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Clarification of dominance mechanism of Sasa in the understory -relationship between resource acquiring and growth of individuals-

Research Project

Project/Area Number 21780159
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Forest science
Research InstitutionForestry and Forest Products Research Institute

Principal Investigator

SAITOH Tomoyuki  独立行政法人森林総合研究所, 森林植生研究領域, 主任研究員 (00414483)

Research Collaborator MAKITA Akifumi  秋田県立大学, 生物資源科学部, 教授 (60315596)
SUYAMA Yoshihisa  東北大学, 大学院農学研究科, 准教授 (60282315)
Project Period (FY) 2009 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords森林生態 / 保護 / 保全 / クローナル植物 / 光環境のヘテロ性 / ササ / 成長解析 / クローナルフラグメント / 環境資源量 / 光量子量 / 土壌栄養塩 / ササ類 / クローン識別 / 環境資源量測定 / 資源獲得様式 / 優占メカニズム
Research Abstract

The dense growth of dwarf bamboo creates shade stress against tree regeneration. How can dwarf bamboo grow under deep shade in the understory? To analyze the relations between light conditions and biomass or the growth characteristics of S. palmata, we investigated the canopy-open- ness and biomass at the belt transects set up in the gap-understory continuum. We also analyzed whether the biomass was dependent on light intensity or the distance from the gap. Canopy-openness showed a pattern dependent on the distance from the gap. The biomass peaked at the gap and gradually decreased up to the edges of the gap, while it remained constant in the understory. The biomass did not depend on light intensity. This phenomenon can mainly be interpreted two ways. One is that dwarf bamboo is a shade-tolerant species, and adapts to a low light environment due to its growth characteristics. The second is that S. palmata is subject to physiological integration. The result may indicate that physiological integration among ramets enables a compensatory growth through photoassimilate with connected neighboring ramets.

Report

(5 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (17 results)

All 2012 2011 2009

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (15 results)

  • [Journal Article] チマキザサの現存量および成長特性のギャップから林床にかけての変化2012

    • Author(s)
      齋藤智之、杉田久志、西脇亜也、清和研二
    • Journal Title

      日本森林学会誌

      Volume: 94巻 Pages: 175-181

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] チマキザサの現存量および成長特性がギャップから林内にかけての変化2012

    • Author(s)
      齋藤智之
    • Journal Title

      日本森林学会誌

      Volume: 94 Pages: 175-181

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] ギャッ プから林内にかけて分布するチマキザサ の現存量と成長特性2012

    • Author(s)
      齋藤智之、杉田久志、清和研二
    • Organizer
      第44回種生物学シンポジウム
    • Place of Presentation
      奥琵琶湖マキノパークホテル&セミナーハウス(マキノ町)
    • Year and Date
      2012-12-08
    • Related Report
      2012 Final Research Report
  • [Presentation] Changes in biomass and the growth characteristics of Sasa palmata across the gap-understory continuum2012

    • Author(s)
      Saitoh Tomoyuki
    • Organizer
      10th Clonal Plant Workshop
    • Place of Presentation
      中国
    • Year and Date
      2012-10-14
    • Related Report
      2012 Final Research Report
  • [Presentation] ギャップから林冠下への連続的なチマキザサの現存量と生産構造の変化2012

    • Author(s)
      齋藤智之、杉田久志、西脇亜也、清和研二
    • Organizer
      第123回日本森林学会大会学術講演集
    • Place of Presentation
      宇都宮大学(宇都宮)
    • Year and Date
      2012-03-27
    • Related Report
      2012 Final Research Report
  • [Presentation] ギャップから林冠下への連続的なチマキザサの現存量と生産構造の変化2012

    • Author(s)
      齋藤智之
    • Organizer
      日本森林学会
    • Place of Presentation
      宇都宮大学(栃木県)
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] ミヤコザサを繰り返し地上部刈り取りしたときの応答2012

