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林业科学 ›› 2000, Vol. 36 ›› Issue (6): 100-103.doi: 10.11707/j.1001-7488.20000624

• 论文及研究报告 • 上一篇    下一篇

木材密度曲线的分形分析

江泽慧 费本华 阮锡根   

  1. 中国林科院木材工业研究所,北京100091;南京林业大学基础部,南京210037
  • 收稿日期:1999-11-01 修回日期:1900-01-01 出版日期:2000-11-25 发布日期:2000-11-25

THE FRACTAL ANALYSIS OF WOOD DENSITY CURVE

Jiang Zehui,Fei Benhua,Ruan Xigen   

  1. Research Institue of Wood Industry, CAF Beijing100091;Nanjing Forestry University Nanjing210037
  • Received:1999-11-01 Revised:1900-01-01 Online:2000-11-25 Published:2000-11-25

摘要: 本文对银杏(Ginkgo biloba L .)x射线木材密度曲线分形分析,结果表明,银杏木材密度的分形维数约在1.4430。分形维数直观地反映了木材密度年轮内和年轮间的变化规律,与年轮宽度有一定的联系,与木材密度本身关系不大。木材密度的分形维数一般由遗传因素控制,不同树种木材分形维数是相对固定的。木质材料的分形研究,是揭示其内在规律的有效方法。

关键词: 银杏, 木材密度曲线, 分形

Abstract: The results of x-ray wood density of Ginkgo showed that the wood density was fractal in inter ring, intra-ring and whole-disc. The fractal dimension of Ginkgo wood from Jiangsu Province was 1.4430, respectively. Fractal dimension was a very important quantity of wood properties, it has relation with the ring width and has little relation with the ring density. The application of fractal theory is at the beginning of going into the wood science. It will make a great development in the wood science in future.

Key words: Ginkgo, Wood density curve, Fractal