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  1. 紀要論文
  2. 琉球大学理学部紀要
  3. 66号
  1. 部局別インデックス
  2. 理学部

Mathematical and Biological Considerations on Yield- and Competition-Density Effects in Self-thinning Plant Populations

http://hdl.handle.net/20.500.12000/11817
http://hdl.handle.net/20.500.12000/11817
5a4b25a2-7602-4a86-9d31-b433595bcc33
名前 / ファイル ライセンス アクション
No66p071.pdf No66p071.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2009-08-13
タイトル
タイトル Mathematical and Biological Considerations on Yield- and Competition-Density Effects in Self-thinning Plant Populations
言語 en
作成者 Hagihara, Akio

× Hagihara, Akio

en Hagihara, Akio

萩原, 秋男

× 萩原, 秋男

ja 萩原, 秋男

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 A mathematical model for describing the density effect occurring in self-thinning\npopulations is developed on the basis of the following three basic assumptions: (1)\nthe growth of yield follows the general logistic equation; (2) final yield becomes\nconstant irrespective of initial density; and (3) there exists a functional relationship\nbetween actual and initial densities. The resultant equation takes the same reciprocal form as the reciprocal equation derived from Shinozaki-Kira's theory, i.e., the\nlogistic theory of the C-D effect, which deals with the density effect occurring in nonself-thinning populations. It is, however, recognized that one of the two coefficients is quite different in mathematical interpretation between the two reciprocal\nequations based on the present theory and the logistic theory of the C-D effect, respectively. The present conclusion is consistent with the empirical facts that the reciprocal relationship between yield (or mean phytomass) and density is discernible\nin not only nonself-thinning populations, but also self-thinning populations. The\npresent model is expected to systematically interpret underlying mechanisms be\ntween the density effect, which is observed at a time constant among populations\nvarying in initial density, and self-thinning, which is observed along a time continuum in any given population.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学理学部
言語
言語 eng
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/11817
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0286-9640
収録物識別子タイプ NCID
収録物識別子 AN00250774
収録物名
言語 ja
収録物名 琉球大学理学部紀要
書誌情報
号 66, p. 71-79
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