ダウンロード数: 609
タイトル: | A model of root elongation by dynamic contact interaction |
著者: | Nakashima, Hiroshi https://orcid.org/0000-0001-8096-6398 (unconfirmed) Fujita, Yasuhito Tanaka, Hiroaki Miyasaka, Juro |
著者名の別形: | 中嶋, 洋 藤田, 穏人 田中, 宏明 宮坂, 寿郎 |
キーワード: | computational mechanics discrete element method physics model root elongation root growth root-soil system |
発行日: | 24-Oct-2008 |
出版者: | Japanese Society for Root Research |
引用: | Hiroshi Nakashima, Yasuhito Fujita, Hiroaki Tanaka and Juro Miyasaka 2008. A model of root elongation by dynamic contact interaction . Plant Root 2: 58-66 . |
誌名: | Plant Root |
巻: | 2 |
開始ページ: | 58 |
終了ページ: | 66 |
抄録: | Recent findings on the functions of roots from the chemical and biological standpoints have strengthened the need for research on the mechanisms of root growth by physical and mathematical approaches. This study was aimed at developing a root growth model, based on dynamic interactions between the root and its ambient environment. As a tool for modelling, we employed the discrete element method (DEM) with the assumption that root growth could be expressed in terms of dynamic interactions between growing root elements and soil elements. Using a corresponding time scale, the results of a DEM simulation indicated a sufficiently accurate shape of root elongation, which could be verified by a root growth experiment. Moreover, a comparison of fractal dimensions from DEM results and experimental results showed almost similar values of 1.0, which is the dimension of a line. |
著作権等: | Copyright (c) 2008 Japanese Society for Root Research |
URI: | http://hdl.handle.net/2433/66360 |
DOI(出版社版): | 10.3117/plantroot.2.58 |
関連リンク: | http://joi.jlc.jst.go.jp/JST.JSTAGE/plantroot/2.58 |
出現コレクション: | 学術雑誌掲載論文等 |
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