[目的]通过研究邓恩桉的生长特性和生长应变,为邓恩桉木材利用提供科学数据.[方法]以9.5年生人工林邓恩桉为研究对象,测定和评估树高(Ht)、胸径(DBH)、胸高比(DBH/Ht)、生长应变,并分析生长应变与生长性状的相关性.[结果]邓恩桉树高、胸径和生长应变的小区间差异显著.胸径和生长应变的变化幅度分别为10.2～ 24.5 cm,-0.227 ～-0.0M mm.生长应变水平在上坡方向显著高于下坡方向.邓恩桉生长应变与树高、胸径、胸高比无显著相关性.[结论]邓恩桉可作为速生材培育,邓恩桉木材的生长应力不受生长性状的影响.实现高生长和选择低应力水平的速生邓恩桉作为实木加工是可行的.%The aim was to provide the scientific data for utilization of E.dunnii wood through investigating its growth and growth strain.[Method] With 9.5-year-old E.dunnii plantation as study object,tree height (Ht),diameter at breast height (DBH),ratio of diameter to tree height (DBH/Ht),growth strain and their correlations were estimated and analyzed.[Result] There were significant differences in Ht,DBH and growth strain between plots.DBH and growth strain were in the range of 10.2-24.5 cm,-0.227--0.064 mm,respectively.Uphill growth strain was significantly greater than the downhill growth strain.Growth strain had no significant correlations with Ht,DBH or DBH/Ht ratio in E.dunnii.[Conclusion] E.dunnii was a potentially fast-growing species.It was feasible to obtain fast-growing E.dunnii trees with low level of growth strain as the strain was not affected by its growth.
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