| 柏木(Cupressus funebris Endl)材质、材性要素的宏观生态变异 |
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| 引用本文： | 唐君畏 杨冬生. 柏木(Cupressus funebris Endl)材质、材性要素的宏观生态变异[J]. 四川农业大学学报, 1993, 11(1): 138-144 |
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| 作者姓名： | 唐君畏 杨冬生 |
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| 作者单位： | 四川农业大学林学系,四川农业大学林学系 雅安市 625014,雅安市 625014 |
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| 基金项目： | 四川省科委应用基础课题"柏木材质变异与生态环境关系研究"的第二部分 |
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| 摘 要： | 在随机抽取木材样件并进行材质材性测定的基础上,通过典型正交分析,研究了柏木材质的宏观生态变异规律。结果表明林型、立地类型、栽培区和经营类型的改变显著地影响到柏木的材质材性要素。与阔叶树种混交显著增大了气干密度、管胞长度和年轮宽度,提高了木材抗压,抗弯强度;随着立地的贫瘠化,木材抗压、抗弯强度增大;栽培区和经营类型的改变主要通过调节木材数量生长影响及材质、材性。研究结果为柏木材质定向培育提供了科学的措施依据。
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| 关 键 词： | 柏木(45NL 49GG) 木材 质量 培育 正交分析 木材学(49JF) 立地条件类型(49GB) |
THE MACRO-ECOLOGICAL VARIATION OF WOOD QUALLTY FACTORS WITH CUPRESSUS FUNEBRIS ENDL IN SICHUAN |
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| Tang Junwei Yang Dongsheng. THE MACRO-ECOLOGICAL VARIATION OF WOOD QUALLTY FACTORS WITH CUPRESSUS FUNEBRIS ENDL IN SICHUAN[J]. Journal of Sichuan Agricultural University, 1993, 11(1): 138-144 |
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| Authors: | Tang Junwei Yang Dongsheng |
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| Abstract: | Based on random sampling in the field and wood quality measurements the macro—ecological variation pattern of wood quality of Cupressus funebris Endl. was studied with typical orthogonal analysis. It is indicated that wood quality factors are. significantly changed in response to the variation of forest type, site, planting area and management regime. Intercropping with soft broadleaved trees has efffectively increased wood density, fiber — tracheid length and average ring width, enhanced wood crushing and bending strength. With site deterioration the wood crushing and bending strength is increased. Change of management regime and planting area Causes wood quality variation through growth regulation. The results provide cypress silvicultural practice with scientific |
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| Keywords: | CHINESE WEEPING CYPRESS TIMBER QUALITY SILVICULTURE ORTHOGONAL ANALYSIS WOOD SCIENCE SITE-TYPE |
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