植物配置对交通道路气态污染物的净化效益研究  

Study on Purification Effect of Plant Communities on Gaseous Pollutants in Traffic

作　　者：胡眸 殷杉[1] 汤晓敏[1] HU Mou;YIN Shan;TANG Xiao-min(Shanghai Jiao Tong University,Shanghai 200240,PRC)

机构地区：[1]上海交通大学,上海200240

出　　处：《湖南农业科学》2020年第6期82-85,共4页Hunan Agricultural Sciences

摘　　要：对上海浦东某交通干道及旁侧绿化带中气体污染物NO2、SO2进行监测,定量研究其净化效益与植物群落郁闭度、疏透度、绿量之间的相关性,探讨交通绿化带植物群落的最佳配置方式。结果表明:植物群落对气体污染物NO2、SO2有10%~30%的净化效果,净化百分率与植物群落的郁闭度、二维绿量、三维绿量成正相关关系,同疏透度成负相关关系,其中与三维绿量相关性最为显著,当三维绿量达到5 m^3/m^2以上时,空气中的NO2和SO2能获得20%以上净化率。根据研究结论和景观设计学相关知识,对交通绿化带植物群落配置提出相关建议,并设计了2种具体的植物群落配置模式;从距离路边由近到远,模式一依次为麦冬、火棘、雪松、桂花、狗牙根、香樟;模式二依次为小叶黄杨+红花檵木、红花酢浆草+狗牙根、夹竹桃、女贞、二月兰、水杉。The gaseous pollutants NO2 and SO2 of an arterial road and its roadside green belt in Pudong of Shanghai were monitored.Furthmore,the quantitative analysis of the correlation between purification effect and plant community canopy density,porosity and green biomass was made for the optimum configuration of plant community in traffic green belt.The results showed that the plant community had a purification effect of 10%~30%for the gaseous pollutants NO2 and SO2,and the purification percentage was positively correlated with the canopy density,two-dimensional green biomass and three-dimensional green biomass,and negatively related to the porosity.There was a significant correlation between three-dimensional green biomass and purification effect.When the three-dimensional green biomass was over 5 m^3/m^2,NO2 and SO2 in the air obtained a purification rate>20%.According to the research results and the knowledge of landscape design,we proposed some suggestions for the configuration of plant communities in the traffic green belt,and designed two kinds of specific plant community configuration modes,from roadside,in turn,was Ophiopogon japonicus,Pyracantha fortuneana,Cedrus deodara,Osmanthus fragrans,Cynodon dactylon and Cinnamomum bodinieri or Buxus sinica+Loropetalum chinense,Oxalis corymbosa+Cynodon dactylon,Nerium indicum,Ligustrum lucidum,Orychophragmus violaceus and Metasequoia glyptostroboides.

关 键 词：交通绿化带 NO2 SO2 污染 净化效益 植物群落 最佳配置模式 

分 类 号：X511[环境科学与工程—环境工程]