<正>对扬州古运河风光带不同绿化模式的生态环境效应进行了初步研究，结果表明：春季（春末夏初）各模式林地的噪音和空气含尘量均有极显著或显著的差异，减噪效应和减尘效应从强到弱依次均为模式绿化群落、模式区内草坪、对照（模式区旁硬质园路）。生态环保型模式群落、生态保健型群落与生态景观型群落的噪音分别比对照减少12.63%～20.20%，9.22%～14.59%，8.86%～9.71%；空气含尘量分别比对照减少了63.65%，55，00%和54.68%，比草坪减少36.40%，19.19%和5.12%。扬州琼花（木本）群落也有明显的减噪效应，该群落内噪音分别比对照（硬质园路）与草坪（模式区内）减少14.13%和4.00%。

Dynamic properties of bamboo (Phyllostachys edulis) with different moisture content from -130～130℃ were studied by a dynamic mechanical analysis. The results showed that hygrothermal effects on dynamic mechanical properties were negative. The storage modulus was down upon the temperature enhancement and moisture content increment and glass transition temperature moved to lower temperature with the moisture content increased. The glass transition temperature and tan delta of bamboo were 30.5℃, 0.02 and 10.61℃, 0.04 when moisture content was 10% and 34%, respectively.