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作 者 ：林伟奇 肖羽柏 陈莉

期 刊 ：林业科学 1993年 29卷 2期 页码：139-144

关键词：木材平衡含水率；吸湿滞后；线性回归方程；t-φ-We图。；

Keywords:Equilibriummoisturecontentofwood, Moistureabsorptionhysteresis, Linearreqressionequation, Graphoft-φ-W.,

摘 要 ：根据1972-1974年在广州测定的数据,通过电子计算机进行运算,得出W_e=-2.657557-0.01391679t+0.2315497φ线性回归方程式。并用北京、哈尔滨、十堰、厦门等地的平衡含水率实测值与线式计算值、现行教科书中的曲线回归方程式进行比较。这些材料说明,在表示木材平衡含水率与周围大气温湿度之间变化规律时,线性回归方程优于曲线回归方程。另外,还对木材吸湿和解吸进行具体地论述。

Abstract:The equilibrium moisture contents (EMC) of wood varies with the relative humidity and temperature of the surrounding air. On the basis of the measured data in Guangzhou during 1972-1974, the following linear regressionequation has been obtained: W_e=2.657557-0.01391679t+0. 2315497φ Comparing the measured data of the EMC of Beijing, Harbin, Shiyan Xiamenand so forth with the caculated values by the above linear regression equationand curvilinear regression equation in the textbook, it is considered that thelinear reqression equation is more suitable than the curvilinear equation toexpress the relationship between EMC and condition of air. The author have also described the moisture absorption as well as desorption of wood in detail.

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