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以安徽琅琊山天然散生刺楸［Ｋａｌｏｐａｎａｘｓｅｐｔｅｍｌｏｂｕｓ（Ｔｈｕｎｂ．）Ｋｏｉｄｚ．］正常生长的和树干有１０°倾斜的各采一株为材料，研究应拉木材性与正常木材性的差异。结果表明：应拉木可分为三区：即与髓心较远的应拉区（Ｔ区），与髓心较近的对应区（Ｏ区）和与Ｔ区和Ｏ区相连的两侧区（Ｓ区）；应拉木所含大量胶质木纤维主要分布在Ｔ区，Ｔ区木纤维组织比量和基本密度均大于Ｓ区和Ｏ区，但顺纹抗压强度最低，干缩系数最大。应拉木三区与正常木材性相比，除木纤维组织比量外，其余材性指标均劣；应拉木Ｓ区材性与正常木材性稍接近一些，但差异还较大。
To Langya Mountain in Anhui natural Katayana [Kalopanaxseptemlobus (Thunb.) Koidz. ] The normal growth and trunk 10 ° tilt of the mining of a strain of material to study the difference between the timber should be pulled and normal wood sex. The results showed that there were three zones in Okinawa: that is, zone T (T zone) which was far from the center of the pith, zone (O zone) which was close to the center of the pith and both sides which was connected with zone T and zone O (S zone). A large amount of colloidal wood fibers contained in Tensile wood mainly distribute in T zone. The wood fiber proportion and basic density in T zone are larger than those in S zone and O zone, but the compressive strength of the parallel lines is the lowest, The largest coefficient. Should pull the wood three districts compared with the normal wood, in addition to the wood fiber than the amount of the remaining material indicators are poor; wood properties should be similar to the S zone and normal wood slightly closer, but the difference is still large.