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用取自临沂市的１１年生Ｉ－６９／５５杨、Ｉ－２１４杨和１６年生毛白杨的树木，在新西兰林科院用标准试验方法进行了木材密度、心材比例、干缩率、应拉木及各项力学性能测试。对３种杨树木材的测试结果进行比较：毛白杨木材密度较高，Ｉ－６９／５５杨的木材密度与毛白杨相近，Ｉ－２１４杨的密度最低；心材含量以Ｉ－６９／５５杨最高，Ｉ－２１４杨次之，毛白杨最低；Ｉ－６９／５５杨木材干缩率较高，Ｉ－２１４杨次之，毛白杨干缩率较低，干燥时３种杨木均有皱缩，以Ｉ－６９／５５杨皱缩较重；毛白杨含中度应拉木，Ｉ－６９／５５杨含轻微应拉木，Ｉ－２１４杨不含应拉木；所测的力学性能指标以毛白杨较高，Ｉ－６９／５５杨次之，Ｉ－２１４杨最低。对小直径柱状试样进行了木材密度、心材比例及纤维长度的分析，用这种方法能方便地估测木材性质。
Wood density, heartwood ratio, dry shrinkage rate should be measured by standard test method in New Zealand Academy of Forestry Branch with trees from 11-year-old I-69/55 poplars, I-214 poplars and 16-year-old Populus tomentosa in Linyi. Wood and various mechanical properties testing. The results of three kinds of poplar wood were compared: Populus tomentosa wood density is higher, I-69/55 poplar wood density is similar to Populus tomentosa, I-214 poplar density is the lowest; heartwood content of I-69/55 poplar The highest was I-214 and the lowest was Populus tomentosa. The shrinking rate of I-69/55 poplar wood was higher, followed by I-214 Yang and lower dry shrinkage of Populus tomentosa, I-69/55 Yang shrank heavier; Populus tomentosa with moderate should pull wood, I-69/55 Yang with a slight strain of wood, I-214 Yang does not contain tensile wood; measured mechanical properties to Poplar is higher, I-69/55 Yang times, I-214 Yang lowest. Small diameter columnar samples were analyzed for wood density, heartwood ratio, and fiber length, and wood properties were easily estimated using this method.