摘要
对福州市仓山区9条主干道绿化带的行道树树种、种植结构和交通噪声、车流量进行调查．结果表明，在8：00～12：00及14：00～17：00时段，中心城区干道交通噪声在65．28～77．38dB之间，污染较严重．绿化带配置方式可分为5种类型，其中单一乔木型和乔木＋灌木型占76．5％．9条干道交通噪声的平均消减率为0．42％～7．31％，在监测点b（行道树冠在人行道方向的垂直投影点）处消减率以六一南路的最高（为3．86％），点e（离b点3m）处则以三高路的最高（为5．90％）．结合行道树种与配置方式，以乔木＋乔木＋灌木＋草坪型（白兰花＋大花紫薇）的减噪效果最佳（点b和c处减噪率分别为3．95％和7．28％）．因中心城区干道绿地面积有限，行道树树种及其配置模式是影响绿化带减噪效果的关键因素．
Focusing on the species and planting structure of the roadside trees, traffic noise and vehicle flow in 9 main roads in downtown of Cangshan District, Fuzhou are investigated. The results showed that, the traffic noise were 65.28 -77.38 dB and the noise pollution were heavy in 8： 00- 12：00 and 14：00 - 17： 00. The configuration modes could be divided into 5 types, with the single arbor type and arbor ＋ shrub type totally accounting for 76. 5 % of them. The average noise-reducing rates of the roadside trees unevenly varied from 0.42% to 7.31%. In monitoring point B, which was the roadside tree＇s crown vertical projection point in the direction of sidewalk, the highest average noise-reducing rate was in South Liuyi Ave. （3.86%） , and the highest reduc- ing rate of monitoring C （3 m away from the point b） was in Sangao Ave. （5.90%）. As to the tree species and configuration, the type of arbor ＋ arbor ＋ shrub ＋ grass has the best noise reduction effect （the noise-reducing rates were 3.95% and 7.28% respectively）. Due to the limited areas of green land in downtown, roadside tree species and their configuration mode must be included as the key factors that affect the noise reduction effects.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2014年第2期90-98,共9页
Journal of Fujian Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(31000298)
福建省自然科学基金资助项目(2009J05055)
福建师范大学优秀青年骨干教师培养基金资助(fjsdjk2012075)
关键词
行道树
交通噪音
减噪效果
福州
roadside trees
traffic noise
noise reduction effect
Fuzhou
