园林景观植物群落分布对城市空气污染的消减作用研究

ReducingEffect of Landscape Plant Community Distribution on Urban Air Pollution

高密度、多样性的植物群落可以有效吸附、过滤空气中的颗粒污染物,降低城市空气污染水平。因此,探究园林景观植物群落分布对城市空气污染的消减作用。调查不同地区的植物分布情况和空气质量指标,评估园林景观植物群落的吸附和过滤能力。结果显示,郁闭度和斑块面积与污染物消减率呈显著的正相关关系;多层复合结构的乔灌草型园林景观植物群落分布,对城市空气污染物的消减效果最优。合理分布特定类型的植物群落,对周围区域空气污染具有较强的净化效果,可有效改善城市空气质量。

High density and diversity of plant communities can effectively adsorb and filter particulate pollutants in the air,reducing the level of urban air pollution.Therefore,this study explores the reducing effect of plant community distribution in garden landscapes on urban air pollution.It investigates the distribution of plants and air quality indicators in different regions,and evaluates the adsorption and filtration capacity of landscape plant communities.The results showed that there was a significant positive correlation between canopy density,patch area,and pollutant reduction rate.The distribution of tree shrub grass type landscape plant communities with multi-layer composite structure has the best reduction effect on urban air pollutants.Reasonable distribution of specific types of plant communities has a strong purification effect on air pollution in surrounding areas,which can effectively improve urban air quality.