    • Author(s)
      齋藤智之
    • Organizer
      日本生態学会
    • Place of Presentation
      龍谷大学(滋賀県)
    • Year and Date
      2012-03-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] Changes in biomass and the growth characteristics of Sasa palmata across the gap-understory continuum2012

    • Author(s)
      Saitoh Tomoyuki
    • Organizer
      10th clonal plant workshop
    • Place of Presentation
      Fragrant Hill Hotel(中国北京)
    • Related Report
      2012 Annual Research Report
  • [Presentation] How long does it take for the full recovery after synchronous flowering and death of Sasa kurilensis, a dwarf bamboo? –Estimation based on three decades’ demography2012

    • Author(s)
      Makita Akifumi
    • Organizer
      10th clonal plant workshop
    • Place of Presentation
      Fragrant Hill Hotel(中国北京)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Effects of spatial genet structure on sexual reproduction in monocarpic bamboos2012

    • Author(s)
      Suyama Yoshihisa
    • Organizer
      10th clonal plant workshop
    • Place of Presentation
      Fragrant Hill Hotel(中国北京)
    • Related Report
      2012 Annual Research Report
  • [Presentation] ギャップから林内にかけて分布するチマキザサの現存量と成長特性2012

    • Author(s)
      齋藤智之
    • Organizer
      種生物学シンポジウム
    • Place of Presentation
      奥琵琶湖マキノパークホテル&セミナーハウス(滋賀県高島市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 一斉枯死後のササ群落は何年で回復するのか?チシマザサ実生由来同齢個体群30年間の動態2012

    • Author(s)
      蒔田明史
    • Organizer
      種生物学シンポジウム
    • Place of Presentation
      奥琵琶湖マキノパークホテル&セミナーハウス(滋賀県高島市)
    • Related Report
      2012 Annual Research Report
  • [Presentation] チシマザサ更新個体群に おける20 年目からのクローン競争と成長 の過程2011

    • Author(s)
      齋藤智之、陶山佳久、鈴木準一郎、西脇亜也、蒔田明史
    • Organizer
      第58回日本生態学会大会講演要旨集
    • Place of Presentation
      札幌コンベンションセンター(札幌)
    • Year and Date
      2011-03-09
    • Related Report
      2012 Final Research Report
  • [Presentation] チシマザサ更新個体群における20年目からのクローン競争と成長の過程2011

    • Author(s)
      齋藤友之、陶山佳久、鈴木準一郎、西脇亜也、蒔田明史
    • Organizer
      第58回日本生態学会
    • Place of Presentation
      札幌コンベンションセンター(札幌市)
    • Year and Date
      2011-03-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Clonal dynamics for 28 years after mass flowering in Sasa kurilensis seedling popukation2009

    • Author(s)
      Saitoh Tomoyuki、Suyama Yoshihisa、 Nishiwaki Aya 、Suzuki Jun-ichirou 、 Makita Akifumi
    • Organizer
      9th clonal plant workshop
    • Place of Presentation
      ベルギー
    • Year and Date
      2009-07-03
    • Related Report
      2012 Final Research Report
  • [Presentation] Clone dynamics for 28 years after mass flowering in Sasa kurilensis seedling population2009

    • Author(s)
      齋藤智之、陶山佳久、西脇亜也、鈴木準一郎、蒔田明史
    • Organizer
      9th clonal plant symposium
    • Place of Presentation
      ベルギー国ルーベン
    • Year and Date
      2009-07-02
    • Related Report
      2009 Annual Research Report
  • [Presentation] 一斉開花後28 年間にわ たるチシマザサ実生由来個体群のクロー ン動態2009

    • Author(s)
      齋藤智之、陶山佳久、西脇亜也、鈴木準一郎、蒔田明史
    • Organizer
      第56回日本生態学会大会講演要旨集
    • Place of Presentation
      岩手県立大学(盛岡)
    • Year and Date
      2009-03-19
    • Related Report
      2012 Final Research Report

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Published: 2009-04-01   Modified: 2019-07-29  

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