景观园林绿化对空气污染物的净化作用研究

Analysis of Purification Effect of Landscape Greening on Air Pollutants

植物对维持生态平衡具有重要作用,为此,分析景观园林绿化对空气污染物的净化作用。以植物中的同位氮元素对应空气中的二氧化氮污染物,分别在设定“道路组”和“园林组”的地域类型中,确定不同植物对污染物的净化作用。本次选择白蜡、白杨和柏树作为测试对象,按照适应度指标和生态指标设计净化作用分析方法,得出上述植物对二氧化氮的吸收量。结果表明:不同植物对二氧化氮均具有吸收和消减作用,在“园林组”中白蜡的吸收作用更强,在“道路组”中白杨和柏树的吸收作用较强,可以根据实际情况进行绿化布置。

Plants play an important role in maintaining ecological balance.Therefore,the purification effect of landscape greening on air pollutants was analyzed.The nitrogen dioxide pollutant in the air is corresponding to the nitrogen element in the same position in plants,and the purification effect of different plants on pollutants is determined in the regional types of“road group”and“Garden Group”,respectively.Fraxinus,populus alba and cypress were selected as the test objects,and the purification analysis method was designed according to the fitness index and ecological index to obtain the absorption amount of nitrogen dioxide by the above plants.The results showed that different plants had absorption and reduction effects on nitrogen dioxide,the absorption effect of Fraxinus was stronger in the“Garden Group”,and the absorption effect of populus alba and cypress was stronger in the“road group”,which could be arranged according to the actual situation.