Abstract: The paper points to the importance of the study wood-confornation and takes down the economic wood included Beech Family, Elm Family , Ebouy Family et in northwest zone.

• 摘 要： 本文论述了研究木材构造的重要性，并对西北地区的经济树木壳斗科、榆科、柿科等西北经济树种木材构造做了记载。