交通节能与环保2025，Vol.21Issue(5)：5-12,8.DOI:10.3969/j.issn.1673-6478.2025.05.002
垂直绿化布置方式对街道PM2.5浓度的影响模拟研究
Study on the Effect of Vertical Greening Layout on PM2.5 Concentration in Streets
摘要
Abstract
Taking a street in Hengyang City as the research object,this research used ENVI-met software to simulated the effect of five different vertical greening arrangements on the distribution of street PM2.5 and the partition of street PM2.5 concentration level under the conditions of Crossover type Ⅰ,Crossover type Ⅱ,Crossover type Ⅲ,left low-right high type,and left high-right low type.The results showed that:(1)vertical greening can influence the street flow field by changing the external surface morphology of the outer wall in contact with the air of the street,thus affecting the dust retention effect of vertical planting;(2)the relatively complex layout of vertical green thickness is more conducive to lower street PM2.5 concentration level,and the retention effect of different vertical greening arrangement on PM2.5 is follows from large to small:crossover typeⅠ>left high-right low type>left low-right high type>crossover type Ⅱ>crossover type Ⅲ;(3)the groove structure generated by the alternating layout of different vertical greening thickness can effectively reducing the wind speed on the vertical planting surface and increasing the amount of dust absorption of vertical greening.关键词
PM2.5/垂直绿化/布置方式/ENVI-metKey words
PM2.5/vertical greening/layout mode/ENVI-met分类
环境科学引用本文复制引用
刘建龙,杨澜,唐晴,许锋,周锦艳..垂直绿化布置方式对街道PM2.5浓度的影响模拟研究[J].交通节能与环保,2025,21(5):5-12,8.基金项目
湖南省省市联合基金资助项目(2022JJ50069 （）
20221J50081) （）
