In the Nanhaizi Park, Beijing Botanical Garden, Xishan Forest Park and Songshan Nature Reserve, taking pine, Pinus bungeana, Sophora japonica, willow and poplar typical greening tree species as the research object. In autumn, the leaf of each tree species was collected, and the PM2.5 adsorption capacity of the leaf surface of different tree species was obtained by using aerosol generator. The results showed that the Nanhaizi Park and Songshan Nature Reserve are cypress and pine, the maximum adsorption capacity, adsorption capacity respectively: 0.26±0.0038 μg/cm2, 0.18±0.022 7 μg/cm2 and 0.252±0.228 1 μg/cm2, 0.162±0.016 7 μg/cm2, Beijing botanical garden is the most prominent with pine (0.33±0.122 μg/cm2) and cedar(0.43±0.099 μg/cm2), The Xishan Forest Park pine adsorption amount was higher than that of other species of the same species, the adsorption capacity was1.078±0393 4 μg/cm2. It is the minimum value (acer monoes) 9.6 times, The adsorption capacity of PM2.5 in the same location of different tree species was significantly higher than that of coniferous tree species, and the difference of adsorption capacity between the coniferous species was significant; The adsorption capacity of PM2.5 in a different place, the basic performance for sea son Park Botanical Gardens in Beijing Xishan Forest Park > Beijing Botanical Garden > Nanhaizi Park > Songshan Nature Reserve, species adsorption amount and concentration of atmospheric particulates were positively correlated, The willow, poplar (P < 0.05) and Pinustabulaeformis (P < 0.01) leaf surface PM2.5 adsorption amount and atmospheric particulate matter concentration into showed a significant positive correlation,namely in a certain range, leaf tree species in PM2.5 adsorption amount according to the severity of air pollution.%在南海子公园、北京植物园、西山森林公园和松山自然保护区四个园林绿化区内以油松、白皮松、国槐、柳树和杨树等常见典型绿化树种为研究对象，于秋季采集各树种叶片，应用气溶胶再发生器获得不同树种叶片表面 PM2.5吸附量，并用电镜扫描叶表面特征。结果表明：南海子公园和松山自然保护区中均是桧柏和白皮松的吸附量最大，分别为0.26±0.0038、0.18±0.0227μg/cm2和0.252±0.2281、0.162±0.0167μg/cm2，北京植物园中则是以油松（0.33±0.122μg/cm2）和雪松（0.43±0.099μg/cm2）最为突出，而西山森林公园中油松吸附量明显高于其它树种同一树种，其吸附量为1.078±03934μg/cm2，是最小值（五角枫）的9.6倍，说明不同树种在相同地点对 PM2.5的吸附量基本表现为针叶树种高于阔叶树，且针叶树种间吸附量差异较阔叶树种间差异显著；不同地点 PM2.5的吸附量，基本表现为西山森林公园＞北京植物园＞南海子公园＞松山自然保护区，树种吸附量与大气颗粒物浓度均呈正相关性，其中柳树、杨树（P ＜0.05）和油松（P ＜0.01）叶表面 PM2.5吸附量与大气颗粒物浓度成呈显著正相关，即在一定范围内，树种叶片 PM2.5吸附量随空气污染的加重而增加。
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