A QUANTITATIVE ANALYSIS OF PLANT FORM-THE PIPE MODEL THEORY : II. FURTHER EVIDENCE OF THE THEORY AND ITS APPLICATION IN FOREST ECOLOGY

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Author(s)

    • Shinozaki K. SHINOZAKI Kichiro
    • Department of Biology, Facuity of Science, Osaka City University : (Present address) Department of Physics, Science Education Institute of Osaka
    • YODA Kyoji
    • Department of Biology, Facuity of Science, Osaka City University
    • HOZUMI Kazuo
    • Department of Biology, Facuity of Science, Osaka City University
    • KIRA Tatuo
    • Department of Biology, Facuity of Science, Osaka City University

Abstract

To test the applicability of the pipe model theory to actual tree form, the frequency distribution of the thickness of woody organs in a tree was examined in 10 different species. The frequency f(D) of a certain diameter class D proved to have a definite pattern of distribution in the root, branch and trunk respectively, with only a little difference between the species. The obtained f(D)〜D curves showed that a root system could well be approximated by the assemblage of many pipes of unit thickness, a trunk by a few cones piled up one upon another, and a branch system by a geometric model intermediate between the two. The results were well consistent with the pipe model theory of tree form. As an application of the theory in forest ecology, a new method for estimating the amounts of leaves or branches of trees and stands was also proposed, based on the direct proportionality found between those amounts and the cross-sectional area of the trunk at the height just below the lowest living branch.

Journal

  • JAPANESE JOURNAL OF ECOLOGY

    JAPANESE JOURNAL OF ECOLOGY 14(4), 133-139, 1964

    The Ecological Society of Japan

Cited by:  26

Codes

  • NII Article ID (NAID)
    110001881234
  • NII NACSIS-CAT ID (NCID)
    AN00193852
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    0021-5007
  • NDL Article ID
    8393328
  • NDL Source Classification
    ZR3(科学技術--生物学--植物)
  • NDL Call No.
    Z18-43
  • Data Source
    CJPref  NDL  NII-ELS  J-STAGE 
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