合肥市行道树结构的研究

Research in Structure of the Roadside Trees in Hefei

在对合肥市环城高速范围内道路调查的基础上,通过统计分析,得出:1)合肥市行道树有22种,隶属16科20属,以香樟、广玉兰、悬铃木、国槐、女贞为主。2)合肥市树高在11m以上的行道树共有10999株,只占行道树总数的8.7%,大部分树种的树高都在11m以下,特别是香樟和广玉兰树m高都在11m以下。3)合肥市胸径在31 cm以上的行道树共有10951株,只占到合肥市行道树总数的8.7%,其中以悬铃木为主,计9484株,占胸径31 cm以上行道树的86.6%。4)合肥市常绿行道树共计78717株,落叶行道树共计47318株。常绿与落叶行道树的比例为5∶3。

Based on the investigation of the streets in the rang of ring road of Hefei, the results are summarized as follows： （ 1 ）There are 22 species roadside trees in Hefei, and they belong to 16 families and 20 generals. Most of them are Cinnamonum camphora, Magnolia graudiflora, Platauus aeerifolia, Sophora japonica and Ligustrum lueidum. （2） The number of the roadside trees whose height are larger than ll meters is 10999, and it only takes 8.7% in the whole number. The height of most species is smaller than 11 meters, especially for Cinnamonum eamphora and Magnolia grandiflora. （3）The number of the street trees whose dbh are larger than 31 cm is 10951, taken 8.7% of the whole proportion, and most of them arc Platanus aeerifolia which number are 9484, taken 86. 6% of the last proportion . （4） The number of the evergreen street trees are 78717 ,which of the deciduous street trees are 47318. The scale of them is 5 to 3.