文献类型：期刊文献

英文题名：Predicting the flexural properties of Chinese fir (Cunninghamia lanceolata) plantation dimension lumber from growth ring width

作者：Jiang, Jinghui[1] Lu, Jianxiong[1] Ren, Haiqing[1] Long, Chao[1]

第一作者：江京辉

通信作者：Lu, JX[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2010

卷号：56

期号：1

起止页码：15-18

外文期刊名：JOURNAL OF WOOD SCIENCE

收录：;EI(收录号：20100712719786);Scopus(收录号：2-s2.0-76649138282);WOS:【SCI-EXPANDED(收录号:WOS:000274467700003)】；

基金：The author extends gratitude to Prof. Xiuqin Luo, Dr. Yafang Yin, and Assistant Prof. Zhaohui Luo for their support for this study. Parts of this work were financially supported by the standard system on forestry engineering supported by Ministry of Science and Technology (2004DEA7090-1) and machining and processing technology of constructional lumber supported by key project of Ministry of Science and Technology (2006BAD18B07).

语种：英文

外文关键词：Chinese fir plantation; Dimension lumber; Average growth ring width; Density; Flexural properties

摘要：In this report, the 575 specimens were divided into ten groups based on range of growth ring width. The modulus of elasticity (MOE) and modulus of rupture (MOR) of 45 x 90 mm specimens of Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) plantation dimension lumber were analyzed by average growth ring width and average density of each group. The results showed that the average growth ring width was in inverse proportion to density, MOE, and MOR of the dimension lumber. Furthermore, average density was in direct proportion to MOE and MOR of the dimension lumber. The coefficient of determination (R (2)) for all the regression equations ranged from 0.7340 to 0.9207 at a significance level of 0.001. However, without such group classification, there was poor relationship between growth ring width, density, MOE, and MOR with a determination coefficient of 0.0901-0.1855. This finding suggested that it was feasible to predict the flexural properties of Chinese fir plantation dimension lumber by average growth ring width after specimen group classification.