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Development of ecological research on silicon utilisation by tropical tree species

Research Project

Project/Area Number 26650163
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Ecology/Environment
Research InstitutionKyoto University

Principal Investigator

KITAJIMA KAORU  京都大学, (連合)農学研究科(研究院), 教授 (40721379)

Co-Investigator(Kenkyū-buntansha) KITAYAMA KANEHIRO  京都大学, 農学研究科, 教授 (20324684)
Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords熱帯林樹種 / ケイ素循環 / 植物機能形質 / 森林生態系 / 土壌風化 / 生態系元素循環 / マレーシア / 熱帯低地林 / 熱帯山地林 / 生葉のケイ素濃度 / リターのケイ素濃度 / 物質循環 / 東南アジア / キナバル山 / 土壌ケイ素可給性
Outline of Final Research Achievements

In order to understand the mechanism at which natural forests in the tropics sustainably maintain ecosystem processes, we studied the interaction between dominant tree species and silicon, a critically important element in the process of soil weathering, in lowland and mountain forests in Malaysia. We quantified silicon concentrations in live leaves of dominant tree species and leaf litters periodically sampled from litter traps, and also assessed silicon availability in the upper A-horizon soil. The results showed for the first time that silicon cycling via plants is much more active in lowland compared to mountain forests, suggesting that many lowland tree species have evolved silicon uptake and accumulation as their functional traits, which in turn strongly influence soil weathering and mineralogy.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (8 results)

All 2016 2015 2014 Other

All Int'l Joint Research (1 results) Presentation (7 results)

  • [Int'l Joint Research] Forest Research Institute of Malaysia/The Sabah Parks(マレーシア)

    • Related Report
      2015 Annual Research Report
  • [Presentation] Variation in ecosystem silicon cycling via plants with elevation and bedrock on Mount Kinabalu, Sabah, Malaysia2016

    • Author(s)
      Nakamura, R., Ishizawa, H., Kajino, H., Suzuki, S., Kitayama, K., Kitajima, K., Wagai, R.
    • Organizer
      第63回日本生態学会
    • Place of Presentation
      仙台国際センター (宮城県・仙台)
    • Year and Date
      2016-03-20
    • Related Report
      2015 Annual Research Report
  • [Presentation] Latitudinal and altitudinal gradients of silicon accumulation by forest trees: the potential importance of plants in silicon cycling in lowland tropical forests2016

    • Author(s)
      Kitajima, K.
    • Organizer
      第63回日本生態学会
    • Place of Presentation
      仙台国際センター (宮城県・仙台)
    • Year and Date
      2016-03-20
    • Related Report
      2015 Annual Research Report
  • [Presentation] 温帯広葉樹の葉内における部位ごとのケイ素分布 とその種間差2016

    • Author(s)
      梶野浩史、北島薫
    • Organizer
      第63回日本生態学会
    • Place of Presentation
      仙台国際センター (宮城県・仙台)
    • Year and Date
      2016-03-20
    • Related Report
      2015 Annual Research Report
  • [Presentation] Silicon cycling via litterfall in experimental forest stands2015

    • Author(s)
      Kaoru Kitajima & John J. Ewel
    • Organizer
      52nd Annual Meeting of the Association for Tropical Biology and Conservation
    • Place of Presentation
      Honolulu, Hawaii, USA
    • Year and Date
      2015-07-12 – 2015-07-18
    • Related Report
      2014 Research-status Report
  • [Presentation] Silicon cycling via leaf litterfall in experimental tropical forest stands.2015

    • Author(s)
      Kitajima, K., Ewel, J. J.
    • Organizer
      Annual Meeting of the Association for Tropical Biology and Conservation
    • Place of Presentation
      Honolulu (Hawaii, USA)
    • Year and Date
      2015-07-12
    • Related Report
      2015 Annual Research Report
  • [Presentation] 熱帯低地フタバガキ林において樹種分布がケイ素循環に及ぼす影響の空間的解析2015

    • Author(s)
      石澤秀紘、新山馨、飯田佳子、Abdul Rahman, Azizi Ripin, 北島薫
    • Organizer
      第62回日本熱帯生態学会大会
    • Place of Presentation
      鹿児島県鹿児島市鹿児島大学
    • Year and Date
      2015-03-19
    • Related Report
      2014 Research-status Report
  • [Presentation] 熱帯の双子葉植物によるケイ素利用について2014

    • Author(s)
      北島薫
    • Organizer
      第24回日本熱帯生態学会年次大会
    • Place of Presentation
      栃木県宇都宮市宇都宮大学
    • Year and Date
      2014-06-14
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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