夏季城市两种道路绿化类型空气颗粒物浓度的变化对比研究  

Changes in concentration of air particulate matter of different configurations of urban road planting in summer

作　　者：于丽胖[1] 郄光发[1,2] 王成[1,2] 

机构地区：[1]中国林科院林业所国家林业局森林培育重点实验室,北京100091 [2]国家林业局城市林业研究中心,北京100091

出　　处：《中国城市林业》2009年第3期55-57,共3页Journal of Chinese Urban Forestry

基　　金：国家"十一五"科技支撑计划重大项目课题"林业生态建设关键技术研究与示范"(2006BAD03A06;2006BAD03A17)

摘　　要：文章选取了同一条道路上的两段不同绿化配置形式作为实验样地,实地监测了晴天和阴天两个典型天气条件下街道中空气颗粒物浓度的日变化特征,并比较了在典型天气条件下两种道路绿化配置形式对街道中空气颗粒物扩散的影响。The same street of two different road planting configuration was used as experimental samples. The diurnal variation of PM in sunny day and cloudy day was monitored and the influence of the two different road planting configurations on PM concentration in the street was compared. Results indicate that in sunny day the daily changes of air particulate was in ＂S＂ form, the lowest concentration was at about 16：00 in the afternoon, and the highest concentration at about 20：00 in the evening. In cloudy weather, the daily fluctuation was in ＂V＂ form with two peaks and one valley, and the two peaks present at 8：00 in the morning and 18：00 in the evening, the valley appeared at 14：00 in the afternoon. No matter in sunny or cloudy weather, for the air particulate caused by traffic, the sparse configuration of the whole road plantings is more conducive to diffusion of PM than the compact configuration.

关 键 词：空气颗粒物 颗粒物浓度 道路绿化 绿化类型 城市 夏季 配置形式 天气条件 

分 类 号：S731.2[农业科学—林学]