不同立地条件的白蜡杆生长规律及纤维形态特征研究  

Growth Regularity and Fiber Morphology of Fraxinus chinensis Growing in Different Site Conditions

作　　者：杨红旗[1,2] 刘艳萍[3] 陈广辉[1] 李江晓[1] 杨亚峰[1] 陈志林[2] 

机构地区：[1]河南农业大学,河南郑州450002 [2]中国林业科学研究院,北京100091 [3]河南省林业科学研究院,河南郑州450008

出　　处：《西北林学院学报》2012年第3期197-200,共4页Journal of Northwest Forestry University

基　　金：国家“十一五”科技支撑计划项目(2006BAD18B06);河南省科技攻关项目(102102110124)

摘　　要：以6年生白蜡杆为研究对象,采用树干解析和木材离析方法,对不同立地条件上白蜡杆的树高、地径和材积生长量进行了测定和分析;借助电子显微镜,从微观角度对白蜡杆木材解剖性质及其径向和轴向变异规律进行了测定和分析。结果表明,不同立地条件上白蜡杆树高、地径和材积生长量差异显著,2个立地条件上纤维长度、纤维宽度和纤维长宽比径向变异规律一致,纤维形态特征在株内不同高度间差异显著。Stem-analysis and timber segregation examination were conducted to investigate the effects of different site conditions on the height,ground diameter,volume and fiber morphology of Fraxinus chinensis of 6-year-old.The anatomical properties and their variation patterns were systematically studied by using electronic microscope.The results showed that the growth difference was significant in different sites,it grew better in site with sufficient water and fertilizer and good soil texture.The radial variation of the fiber length,fiber width,ratio of fiber length to width were consistent in different site conditions.The fiber morphological features in different tree heights were significantly different.

关 键 词：白蜡杆 立地条件 生长规律 纤维形态 

分 类 号：S781.1[农业科学—木材科学与技术]