga Hiromi  静岡大学, 農学部, 教授 (20291552)

Co-Investigator(Kenkyū-buntansha) 上村 佳奈  信州大学, 学術研究院農学系, 助教 (40570982)
南光 一樹  国立研究開発法人森林研究・整備機構, その他部局等, 主任研究員 等 (40588951)
内田 孝紀  九州大学, 応用力学研究所, 准教授 (90325481)
Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords多層林 / 林冠 / 風害 / 伝播 / 振動 / 林冠地形 / 林冠構造 / 生育履歴
Outline of Final Research Achievements

There is a long argument that vulnerability against strong wind in uneven-aged forests is less than that in even-aged forests, but few scientific evidences have been found yet. Such limited findings do not sufficiently lead to the conclusions of beneficial aspects in uneven-aged forests in order to reduce wind damage. To overcome the weakness of epidemiological approaches the mechanistic models for the wind damage have developed. However the models have targeted to the simple structured stands, but so far there is no model for complex structured stands. Our objectives are to contribute the the suitable mechanistic model for evaluating the risks in various forest types including uneven-aged forest.We lincaged the canopy topography, growing process of trees and wind velocity distribution, established the model for the propagation process of damages in the stand, and evaluated the resistance of trees including various crown architectures.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2018 2017 2016

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (6 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Interspecific differences in the hierarchical cluster structure of leaves within tree crowns in Indochina2018

    • Author(s)
      4. Mochizuki, T., Marod, D., Trieu, D.T., Mizunaga, H
    • Journal Title

      Tropics

      Volume: 27 Issue: 1 Pages: 1-24

    • DOI

      10.3759/tropics.MS17-07

    • NAID

      130007383364

    • ISSN
      0917-415X, 1882-5729
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] アロメトリーに基づく樹木生成を通したヒノキの耐風性の経年変化の推定2018

    • Author(s)
      南光一樹・鈴木覚・勝島隆史・南野亮子・上村佳奈・水永博己
    • Organizer
      日本森林学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 林冠トポグラフィーに基づく風害リスク評価 SfM技術とLESのリンケージ2018

    • Author(s)
      小谷野開多 水永博己
    • Organizer
      日本森林学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 北方異齢林における風害2018

    • Author(s)
      Kamimura, Kana・Waldron, Kaysandra・Carl, Bergeron・Ruel, Jean-Claude・Mizunaga, Hiromi
    • Organizer
      日本森林学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 大きい林分材積成長量と明るい林床の折り合いのつけかたを探る。2017

    • Author(s)
      水永博己
    • Organizer
      日本森林学会
    • Place of Presentation
      鹿児島大学(鹿児島県・鹿児島市)
    • Year and Date
      2017-03-27
    • Related Report
      2016 Research-status Report
  • [Presentation] 樹木の耐風性に及ぼす樹形や力学特性の影響についての数値実験2017

    • Author(s)
      南光一樹 鈴木覚 藤島隆史 南野亮子 上村佳奈 水永博己
    • Organizer
      日本森林学会
    • Place of Presentation
      鹿児島大学(鹿児島県・鹿児島市)
    • Year and Date
      2017-03-27
    • Related Report
      2016 Research-status Report
  • [Presentation] Does complexity of leaf arrangement moderate the impact of drought stress?2016

    • Author(s)
      Mizunaga Hiromi
    • Organizer
      IUFRO 1.05
    • Place of Presentation
      Little Rock (USA)
    • Year and Date
      2016-05-30
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2019-03-29  

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