| Intratree Variability of Tensile Strength Parallel to Grain in Chinese Fir and I-214 Poplar from Plantation |
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| 作者姓名： | XU Ming REN Haiqing LI Xiazhen Research Institute of Wood Industry Chinese Academy of Forestry Beijing P.R.China |
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| 作者单位： | XU Ming REN Haiqing LI Xiazhen Research Institute of Wood Industry，Chinese Academy of Forestry，Beijing 100091，P.R.China |
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| 基金项目： | This work was supported by State Science and Technology Infrastructure Platform Projects (2004DEA70900). |
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| 摘 要： | The variation of tensile strength parallel to grain in Chinese fir and I-214 poplar wood from plantations was studied in this paper. Aaccording to the national standards The Testing Methods for Physical and Mechanical Properties of Wood (GB 1927 to 1943 ? 1991), the small clear wood samples were cut and tested, which represent the south and north of trees with heights of 1.3, 3.3, 5.3 and 7.3 m. The results showed: the tensile strength parallel to grain of the north wood was higher than that of south wood. ANOVA shows that the tensile strength parallel to the grain with height is of significant difference (at 0.05 level).
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| 关 键 词： | Chinese fir (Cunninghamia lanceolata) I-214 poplar (Populus × euramericana cv. ) tensile strength parallel variability |
Intratree Variability of Tensile Strength Parallel to Grain in Chinese Fir and I-214 Poplar from Plantation |
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| XU Ming REN Haiqing LI Xiazhen Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing ,P.R.China.Intratree Variability of Tensile Strength Parallel to Grain in Chinese Fir and I-214 Poplar from Plantation[J].中国林业科技(英文版),2007(3). |
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| Authors: | XU Ming REN Haiqing LI Xiazhen Research Institute of Wood Industry Chinese Academy of Forestry Beijing PRChina |
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| Institution: | XU Ming REN Haiqing LI Xiazhen Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,P.R.China |
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| Abstract: | The variation of tensile strength parallel to grain in Chinese fir and I-214 poplar wood from plantations was studied in this paper. Aaccording to the national standards The Testing Methods for Physical and Mechanical Properties of Wood (GB 1927 to 1943 ? 1991), the small clear wood samples were cut and tested, which represent the south and north of trees with heights of 1.3, 3.3, 5.3 and 7.3 m. The results showed: the tensile strength parallel to grain of the north wood was higher than that of south wood. ANOVA shows that the tensile strength parallel to the grain with height is of significant difference (at 0.05 level). |
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