关键词: 冬季常绿植物, PM2.5, 吸附

Abstract: In order to understand the relationship between the planting method, position and PM2.5 adsorpted by evergreen plants in the northern winter, guide the garden configuration of evergreen plants, reduce the pollution of heavy fog period, the PM2.5 concentration were analyzed around the plants and in the woodland with four kind of evergreen plants and two planting types in Tianjin Chengjian University. The results showed that:（1）The concentration of PM2.5 around evergreen plants depended on one in the atmosphere. （2）In the heavy fog weather, evergreen plants reduced PM2.5 in some extent, and there was obvious different PM2.5 on each position of plants, which were more relevant each other.（3）The concentration of PM2.5 was lowest among the woodlands of Sabina, Pinus bungeana, and Euonymus japonicas but highest above the plants, also lower in the southern and northern edges of Euonymus japonicas（Second only to the internal of community）. The concentrations were highest under rows of plants near the north but were lowest in the middle of the plants, rows, plant height at 1/2.（4）The planting position of plants with rows and areas was highly correlated with PM2.5 concentration, their correlation coefficient was more than 0.9 and 0.8. Therefore, it is recommended that the activity areas should be established in the forests or on the south side of acres planting evergreen.

Key words: evergreen plants in winter, PM2.5, adsorption