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ALLOMETRY IN A TREE AND THE TREE FORM

Research Project

Project/Area Number 63560147
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 林学
Research InstitutionFACULTY OF AGRICULTURE, NIIGATA UNIVERSITY

Principal Investigator

KOBAYASHI Shogo  NIIGATA UNIV., FAC. AGRIC., PROFESSOR, 農学部, 教授 (50115028)

Co-Investigator(Kenkyū-buntansha) TAKATA Kazuhiko  NIIGATA UNIV., FAC. AGRIC., PROFESSOR, 農学部, 教授 (00018524)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1989: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1988: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsAllometry / Relative growth / Tree form / Stem form / Crown / Growth gradient / Stem analysis / Presslar's low / 針葉樹 / 樹冠形 / 樹形の形成過程 / 相対生長 / 生長階程 / アロメトリー / 等生長
Research Abstract

The biological concept of stem form is discussed on the basis of the allometric relation between stem diameter and tree height. According to allometric low, relative growth rate of two different parts of an organism, x and y are expected to be proportional or 1/y.dy/dt=beta.1/x.dx/dt In this study, x is the tree height and y is the stem diameter at some cross-sectional area. Relative growth coefficient beta's were calculated for three species of needle-leafed trees. In three species, it became clear that the allometric relation shows two distinct phases on the basis for the form; beta=1 within crown and beta<1 in part of the clear bole except the butt-swelling. Simulation based on the allometric relations could adequately describe process of developing stem form in environmental condition of stand. The allometric analysis was also available for developing the crown of the needle-leafed tree.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 results)

  • [Publications] 小林正吾: "トドマツ人工林木の樹冠における相対生長" 第100回日本林学会大会講演要旨集. 34 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 喜多村基: "針葉樹の樹冠の形成過程について-スギの場合-" 第101回日本林学会大会発表論文集. (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] S.Kobayashi: "Allometry and Tree-form" XIX IUFRO WORLD CONGRESS 4.02. (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] SHOGO KOBAYASHI: "RELATIVE GROWTH ON A CROWN OF TODO FIR" Pre-Trans.100th Mtg. Jpn.For.Soc.(1989), 34.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] MOTOE KITAMURA: "DEVELOPING THE CROWN OF NEEDLE-LEAFED TREE. -CASE OF SUGI-" Trans.101th Mgt.Jpn.For.Soc.(1990).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] SHOGO KOBAYASHI: "ALLOMETRY AND TREE FORM" XIX IUFRO WORLD CONGRESS SESSION 4.02.1990 Aug.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 小林正吾: 日本林学会大会発表論文集. 第1回. (1989)

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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