两种栽培措施五人工经济林核桃木材纤维形态特征的比较研究

对粗放与集约两种栽培措施下人工经济林核桃木材纤维形态特征进行了系统分析。结果表明，（1）与粗放管理的人工经济林核桃相比较，集约的纤维长度，宽度，壁厚，腔径，长宽比和壁腔比均小，方差分析表明只有纤维宽度，壁厚在0．05水平显著，其它特征均未达显著水平。（2）两种栽培措施下纤维长度，宽度，壁厚，长宽比和壁腔比的径向变异规律差异不大。（3）集约管理的核桃的各种纤维形态特征和粗放管理的纤维长度，宽度，腔径和长度比等特征的轴向差异的不显著；粗放管理的壁厚，壁腔比的轴向差异显著。（4）两种栽培措施下的大部分纤维形态特征及其径向和轴向变异规律差异不大。

Studies on Fiber Morphological Features of Economic Plantation Walnut Grown in Two Kinds of Silvicutures

The fiber formal features of economic plantation walnut planted in Fenyang Walnut Seed Garden of Shanxi province of China were studied in this paper. The results were as follows:(1)Contrasted with the walnut trees cultivated with fertilization,graft and shear measures, each average of fiber feature of the walnut trees without such measures were bigger,only fiber tangential diameter and double cell wall thickness of which differ significantly.(2)For the two kinds of silvicultures,the radial variation patterns of fiber length, fiber length diameter ratio, fiber tangential diameter and double cell wall thickness were analogous:from pith to bark, first increase moderately, after a few years undulate.(3)For the two kinds of silvicultures,the patterns of the longitudinal variation of the fiber tangential diameter, fiber length and fiber length diameter ratio were alike,and the patterns of the longitudinal variation of the double cell wall thickness and fiber wall diameter ratio were different. So the average of the main fiber formal features and the patterns of the variation of the two kinds of silvicultures were alike.