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Park pruning prompts a cpmpetitive reversal of an invasive tree in urban forest of Japan

Research Project

Project/Area Number 15K07493
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Forest science
Research InstitutionForest Research and Management Organization

Principal Investigator

Yamashita Naoko  国立研究開発法人森林研究・整備機構, 森林総合研究所, 主任研究員 等 (70353901)

Co-Investigator(Renkei-kenkyūsha) Lei Thomas  龍谷大学, 理工学部, 教授 (00388159)
Project Period (FY) 2015-10-21 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords外来種 / 攪乱 / 適応度 / 萌芽 / 刈り払い / 光環境 / 光合成 / 侵略性 / 人為的攪乱 / 萌芽力
Outline of Final Research Achievements

We compared fitness-related traits of Ligustrum lucidum against two co-occurring native species: a pioneer tree (Mallotus japonicus) and an understory tree (Eurya japonica) under pruned and un-pruned settings. Under simulated forest edge without pruning, Ligustrum had lower stem growth and Amax (maximum photosynthetic rate) than Mallotus, suggesting that native species can competitively suppress invasive expansion. With pruning, however, Ligustrum resprouted vigorously in both spring and summer with significantly higher apical growth and total shoots than Mallotus and Eurya in forest edge and interior, respectively. Also, with similar Amax between resprouts of Ligustrum and Mallotus, we see a reversal of competitive advantage in favor of Ligustrum in forest edge. The competitiveness of Ligustrum clearly increased with human disturbance in the form of park pruning. Such management practice can inadvertently enhance the invasiveness of exotic species in urban settings.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (9 results)

All 2018 2017 2016

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results) Presentation (4 results) (of which Invited: 1 results) Book (3 results)

  • [Journal Article] Park pruning prompts a competitive reversal of an exotic tree, Ligustrum lucidum, in urban forest of Japan2016

    • Author(s)
      Thomas Lei,Naoki Nishikawa, Naoko Yamashita
    • Journal Title

      Urban Ecosystems

      Volume: - Issue: 3 Pages: 1103-1118

    • DOI

      10.1007/s11252-016-0539-z

    • Related Report
      2016 Research-status Report 2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of leaf removal on initial survival and growth of container-grown and bare-root seedlings of Hinoki cypress (Chamaecyparis obtusa).2016

    • Author(s)
      YAMASHITA Naoko、OKUDA Shiro、SUWA Rempei、Thomas Ting Lei、TOBITA Hiroyuki、UTSUGI Hajime、KAJIMOTO Takuya
    • Journal Title

      Forest Ecology and Management

      Volume: 370 Pages: 76-82

    • DOI

      10.1016/j.foreco.2016.03.054

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] スギ・ヒノキコンテナ苗における主軸切断の影響-萌芽枝の成長と樹形変化-2018

    • Author(s)
      山下直子、奥田史郎、中尾勝洋、藤井栄、渡邉仁志、飛田博順、宇都木玄、梶本卓也
    • Organizer
      第129回日本森林学会大会学術講演集 p258.
    • Related Report
      2017 Annual Research Report
  • [Presentation] 滋賀県落葉広葉樹二次林に優占するコナラの用途別材積の推定2017

    • Author(s)
      奥田史郎、山下直子、中尾勝洋、諏訪錬平、田中真哉、高橋裕史、加藤顕、宮浦富保
    • Organizer
      第128回日本森林学会大会学術講演集、P2-134
    • Place of Presentation
      鹿児島大学(鹿児島県鹿児島市)
    • Year and Date
      2017-03-28
    • Related Report
      2016 Research-status Report
  • [Presentation] 滋賀県東近江市における広葉樹二次林の林分構造を規定する要因の検討2017

    • Author(s)
      山下直子、奥田史郎、田中真哉、高橋裕史、中尾勝洋、諏訪錬平、吉永秀一郎
    • Organizer
      日本生態学会第64回全国大会講演要旨、P2-B-050
    • Place of Presentation
      早稲田大学(東京都新宿区)
    • Year and Date
      2017-03-16
    • Related Report
      2016 Research-status Report
  • [Presentation] 東近江の森林資源 ~特徴と利用可能性~2017

    • Author(s)
      山下直子
    • Organizer
      龍谷大学里山研究センターシンポジウム  流域のくらしと奥山・里山 ~愛知川から考える~
    • Place of Presentation
      ピアザ淡海(滋賀県大津市)
    • Year and Date
      2017-03-04
    • Related Report
      2016 Research-status Report
    • Invited
  • [Book] 中山間地における広葉樹の利用と再生ー東近江の森林資源ー (琵琶湖水域圏の現状と可能性―里山学から見るー 牛尾洋也、吉岡祥充、清水万由子 編著)2018

    • Author(s)
      山下直子
    • Total Pages
      338
    • Publisher
      晃洋書房
    • ISBN
      9784771030565
    • Related Report
      2017 Annual Research Report
  • [Book] 里山から中山間地へ 広葉樹の利用と再生に向けて(奥田史郎、山下直子、藤井栄(編著)「広葉樹の利用と再生を考える~中山間地における広葉樹林の取り扱いについて~」)2018

    • Author(s)
      山下直子
    • Total Pages
      89
    • Publisher
      国立研究開発法人森林研究・整備機構 森林総合研究所関西支所
    • ISBN
      9784905304821
    • Related Report
      2017 Annual Research Report
  • [Book] 広葉樹を育てる「はじめの一歩」(奥田史郎、山下直子、藤井栄(編著)「広葉樹の利用と再生を考える ~中山間地における広葉樹林の取り扱いについて~」)2018

    • Author(s)
      山下直子
    • Total Pages
      89
    • Publisher
      国立研究開発法人森林研究・整備機構 森林総合研究所関西支所
    • ISBN
      9784905304821
    • Related Report
      2017 Annual Research Report

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Published: 2015-10-21   Modified: 2019-03-29  

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